Patent Publication Number: US-2017363026-A1

Title: Methods and systems for operating an engine

Description:
TECHNICAL FIELD 
     The present disclosure relates to an engine. More particularly, the present disclosure relates to methods and systems for operating the engine in order to reduce engine idling. 
     BACKGROUND 
     Engines have found their application in various fields such as, but not limited to, power generation, mining applications, infrastructure based applications, and well service applications. Further, the engines are utilized to perform various tasks, when operating in the aforementioned fields. During the execution of such tasks, there may exist a time period where the engine operates without any load and thus is idling. During idling, the engine continues to consume fuel. 
     U.S. Pat. No. 9,181,915 (&#39;915 reference) discloses a vehicle power management system. The vehicle power management system shuts down the engine, when the engine power is not needed. The vehicle power management system determines whether a battery charge and a coolant temperature are in a predetermined range. If the battery charge and the coolant temperature are in the predetermined range, the engine is shut down. The engine is restarted when the coolant temperature or the battery charge dips below respective threshold values. Shutting down and restarting the engine based on the coolant temperature and the battery charge may ignore other conditions that are required to take into account to shut down/restart the engine. 
     SUMMARY OF THE INVENTION 
     Various aspects of the present disclosure disclose a method for operating an engine. The method includes activating an engine idling reduction mode. The engine is shut down when the engine idling mode is active and when a measure of at least one first parameter, associated with each of one or more components coupled to the engine, is in respective predetermined ranges. The one or more components comprise at least a transmission assembly. The at least one first parameter corresponds to a temperature of oil in the transmission assembly. The engine is started when the engine idling mode is active and when the measure of the at least one first parameter, associated with at least one of the one or more components, is less than predetermined threshold values. 
     Various aspects of the present disclosure disclose an engine system. The engine system comprises an engine. Further, the engine system comprises one or more components coupled to the engine. Furthermore, the engine system comprises a controller that is configured to activate an engine idling reduction mode. The controller further shuts down the engine when the engine idling reduction mode is active and when a measure of at least one first parameter, associated with each of the one or more components, is in respective predetermined ranges. The one or more components comprise at least a transmission assembly, and the at least one first parameter corresponds to a temperature of oil in the transmission assembly. The controller further starts the engine when the engine idling reduction mode is active and when the measure of the at least one first parameter, associated with at least one of the one or more components, is less than predetermined threshold values. 
     Various aspects of the present disclosure disclose an engine idling reduction system. The engine idling reduction system comprises one or more first sensors configured to determine a measure of at least one first parameter associated with one or more components coupled to an engine. The one or more components comprise at least a transmission assembly. The at least one first parameter corresponds to at least a measure of a temperature of oil in the transmission assembly. The engine idling reduction system further comprises a controller configured to activate an engine idling reduction mode. The controller is further configured to shut down the engine when the engine idling reduction mode is active and when the measure of the at least one first parameter, associated with each of the one or more components, is in respective predetermined ranges. Additionally, the controller is further configured to start the engine when the measure of the at least one first parameter, associated with at least one of the one or more components, is less than predetermined threshold values. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  illustrates a diagrammatic illustration of an engine system, in accordance with the concepts of the present disclosure; 
         FIG. 2  illustrates a schematic of an engine idling reduction system, in accordance with the concepts of the present disclosure; 
         FIGS. 3 a , 3 b , and 3 c    illustrate a flowchart of a method for operating an engine, in accordance with the concepts of the present disclosure; and 
         FIG. 4  is a state diagram illustrating various states of operation of the engine, in accordance with the concepts of the present disclosure. 
     
    
    
     DETAILED DESCRIPTION 
     Referring to  FIG. 1 , an engine system  100  is illustrated. The engine system  100  includes an engine  102  having a crankcase  104 , an inlet port  106 , and an exhaust port  108 . Further, the engine system  100  includes a transmission assembly  110 , a turbocharger  112 , an engine cooling unit  114 , a voltage source such as a battery  116 , an alternator  118 , a first starter motor  120 , a second starter motor  122 , and an engine idling reduction system  124 . The engine idling reduction system  124  includes one or more first sensors  126   a,    126   b,    126   c,  and  126   d,  and one or more second sensors  128   a,    128   b,  and  128   c.  In an embodiment, the transmission assembly  110 , the turbocharger  112 , the engine-cooling unit  114 , and the battery  116 , correspond to one or more components coupled to the engine  102 . 
