Patent Publication Number: US-2021178914-A1

Title: Modular bicycle designs

Description:
TECHNICAL FIELD 
     One or more embodiments of the present disclosure relate generally to electric bicycles and more particularly, to electric bicycles that are configurable with modular accessories. 
     BACKGROUND 
     Contemporary transportation services often rely on a network of sharable vehicles that is ready for hire anytime and anywhere. For example, batches of single-rider (or possibly two-rider) vehicles such as electric bicycles and scooters alike may be placed in different locations of a city that enable users to easily hire and return the vehicles as needed. However, different users may desire such vehicles in different configurations based on their different needs. Providing different types of vehicles (e.g., in different configurations and/or arrangements) ready to be hired can be costly and inefficient, especially when demands for the different configurations of the vehicles may change over time. Therefore, there is a need in the art for configurable vehicles, in particular, electric bicycles that can be adapted with different modular accessories. 
     SUMMARY 
     Techniques are disclosed for systems and methods to provide a configurable electric micro-mobility vehicle that can be configured with modular accessories. In accordance with one or more embodiments, a micro-mobility vehicle may include a frame comprising a seat tube; a first wheel and a second wheel; an electric motor configured to mobilize at least the first wheel; a battery pack comprising a connector; an electrical connector configured to receive electrical power from the battery pack and transfer the electrical power to the electric motor; and a battery compartment physically coupled to the seat tube and configured to secure the connector of the battery pack to the electrical connector, wherein the battery compartment comprises an opening at a first end that enables the battery pack to slide in and out of the battery compartment along a direction substantially parallel or perpendicular to the seat tube. 
     In other embodiments, a method may include determining that a charge level of a first battery pack connected to a micro-mobility vehicle is below a threshold; in response to the determining, removing the first battery pack by sliding the first battery pack out of a battery compartment of the micro-mobility vehicle through an opening of the battery compartment in a direction that is substantially parallel or perpendicular to a seat tube of the micro-mobility vehicle, wherein the battery compartment is physically coupled to the seat tube; and connecting a second battery pack to the micro-mobility vehicle by sliding the second battery pack along the direction into the battery compartment through the opening. 
     The scope of the invention is defined by the claims, which are incorporated into this section by reference. A more complete understanding of embodiments of the invention will be afforded to those skilled in the art, as well as a realization of additional advantages thereof, by a consideration of the following detailed description of one or more embodiments. Reference will be made to the appended sheets of drawings that will first be described briefly. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  illustrates a block diagram of a portion of a dynamic transportation matching system including a fleet vehicle in accordance with an embodiment of the disclosure. 
         FIG. 2  illustrates a block diagram of a dynamic transportation matching system incorporating a variety of transportation modalities in accordance with an embodiment of the disclosure. 
         FIGS. 3A-C  illustrate diagrams of micro-mobility fleet vehicles for use in a dynamic transportation matching system in accordance with embodiments of the disclosure. 
         FIGS. 4A and 4B  are perspective views of a micro-mobility vehicle in accordance with an embodiment of the disclosure. 
         FIGS. 5A and 5B  illustrate a battery compartment implementation that is integrated within a micro-mobility vehicle in accordance with an embodiment of the disclosure. 
         FIGS. 6A and 6B  illustrate different visual indicators implemented on a surface of the battery compartment in accordance with an embodiment of the disclosure. 
         FIG. 7  illustrates another visual indicator implemented on a surface of the battery compartment in accordance with an embodiment of the disclosure. 
         FIGS. 8A and 8B  illustrate another battery compartment implementation that is integrated within a micro-mobility vehicle in accordance with an embodiment of the disclosure. 
         FIGS. 9A and 9B  are perspective views of another micro-mobility vehicle in accordance with an embodiment of the disclosure. 
         FIGS. 10A and 10B  illustrate yet another battery compartment implementation that is integrated within a micro-mobility vehicle in accordance with an embodiment of the disclosure. 
         FIGS. 11A and 11B  illustrate yet another battery compartment implementation that is integrated within a micro-mobility vehicle in accordance with an embodiment of the disclosure. 
         FIGS. 12A and 12B  illustrate yet another battery compartment implementation that is integrated within a micro-mobility vehicle in accordance with an embodiment of the disclosure. 
         FIGS. 13A and 13B  illustrate an alternative mechanism for fitting a battery pack into a battery compartment in accordance with an embodiment of the disclosure. 
         FIGS. 14A and 14B  illustrate visual indicators implemented on a surface of the battery pack in accordance with an embodiment of the disclosure. 
         FIG. 15  illustrates a flow diagram of a process to replace a battery pack on a micro-mobility vehicle in accordance with an embodiment of the disclosure. 
         FIGS. 16A-16F  illustrate various basket assemblies that can be attached to a micro-mobility vehicle in accordance with various embodiments of the disclosure. 
         FIGS. 17A-19B  illustrate various package carrier assemblies that can be attached to a micro-mobility vehicle in accordance with various embodiments of the disclosure. 
         FIGS. 20A-20B  illustrate various child seat assemblies that can be attached to a micro-mobility vehicle in accordance with various embodiments of the disclosure. 
     
    
    
     Embodiments of the invention and their advantages are best understood by referring to the detailed description that follows. It should be appreciated that like reference numerals are used to identify like elements illustrated in one or more of the figures. 
     DETAILED DESCRIPTION 
     In accordance with various embodiments of the present disclosure, systems and methods provide a configurable electric micro-mobility vehicle that can be configured with modular accessories. A micro-mobility vehicle may be a single-user (or double-user) vehicle such as a bicycle or a scooter designed for traveling in short distances (e.g., less than 5 miles, less than 10 miles, etc.) relative to conventional shared vehicles, such as cars. The micro-mobility vehicle may include at least two wheels, an electric propulsion system (e.g., an electric motor) for mobilizing the micro-mobility vehicle (e.g., for mobilizing at least one of the wheels), a handle bar for steering the micro-mobility vehicle, and a frame that includes at least a head tube for supporting the handle bar, a seat tube for supporting a saddle (e.g., a seat), and a down tube that connects the head tube and the seat tube. 
     In some embodiments, the micro-mobility vehicle is configurable by including a structure that is adapted to receive and secure one or more of the modular accessories within a short amount of time (e.g., within 10 seconds, within a minute, etc.). Thus, a user (including the rider or a service technician or employee of the entity managing the micro-mobility vehicle) may configure (e.g., transform) the micro-mobility vehicle in different configurations quickly based on different needs. For example, in some embodiments, the micro-mobility vehicle may include a battery compartment for receiving a modular battery pack and securing the battery pack to an electrical connector of the micro-mobility vehicle. A wire or cable may connect the electrical connector to the electric propulsion system of the micro-mobility vehicle to transfer the electric power from the battery pack to the electric propulsion system. 
     In some embodiments, the battery compartment may be physically coupled to the seat tube for easy access. For example, the battery compartment may have a long dimension that runs substantially parallel (e.g., less than 10% deviation, etc.) to the length of the seat tube. The battery compartment may have an opening at a first end for inserting and removing a battery pack. As such, a battery pack may be inserted into the battery compartment by sliding the battery pack through the opening in the first end into the battery compartment in a direction that is substantially parallel to the length of the seat tube. Similarly, the battery pack may be removed from the battery compartment by sliding the battery pack through the opening in the first end out of the battery compartment in a direction that is substantially parallel to the length of the seat tube. In some embodiments, the opening is beneath the saddle. As such, in order to insert or remove a battery pack, an orientation of the saddle needs to be adjusted (e.g., tilting the saddle along an axis that is perpendicular to the frame of the micro-mobility vehicle). In some embodiments, the battery compartment is part of the seat tube. In other embodiments, the battery compartment is separate from the seat tube but is physically coupled to the seat tube (e.g., affixed to the seat tube, etc.). 
     In another example, the battery compartment extends out of the seat tube and is substantially perpendicular (e.g., within 10% deviation, within 20% deviation, etc.) to the seat tube. In some embodiments, the battery compartment may be substantially parallel (e.g., within 10% deviation) to the ground when the micro-mobility vehicle is in an operating orientation. The battery compartment may also have an opening at a first end of the battery compartment for inserting and/or removing a battery pack, while a second end of the battery compartment is physically coupled to the seat tube of the micro-mobility vehicle. The battery pack may be inserted into and/or removed from the battery compartment by sliding the battery pack through the opening in the first end in a direction substantially (e.g., within 10%) parallel to the length of the battery compartment. 
     In some embodiments, the battery compartment that extends out of the seat tube may be disposed below the saddle and above a wheel (e.g., the rear wheel) of the micro-mobility vehicle. In other embodiments, the battery compartment may be disposed at the bottom of the seat tube and may extend toward the rear wheel to mimic a chain box of the micro-mobility vehicle. 
     In some embodiments, the battery pack has one or more electrical connectors at one end of the battery pack. Once the battery pack is inserted into the battery compartment (with the end having the one or more electrical connectors entering into the battery compartment first), a mechanism (e.g., a lock) may secure the battery pack in place while the one or more electrical connectors of the battery pack is in contact with the electrical connector of the micro-mobility vehicle such that the one or more electrical connectors of the battery pack remains in contact with the electrical connector of the micro-mobility vehicle during operation of the micro-mobility vehicle. The lock may be configured such that it can be released by pressing on a button, using a key (electronic or physical), entering a code, or by pulling the battery pack using a force that exceeds a threshold. 
