Patent Publication Number: US-2021188155-A1

Title: Vehicle Modular Accessory Mounting System

Description:
RELATED APPLICATIONS 
     This application claims an invention which was disclosed in Provisional Application No. 62/932,770, with a filing date of Aug. 11, 2019, entitled “Modular Auxiliary Lighting and Accessory Mounting System”. The benefit under 35 USC § 119(e) of the United States provisional application is hereby claimed, and the aforementioned application is hereby incorporated herein by reference. 
    
    
     JOINT RESEARCH AGREEMENT 
     This invention was developed as part of a Joint Research Agreement between: HiViz LED Lighting, LLC, USA, Vision Motor Sports, Inc., USA and Vision X Asia, Korea. 
     TECHNICAL HELD 
     This disclosure generally pertains to the field of vehicle modular accessory mounting systems. More particularly, the invention pertains to vehicle modular accessory mounting systems supporting multiple types of modules, including but not limited to, LED based lighting modules. 
     BACKGROUND 
     Existing vehicle auxiliary illumination products and other vehicle accessories are typically installed using sheet metal brackets, aluminum castings or angle aluminum, and fail to meet the needs of the industry due to compromises in the installation location, reduced strength of installation supports, few if any post-installation upgradable components and limited functionality that require multiple systems to be installed to meet both illumination and traffic signaling needs. Other products attempt to deliver low-cost illumination systems by building many LEDs into a single unit with a single controller, but these solutions are similarly unable to meet the needs of the industry due to lack of flexibility and serviceability in that a failure of a single component would require replacement of the entire system and downtime for a valuable service vehicle. Still, other solutions can only address the present illumination needs with fixed system features so, for example, upgrading to support a new wireless standard, or adding a camera or other sensors, would again require replacing the entire system and downtime for a valuable service vehicle. 
     SUMMARY 
     It is desirable to have a vehicle modular accessory mounting system that installs easily on the target vehicle while ensuring full illumination of the area of interest without shading due to suboptimal installation location. Furthermore, it is desirable to have a flexible system that can be configured to provide the desired illumination level at each specific location on the vehicle. Still, further, it is desirable to have a system that supports multiple illumination modes and to configure the output of the system to match the needs of the user&#39;s specific conditions. Additionally, it is desirable to have a system that offers not only illumination but also provides optical output modes that include, ID marker lights, clearance marker lights, DOT required marker lights, FMVSS108 required auxiliary lighting, configurable flash, multiple colors, and traffic signaling. Various embodiment implementations advantageously fill these needs and address the aforementioned deficiencies by providing an extruded mounting rail designed to conform to the edge of the installation vehicle to provide a low-profile installation that casts no shadows due to the vehicle obstructing the illumination path. Additionally, various embodiment implementations, in accordance with the present disclosure, may feature addressable illumination modules that respond to control messages from an interface module to set the illumination module&#39;s output color and provide control of the brightness of each output channel in each illumination module. This allows the system to support many configurations of output color, brightness, light distribution pattern as well as additional alert and traffic signaling functions which include but are not limited to traffic directing, traffic advising, flashing white, flashing color and light motion effects with white or color light. 
     In an embodiment according to the present disclosure, a vehicle modular accessory mounting system may include: an extruded mounting rail designed to fit the installation vehicle, rail mountable illumination modules and a rail-mounted communications module. In some embodiments these components may be connected as follows: (1) a contoured extruded rail with mounting slots, that attaches to the edge of the vehicle; (2) one or more accessory modules that attach to mounting slots in the extruded rail; (3) a communications module that attaches to the mounting rails and receives signals from the vehicle and distributes power and control messages to the accessory modules using two or more conductors via integral electrical terminals built into the module or external wiring linking the module, with communication taking place over the power wires, over one or more dedicated communication wires or via wireless connection. 
     Some embodiments of the control module and accessory modules feature integral electrical connectors that with two or more conductive sockets that mate with conductive pins to allow power and control signals to be related between the adjacent accessory modules via the electrical connecting pins. Other embodiments may feature connections made via external wiring with two or more conductors, that use waterproof connections to provide additional module positioning flexibility. Furthermore, some embodiments may include conductive sockets on one side of the accessory module and conductive pins on the other side of the accessory module, allowing accessory modules to connect to one another without the need for external conductive pins, much like LEGO bricks connect to one another. 