     The engine  102  may be based on one of the commonly applied power-generation units, such as an internal combustion engine (ICE). The engine  102  may include a V-type engine, in-line engine, or an engine with different configurations, as is conventionally known. Although not limited, the engine  102  may be a spark-ignition engine or a compression ignition engine, which may be applied in construction machines or locomotives. However, aspects of the present disclosure, need not be limited to a particular engine type. In an embodiment, during engine operation, exhaust gases are released through the exhaust port  108 . 
     The crankcase  104  includes a housing that encloses a crankshaft. The crankshaft is connected to the piston (in the engine  102 ) through a connecting rod. In an embodiment, the piston is connected to the crankshaft in such a manner that the reciprocating motion of the piston is converted into the rotary motion of the crankshaft. The rotary motion of the crankshaft is transferred to the alternator  118  and the transmission assembly  110 . 
     In an embodiment, the transmission assembly  110  includes a plurality of gears. Each gear in the plurality of gears has a predetermined ratio. For example, if the transmission assembly  110  includes a first gear having a first ratio and a second gear having a second ratio. In an embodiment, the ratio of the gear is deterministic of an amount of torque and speed to be transferred from the engine  102  to equipment coupled to the engine  102 . In an embodiment, a gear from the plurality of gears may be engaged based on an input received from an operator of the engine  102 . For example, if the gear engaged in the transmission assembly  110  is a neutral gear, zero torque or speed is transferred to the connected equipment. If the gear engaged is any gear other than the neutral gear, a predetermined torque is transferred to the equipment. The ratio of the gear determines the amount of the predetermined torque. In an embodiment, the transmission assembly  110  may further include brakes that is configured to stop the rotation of an output shaft of the transmission assembly  110 . The transmission assembly  110  may correspond to a manual transmission assembly, an automatic transmission assembly, or a semi-automatic transmission assembly, without departing from the scope of the disclosure. The transmission assembly  110  may further include oil that is circulated through the transmission assembly  110  for lubrication of the plurality of gears. 
     The turbocharger  112  includes a turbine  127  and a compressor. The turbine  127  receives the exhaust gases from the engine  102  through the exhaust port  108 . In an embodiment, the turbine  127  includes an inlet  129  that is configured to receive the exhaust gases from the engine  102 . The exhaust gases cause the turbine  127  to rotate, which in turn operates the compressor of the turbocharger  112 . The compressor sucks and compresses the air from the environment and provides the compressed air into the engine  102  through the inlet port  106 . 
     The engine-cooling unit  114  is configured to cool the engine  102  using liquid coolant. The coolant is circulated around the engine  102 . In an embodiment, the heat generated in the engine  102 , due to the combustion of the fuel, is transferred to the coolant. Further, the engine-cooling unit  114  includes a heat exchanger, such as a radiator, which facilitates the dissipation of the heat of the coolant into the atmosphere. In an embodiment, the engine cooling unit  114  may further include a water jacket (not shown) disposed around the transmission assembly  110 . A tube cooler (not shown) coupled to the water jacket may be utilized to transfer heat from the transmission assembly  110  to the engine  102 . 
     The battery  116  corresponds to a voltage source that is configured to provide electrical energy to operate various electrical equipment of the of the engine system  100 . For example, the battery  116  operates the second starter motor  122  for cranking the engine  102 . In an embodiment, the alternator  118  charges the battery  116  using the engine&#39;s power. In an embodiment, the battery  116  may be realized through a lead-acid type battery. However, other types of batteries that are capable of operating the electrical equipment in the machine may be contemplated. 