     In some embodiments, the battery pack and/or the battery compartment may be configured to provide an indicator (e.g., a visual indicator, an audio indicator, or a combination of the two) indicating a charge level of the battery pack. For example, the visual indicator may include a series of lights, where a number of lights in the series of lights may be lit to indicate a charge level of the battery pack. In such an example, a fully lit series of lights may indicate that the battery pack is above a charge level threshold (e.g., 95%, 98%, etc.), and a fully unlit series of lights may indicate that the battery pack is at a charge level below a threshold (e.g., 5%, 1%, etc.). In another example, the visual indicator may include a light bar, where a lit portion of the light bar represents a charge level of the battery pack (e.g., a fully lit light bar represents a charge level above a threshold such as 95%, a half lit light bar represents a charge level above another threshold such as 50%, etc.). The visual indicator may be triggered automatically (e.g., presented all the time, presented periodically such as every 5 seconds, etc.), or may be triggered in response to a signal or condition, such as when the charge level drops below or exceeds a certain threshold. In one embodiment, the battery pack and/or the battery compartment may have a button, that when pressed, triggers the visual indicator to indicate a charge level of the battery pack inside the battery compartment. 
     When the battery pack itself provides the visual indicator, the visual indicator may be disposed on an exterior surface of the battery pack that is visible to users when the battery pack is secured within the battery compartment. For example, when the battery pack is secured within the battery compartment, a portion of the battery pack may protrude from the battery compartment (e.g., through the opening). The visual indicator may be disposed on the exterior surface of that portion of the battery pack. Having a portion of the battery pack protruding from the battery compartment through the opening even when the battery pack is secured within the battery compartment is also useful to enable easy removal of the battery pack from the battery compartment. In some embodiments, the protruding portion may have a larger circumference than the remaining portion of the battery pack such that a user may easily grab the protruding portion of the battery pack to pull the battery pack out of the battery compartment. In such embodiments, a locking mechanism may be employed to prevent the battery pack from being stolen or possibly falling out. An example of suitable locking mechanism may include a physical engagement that enables the battery pack to slide in, but not out, unless a key or other unlocking mechanism is used to disengage the physical engagement. Other types are also contemplated in which a component can be secured through an open end of a component once inserted. 
     The indicator enables users (e.g., riders of the micro-mobility vehicle, maintenance workers of the micro-mobility vehicle, etc.) to quickly determine a charge level of the battery pack connected to the micro-mobility vehicle, such that they can determine whether there is a need to replace and/or charge the battery pack for the micro-mobility vehicle. For example, a user who desires to hire the micro-mobility vehicle may quickly determine the charge level of the battery pack connected to the micro-mobility vehicle based on the visual and/or audio indicator. The user may then decide whether the micro-mobility vehicle has sufficient charge to transport the user to the intended destination. The user may proceed to replace or charge the battery pack when it is determined that the charge level is lower than desired. 
     In another example, the micro-mobility vehicle may belong to a fleet of similar micro-mobility vehicles. Batches of the micro-mobility vehicles may be located at different stations within a geographical area. The fleet of micro-mobility vehicles may be communicatively coupled with each other and with a server via a network (e.g., a mesh network, a wide area network, a cellular network, etc.). When the charge level of the battery pack of a micro-mobility vehicle is below a threshold (e.g., 10%, 5%, etc.), the micro-mobility vehicle may be configured to transmit a signal to the server. The threshold may depend on the intended use or duration of use of the micro-mobility vehicle. For example, if the intended use from point A to point B includes steep inclines, the threshold may be higher such that the user does not run out of power during the ride, or if the intended use is a short strip from point C to point D that is mostly flat and downhill, the threshold may be lower. The signal may include a current location of the micro-mobility vehicle and/or an identifier of the micro-mobility vehicle. The server may dispatch a maintenance worker to service the micro-mobility vehicle based on the low charge level signal. Since the micro-mobility vehicles may be located at a station along with other similar micro-mobility vehicles, the maintenance worker may use the visual indicator and/or the audio indicator to determine which of the micro-mobility vehicles have low battery charge levels, and may proceed to charge and/or replace the batteries for the micro-mobility vehicles that have low battery charge levels. 
     In addition to the visual indicator for indicating a charge level of the battery pack, the battery pack and/or the battery compartment may also provide additional lighting (e.g., a light strip, a light bulb, etc.) to improve safety while riding at night. 
     In some embodiments, the battery compartment may be configured to receive and secure battery packs having different sizes (corresponding to different power capacity and/or efficiency). For example, the battery compartment may be configured to secure battery packs having different lengths. A longer battery pack may have a larger portion of the battery pack protruding from the opening of the battery compartment where a shorter battery pack may have a smaller portion of the battery pack protruding from the opening of the battery compartment. Having a battery compartment that can secure battery packs of different sizes enables the micro-mobility vehicle to be configured with different power capacity by simply changing the battery packs without modifying any structural elements of the micro-mobility vehicle. For example, a smaller (e.g., lighter weight) battery pack may be connected to the micro-mobility vehicle by default, as the lighter weight, smaller battery pack provides quicker ride and is more power efficient. However, when a rider desires to use the micro-mobility vehicle for a longer distance ride or a ride the requires more power (e.g., inclines, lots of stops and starts such as in a congested area), a user (e.g., the rider, a maintenance worker, etc.) can easily transform the micro-mobility vehicle to have greater power capacity by swapping the smaller battery pack with a larger battery pack. The user may remove the smaller battery pack by sliding the battery pack out of the battery compartment through the opening (in a direction substantially parallel to the length of the battery compartment) and by inserting the larger battery pack by sliding the battery pack into the battery compartment through the opening (in a direction substantially parallel to the length of the battery compartment). 
     In addition to the battery packs, other modular accessories may also be provided to transform a micro-mobility vehicle to different configurations. For example, one or more package hauling assemblies, such as a basket, a ricksaw assembly, a saddlebag frame, and the like may be added to the micro-mobility vehicle to transform the micro-mobility vehicle into a package carrier micro-mobility vehicle. In another example, a baby seat assembly may be added to the micro-mobility vehicle to transform the micro-mobility vehicle into a baby carrying micro-mobility vehicle. 
       FIG. 1  illustrates a block diagram of a portion of a dynamic transportation matching system (e.g., system  100 ) including a fleet vehicle  110  in accordance with an embodiment of the disclosure. In the embodiment shown in  FIG. 1 , system  100  includes fleet vehicle  110  and optional user device  130 . In general, fleet vehicle  110  may be a passenger vehicle designed to transport a single user (e.g., a micro-mobility fleet vehicle) or a group of people (e.g., a typical car or truck). More specifically, fleet vehicle  110  may be implemented as a motorized or electric kick scooter, bicycle, and/or motor scooter designed to transport one or perhaps two people at once typically on a paved road (collectively, micro-mobility fleet vehicles), as a typical automobile configured to transport up to 4, 7, or 10 people at once, or according to a variety of different transportation modalities (e.g., transportation mechanisms). Fleet vehicles similar to fleet vehicle  110  may be owned, managed, and/or serviced primarily by a fleet manager/servicer providing fleet vehicle  110  for rental and use by the public as one or more types of transportation modalities offered by a dynamic transportation matching system, for example, or may be owned, managed, and/or serviced by a private owner using the dynamic transportation matching system to match their vehicle to a transportation request, such as with ridesharing or ridesourcing applications typically executed on a mobile user device, such as user device  130  as described herein. Optional user device  130  may be a smartphone, tablet, near field communication (NFC) or radio-frequency identification (RFID) enabled smart card, or other personal or portable computing and/or communication device that may be used to facilitate rental and/or operation of fleet vehicle  110 . 
     As shown in  FIG. 1 , fleet vehicle  110  may include one or more of a controller  112 , a user interface  113 , an orientation sensor  114 , a gyroscope/accelerometer  116 , a global navigation satellite system receiver (GNSS)  118 , a wireless communications module  120 , a camera  148 , a propulsion system  122 , an air quality sensor  150 , and other modules  126 . Operation of fleet vehicle  110  may be substantially manual, autonomous, and/or partially or completely controlled by optional user device  130 , which may include one or more of a user interface  132 , a wireless communications module  134 , a camera  138 , and other modules  136 . In other embodiments, fleet vehicle  110  may include any one or more of the elements of user device  130 . In some embodiments, one or more of the elements of system  100  may be implemented in a combined housing or structure that can be coupled to or within fleet vehicle  110  and/or held or carried by a user of system  100 . 
     Controller  112  may be implemented as any appropriate logic device (e.g., processing device, microcontroller, processor, application specific integrated circuit (ASIC), field programmable gate array (FPGA), memory storage device, memory reader, or other device or combinations of devices) that may be adapted to execute, store, and/or receive appropriate instructions, such as software instructions implementing a control loop for controlling various operations of fleet vehicle  110  and/or other elements of system  100 , for example. Such software instructions may also implement methods for processing images and/or other sensor signals or data, determining sensor information, providing user feedback (e.g., through user interface  113  or  132 ), querying devices for operational parameters, selecting operational parameters for devices, or performing any of the various operations described herein (e.g., operations performed by logic devices of various devices of system  100 ). 