     In some examples, an embodiment implementation may include one or more of the following: the extruded mounting rail may be curved to match the curvature of the target vehicle installation location; a system may include more than one control module; the system may feature power only modules for delivering additional power to the accessories; the system may feature one or more control modules equipped with LAN or WAN wireless connectivity, for example including but not limited to Wi-Fi Bluetooth, IEEE 1609, IEEE 802.11, ETSI ITS-G5, LTE, C-V2X, or derivative wireless standards; illumination modules may be configured with an RGB output for their fourth channel; illumination modules may be addressable to allow each module to configure each of its output channels independently from the other illumination modules; the system may include external connections for communication with an alert system, for example, HAAS Alert, or Digital Alert Warning System—DAWS, or other alert systems, to receive, respond to, or generate emergency vehicle related signals. 
     The disclosed embodiments are unique when compared with other known devices and solutions because provides; (1) quick, easy and secure installation, via an extruded rail featuring longitudinal slots in two planes, allowing a configurable number of modules to be installed at any location on the rail, with the rail attaching to two planes to a vehicle&#39;s edge, with examples including but not limited to, a first plane being the vehicle roof and a second plane being the area above the vehicle windshield in line with the windshield, or similarly the top surface of a vehicle and a mating vertical surface of the vehicle, providing a strong, secure module mounting location with optimal positioning for optical performance while allowing a flexible number of modules to be placed anywhere along the mounting rail; (2) a modular system allowing many different configurations that can be easily modified, serviced and upgraded, including adding and removing accessory modules as needs evolve or new modules are released; (3) a versatile system that allows exactly the amount of illumination to be placed at the desired location with the desired distribution pattern; and (4) optional addressable mode for illumination modules that allow implementation of traffic directing functions and high visibility alert patterns. 
     The secure, convenient mounting location on the vehicle edge, the availability of vehicle power and bidirectional communication via the communication module provide ideal mounting locations for other vehicle accessory modules, including sensing modules that may collect information and or output modules. Output modules may include, but are not limited to laser outputs with either single beam, multiple beam or grid patterns in the visible and or infrared spectrums, UV or IR Light Sources, light sources with warmer or cooler color temperature than the primary LED light sources, RF emitters, audible output emitter. Sensing or detection modules may include, but are not limited to sensors capable of measuring, recording or detecting: temperature, distance, sound, vibration, light level, light color, motion, distance, video capture, image capture, detection of microwave or RF signals, receptions of microwave or RF signals. Additionally, network connections may be used for storage, analysis or notification based on data acquired from the sensor modules. 
     The disclosed device is unique in that it is structurally different from other known devices or solutions. More specifically, the device is unique due to the presence of (1) a mounting system using a custom extrusion with a cross-section accommodating the profile of the mounting edge of the vehicle, that is straight or curved along its length to match the mounting, that provides attachment points in two planes and; (2) modular accessory modules, including illumination modules, with multiple channels of LEDs that can be controlled independently allowing the selection of color, brightness, and light dispersion pattern; and (3) communication modules that serve as a communications bridge between the illumination system and external networks, including but not limited to the vehicle onboard messaging systems. 
     This disclosure will now provide a more detailed and specific description that will refer to the accompanying drawings. The drawings and specific descriptions of the drawings, as well as any specific or alternative embodiments discussed, are intended to be read in conjunction with the entirety of this disclosure. The Vehicle Module Accessory Mounting System may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein; rather, these embodiments are provided by way of illustration only and so that this disclosure will be thorough, complete and fully convey understanding to those skilled in the art. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWING 
         FIG. 1 .—Highlights details of illumination module and mounting rail, showing how the modules may mount on an example rail. 
         FIG. 2 .—Front and back views of one embodiment of an illumination module. 
         FIG. 3 .—A frontward exploded view of one embodiment of an illumination module. 
         FIG. 4 .—A rearward exploded view of one embodiment of an illumination module. 
         FIG. 5 .—Exploded view of one embodiment of an illumination module showing example optics, printed circuit board and heatsink. 