     The first starter motor  120  is coupled to the crankshaft. The first starter motor  120  is configured to start the engine  102 . In an embodiment, the first starter motor  120  is operated using an external power source (i.e., power source outside the engine system  100 ). The first starter motor  120  rotates the crankshaft in order to start the engine  102 . In an embodiment, the first starter motor  120  may correspond to a pneumatic starter motor or a hydraulic starter motor. In an embodiment, when the first starter motor  120  corresponds to the hydraulic starter motor, the external power source utilized to operate the first starter motor  120  is a wet kit. In an embodiment, the wet kit corresponds to a machine that drives the first starter motor  120  using pressurized liquid. In alternate embodiment, when the first starter motor  120  corresponds to the pneumatic starter motor, the first starter motor  120  is operated using compressed air stored in an accumulator. In some embodiments, the first starter motor  120  may correspond to a combination of the pneumatic starter motor and the hydraulic starter motor. In another embodiment, the first starter motor  120  may be a spinning inertia based starter motor. 
     In an embodiment, the second starter motor  122  is coupled to the crankshaft in a similar manner in which the first starter motor  120  is coupled to the crankshaft. In an embodiment, the second starter motor  122  corresponds to an electric starter motor that receives power from the battery  116  to rotate the crankshaft and thus to start the engine  102 . 
     Referring to  FIG. 1  and  FIG. 2 , the engine idling reduction system  124  includes the one or more first sensors  126   a,    126   b,    126   c,  and  126   d,  and the one or more second sensors  128   a,    128   b,  and  128   c,  a controller  130 , and an alarm device  132 . 
     The one or more first sensors  126   a,    126   b,    126   c,  and  126   d  are configured to determine a measure of at least one first parameter (hereinafter referred to as the first parameter) associated with each of the one or more components coupled to the engine  102 . As discussed supra, the one or more components comprise the transmission assembly  110 , the turbocharger  112 , the engine-cooling unit  114 , and the battery  116 . Therefore, the one or more first sensors  126   a,    126   b,    126   c,  and  126   d  determine the measure of the first parameter associated with each of the transmission assembly  110 , the turbocharger  112 , the engine-cooling unit  114 , and the battery  116 . In an embodiment, the first parameter corresponds to a temperature of the coolant in the engine cooling unit  114 , a temperature of the inlet  129  of the turbine  127  in the turbocharger  112 , a temperature of the oil in the transmission assembly  110 , and a state of charge (SOC) of the battery  116 . In an embodiment, each of the first sensors  126   a,    126   b,  and  126   c  correspond to a temperature sensor that is used to determine the measure of the temperature of the oil in the transmission assembly  110 , the temperature of the coolant in the engine cooling unit  114 , and the temperature of the inlet  129  of the turbine  127  in the turbocharger  112 , respectively. In an embodiment, the temperature sensor may be realized through any known technologies such as, but not limited to, a thermistor, a thermocouple, and a silicon bandgap temperature sensor. In an embodiment, the first sensor  126   d  is configured to determine the measure of the SOC of the battery  116 . 
     In some embodiments, the one or more first sensors  126   a,    126   b,    126   c,  and  126   d  may be installed in the equipment that is external to the engine system  100 . For example, the one or more first sensors  126   a,    126   b,    126   c,  and  126   d  may be installed in the equipment that is driven by the engine  102  and that is external to the engine system  100 . In an embodiment, a type of the equipment may be determined based on the field in which the engine system  100  is being used. For instance, if the field in which the engine system  100  is being used is a well service application, one of the equipment that is driven by the engine  102  may correspond to a frac pump. In such a scenario, the one or more first sensors  126   a,    126   b,    126   c,  and  126   d  may be installed in the frac pump to determine the first parameter associated with the frac pump. Further, the first parameter associated with the frac pump may include at least one of a temperature of the frac pump or a hydraulic pressure in the frac pump. Further, to measure the temperature and the hydraulic pressure the one or more first sensors  126   a,    126   b,    126   c,  and  126   d  may include a temperature sensor and a pressure sensor, respectively. 