     In addition, a non-transitory medium may be provided for storing machine readable instructions for loading into and execution by controller  112 . In these and other embodiments, controller  112  may be implemented with other components where appropriate, such as volatile memory, non-volatile memory, one or more interfaces, and/or various analog and/or digital components for interfacing with devices of system  100 . For example, controller  112  may be adapted to store sensor signals, sensor information, parameters for coordinate frame transformations, calibration parameters, sets of calibration points, and/or other operational parameters, over time, for example, and provide such stored data to a user via user interface  113  or  132 . In some embodiments, controller  112  may be integrated with one or more other elements of fleet vehicle  110 , for example, or distributed as multiple logic devices within fleet vehicle  110  and/or user device  130 . 
     In some embodiments, controller  112  may be configured to substantially continuously monitor and/or store the status of and/or sensor data provided by one or more elements of fleet vehicle  110  and/or user device  130 , such as the position and/or orientation of fleet vehicle  110  and/or user device  130 , for example, and the status of a communication link established between fleet vehicle  110  and/or user device  130 . Such communication links may be established and then provide for transmission of data between elements of system  100  substantially continuously throughout operation of system  100 , where such data includes various types of sensor data, control parameters, and/or other data. 
     User interface  113  of fleet vehicle  110  may be implemented as one or more of a display, a touch screen, a keyboard, a mouse, a joystick, a knob, a steering wheel, a yoke, and/or any other device capable of accepting user input and/or providing feedback to a user. In various embodiments, user interface  113  may be adapted to provide user input (e.g., as a type of signal and/or sensor information transmitted by wireless communications module  134  of user device  130 ) to other devices of system  100 , such as controller  112 . User interface  113  may also be implemented with one or more logic devices (e.g., similar to controller  112 ) that may be adapted to store and/or execute instructions, such as software instructions, implementing any of the various processes and/or methods described herein. For example, user interface  132  may be adapted to form communication links, transmit and/or receive communications (e.g., infrared images and/or other sensor signals, control signals, sensor information, user input, and/or other information), for example, or to perform various other processes and/or methods described herein. 
     In one embodiment, user interface  113  may be adapted to display a time series of various sensor information and/or other parameters as part of or overlaid on a graph or map, which may be referenced to a position and/or orientation of fleet vehicle  110  and/or other elements of system  100 . For example, user interface  113  may be adapted to display a time series of positions, headings, and/or orientations of fleet vehicle  110  and/or other elements of system  100  overlaid on a geographical map, which may include one or more graphs indicating a corresponding time series of actuator control signals, sensor information, and/or other sensor and/or control signals. In some embodiments, user interface  113  may be adapted to accept user input including a user-defined target heading, waypoint, route, and/or orientation, for example, and to generate control signals to cause fleet vehicle  110  to move according to the target heading, route, and/or orientation. In other embodiments, user interface  113  may be adapted to accept user input modifying a control loop parameter of controller  112 , for example. 
     Orientation sensor  114  may be implemented as one or more of a compass, float, accelerometer, and/or other device capable of measuring an orientation of fleet vehicle  110  (e.g., magnitude and direction of roll, pitch, and/or yaw, relative to one or more reference orientations such as gravity and/or Magnetic North), camera  148 , and/or other elements of system  100 , and providing such measurements as sensor signals and/or data that may be communicated to various devices of system  100 . Gyroscope/accelerometer  116  may be implemented as one or more electronic sextants, semiconductor devices, integrated chips, accelerometer sensors, accelerometer sensor systems, or other devices capable of measuring angular velocities/accelerations and/or linear accelerations (e.g., direction and magnitude) of fleet vehicle  110  and/or other elements of system  100  and providing such measurements as sensor signals and/or data that may be communicated to other devices of system  100  (e.g., user interface  132 , controller  112 ). 
     GNSS receiver  118  may be implemented according to any global navigation satellite system, including a GPS, GLONASS, and/or Galileo based receiver and/or other device capable of determining absolute and/or relative position of fleet vehicle  110  (e.g., or an element of fleet vehicle  110 ) based on wireless signals received from space-born and/or terrestrial sources (e.g., eLoran, and/or other at least partially terrestrial systems), for example, and capable of providing such measurements as sensor signals and/or data (e.g., coordinates) that may be communicated to various devices of system  100 . In some embodiments, GNSS  118  may include an altimeter, for example, or may be used to provide an absolute altitude. 
     Wireless communications module  120  may be implemented as any wireless communications module configured to transmit and receive analog and/or digital signals between elements of system  100 . For example, wireless communications module  120  may be configured to receive control signals and/or data from user device  130  and provide them to controller  112  and/or propulsion system  122 . In other embodiments, wireless communications module  120  may be configured to receive images and/or other sensor information (e.g., still images or video images) and relay the sensor data to controller  112  and/or user device  130 . In some embodiments, wireless communications module  120  may be configured to support spread spectrum transmissions, for example, and/or multiple simultaneous communications channels between elements of system  100 . Wireless communication links formed by wireless communications module  120  may include one or more analog and/or digital radio communication links, such as WiFi, Bluetooth, NFC, RFID, and others, as described herein, and may be direct communication links established between elements of system  100 , for example, or may be relayed through one or more wireless relay stations configured to receive and retransmit wireless communications. In various embodiments, wireless communications module  120  may be configured to support wireless mesh networking, as described herein. 
     In some embodiments, wireless communications module  120  may be configured to be physically coupled to fleet vehicle  110  and to monitor the status of a communication link established between fleet vehicle  110  and/or user device  130 . Such status information may be provided to controller  112 , for example, or transmitted to other elements of system  100  for monitoring, storage, or further processing, as described herein. In addition, wireless communications module  120  may be configured to determine a range to another device, such as based on time of flight, and provide such range to the other device and/or controller  112 . Communication links established by communication module  120  may be configured to transmit data between elements of system  100  substantially continuously throughout operation of system  100 , where such data includes various types of sensor data, control parameters, and/or other data, as described herein. 
     Propulsion system  122  may be implemented as one or more motor-based propulsion systems, and/or other types of propulsion systems that can be used to provide motive force to fleet vehicle  110  and/or to steer fleet vehicle  110 . In some embodiments, propulsion system  122  may include elements that can be controlled (e.g., by controller  112  and/or user interface  113 ) to provide motion for fleet vehicle  110  and to provide an orientation for fleet vehicle  110 . In various embodiments, propulsion system  122  may be implemented with a portable power supply, such as a battery and/or a combustion engine/generator and fuel supply. 
     For example, in some embodiments, such as when propulsion system  122  is implemented by an electric motor (e.g., as with many micro-mobility fleet vehicles), fleet vehicle  110  may include battery  124 . Battery  124  may be implemented by one or more battery cells (e.g., lithium ion battery cells) and be configured to provide electrical power to propulsion system  122  to propel fleet vehicle  110 , for example, as well as to various other elements of system  100 , including controller  112 , user interface  113 , and/or wireless communications module  120 . In some embodiments, battery  123  may be implemented with its own safety measures, such as thermal interlocks and a fire-resistant enclosure, for example, and may include one or more logic devices, sensors, and/or a display to monitor and provide visual feedback of a charge status of battery  124  (e.g., a charge percentage, a low charge indicator, etc.). 
     Other modules  126  may include other and/or additional sensors, actuators, communications modules/nodes, and/or user interface devices, for example, and may be used to provide additional environmental information related to operation of fleet vehicle  110 , for example. In some embodiments, other modules  126  may include a humidity sensor, a wind and/or water temperature sensor, a barometer, an altimeter, a radar system, a proximity sensor, a visible spectrum camera or infrared camera (with an additional mount), and/or other environmental sensors providing measurements and/or other sensor signals that can be displayed to a user and/or used by other devices of system  100  (e.g., controller  112 ) to provide operational control of fleet vehicle  110  and/or system  100 . In further embodiments, other modules  126  may include a light, such as a headlight or indicator light, and/or an audible alarm, both of which may be activated to alert passersby to possible theft, abandonment, and/or other critical statuses of fleet vehicle  110 . In particular, and as shown in  FIG. 1 , other modules  126  may include camera  148  and/or air quality sensor  150 . 
     Camera  148  may be implemented as an imaging device including an imaging module including an array of detector elements that can be arranged in a focal plane array. In various embodiments, camera  148  may include one or more logic devices (e.g., similar to controller  112 ) that can be configured to process imagery captured by detector elements of camera  148  before providing the imagery to communications module  120 . More generally, camera  148  may be configured to perform any of the operations or methods described herein, at least in part, or in combination with controller  112  and/or user interface  113  or  132 . 
     In various embodiments, air quality sensor  150  may be implemented as an air sampling sensor configured to determine an air quality of an environment about fleet vehicle  110  and provide corresponding air quality sensor data. Air quality sensor data provided by air quality sensor  150  may include particulate count, methane content, ozone content, and/or other air quality sensor data associated with common street level sensitivities and/or health monitoring typical when in a street level environment, such as that experienced when riding on a typical micro-mobility fleet vehicle, as described herein. 
     Fleet vehicles implemented as micro mobility fleet vehicles may include a variety of additional features designed to facilitate fleet management and user and environmental safety. For example, as shown in  FIG. 1 , fleet vehicle  110  may include one or more of docking mechanism  140 , operator safety measures  142 , vehicle security device  144 , and/or user storage  146 , as described in more detail herein by reference to  FIGS. 3A-C . 