         FIG. 6 .—Exploded view of illumination module rear housing 
         FIG. 7 .—Cross-sectional view of one embodiment of an illumination module. 
         FIG. 8 .—Profile cross-sectional view of one embodiment of an illumination module, 
         FIG. 9 .—Diagram illustrating the driving of multiple LED channels for one embodiment of an illumination module. 
         FIG. 10 .—Example embodiments of an extrude mounting rail. 
         FIG. 11 .—Example embodiment of radius profile rail showing vehicle mounting holes and slots. 
         FIG. 12 .—Example of 90 Degree Straight edge embodiment showing vehicle mounting holes and slots. 
         FIG. 13 .—Illustration showing example 90 Degree Straight profile rail with mounted illumination modules. 
         FIG. 14 .—Example 90 Degree Straight edge rail embodiment with installed communications modules and illumination modules. 
         FIG. 15 .—Illustration of radius profile mounting rail installed on a vehicle with communication and illumination modules. 
         FIG. 16 .—Illustration of a 90 Degree Straight rail populated with communication and illumination modules mounted on a vehicle. 
         FIG. 17 .—Illustration of a radius profile system with a communication module and power module, populated with illumination modules and installed on a vehicle. 
         FIG. 18 .—One example embodiment of an illumination module. 
         FIG. 19 .—Another example embodiment of an illumination module. 
         FIG. 20 .—Exploded view of an example embodiment of an illumination module, 
         FIG. 21 .—Illustration of example accessory module power and signal connections. 
         FIG. 22 .—Illustrations of example modular auxiliary illumination systems installed on vehicles, 
         FIG. 23 .—Example system embodiments mounted on poles. 
         FIG. 24 .—Illustration of a service vehicle requiring an illumination system with low mounting profile. 
         FIG. 25 .—Overhead view illustrating a vehicle with mounting rails and modules installed along the front, left, right and rear edges of the vehicle, 
         FIG. 26 .—Lighting system control panel. 
         FIG. 27 .—Images demo from video showing traffic director demonstration video, 
         FIG. 28 .—Image demo from video showing marker light mode, 
         FIG. 29 .—Image demo from video showing scene light channel for all modules. 
         FIG. 30 .—Image demo from video showing flood light channel for all modules. 
         FIG. 31 .—Image from demo video showing spot light channel for left most modules. 
         FIG. 32 .—Image from test video showing illumination system controlled over Wi-Fi. 
         FIG. 33 .—Page from upcoming catalog. 
         FIG. 34 .—Another page from upcoming catalog. 
         FIG. 35 .—Diagram showing an example of possible vehicle to system wiring. 
         FIG. 36 .—Some examples of possible vehicle to system connections. 
         FIG. 37 .—One schematic page for one possible embodiment of an illumination module. 
         FIG. 38 .—Another schematic page for a possible embodiment of an module. 
         FIG. 39 .—Another schematic page for a possible embodiment of an illumination module. 
         FIG. 40 .—An example accessory module embodiment featuring a combination camera and LED lighting accessory module, 
         FIG. 41 .—An example accessory module embodiment of featuring a single high output LED module. 
         FIG. 42 .—An example accessory module embodiment of a communications module mounted on a 90 Degree T-rail. 
     
    
    
     DETAILED DESCRIPTION 
     The present disclosure is directed to a Vehicle Modular Accessory Mounting System. 
     In its most complete version, the vehicle auxiliary accessory mounting system is made up of the following components: multiple extruded rails featuring longitudinal mounting T-slots along their length, each rail having a cross-section designed to fit the mounting edge contour of the service vehicle mounting location with a length and curvature along the length to match desired installation edge of the service vehicle with rails mounted above the window line of the vehicle, rails mounted along the top edge along the sides of the vehicle, rails mounted along the top edge of the back of the vehicle, rails mounted along the vertical edges at the rear of the vehicle and rails mounted on poles lights that may be elevated or mounted or supported or elevated external from the vehicle; each rail equipped with multiple addressable accessory modules, that may include illumination modules featuring multiple output channels including a color output channel; with each rail having at least one communications module with large arrays of accessory modules having a second module at the end opposite the communication module to provide additional power for the accessory modules. These components are combined together to create an architecture for the vehicle modular accessory mounting system that wraps the service vehicle in addressable accessory modules, which may include illumination modules that can be elevated, providing a complete lighting solution that can be configured to deliver exactly the amount of light required in any direction around the vehicle. It should further be noted that this configuration not only allows light to be directed only in the direction and distribution pattern desired, preventing undesired glare and associated safety concerns but can also be used for generating traffic management light patterns and the entire system can be reconfigured during use to change not only the illumination patterns but can rotate the illumination and traffic management patterns around the vehicle, allowing quick and easy customization of the illumination system output as the site needs evolve without requiring the vehicle to be moved. 