     The one or more second sensors  128   a,    128   b,  and  128   c  are configured to determine a measure of one or more second parameters associated with the engine  102  and the one or more components. In an embodiment, the second sensor  128   a  is installed on the crankshaft in the crankcase  104 . In an embodiment, the second sensor  128   a  is configured to measure the speed of the engine  102 . In an embodiment, the second sensor  128   b  is utilized to determine a measure of load on the engine  102 . In some embodiments, the load on the engine  102  may be determined by the controller  130  using conventional methods. Further, the second sensor  128   c  is installed in the transmission assembly  110  and is configured to determine the gear, of the plurality of gears, which is engaged in the transmission assembly  110 . Further, the second sensor  128   c  is configured to monitor a state of the brakes. For instance, the second sensor  128   c  may determine whether the brakes are in a locked state (i.e., brakes are stopping the rotation of the output shaft of the transmission assembly  110 ). In an embodiment, the state of the brakes additionally constitutes the one or more second parameters. 
     In an embodiment, the controller  130  is configured to control the engine  102 . The controller  130  is communicatively coupled to the one or more first sensors  126   a,    126   b,    126   c,  and  126   d,  the one or more second sensors  128   a,    128   b,  and  128   c,  and the alarm device  132 , through wired or wireless connection. In an embodiment, the controller  130  may receive the measure of the first parameter and the measure of the one or more second parameters from the one or more first sensors  126   a,    126   b,    126   c,  and  126   d,  the one or more second sensors  128   a,    128   b,  and  128   c.  In an embodiment, the controller  130  is configured to control the operation of the engine  102  based on the measure of the first parameter and the measure of the one or more second parameters. The process of operating the engine  102  has been described later in conjunction with  FIGS. 3 a , 3 b , 3 c   , and  FIG. 4 . In an embodiment, the controller  130  may correspond to an Engine Control Unit (ECU). In an embodiment, the functionalities of the controller  130  may be implemented on an application server (not shown) installed at a remote location. The controller  130  includes a processor, a memory device, and a transceiver. 
     The processor includes suitable logic, circuitry, interfaces, and/or code that may be configured to execute a set of instructions stored in the memory device. The processor may be implemented based on a number of technologies known in the art. The processor may work in coordination with the one or more first sensors  126   a,    126   b,    126   c,  and  126   d,  and the one or more second sensors  128   a,    128   b,  and  128   c,  the memory device, and the transceiver. Examples of the processor include, but not limited to, an X86-based processor, a Reduced Instruction Set Computing (RISC) processor, an Application-Specific Integrated Circuit (ASIC) processor, a Complex Instruction Set Computing (CISC) processor, and/or other processor. 
     The memory device includes suitable logic, circuitry, interfaces, and/or code that may be configured to store the set of instructions, which are executed by the processor. In an embodiment, the memory device may be configured to store one or more programs, routines, or scripts that may be executed in coordination with the processor. The memory device may be implemented based on a Random Access Memory (RAM), a Read-Only Memory (ROM), a Hard Disk Drive (HDD), a storage server, and/or a Secure Digital (SD) card. 
     The transceiver includes suitable logic, circuitry, interfaces, and/or code that may be configured to receive data from the one or more first sensors  126   a,    126   b,    126   c,  and  126   d,  and the one or more second sensors  128   a,    128   b,  and  128   c.  The transceiver may implement one or more known technologies to support wired or wireless communication with the one or more first sensors  126   a,    126   b,    126   c,  and  126   d,  and the one or more second sensors  128   a,    128   b,  and  128   c.  Some examples of the known technologies include, but are not limited to, I2C communication protocol, Bluetooth®, ZigBee®, and SSI®. In an embodiment, the transceiver may include, but is not limited to, an antenna, a radio frequency (RF) transceiver, one or more amplifiers, Analog to digital converter, one or more oscillators, a digital signal processor, a Universal Serial Bus (USB) device, a coder-decoder (CODEC) chipset, and/or a local buffer. In alternate embodiment, the transceiver may communicate with the one or more first sensors  126   a,    126   b,    126   c,  and  126   d,  and the one or more second sensors  128   a,    128   b,  and  128   c  through networks, such as the Internet, an Intranet and/or a wireless network, such as a cellular telephone network, a wireless local area network (LAN) and/or a metropolitan area network (MAN). The wireless communication may use any of a plurality of communication standards, protocols and technologies, such as: Global System for Mobile Communications (GSM), Enhanced Data GSM Environment (EDGE), wideband code division multiple access (W-CDMA), code division multiple access (CDMA), time division multiple access (TDMA), Bluetooth, Wireless Fidelity (Wi-Fi) (e.g., IEEE 802.11a, IEEE 802.11b, IEEE 802.11g and/or IEEE 802.11n), voice over Internet Protocol (VoIP), Wi-MAX, a protocol for email, instant messaging, and/or Short Message Service (SMS). 