     User interface  132  of user device  130  may be implemented as one or more of a display, a touch screen, a keyboard, a mouse, a joystick, a knob, a steering wheel, a yoke, and/or any other device capable of accepting user input and/or providing feedback to a user. In various embodiments, user interface  132  may be adapted to provide user input (e.g., as a type of signal and/or sensor information transmitted by wireless communications module  134  of user device  130 ) to other devices of system  100 , such as controller  112 . User interface  132  may also be implemented with one or more logic devices (e.g., similar to controller  112 ) that may be adapted to store and/or execute instructions, such as software instructions, implementing any of the various processes and/or methods described herein. For example, user interface  132  may be adapted to form communication links, transmit and/or receive communications (e.g., infrared images and/or other sensor signals, control signals, sensor information, user input, and/or other information), for example, or to perform various other processes and/or methods described herein. 
     In one embodiment, user interface  132  may be adapted to display a time series of various sensor information and/or other parameters as part of or overlaid on a graph or map, which may be referenced to a position and/or orientation of fleet vehicle  110  and/or other elements of system  100 . For example, user interface  132  may be adapted to display a time series of positions, headings, and/or orientations of fleet vehicle  110  and/or other elements of system  100  overlaid on a geographical map, which may include one or more graphs indicating a corresponding time series of actuator control signals, sensor information, and/or other sensor and/or control signals. In some embodiments, user interface  132  may be adapted to accept user input including a user-defined target heading, waypoint, route, and/or orientation, for example, and to generate control signals to cause fleet vehicle  110  to move according to the target heading, route, and/or orientation. In other embodiments, user interface  132  may be adapted to accept user input modifying a control loop parameter of controller  112 , for example. 
     Wireless communications module  134  may be implemented as any wireless communications module configured to transmit and receive analog and/or digital signals between elements of system  100 . For example, wireless communications module  134  may be configured to transmit control signals from user interface  132  to wireless communications module  120  or  144 . In some embodiments, wireless communications module  134  may be configured to support spread spectrum transmissions, for example, and/or multiple simultaneous communications channels between elements of system  100 . In various embodiments, wireless communications module  134  may be configured to monitor the status of a communication link established between user device  130  and/or fleet vehicle  110  (e.g., including packet loss of transmitted and received data between elements of system  100 , such as with digital communication links), and/or determine a range to another device, as described herein. Such status information may be provided to user interface  132 , for example, or transmitted to other elements of system  100  for monitoring, storage, or further processing, as described herein. In various embodiments, wireless communications module  134  may be configured to support wireless mesh networking, as described herein. 
     Other modules  136  of user device  130  may include other and/or additional sensors, actuators, communications modules/nodes, and/or user interface devices used to provide additional environmental information associated with user device  130 , for example. In some embodiments, other modules  136  may include a humidity sensor, a wind and/or water temperature sensor, a barometer, a radar system, a visible spectrum camera, an infrared camera, a GNSS receiver, and/or other environmental sensors providing measurements and/or other sensor signals that can be displayed to a user and/or used by other devices of system  100  (e.g., controller  112 ) to provide operational control of fleet vehicle  110  and/or system  100  or to process sensor data to compensate for environmental conditions. As shown in  FIG. 1 , other modules  136  may include camera  138 . 
     Camera  138  may be implemented as an imaging device including an imaging module including an array of detector elements that can be arranged in a focal plane array. In various embodiments, camera  138  may include one or more logic devices (e.g., similar to controller  112 ) that can be configured to process imagery captured by detector elements of camera  138  before providing the imagery to communications module  120 . More generally, camera  138  may be configured to perform any of the operations or methods described herein, at least in part, or in combination with controller  138  and/or user interface  113  or  132 . 
     In general, each of the elements of system  100  may be implemented with any appropriate logic device (e.g., processing device, microcontroller, processor, application specific integrated circuit (ASIC), field programmable gate array (FPGA), memory storage device, memory reader, or other device or combinations of devices) that may be adapted to execute, store, and/or receive appropriate instructions, such as software instructions implementing a method for providing sensor data and/or imagery, for example, or for transmitting and/or receiving communications, such as sensor signals, sensor information, and/or control signals, between one or more devices of system  100 . 
     In addition, one or more non-transitory mediums may be provided for storing machine readable instructions for loading into and execution by any logic device implemented with one or more of the devices of system  100 . In these and other embodiments, the logic devices may be implemented with other components where appropriate, such as volatile memory, non-volatile memory, and/or one or more interfaces (e.g., inter-integrated circuit (I2C) interfaces, mobile industry processor interfaces (MIPI), joint test action group (JTAG) interfaces (e.g., IEEE 1149.1 standard test access port and boundary-scan architecture), and/or other interfaces, such as an interface for one or more antennas, or an interface for a particular type of sensor). 
     Sensor signals, control signals, and other signals may be communicated among elements of system  100  and/or elements of other systems similar to system  100  using a variety of wired and/or wireless communication techniques, including voltage signaling, Ethernet, WiFi, Bluetooth, Zigbee, Xbee, Micronet, Near-field Communication (NFC) or other medium and/or short range wired and/or wireless networking protocols and/or implementations, for example. In such embodiments, each element of system  100  may include one or more modules supporting wired, wireless, and/or a combination of wired and wireless communication techniques, including wireless mesh networking techniques. In some embodiments, various elements or portions of elements of system  100  may be integrated with each other, for example, or may be integrated onto a single printed circuit board (PCB) to reduce system complexity, manufacturing costs, power requirements, coordinate frame errors, and/or timing errors between the various sensor measurements. 
     Each element of system  100  may include one or more batteries, capacitors, or other electrical power storage devices, for example, and may include one or more solar cell modules or other electrical power generating devices. In some embodiments, one or more of the devices may be powered by a power source for fleet vehicle  110 , using one or more power leads. Such power leads may also be used to support one or more communication techniques between elements of system  100 . 
       FIG. 2  illustrates a block diagram of dynamic transportation matching system  200  incorporating a variety of transportation modalities in accordance with an embodiment of the disclosure. For example, as shown in  FIG. 2 , dynamic transportation matching system  200  may include multiple embodiments of system  100 . In the embodiment shown in  FIG. 2 , dynamic transportation matching system  200  includes management system/server  240  in communication with a number of fleet vehicles  110   a - d  and user devices  130   a - b  over a combination of a typical wide area network (WAN)  250 , WAN communication links  252  (solid lines), a variety of mesh network communication links  254  (curved dashed lines), and NFC, RFID, and/or other local communication links  256  (curved solid lines). Dynamic transportation matching system  200  also includes public transportation status system  242  in communication with a variety of public transportation vehicles, including one or more buses  210   a , trains  210   b , and/or other public transportation modalities, such as ships, ferries, light rail, subways, streetcars, trolleys, cable cars, monorails, tramways, and aircraft. As shown in  FIG. 2 , all fleet vehicles are able to communicate directly to WAN  250  and, in some embodiments, may be able to communicate across mesh network communication links  254 , to convey fleet data and/or fleet status data amongst themselves and/or to and from management system  240 . 
     In  FIG. 2 , a requestor may use user device  130   a  to hire or rent one of fleet vehicles  110   a - d  by transmitting a transportation request to management system  240  over WAN  250 , allowing management system  240  to poll status of fleet vehicles  110   a - d  (e.g., a hire status, a battery charge level status, etc.) and to select one of fleet vehicles  110   a - d  to fulfill the transportation request; receiving a fulfillment notice from management system  240  and/or from the selected fleet vehicle, and receiving navigation instructions to proceed to or otherwise meet with the selected fleet vehicle. A similar process may be used by a requestor using user device  130   b , but where the requestor is able to enable a fleet vehicle over local communication link  263 , as shown. 
     In some embodiments, each of the fleet vehicles  110   a - d  may be configured to determine a charge level of a battery connected to the fleet vehicle (e.g., using the sensor of the battery  124 ), and to transmit a signal to the management system  240  via the mesh network  260  and/or the WAN  250  to indicate the charge level of the battery or to indicate that the charge level is below a threshold (e.g., 20%, 10%, etc.). In some embodiments, each of the fleet vehicles  110   a - d  may be configured to also include an identifier of the fleet vehicle (e.g., a vehicle number, a serial number, etc.) and the geographical location of the fleet vehicle (e.g., the sensor information from the GNSS  118 ) in the signal. When the management system  240  receives the signal, the management system  240  may dispatch a user (e.g., a maintenance worker, etc.) to the location indicated in the signal to service the fleet vehicle. The location (e.g., a rental station, etc.) may include multiple fleet vehicles. As such, upon arriving at the location, the user may determine which of the fleet vehicles have low battery charge levels based on a visual indicator and/or an audio indicator presented on the battery packs or the battery compartments of the fleet vehicles, and may proceed to charge and/or replace the battery packs of the fleet vehicles having low battery charge levels. 