       FIG. 1  shows the components of the modular auxiliary illumination system. Element  100  is one embodiment of an accessory module, an illumination module, and shows the module housing  110 , the T-Slot retention tabs  119 , the protective cover  120  for the LEDs and optics, along with connection pins  350  that provide at least two pins for module power and may provide additional pins for communication connections to the module and may carry digital signals between the accessory module and the communications module  360 . The communications module  360 , also referred to interchangeably as a control module in this document, connects to the vehicle via  361  power cables and communications cables  363 . The communication module can respond to and generate vehicle voltage logic signals on one or more conductors in the communications cable  363  to establish desired operating modes and to communicate system status to the vehicle. Additionally, the communications module  360  may also communicate with vehicle or on-scene control via a wireless interface (not shown in  FIG. 1 ), which may include, but is not limited to LTE, Wi-Fi, Bluetooth. The communications module  360  serves as a bridge between the vehicle communication system, which may use wired and or wireless protocols including, but not limited to, CAN, LIN, FlexRay, MOST, DC-BUS, IEBUS, J1850, ISO 9141-17-2, D2b, VAN, 12C, SPI, or RS-485. The communications module  360  may also communicate with other system modules, for example illumination or sensor modules, using one aforementioned communication protocols. The communication module  360  and illumination modules  100  mount to an extruded rail  200  with slots  210  to receive T-Slot retention tabs  119 . The extruded rail  200  attaches to the edge of the vehicle using methods including but not limited to, screws, bolts, welding, tape or adhesives (not shown in  FIG. 1 ) connect the rail  200  to the vehicle in two planes. The cross-section of the mounting rail  200  is designed to match the edge profile of the installation vehicle. Along its length the mounting rail  200  is either straight or curved to match the curvature of the installation edge, a vehicle cab roofline for example. The combination of edge mounting and attachment in two planes provides a strong, rigid connection to the vehicle, providing an ideal mounting location for other vehicle accessories. 
       FIG. 2  shows front and rear views of one embodiment of an illumination module  100 . The housing  110  serves both protection and heat conduction roles. The housing  110  features pin passage ports  115  on the left and right side of the module for access to the pin interconnect assembly  300 . Note that unused pin passage ports  115  are sealed with waterproof plugs at installation. The module features a waterproof vent  117  and heatsink fins  118 , T-Slot retention tabs  119  and  119   a  mate with receiving slots the mounting rail (not shown in  FIG. 2 ) with  119   a  providing a locking function to secure the module in place on the rail. A clear cover  120  protects the optics and LEDs from impact and weather. 
       FIG. 3  shows an exploded front view of one embodiment of an illumination module. The housing  110  includes a groove  111  for a gasket to seal the clear cover  120  to the housing  110 , A heatsink  112 ,  112 a and  112 b conducts heat away from the LEDs, top channel LEDs  1310  shown. A wire passage  113  allows wiring to pass from the optical system printed circuit board  133  to the intermediary connection board  330 . Connection ports  115  on the left and right side of the housing  110  provide access to the pin interconnect assembly  300 . Venting mechanism  117  prevents pressure buildup in the housing  110 . T-Slot retention tabs  119  and  119   a  mate with receiving slots the mounting rail (not shown in  FIG. 3 ), with  119   a  providing a locking function to secure the module in place on the rail. A clear cover  120  protects the optics and LEDs from impact and weather. The optical assembly  130  contains the optical system printed circuit board  133  containing the LED drivers (not shown in  FIG. 3 ), communications transceiver (not shown in  FIG. 3 ), the top channel LEDs  131   c  for the spot beam, the reflector optics  134  for a spot beam, the optics  135  for a scene beam, the flood and signal lighting optics  136 , and heatsink  140 , Also shown are the pin interconnect assembly  300  with rear cover  310 , intermediary connection board  330  and rear cover sealing gasket  340 . A male pin assembly  350  provides an electrical connection between the module&#39;s pin interconnection assembly  300  and a neighboring module&#39;s pin interconnection assembly  300 . 