     Further, the engine idling reduction system  124  is configured to monitor one or more second parameters associated with the engine  102  and the one or more components. In an embodiment, the engine idling reduction system  124  utilizes the one or more second sensors  128   a,    128   b  and  128   c  to monitor the one or more second parameters. In an embodiment, the second sensors  128   a,  and  128   b  are installed in the engine  102  to measure a speed of the engine  102  and a load on the engine  102 . Further, the second sensor  128   c  is installed in the transmission assembly  110  to determine the gear engaged in the transmission assembly  110 . Based on the monitoring of the first parameter and the one or more second parameters, the engine idling reduction system  124  operates the engine  102 . In an embodiment, the operation of the engine idling reduction system  124  has been described later in conjunction with  FIGS. 3 a , 3 b , 3 c   , and  FIG. 4 . Further, the structure of the engine idling reduction system  124  has been described in conjunction with  FIG. 2 . 
     Referring to  FIG. 2 , the engine idling reduction system  124  is illustrated. The engine idling reduction system  124  includes a controller  130 , the one or more first sensors  126   a,    126   b,    126   c,  and  126   d,  and the one or more second sensors  128   a,    128   b,  and  128   c,  and an alarm device  132 . 
     The alarm device  132  is configured to raise an alarm or a notification for the bystanders near the engine  102 . In an embodiment, the alarm may be an audio alarm or a visual alarm. In a scenario, where the alarm corresponds to the audio alarm, the alarm device  132  may correspond to a speaker that generates a predefined audio signal based on the instruction received from the controller  130 . In a scenario, where the alarm corresponds to a visual alarm, the alarm device  132  may correspond to a display device. The display device may be a LCD display, LED display or a 7-segment display. Further, alarm device  132  may receive an instruction from the controller  130  to display a predetermined message. In another embodiment, the alarm device  132  may be configured to generate an alarm, which is a combination of both audio and visual alarm. In such a scenario, the alarm device  132  may include both the speaker and the display device. 
     INDUSTRIAL APPLICABILITY 
     Referring to  FIGS. 3 a , 3 b , 3 c    and  FIG. 4 , a flowchart  300  illustrating a method to operate the engine  102  and the state diagram  400  illustrates various states of operation of the engine  102  are illustrated, respectively. 
     At step  302 , the engine  102  is started. In an embodiment, the controller  130  is configured to start the engine  102  using the first starter motor  120 . In an embodiment, the pressurized fluid is used to operate the first starter motor  120 , which in turn starts the engine  102 . After the engine  102  is started, the engine  102  operates in the state  402  (refer  FIG. 4 ). In an embodiment, the state  402  represents a normal engine running state. 
     At step  304 , the measure of the one or more second parameters associated with the engine  102  and the one or more components coupled to the engine  102 , is received. In an embodiment, the controller  130  is configured to receive the measure of the one or more second parameters. As discussed above, the one or more second parameters include the speed of the engine  102 , the load on the engine  102 , and the gear engaged in the transmission assembly  110 . In an embodiment, the second sensor  128   a  determines the measure of speed of the engine  102 . In an embodiment, the speed of the engine  102  corresponds to a rotational speed of the crankshaft. In an embodiment, the second sensor  128   b  determines the measure of the load on the engine  102 . In an embodiment, the second sensor  128   c  determines the type of the gear engaged in the transmission assembly  110 . In an embodiment, the controller  130  is configured to receive the measure of the one or more second parameters from the one or more second sensors  128   a,    128   b,  and  128   c.    
     At step  306 , a check is performed to determine whether the speed of the engine  102  is less than a predetermined threshold of the speed. In an embodiment, the controller  130  performs the check. If the controller  130  determines that the speed of the engine  102  is less than the predetermined threshold of speed, the controller  130  performs the step  308 . Else, the controller  130  repeats the step  304 . 