     Management system  240  may be implemented as a server with controllers, user interfaces, communications modules, and/or other elements similar to those described with respect to system  100  of  FIG. 1 , but with sufficient processing and storage resources to manage operation of dynamic transportation matching system  200 , including monitoring statuses (e.g., hire statuses, battery charge level statuses, etc.) of fleet vehicles  110   a - d , as described herein. In some embodiments, management system  240  may be implemented in a distributed fashion and include multiple separate server embodiments linked communicatively to each other direction and/or through WAN  250 . WAN  250  may include one or more of the Internet, a cellular network, and/or other wired or wireless WANs. WAN communication links  252  may be wired or wireless WAN communication links, and mesh network communication links  254  may be wireless communication links between and among fleet vehicles  110   a - d , as described herein. 
     User device  130   a  in  FIG. 2  includes a display of user interface  132  that shows a planned route for a user attempting to travel from origination point  260  to destination  272  using different transportation modalities (e.g., a planned multimodal route), as depicted in route/street map  286  rendered by user interface  132 . For example, management system  240  may be configured to monitor statuses of all available transportation modalities (e.g., including fleet vehicles and public transportation vehicles) and provide a planned multimodal route from origination point  260  to destination  272 . Such planned multimodal route may include, for example, walking route  262  from origination point  260  to bus stop  264 , bus route  266  from bus stop  264  to bus stop  268 , and micro-mobility route  270  (e.g., using one of micro-mobility fleet vehicles  110   b ,  110   c , or  110   d ) from bus stop  268  to destination  272 . Also shown rendered by user interface  132  are present location indicator  280  (indicating a present absolute position of user device  130   a  on street map  486 ), navigation destination selector/indicator  282  (e.g., configured to allow a user to input a desired navigation destination), and notice window  284  (e.g., used to render fleet status data, including user notices and/or alerts, as described herein). For example, a user may use navigation destination selector/indicator  282  to provide and/or change destination  272 , as well as change any leg or modality of the multimodal route from origination point  260  to destination  272 . In some embodiments, notice window  284  may display instructions for traveling to a next waypoint along the determined multimodal route (e.g., directions to walk to a bus stop, directions to ride a micro-mobility fleet vehicle to a next stop along the route, etc.). 
     In various embodiments, management system  240  may be configured to provide or suggest an optimal multimodal route to a user (e.g., initially and/or while traversing a particular planned route), and a user may select or make changes to such route through manipulation of user device  130   a , as shown. For example, management system  240  may be configured to suggest a quickest route, a least expensive route, a most convenient route (to minimize modality changes or physical actions a user must take along the route), an inclement weather route (e.g., that keeps the user protected from inclement weather a maximum amount of time during route traversal), or some combination of those that is determined as best suited to the user, such as based on various user preferences. Such preferences may be based on prior use of system  200 , prior user trips, a desired arrival time and/or departure time (e.g., based on user input or obtained through a user calendar or other data source), or specifically input or set by a user for the specific route, for example, or in general. In one example, origination point  260  may be extremely congested or otherwise hard to access by a ride-share fleet vehicle, which could prevent or significantly increase a wait time for the user and a total trip time to arrive at destination  272 . In such circumstances, a planned multimodal route may include directing the user to walk and/or take a scooter/bike to an intermediate and less congested location to meet a reserved ride-share vehicle, which would allow the user to arrive at destination  272  quicker than if the ride-share vehicle was forced to meet the user at origination point  260 . It will be appreciated that numerous different transportation-relevant conditions may exist or dynamically appear or disappear along a planned route that may make it beneficial to use different modes of transportation to arrive at destination  272  efficiently, including changes in traffic congestion and/or other transportation-relevant conditions that occur mid-route, such as an accident along the planned route. Under such circumstances, management system  240  may be configured to adjust a modality or portion of the planned route dynamically in order to avoid or otherwise compensate for the changed conditions while the route is being traversed. 
       FIGS. 3A-C  illustrate diagrams of micro-mobility fleet vehicles  110   b ,  110   c , and  110   d , which may be integrated with mobile mesh network provisioning systems in accordance with an embodiment of the disclosure. For example, fleet vehicle  110   b  of  FIG. 3A  may correspond to a motorized bicycle for hire that is integrated with the various elements of system  100  and may be configured to participate in dynamic transportation matching system  200  of  FIG. 2 . As shown, fleet vehicle  110   b  includes controller/user interface/wireless communications module  112 / 113 / 120  (e.g., integrated with a rear fender of fleet vehicle  110   b ), propulsion system  122  configured to provide motive power to at least one of the wheels (e.g., a rear wheel  322 ) of fleet vehicle  110   b , battery  124  for powering propulsion system  122  and/or other elements of fleet vehicle  110   b , docking mechanism  140  (e.g., a spade lock assembly) for docking fleet vehicle  110   b  at a docking station, user storage  146  implemented as a handlebar basket, and vehicle security device (e.g., an embodiment of vehicle security device  144  of  FIG. 1 ), which may incorporate one or more of a locking cable  144   a , a pin  144   b  coupled to a free end of locking cable  144   a , a pin latch/insertion point  144   c , a frame mount  144   d , and a cable/pin holster  144   e , as shown (collectively, vehicle security device  144 ). In some embodiments, controller/user interface/wireless communications module  112 / 113 / 120  may alternatively be integrated on and/or within a handlebar enclosure  313 , as shown. 
     In some embodiments, vehicle security device  144  may be implemented as a wheel lock configured to immobilizing rear wheel  322  of fleet vehicle  110   b , such as by engaging pin  144   b  with spokes of rear wheel  322 . In the embodiment shown in  FIG. 3A , vehicle security device  144  may be implemented as a cable lock configured to engage with a pin latch on a docking station, for example, or to wrap around and/or through a secure pole, fence, or bicycle rack and engage with pin latch  144   c . In various embodiments, vehicle security device  144  may be configured to immobilize fleet vehicle  110   b  by default, thereby requiring a user to transmit a hire request to management system  240  (e.g., via user device  130 ) to hire fleet vehicle  110   b  before attempting to use fleet vehicle  110   b . The hire request may identify fleet vehicle  110   b  based on an identifier (e.g., a QR code, a barcode, a serial number, etc.) presented on fleet vehicle  110   b  (e.g., such as by user interface  113  on a rear fender of fleet vehicle  110   b ). Once the hire request is approved (e.g., payment is processed), management system  240  may transmit an unlock signal to fleet vehicle  110   b  (e.g., via network  250 ). Upon receiving the unlock signal, fleet vehicle  110   b  (e.g., controller  112  of fleet vehicle  110   b ) may release vehicle security device  144  and unlock rear wheel  322  of fleet vehicle  110   b.    
     Fleet vehicle  110   c  of  FIG. 3B  may correspond to a motorized sit-scooter for hire that is integrated with the various elements of system  100  and may be configured to participate in dynamic transportation matching system  200  of  FIG. 2 . As shown in  FIG. 3B , fleet vehicle  110   c  includes many of the same elements as those discussed with respect to fleet vehicle  110   b  of  FIG. 3A . For example, fleet vehicle  110   c  may include user interface  113 , propulsion system  122 , battery  124 , controller/wireless communications module/cockpit enclosure  112 / 120 / 312 , user storage  146  (e.g., implemented as a storage recess), and operator safety measures  142   a  and  142   b , which may be implemented as various types of headlights, programmable light strips, and/or reflective strips. 
     Fleet vehicle  110   d  of  FIG. 3C  may correspond to a motorized stand or kick scooter for hire that is integrated with the various elements of system  100  and may be configured to participate in dynamic transportation matching system  200  of  FIG. 2 . As shown in  FIG. 3C , fleet vehicle  110   d  includes many of the same elements as those discussed with respect to fleet vehicle  110   b  of  FIG. 3A . For example, fleet vehicle  110   d  may include user interface  113 , propulsion system  122 , battery  124 , controller/wireless communications module/cockpit enclosure  112 / 120 / 312 , and operator safety measures  140 , which may be implemented as various types programmable light strips and/or reflective strips, as shown. 
     As discussed herein, the micro-mobility vehicle  300  may be constructed to be easily configurable using modular accessories, such that the micro-mobility vehicle  300  can be re-configured quickly to serve different needs of the users.  FIGS. 4A and 4B  are perspective views of a micro-mobility vehicle  400  having a battery compartment for receiving modular battery packs. As shown in  FIG. 4A , the micro-mobility vehicle  400  is an electric bicycle having a frame comprising at least a seat tube  402  for supporting a saddle  412 , a head tube  404  for supporting a handle bar  416 , and a down tube  406  connecting the seat tube  402  and the head tube  404 . The micro-mobility vehicle  400  may also include a front wheel  408 , a rear wheel  410 , and a propulsion system  414  for mobilizing the micro-mobility vehicle  400  (e.g., motorizing the rear wheel  410 ). 
     In some embodiments, the micro-mobility vehicle  400  may also include a battery compartment  420  that is configured to receive and secure modular battery packs, such as a battery pack  422 . The battery compartment  420  may be disposed at a location of the micro-mobility vehicle  400  that allows different battery packs to be easily and quickly removed from and/or inserted into the battery compartment  420 . For example, the battery component  420  is placed or secured with enough space above the opening such that the saddle  412  (if not easily moved) does not prevent desired battery packs from being inserted, or if the opening protrudes past the saddle  412  or the saddle  412  can be moved or adjusted, the space above the opening may not need to be a consideration. In some embodiments, the battery compartment  420  may be physically connected to the seat tube  402 . In this example, the battery compartment  420  is affixed to a rear side of the seat tube  402  (e.g., the side that is farther away from the handle bar  416 ) and is substantially parallel (e.g., within a deviation threshold such as 5%, 10%, etc.) to the seat tube  402 .  FIG. 4B  illustrates a different perspective view of the micro-mobility vehicle  400  having a battery compartment  420  affixed to the seat tube  402 . 