       FIG. 4  shows an exploded rear view of one embodiment of an illumination module. The module housing drawing shows a wiring passageway  113 , a receiving block  114  for mounting the lower T-Slot retention tab  119  that will mate with a matching slot in the mounting rail (not shown in  FIG. 4 ), pin passage ports  115  on the left and right side of the module to allow the pin connection assembly  350  to access to the module&#39;s pin interconnect assembly  300  to provide power and signal connections between modules, and heat dissipation fins  118 . The optical assembly  130  shows the reflective optics  134  of the spot beam, the optical assembly electrical cable  137  and the heat sink  140  for the LEDs and LED drivers. Also shown are the protective cover  120  and the sealing area  121  of the protective cover, 
       FIG. 5  shows an exploded view of the optical assembly  130 . Shown are the scene lighting LEDs  131   a , the floodlight and signal LEDs  131   b  which include white LEDs and optional amber, red or RGB LEDs, the spotlight LEDs  131   c , the reflective spotlight optics  134 , the scene lighting optics  135 , flood and signal lighting optics  136 , and a heatsink  140 . 
       FIG. 6  shows an exploded view illustrating the power and signal connections within an illumination module. The rear cover  310  provides a waterproof seal for the unit and holds the female receiver sockets  320  that connect power and signals to and from neighboring units. The female receiver sockets  320  are separated by insulated dividers  311  that hold the female receiver sockets  320  in the female pin retention area  312 , Each female receiver socket, or socket,  320  has a hole  321  for receiving a male connector pin  350  and a slot  323  that sets the tension needed to ensure a reliable connection. The pin assembly  351  combined with the female receiver sockets  320  in each assessor module allow power to be passed between adjacent modules. The intermediary connection board  330  features a wire passageway  331  to allow a cable (not shown in  FIG. 6 ) to pass that provides power and signal connections to the optical assembly printed circuit board (not shown in  FIG. 6 ). Power and signal reach the connection board  330  via spring-loaded contact pins  333 , with two pins per female receiver socket  320  for improved reliability and power handling. A rear cover sealing gasket  340  provides a waterproof connection between the rear cover  310  and the module housing (not shown in  FIG. 6 ), and provides a waterproof seal  343  between the male connection pins  350  and the rear cover  310 . Note that pin assembly  315  and receiver socket assembly  320  may be used in other numerical combinations, for example two conductors or four conductors (not shown in  FIG. 6 ), 
       FIG. 7  Cross-sectional view of one embodiment of an illumination module. Shown are the module housing  110 , the clear cover  120  protecting the optical system, including optical system printed circuit board  133 , the scene lighting lens  135  and LEDs  131   a , flood and signal lighting optics  136 , the spotlight reflective optics  137  and heatsink  140  for the LEDs and drivers, as well as detail of the gasket edge  314  sealing the female receiver sockets  320 , and the intermediary connection board  330 , spring-loaded contacts  333 , and rear cover sealing gasket  340 . 
       FIG. 8 . shows a profile view of a cross-section of one embodiment of an illumination module. This illustrates the structural relationship between the housing  110 , the T-Slot retention tabs  119 , and the clear protective cover  120 . Also shown are the relationships between the optical system printed circuit board  133 , scene lighting LED optics  135 , flood and signal lighting optics  136 , and heatsink  140  for the LEDs and drivers. The rear cover  310  houses the female receiver sockets  320  which connect to the intermediary connection board  330  via spring-loaded contacts  330 . Additionally, the rear cover  330  seals to the housing  110  using a weatherproof sealing gasket  340 . 
       FIG. 9  illustrates the novel way that the system ensures the maximum optical output of the system while providing maximum service life by automatically dividing a maximum 100% duty cycle between the system output channels of a module to limit the total thermal load on the available heat dissipation capacity of the system. Additionally, should ambient temperatures or localized thermal performance of specific LEDs cause the local heatsink temperature to exceed the designed operating temperature limits, each LED driver channel includes its own thermal feedback and ability to reduce the operating current to thermal protect the systems LEDs. 