     At step  308 , a check is performed to determine whether the load on the engine  102  is less than a predetermined threshold of the load. In an embodiment, the controller  130  performs the check. If the controller  130  determines that the load on the engine  102  is less than the predetermined threshold of the load, the controller  130  performs the step  310 . Else, the controller  130  repeats the step  304 . 
     At step  310 , a check is performed to determine whether the gear engaged in the transmission assembly  110  is neutral gear. In an embodiment, the controller  130  performs the check. If the controller  130  determines that the gear engaged in the transmission assembly  110  is neutral gear, the controller  130  performs the step  312 . Else, the controller  130  repeats the step  304 . 
     Additionally, in an embodiment, the controller  130  may be further configured to check if the brakes in the transmission assembly  110  are in a locked state by utilizing the second sensor  128   c.  If the brakes are in the locked state and the gear engaged in the transmission assembly  110  is neutral gear, the controller  130  performs the step  312 . 
     At step  312 , a check is performed to determine whether a time period, for which the measure of the one or more second parameters is less than the respective predetermined threshold values, is greater than a predetermined first time interval. In an embodiment, the controller  130  is configured to perform the check. In an embodiment, the check (in the step  312 ) is performed to ascertain that the measure of the one or more second parameters associated with each of the engine  102  and the one or more components, is less than or equal to the respective predetermined threshold values for the predetermined first time interval. If at the step  312 , it is determined that the time period is less than the predetermined first time interval, the step  304  is repeated. Else, the step  314  is performed. 
     In some embodiments, different time intervals for each of the one or more second parameters may be defined. For example, the controller  130  may perform a check whether the measure of the engine speed is less than the predetermined threshold value of the speed, for 15 seconds. In addition, the controller  130  may perform a check whether the load on the engine  102  is less than predetermined threshold of load, for 10 seconds. 
     At step  314 , the engine idling reduction mode (EIRM) is activated. In an embodiment, the controller  130  is configured to activate the EIRM (depicted by  404 ). When the engine idling reduction mode is activated, the engine  102  operates in the state  406 . In an embodiment, the state  406  represents that the engine  102  is on and the EIRM is active. 
     In some embodiments, the controller  130  may perform the steps  306  to  310  in any order without departing from the scope of the disclosure. Further, in an embodiment, the steps  306  to  310  may be performed in parallel. Further, it can be observed that EIRM is activated only when measure of each of the one or more second parameters associated with the engine  102  and the one or more components less than or equal to the respective predetermined threshold values for the first predetermined first time interval. For instance, let the predetermined threshold of the engine speed is 900 rpm, the predetermined threshold of the engine load is 10%, the gear that should be engaged is neutral, and the predetermined first time interval is 15 seconds. If the controller  130  determines that, for a time period greater than 15 seconds, the measure of the engine speed is 700 rpm, the measure of the engine load is 5%, and the type of the gear engaged is neutral gear, the controller  130  activates the EIRM. However, if the measure of the engine speed is 1000 rpm and the measure of remaining second parameters is same, the controller  130  will not activate the EIRM. 
     At step  316 , the alarm device  132  is activated, when the EIRM is activated. In an embodiment, the controller  130  is configured to activate the alarm device  132 . On activation of the alarm device  132 , the alarm device  132  may generate at least one of the predetermined audio signal or the predetermined visual signal. The audio signal or the visual signal warns the bystanders near the engine  102  to remain vigilant and careful, as the engine  102  is still operational. 
     At step  318 , the measure of the first parameter associated with each of the one or more components coupled to the engine  102 , is received. In an embodiment, the controller  130  is configured to receive the measure of the first parameter. As discussed above, the first parameter includes the temperature of the coolant in the engine cooling unit  114 , the temperature of the inlet  129  of the turbine  127  in the turbocharger  112 , the temperature of the oil in the transmission assembly  110 , and the SOC of the battery  116 . In an embodiment, the controller  130  receives the measure of the temperature of the coolant in the engine-cooling unit  114 , the measure of the temperature of the inlet  129  of the turbine  127  in the turbocharger  112 , the measure of the temperature of oil in the transmission assembly  110  from the first sensors  126   a,    126   b,  and  126   c,  respectively. In an embodiment, the controller  130  receives the measure of the SOC of the battery  116  from the first sensor  126   d.    