     In some embodiments, the micro-mobility vehicle  400  may include an electrical connector  430  disposed at one end (e.g., the bottom end) of the battery compartment  420 . The electrical connector  430  may be configured to transfer electrical power from the battery pack  422  to the propulsion system  414 . Wiring may be provided to connect the electrical connector  430  to the propulsion system  414 . As such, the battery pack  422  may also include one or more electrical connectors at one end of the battery pack  422 . In some embodiments, the battery compartment  420  may enable the one or more electrical connectors of the battery pack  422  to come in contact with the electrical connector  430  of the micro-mobility vehicle  400  once the battery pack  422  is inserted into the battery compartment  420 , and may also secure the battery pack  422  in place within the battery compartment  420  when the one or more electrical connectors of the battery pack  422  is in contact with the electrical connector  430  of the micro-mobility vehicle  400 , such that the one or more electrical connectors of the battery pack  422  remains in contact with the electrical connector  430  of the micro-mobility vehicle  400  during operation of the micro-mobility vehicle. For example, the battery compartment  420  may provide a locking mechanism (e.g., a lock, etc.) to secure the battery pack  422  in place while the one or more electrical connectors of the battery pack  422  is in contact with the electrical connector  430  of the micro-mobility vehicle  400 . The lock may be configured such that it can be released by pressing on a button, using key (physical or electronic), or pulling the battery pack using a force that exceeds a threshold. 
       FIGS. 5A and 5B  illustrate a partial view of the micro-mobility vehicle  400  and the battery compartment  420 . As shown in  FIG. 5A , the battery compartment  420  is affixed to the rear side of the seat tube  402  underneath the saddle  412 . In some embodiments, the battery compartment  420  has an opening  502  at a top end of the battery compartment  420 , which allows a battery pack to be inserted into and/or removed from the battery compartment  420 . In some embodiments, since the opening  520  may be partially obstructed by the saddle  412 , the micro-mobility vehicle  400  may provide a mechanism to adjust an orientation of the saddle  412  (e.g., tiling or rotating the saddle  412 ) to access the opening of the battery compartment  420 .  FIG. 5B  illustrates the saddle  504  having its orientation adjusted for accessing the opening  502  of the battery compartment  420 . In this example, the saddle  412  has been tilted along the invisible axis  504 . After the orientation of the saddle  412  has been adjusted, a battery pack (e.g., the battery pack  422 ) may be inserted into the battery compartment  420  through the opening  502 . In some embodiments, to insert the battery pack  422  into the battery compartment  420 , the battery pack  422  may be slide through the opening  502  of the battery compartment  420  (with the end of the battery pack  422  having the one or more electrical connectors entering into the battery compartment  420  first) in a direction that is substantially parallel (e.g., within a threshold deviation such as 5%, 10%, etc.) to the length of the seat tube  402  or the length of the battery compartment  420  (as shown by the arrow  506 ). As discussed herein, once the battery pack  422  is fully inserted into the battery compartment  420 , a locking mechanism of the battery compartment  420  may secure (e.g., by using friction or using a lever, etc.) the battery pack  422  in place.  FIG. 5B  illustrates the battery pack  422  after the battery pack  422  is fully inserted into and secured within the battery compartment  420 . As shown, after the battery pack  422  is secured within the battery compartment  420 , a portion  508  of the battery pack  422  (which includes one end of the battery pack  422 ) may still be protruding out of the battery compartment  420  from the opening  502 . In other words, the portion  508  of the battery pack  422  is uncovered by the battery compartment  420  after the battery pack  422  is secured within the battery compartment  420 . Allowing the portion  508  to be exposed from the battery compartment  420  enables the battery pack  422  to be removed from the battery compartment  420  more easily. For example, a user may grab the portion  508  of the battery pack  422  and pull in a direction substantially parallel (e.g., within a threshold deviation such as 5%, 10%, etc.) to the length of the seat tube  402  or the battery compartment  420  (as shown by the arrow  510 ). 
     In some embodiments, the battery pack  422  and/or the battery compartment  420  may be configured to provide an indicator (e.g., a visual indicator, an audio indicator, etc.) indicating a charge level of the battery pack  422 .  FIGS. 6A and 6B  illustrates an example visual indicator that is implemented in the form of a light bar  602 . In  FIG. 6A , the light bar  602  is integrated within the battery compartment  420  (e.g., on the rear side exterior surface of the battery compartment  420 ). The light bar  602  may extend for a length along the rear side exterior surface of the battery compartment  420 . The battery compartment  420  may include a battery sensor that implements the battery sensor  128  configured to determine a charge level of a battery pack inside the battery compartment  420 . In some embodiments, the battery sensor may be integrated with or electrically coupled to the electrical connector  430 . The battery compartment  420  may be configured to then turn on (e.g., to power) at least a portion of the light bar  602  to indicate the determined charge level of the battery pack  422 . For example, the battery compartment  420  may′ be configured to turn on (e.g., to power) the entire length of the light bar  602  when the charge level of the battery pack  422  exceeds a first threshold (95%, 90%, etc.), to turn on (e.g., to power) half of the length of the light bar  602  when the charge level of the battery pack  422  exceeds a second threshold (50%, etc.), and to turn on (e.g., to power) only a small portion (e.g., 10%) of the length of the light bar  602  when the charge level of the battery pack is below a third threshold (e.g., 10%, 5%, etc.). The various threshold may depend on the intended use or duration of use of the micro-mobility vehicle  400 . For example, if the intended use from point A to point B includes steep inclines, the threshold may be higher such that the user does not run out of power during the ride. Conversely, if the intended use is a short strip from point C to point D that is mostly flat and downhill, the threshold may be lower. Other considerations include the weight of the user(s) and the weight of any package (such as grocery, backpack, etc.) the user(s) may have for the ride. The threshold may also depend on the type of battery pack  422  being used, e.g., a newer, more efficient battery pack may generally have a lower threshold, while an older, less efficient battery pack may generally have a higher threshold for the same type of use or trip. 
       FIG. 6B  illustrates another embodiment of the light bar  602  implemented on the battery compartment  420 . As shown, the light bar  602  is provided on a different exterior surface (or the entire circumference) of the battery compartment  420 . Similarly, the battery compartment  420  may be configured to turn on (e.g., to power) at least a portion of the light bar  602  to indicate a charge level of the battery pack  422 . 
       FIG. 7  illustrates another example visual indicator that is implemented in the form of a series of lights  702 . In such an embodiment, the battery compartment  420  may be configured to turn on (e.g., to power) at least a portion of the lights in the series of lights  702  to indicate a determined charge level of the battery pack  422 . For example, the battery compartment  420  may turn on (e.g., to power) the entire series of lights  702  when the charge level of the battery pack  422  is above a first threshold (e.g., 95%, 98%, etc.), turn on (e.g., power) half of the lights in the series of lights  702  when the charge level of the battery pack  422  is above a second threshold (e.g., 50%), and turn on (e.g., power) only one of the series of lights  702  when the charge level of the battery pack is below a third threshold (e.g., 5%, 1%, etc.). As discussed above, the threshold at which the lights turn on may vary on different factors. While the visual indicator is shown to be implemented on the battery compartment  420  in  FIGS. 6A-7 , the same visual indicator can be implemented on the battery pack  422 . For example, the light bar  602  and/or the series of lights  702  may be implemented on the protruding portion  508  of the battery pack  422  so that it is visible to users when the battery pack  422  is secured within the battery compartment  420 . 
     The visual indicator may be triggered automatically (e.g., presented all the time, presented periodically such as every 5 seconds, etc.), or may be triggered in response to a signal (initiated by the user or by the micro-mobility vehicle  400 ). For example, the battery pack and/or the battery compartment may have a button, that when pressed, would trigger the visual indicator to indicate a charge level of the battery pack inside the battery compartment. The indicator enables users (e.g., riders of the micro-mobility vehicle  400 , maintenance workers of the micro-mobility vehicle  400 , etc.) to quickly determine a charge level of the battery pack  422  connected to the micro-mobility vehicle  400 , such that they can determine whether there is a need to replace and/or charge the battery pack  422  for the micro-mobility vehicle  400 . For example, a user who desires to hire the micro-mobility vehicle  400  may quickly determine the charge level of the battery pack  422  connected to the micro-mobility vehicle  400  based on the visual and/or audio indicator. The user may then decide whether the micro-mobility vehicle  400  has sufficient charge to transport the user to the intended destination. The trigger may be initiated by the micro-mobility vehicle  400  as well, such as when a sensor detects a need for maintenance, such as the power level of the battery pack  422  dropping below a certain threshold (as discussed above) or other electrical, mechanical, or maintenance issue that requires attention, including a scheduled maintenance coming due soon (either based on distance traveled or time elapsed from last maintenance), a malfunction of the battery (such as conveyed through an error code), and the like. 