       FIG. 10  shows multiple embodiments of the auxiliary illumination system extruded mounting rail illustrating how the rail is designed for installation along the edge defined where the planes of vehicle body panels meet. Shown are four cross-sectional profiles as well as examples of designs with both straight and curved linear rail sections. Note how the curved rail allows the system to conform to the curvature of a vehicle edge to simplify installations that would otherwise result in either a difficult installation or in compromise the optical performance of the system. Also note the profiles clearly illustrate the T-slot rails provided in two planes for mounting accessory modules. 
       FIG. 11  shows the profile and mounting detail for an extruded mounting rail with a radiused cross-section that is straight along its length. The rail features longitudinal mounting T-slots along the length to provide flexibility in selection of the number of accessory modules desired and the accessory module mounting locations. Note that the rail features two types of vehicle mounting points, holes for one plane and slots for the other, allowing the rail to connect to the vehicle in two planes, providing a secure connection to the target vehicle. Additionally, the slots allow flexible positioning of the rail prior to attachment via the hole. 
       FIG. 12 . shows the profile and mounting detail for an extruded mounting rail with a 90 Degree Straight cross-section that is straight along its length. Note the mounting points, holes for one plane and slots for the other, allowing the rail to connect to the surface of two planes, providing a secure connection to the target vehicle. 
       FIG. 10  shows multiple units of one embodiment of the illumination modules installed on a 90 Degree Straight profile extruded mounting rail. Note that the endmost module would have a waterproof plug over the pin access port. 
       FIG. 14  shows multiple units of one embodiment of an illumination module and a communications module installed on a 90 Degree Straight mounting rail. Note here the communications module is mounted in the center of the mounting rail with accessory modules on both sides. This is possible because the modules feature electrical connection ports on both the left and right sides of the module. 
       FIG. 15  illustrates an example of a vehicle installation of the auxiliary illumination system, Here one can see how the T-Slot retention tabs engage with the T-slots in the mounting rail. Note the mounting rail profile is designed to conform to the radius of the mounting edge of the vehicle. Also, note that the illustration shows the end module with a waterproof vent to allow pressure equalization, Also shown are the power input cable to the end cap controller from the vehicle, the large wire at the top right of the module rear, and the communications wire located just below the power input cable. Note that some end cap module may provide power input only to ensure sufficient power is available to the accessory modules on the rail. 
       FIG. 16  illustrates a potential installation location of a system similar to that shown in  FIG. 14  on a service vehicle. 
       FIG. 17  shows an example installation that includes two units of one embodiment of the communication module and eighteen units of one embodiment of the illumination modules, all mounted on a radiused extruded rail with extended top mounting flange. Note how the mounting rail is customized to fit the profile of the vehicle and the extended mounting tab allows the rail to reach a structural mounting location on the top plan of the installation side, Also, note that the mounting rail attaches to the vehicle in two different planes. Additionally, note that this installation features communications modules installed on both left and right end rail. The second communications module is providing only power to the accessory modules. 
       FIG. 18  shows details of one embodiment of an illumination module. 
       FIG. 19  show detail of another embodiment of an illumination module. 
       FIG. 20  shows an exploded view of one embodiment of an illumination module. 
       FIG. 21  shows detail related to the rear cover, female receiver sockets, gasket seals, male pin assembly and spring-loaded pin terminals connecting the female receiver sockets and intermediary connection board. 
       FIG. 22  shows an example installation of the auxiliary illumination system on two service vehicle roof profiles. 
       FIG. 23  shows an example installation of the disclosed auxiliary illumination system on truck-mounted pole lights. Note the pole lights may also be mounted and used off of the vehicle. 
       FIG. 24  Illustrates a service vehicle configuration that requires a low-profile lighting system. 
       FIG. 25 . Overhead view illustrating a vehicle with mounting rails and modules installed along the front, left, right and rear edges of the vehicle, Note how the system can synchronize the module addresses to create a continuous set of individual modules surrounding the vehicle, each module with multiple channels, and each output channel of each module can be controlled independently. 
       FIG. 26 .—Illustration of one possible embodiment of a system control panel for a vehicle with a system similar to that shown in  FIG. 25 . The system control panel allows the accessory module operating modes to be configured as desired. For example, the system can illuminate the work site as needed on the sides of the vehicle facing the work site and the sides facing traffic can be set to display traffic signaling mode to direct traffic around the vehicle. 
       FIG. 27 .—Images from a demonstration video showing the function and apparent motion of the color signal channel when operating in traffic signaling mode. Traffic signaling would be used on any side of the vehicle visible to traffic for reduced driver glare and improved visibility of the service vehicle to increase safety for both drivers and service personnel. 
       FIG. 28 .—Image from demo video showing marker light mode. The modules configured as marker lights meet DOT requirements for vehicle marker lights. The channels of other models remain available to be configured as desired. 
       FIG. 29 .—Image from a demo video showing scene light channel for all modules. Scene lighting is in a downward direction from the illumination module and provides lighting in the area immediately surrounding the vehicle. All light channels are available simultaneously but the color signal channel would be swamped in intensity by the flood light. 
       FIG. 30 .—Image from a demo video showing flood light channel for all modules. Flood light is designed to provide working illumination of the vehicle work area. All light channels are available simultaneously but the color signal channel would be swamped in intensity by the flood light. 
       FIG. 31 .—Image from a demo video showing the spotlight channel for leftmost modules. Spot mode focuses a high intensity light on more distant targets. All light channels are available simultaneously but the color signal channel would be swamped in intensity by the flood light 
       FIG. 32 .—Image from test video showing a vehicle modular accessory system configure as an auxiliary illumination system, with the system being controlled from a laptop via Wi-Fi. The laptop first turns on all white light channel of the center module, then turns on the white channels of the left most and right most lights and then moves the lights toward the center and adds another pair of outside. Note the lights are a low duty cycle to prevent overloading the camera exposure. 
       FIG. 33 .—Page from an upcoming product catalog describing the modular auxiliary illumination system. 
       FIG. 34 .—Another page from the upcoming product catalog describing the modular auxiliary illumination system. 
       FIG. 35 .—Diagram showing an example of possible vehicle to system wiring. Shown are signal wires from the vehicle that can be controlled via switches, relays or a control system to set voltage levels on the wires to the communication module that will set modes for the system that will be transmitted from the communications module to the illumination module. 
       FIG. 36 .—These diagrams show possible wiring connections between the vehicle and the communication or control module to signal to the system the desired lighting modes of the illumination modules. 
       FIG. 37 .—A schematic page for one possible embodiment of an module. Note the channel designations associating each lighting function with an output channel of the illumination module. Note that an illumination module may include one or more channel outputs configuration and is not limited to only the possible embodiments shown here for reference. Also note that the microcontroller receiving communications from the communications or control module includes both receive and transmission lines supporting bidirectional data flow between the communications or control modules and the system accessory modules, in this case an illumination module. 
       FIG. 38 .—Another schematic page showing potential configurations for a possible embodiment of an illumination module. 
       FIG. 39 .—Yet another schematic page showing potential configurations for a possible embodiment of an illumination module. 
       FIG. 40 .—An example accessory module embodiment featuring a combination camera and LED lighting accessory module. The integrated LEDs lighting allow the module to provide illumination for the camera. The video feed can be viewed from a vehicle mounted remote display or be routed off of the vehicle via wireless networking for off vehicle monitoring. 
       FIG. 41 .—An example embodiment of an accessory module featuring a single high output LED module. This type of embodiment allows the selection of individual output power, color and light distribution on a module by module basis. 
       FIG. 42 .—An example embodiment of a communications module mounted on a 90 Degree Tee rail. Note that the Trail references two planes with a flat bottom and a front lip. 
     Additional Information 
     Industrial automobiles used as service vehicles, firetrucks for example, frequently require auxiliary lighting. Often it is desirable to mount auxiliary lighting on an edge of the vehicle, for example along the front edge of the vehicle where the windshield meets the roof of the cab, for best visibility. This mounting location is important but has been historically difficult to attach to. 