     In another example, the micro-mobility vehicle  400  may belong to a fleet of similar micro-mobility vehicles. Batches of the micro-mobility vehicles may be located at different stations within a geographical area. The fleet of micro-mobility vehicles may be communicatively coupled with each other and with the management system  240  via one or more networks (e.g., the mesh network  260 , the WAN  250 , etc.). When the charge level of the battery pack  422  of the micro-mobility vehicle  400  is below a threshold (e.g., 10%, 5%, etc.), the micro-mobility vehicle  400  may be configured to transmit a signal to the management system  240 . The signal may include a current location of the micro-mobility vehicle  400  (obtained from the GNSS  118 ) and an identifier associated with the micro-mobility vehicle  400 . The management system  240  may dispatch a maintenance worker to service the micro-mobility vehicle  400  based on the low charge level signal. Since multiple micro-mobility vehicles may be located at location indicated in the signal (e.g., a micro-mobility vehicle station), the maintenance worker may use the visual indicator and/or the audio indicator to determine which of the micro-mobility vehicles have low battery charge levels, and may proceed to charge and/or replace the battery for the micro-mobility vehicles that have low battery charge levels. 
     In addition to the visual indicator for indicating a charge level of the battery pack, the battery pack  422  and/or the battery compartment  420  may also provide additional lighting (e.g., a light strip, a light bulb, etc.) to improve safety while riding at night. 
       FIGS. 4A-5B  illustrate a battery compartment  420  that is distinct from, but affixed to, the seat tube  402 . In some embodiments, the battery compartment may be implemented differently. For example, the battery compartment may be incorporated into (as a part of) the seat tube of a micro-mobility vehicle according to some embodiments of the disclosure.  FIGS. 8A and 8B  illustrate an example implementation of the battery compartment that is incorporated into the seat tube. As shown in  FIG. 8A , a battery compartment  820  is part of the seat tube structure  402  (and is part of the frame of the micro-mobility vehicle  400 ). Furthermore, as shown in  FIG. 8A , the battery compartment  820  is implemented on the front side of the seat tube  402  (e.g., the side that is closer to the handle bar). Similar to the battery compartment  420 , the battery compartment  820  also includes an opening  802  for inserting and/or removing a battery pack. By implementing the battery compartment  820  on the front side of the seat tube  402 , the opening  802  may be at least partially obstructed by the saddle  412 . As such, the saddle  412  is constructed to enable an adjustment of its orientation. As shown in  FIG. 8B , the saddle  412  can be tilted along the invisible axis  804  to provide users access to the opening  802  of the battery compartment  820 , such that a battery pack, such as the battery pack  822  can be inserted into and/or removed from the battery compartment  820  by sliding the battery pack  822  through the opening  802  into and/or out of the battery compartment  820  in a direction that is parallel to the seat tube  402 . 
     Instead of aligning the battery compartment parallel to the seat tube, a battery compartment of some embodiments can be extended away from (out of) the seat tube.  FIGS. 9A and 9B  are perspective views of a micro-mobility vehicle  900  having a battery compartment that extends away from a seat tube. As shown in  FIG. 9A , the micro-mobility vehicle  900  is an electric bicycle similar to the micro-mobility vehicle  400 . The micro-mobility vehicle  900  has a frame comprising at least a seat tube  902  for supporting a saddle  912 , a head tube  904  for supporting a handle bar  916 , and a down tube  906  connecting the seat tube  902  and the head tube  904 . The micro-mobility vehicle  900  may also include a front wheel  908 , a rear wheel  910 , and a propulsion system  914  for mobilizing the micro-mobility vehicle  900  (e.g., motorizing the rear wheel  910 ). 
     Similar to the micro-mobility vehicle  400 , the micro-mobility vehicle  900 , also includes a battery compartment  920  that is physically connected to the seat tube  902  and for receiving a battery pack, such as battery pack  922 . However, unlike the micro-mobility vehicle  400 , the battery compartment  920  of the micro-mobility vehicle  900  is not parallel to the seat tube  902 , but rather, extends away from the seat tube  902 . In some embodiments, the battery compartment  920  extends away from the seat tube  902  in a rear facing direction of the micro-mobility vehicle  900  (e.g., extends away from the handle bar  916 ), such that a portion of the battery compartment  920  is on top of the rear wheel  910 . In some embodiments, the battery compartment  920  may be implemented to be substantially perpendicular (e.g., within a threshold deviation such as 5%, 10%, etc.) to the seat tube  902 . In other words, the battery compartment  920  may be implemented to be substantially parallel (e.g., within a threshold deviation such as 5%, 10%, etc.) of the ground with the micro-mobility vehicle  900  is in operating position and orientation (e.g., when the micro-mobility vehicle  900  is upright). 
     In some embodiments, the micro-mobility vehicle  900  may include an electrical connector  930 , for example, disposed a junction of the seat tube  902  and the battery compartment  920 , as shown in  FIG. 9B . The electrical connector  930  may be configured to transfer electrical power from the battery pack  922  to the propulsion system  914 . Wiring may be provided to connect the electrical connector  930  to the propulsion system  914 . 
     Similar to the battery compartment  420 , the battery compartment  920  may also include an opening for a battery pack to be inserted into and/or removed from the battery compartment  920 . As shown in  FIG. 10A , the battery compartment  920  may include an opening  932  at an end (the rear facing end) of the battery compartment  920 . The battery pack  922  may be inserted into the battery compartment  920  by sliding the battery pack  922  through the opening  932  into the battery compartment  920  in a direction that is substantially parallel (e.g., within a threshold deviation such as 5%, 10%, etc.) to the length of the battery compartment  920  (as shown by the arrow  1002 ). 
     As shown in  FIG. 10A , after the battery pack  922  is secured within the battery compartment  920 , a portion  1004  of the battery pack  922  (which includes one end of the battery pack  922 ) may still be protruding out of the battery compartment  920  from the opening  902 . In other words, the portion  1004  of the battery pack  922  is uncovered by the battery compartment  920  after the battery pack  922  is secured within the battery compartment  920 . Allowing the portion  1004  to be exposed from the battery compartment  920  enables the battery pack  922  to be removed from the battery compartment  420  more easily. For example, a user may grab the portion  1004  of the battery pack  922  and pull in a direction substantially parallel (e.g., within a threshold deviation such as 5%, 10%, etc.) to the length of the battery compartment  920  (as shown by the arrow  1006 ). Furthermore, an indicator (e.g., a visual indicator, etc.) for indicating a charge level of the battery pack  922  may be implemented on any exterior surface of the battery compartment  920  and/or the protruding portion  1004  of the battery pack  922  using techniques disclosed herein. In such embodiments described herein where at least a portion of the battery pack is exposed, e.g., extends past an opening of the battery compartment, a locking mechanism may be employed to prevent the battery pack from being stolen or possibly falling out. An example of suitable locking mechanism may include a physical engagement that enables the battery pack to slide in, but not out, unless a key or other unlocking mechanism is used to disengage the physical engagement. Other types are also contemplated in which a component can be secured through an open end of a component once inserted. A benefit of implementing the battery compartment in the manner shown in  FIGS. 9A-10B  is that additional modular accessories (e.g., a basket, a child seat, a ricksaw assembly, etc.) may be added to the micro-mobility vehicle  900  using the structure provided by the battery compartment  920 , which will be described in more details below. 
       FIGS. 11A and 11B  illustrate another implementation of battery compartments in a micro-mobility vehicle  1110 . As shown in  FIG. 11A , two battery compartments  1120   a  and  1120   b  are incorporated into the micro-mobility vehicle  1110 . The two battery compartments  1120   a  and  1120   b  are physically coupled to the seat tube  1102  (near the end of the down tube  1106 ) and extends away from the seat tube  1102 . Specifically, each of the battery compartments  1120   a  and  1120   b  is located on either side of the rear wheel  1110  and is configured to receive and secure battery packs  1122   a  and  1122   b , respectively, to the micro-mobility vehicle  1110 . In some embodiments, the battery compartments  1120   a  and  1120   b  mimics a shape and location of a chain box of a bicycle. Two electrical connectors  1130   a  and  1130   b  may be disposed on the two battery compartments  1120   a  and  1120   b , respectively for transferring electrical power from the battery packs  1122   a  and  1122   b  to the propulsion system  1114 . The battery packs  1122   a  and  1122   b  can be inserted into and/or removed from the battery compartment  1120   a  and  1120   b  by sliding the battery packs  1122   a  and  1122   b  through the openings (e.g., the opening  1132 ) of the battery compartments  1120   a  and  1120   b  in a direction that is substantially parallel (e.g., within a deviation threshold such as 5%, 10%, etc.) of the length of the battery compartment  1120   a  and  1120   b  (as shown by the arrow  1140 ). 
       FIGS. 12A and 12B  illustrates another implementation of a battery compartment  1220  within a micro-mobility vehicle  1200 . As shown in  FIG. 12A , the battery compartment  1220  is similar to the battery compartment  1120   a  or  1120   b , where the battery compartment  1220  is physically coupled to the seat tube  1202  and extends away from the seat tube  1202  to a side of a rear wheel  1210 . However, unlike the battery compartment  1120   a  or  1120   b , the battery compartment  1220  exposes a majority portion (e.g., more than half, more than 80%, etc.) of the battery pack  1222 .  FIG. 13A  illustrates the battery pack  1222  that is secured within the battery compartment  1220 . An electrical connector  1230  may be implemented at an end of the battery compartment  1220  that is closer to the propulsion system  1214  of the micro-mobility vehicle  1200 . 