     Typically sheet metal cut brackets or aluminum castings have been attached to the bottom or sides of a single light fixture and attached near the front of the roof of the cab or near the edge of the vehicle body. Lights can be mounted with welded or bolted stanchions on the edge of the vehicle. Cast brackets can be used which attach to the bottom or sides of the light. 
     The embodiment examples described herein use a tooled extrusion bracket which on one side matches both the radiused edge profile and the contour of the vehicle&#39;s body. On the other side, the extrusion has a mating face to allow for installation of a light fixture or fixtures using captive hardware. This extrusion being an intermediary mounting rail allows for installation of various modular accessories along the edge of the vehicle body. 
     The benefit is that modules can be installed on the edge of the vehicle, while still being totally secured to the vehicle, and not being mounted in such a way that a shadow is cast. Functionally, you would attach the extruded bracket to the body, then slide the desired modules into the extrusion, then use the fixture. 
     The advantage of an intermediary rail is that the modules are then installed in a very low profile and streamlined way which allows secure attachment along the entire length of the vehicle body, It also allows for ease of service as once the rail is attached to the vehicle body, no longer is any sort of access required on the back side to add or remove the light fixture on the outside of the apparatus. The advantage of that is minimal down time, minimal warranty labor, and ease of service. Additionally, by tooling a bracket to attach to each style of cab, the mounting rail can be custom-fitted to each cab line a glove on a hand versus just bolting on a light in a universal way. 
     An extruded single piece brow light was introduced and became very popular. As the market adopted the technology, the optimal mounting location was realized to be ON THE EDGE of the cab. This was often not feasible because the cab is radiused, because there is some sort of duct work behind the edge of the cab, or because the apparatus manufacturer did not have the resources or available budget to design the bracket system. As a result, many fixtures that should have been placed on the “brow” of the cab ended up on the “roof” of the cab, which resulted in significant shadowing in front of the apparatus. 
     We found that the apparatus manufacturers just wanted to be able to bolt the light on, and be done with ft. However, just “bolting on” was not easy with the existing tech, and by giving the apparatus manufacturer leeway for where the light is installed, it also gave them leeway to install the light incorrectly. 
     As the new brow light concept was formalizing, the thought was to extrude a single mounting bracket for each cab, and not give the apparatus manufacturer an option. If there is only one bracket that attaches to the specific cab, and it is cut to length and designed specifically to match the contour of that cab, it would be impossible to mess up, or at least difficult to not install correctly 
     One sticking point was it is difficult to make an intermediary bracket that contours both vertically and horizontally. Some cabs are “bowed” and that curve requires the extrusion to be bent as well. Bending the rail caused the problem that one-piece extruded light modules would no longer fit on the rail. 
     The solution was to use multiple small modules attached to a long rail. This allows a rail to be custom fit to the vehicle for an easy, secure attachment to a vehicle in the ideal location. The rail then serves as a reliable, easy to use mounting location for accessory modules for the service life of the vehicle. 
     Most manufacturers in the past have used cast brackets or sheet metal brackets to accommodate the profile of the cab. The lights have historically all been a single module with two brackets attaching them to the cab. 
     Commercial extruded rails with lights to exist, but these are typically complete warning light bar assemblies, which are not interconnected, do not conform to the profile or curvature of the roof edge and attached directly to a single plane on the cab. 
     One point of innovation here is that a single bracket goes between the cab and the modules. Not an extrusion with a bunch of brackets hanging off of it, but the extruded bracket being the ONLY thing between the body and the modules. 
     Another legacy technology is a warning lightbar that attaches to the face of an ambulance box. This is not a contoured part that goes on the corner of the truck but rather a piece that attached on the vertical face. Upgrading or replacing the lightbar requires removing the screws from the surface and leaves holes that need to be sealed and rust-proofed unless the mounting pattern and screw sizes of the replacement lightbar matches exactly. 
     Different features, variations and multiple different embodiments have been shown and described with various details. What has been described in this application at times in terms of specific embodiments is done for illustrative purposes only and without the intent to limit or suggest that what has been conceived is only one particular embodiment or specific embodiments. Accordingly, it is to be understood that the embodiments of the invention herein described are merely illustrative of the application of the principles of the invention. Reference herein to details of the disclosed and illustrated embodiments is not intended to limit the scope of the claims, which themselves recite those features regarded as essential to the invention.