     Furthermore, the battery pack  1222  may be inserted into and/or removed from the battery compartments  1220  by sliding the battery pack  1122  in a direction that is substantially perpendicular (e.g., within a deviation threshold such as 5%, 10%, etc.) to the length of the battery compartment  1220  (as shown by the arrow  1240  of  FIG. 13B ). While only one battery compartment is shown in the  FIGS. 12A and 12B , another battery compartment similar to the battery compartment  1220  may be implemented in the micro-mobility vehicle  1200  at a similar location as the battery compartment  1220  but on the opposite of the rear wheel  1210 . The benefit of having a majority portion of the battery pack  1222  exposed (e.g., visible to users when the battery pack  1222  is secured within the battery compartment  1220 ) is that a larger surface area of the battery pack  1222  may be used to implement the visual indicator. As shown in  FIG. 14A , a light bar  1402  is implemented on almost the entire exposed surface area of the battery pack  1222 , which may be used to provide an indication of a charge level of the battery pack  1222  or for safety during nighttime riding. Further, the light bar  1402  may be configured with different lighting arrangements to provide additional control of lighting based on needs. For example, if sensors detect (or the management system detects) an approaching vehicle within a certain distance or closing rate, the light bar  1402  may flash bright red lights at a high frequency. Thus, depending on detected conditions, the light bar  1402  may emit different types, intensities, colors, and frequencies of light. Instead of or in addition the light bar  1402 , reflective material may be used to increase safety and visibility issues. 
       FIG. 14B  illustrates light bars  1404  and  1406  implemented on the protruding portion of the battery packs  1122   a  and  1122   b , which can be used for providing an indication of a charge levels of the battery packs  1122   a  and  1122   b  or for safety during nighttime riding. 
       FIG. 15  illustrates a process  1500  for servicing a micro-mobility vehicle according to one embodiment of the disclosure. The process  1500  begins by determining (at step  1505 ) that a charge level of a first battery pack connected to a micro mobility vehicle is below a threshold based on an indicator. For example, a user who desires to hire a micro-mobility vehicle may use the dynamic transportation matching system  200  to find a matched micro-mobility vehicle. In some embodiments, based on a current location of the user, the dynamic transportation matching system  200  may locate a micro-mobility vehicle that is available for hire and is closest to the user. The dynamic transportation matching system  200  may also provide directions to the micro-mobility vehicle from the current location of the user. The location may be a micro-mobility vehicle station where one or more micro-mobility vehicles may be stored. When the user arrives at the location, the user may quickly determine the charge level of the battery pack connected to the micro-mobility vehicle based on the visual and/or audio indicator presented on the battery pack and/or the battery compartment of the micro-mobility vehicle. The user may determine that the battery pack needs to be replaced based on the indicator indicating that the charge level of the battery pack is below a threshold (e.g., 5%, 10%, etc.). 
     In another example, as the user is using the micro-mobility vehicle, the user may, from time to time, determines whether the battery pack of the micro-mobility vehicle still has sufficient charge (e.g., above a threshold) based on the indicator presented on the battery pack and/or the battery compartment. The user may then determine that the battery pack needs to be replaced based on the indicator indicating that the charge level of the battery pack is below a threshold (e.g., 5%, 10%, etc.). 
     In yet another example, the management system  240  may receive a signal from a micro-mobility vehicle indicating a low charge level of the battery. The signal may include a location of the micro-mobility vehicle. Thus, the management system  204  may dispatch a maintenance worker to service the micro-mobility vehicle. 
     The process  1500  then removes (at step  1510 ) the first battery pack by sliding the first battery pack out of a battery compartment of the electric bicycle and connects (at step  1515 ) a second battery pack into the battery compartment. For example, the user or the maintenance worker may slide the battery pack of the micro-mobility vehicle out of the battery compartment and slide a different battery pack into the battery compartment using the techniques described herein. 
     In some embodiments, the battery compartment (e.g., the battery compartments  420 ,  820 ,  920 ,  1120   a ,  1120   b , and  1220 ) may be configured to receive and secure different types of battery packs. For example, battery packs of different sizes may fit into the same battery compartment. In one non-limiting example, battery packs of different lengths may be inserted into the battery compartment to power the micro-mobility vehicle. A longer battery pack may have a larger portion of the battery pack protruding from the opening of the battery compartment where a shorter battery pack may have a smaller portion of the battery pack protruding from the opening of the battery compartment. Having a battery compartment that can secure battery packs of different sizes enables the micro-mobility vehicle to be configured with different power capacity by simply changing the battery packs without modifying any structural elements of the micro-mobility vehicle. For example, a smaller (e.g., lighter weight) battery pack may be connected to the micro-mobility vehicle by default, as the lighter weight, smaller battery pack provides a quicker ride and is more power efficient. However, when a rider desires to use the micro-mobility vehicle for a ride that requires more power (such as a longer distance ride, a ride with lots of hills, and/or a ride with lots of starts and stops), a user (e.g., the rider, a maintenance worker, etc.) can easily transform the micro-mobility vehicle to have greater power capacity by swapping the current battery pack with a more efficient or higher power capacity battery pack. The user may remove the current battery pack by sliding the battery pack out of the battery compartment through the opening (in a direction substantially parallel to the length of the battery compartment) and by inserting the replacement battery pack by sliding the battery pack into the battery compartment through the opening (in a direction substantially parallel to the length of the battery compartment). The opposite applies as well, where the current battery pack is a heavy battery pack, but the next ride is anticipated to be a short and/or mostly flat and downhill ride that can be finished from start to end with a lighter weight battery pack. 
     In addition to the battery packs, other modular accessories may also be provided to transform a micro-mobility vehicle to different configurations. For example, one or more package hauling assemblies, such as a basket, a ricksaw assembly, a saddlebag frame, and the may be added to the micro-mobility vehicle to transform the micro-mobility vehicle into a package carrier micro-mobility vehicle. In another example, a baby seat assembly may be added to the micro-mobility vehicle to transform the micro-mobility vehicle into a baby carrying micro-mobility vehicle. 
       FIGS. 16A-16F  illustrates different types of modular package carrier assembly (e.g., baskets) that can be added to a micro-mobility vehicle  1600  by attaching the package carrier assembly to the head tube  1604  of the micro-mobility vehicle  1600 . In particular,  FIG. 16C  illustrates a basket  1640  that may be made of a mix of rigid and soft elastic elements such that the basket  1640  is expandable.  FIG. 16D  illustrates the same basket  1640  in an expanded configuration.  FIG. 16E  illustrates a clear basket  1642  (that may be made of transparent or semi-transparent plastic materials) that can be used as a light diffuser. For example, a light source (e.g., a LED light) may be placed between the basket  1642  and the head tube  1604 . By providing a light source to the clear basket  1642 , the entire clear basket  1642  may be lit to provide a larger lit area, which improves safety during nighttime riding. Reflective coating or tape may also be used to increase visibility of the micro-mobility vehicle  1600  at night. 
       FIGS. 17A-19B  illustrate different package carrier assemblies that can be attached to the structure of a micro-mobility vehicle. In particular,  FIGS. 18A and 18B  illustrate the battery compartment structure  1820  (similar to the battery compartment  920 ) can be used to provide support for a saddlebag frame  1842 . The baskets illustrated in  FIGS. 16 a   - 16 F and the other package carrier assemblies illustrated in  FIGS. 17 a   - 19 B may be attached to the micro-mobility vehicle  1600  easily and within a short amount of time (e.g., within 10 seconds, within a minute, etc.), such as with molded parts that include a male component and a female component, molded “snap in” features, and quick release/engagement mechanisms. Thus, a user (e.g., a rider, a maintenance worker, etc.) may transform any micro-mobility vehicle into a specialized micro-mobility vehicle (e.g., a package hauling micro-mobility vehicle) quickly and easily. 
       FIGS. 20A-20C  illustrate various child seat assemblies added to a micro-mobility vehicle. In particular,  FIGS. 20B and 20C  illustrate the battery compartment structure  2020  (similar to the battery compartment  920 ) can be used to provide support for a child seat assembly  2042 . 
     Where applicable, various embodiments provided by the present disclosure can be implemented using hardware, software, or combinations of hardware and software. Also, where applicable, the various hardware components and/or software components set forth herein can be combined into composite components comprising software, hardware, and/or both without departing from the spirit of the present disclosure. Where applicable, the various hardware components and/or software components set forth herein can be separated into sub-components comprising software, hardware, or both without departing from the spirit of the present disclosure. In addition, where applicable, it is contemplated that software components can be implemented as hardware components, and vice-versa. 
     Software in accordance with the present disclosure, such as non-transitory instructions, program code, and/or data, can be stored on one or more non-transitory machine readable mediums. It is also contemplated that software identified herein can be implemented using one or more general purpose or specific purpose computers and/or computer systems, networked and/or otherwise. Where applicable, the ordering of various steps described herein can be changed, combined into composite steps, and/or separated into sub-steps to provide features described herein. 
     Embodiments described above illustrate but do not limit the invention. It should also be understood that numerous modifications and variations are possible in accordance with the principles of the invention. Accordingly, the scope of the invention is defined only by the following claims.