     At step  320 , a check is performed to determine whether the measure of the first parameter associated with each of the one or more components is within respective predetermined ranges. In an embodiment, the controller  130  is configured to perform the check. If the controller  130  determines that the measure of the first parameter associated with each of the one or more components is within the respective predetermined ranges, the step  322  is performed. Therefore, the controller  130  will perform the step  322  only if the measure of the temperature of the coolant, the temperature of the inlet  129  of the turbine  127 , the temperature of oil in the transmission assembly  110 , and the measure of the SOC of the battery  116 , are within their respective predetermined ranges. Else, the controller  130  repeats the step  318 . 
     Additionally, at step  320 , the controller  130  may determine the whether the measure of the first parameter associated with the equipment external to the engine system  100  is within the respective predetermined range. For example, the equipment external to the engine system  100  corresponds to the frac pump. As discussed supra that the first parameter associated with the frac pump may include at least the temperature of the frac pump and the hydraulic pressure of the fluid in the frac pump. If the controller  130  determines that the measure of the first parameter associated with the equipment external to the engine system  100 , and the measure of the first parameter associated with the one or more components, are within respective predetermined ranges, the controller  130  performs the step  322 . 
     For example, let the predetermined range of temperature of the oil in the transmission assembly  110  is 100° C.-200° C., the predetermined range of temperature of the inlet of the turbine  127  of the turbocharger  112  is 150° C.-200° C., the predetermined range of temperature of the coolant is 50° C.-100° C., the predetermined range of SOC of battery  116  is 15%-30%, the predetermined range of temperature of frac pump is 50° C.-100° C., and the predetermined range of pressure of fluid in frac pump is 500 PSI-1000 PSI. If the controller  130  determines that the temperature of the oil in the transmission assembly  110  is 110° C., the temperature of the inlet  129  of the turbocharger  112  is 175° C., the temperature of the coolant is 60° C., the SOC of the battery  116  is 20%, the temperature of the frac pump is 75° C., and the pressure of the fluid in the frac pump is 755 PSI, the controller  130  may perform the step  322 . However, if the measure the first parameter associated with any of the component is not within the respective predetermined ranges, the controller  130  will repeat the step  318 . For example, if the measure of the oil in the transmission assembly  110  is 90° C., the controller  130  will repeat the step  318 . 
     At step  322 , the engine  102  is de-rated. In an embodiment, the controller  130  is configured to de-rate the engine  102  for a predetermined second time interval. In an embodiment, the step  322  is optional. In such a scenario, the controller  130  may directly perform the step  324  after the step  320 . 
     At step  324 , the engine  102  is shut down. In an embodiment, the controller  130  is configured to shut down the engine  102  (represented by  408 ). In an embodiment, the controller  130  shuts down the engine  102  after the expiration of the predetermined second time interval and if the check performed in the steps  320  and  322  are true. The controller  130  keeps the EIRM activated even after the shut down of the engine  102 . As the engine  102  is shut down and the EIRM mode is active, the state of operation of the engine  102  is represented by the state  410 . 
     After the engine  102  is shut down and the EIRM is active, at step  326 , a check is performed to determine whether the measure of the first parameter associated with at least one of the one or more components is less than respective predetermined threshold values. In an embodiment, the controller  130  is configured to perform the check. If the controller  130  determines that the measure of the first parameter associated with any one of the one or more components is less the respective predetermined threshold values, the controller  130  performs the step  328 . Else, the controller  130  repeats the step  326 . 
     For example, let the predetermined threshold of the temperature of the oil in the transmission assembly  110  is 90° C., the predetermined threshold of the temperature of the coolant is 90° C., and the predetermined threshold of SOC of the battery  116  is 5%. If the controller  130  determines that the temperature of the oil in the transmission assembly  110  is 89° C., which is below the threshold value 90° C., the controller  130  perform the step  328  irrespective of the measure of the first parameter associated with other one or more components. 
     Additionally, the controller  130  may determine if the first parameter associated with the equipment external to the engine system  100  is less than a respective threshold value. For instance, the controller  130  may check if the measure of pressure of fluid of the frac pump is less than the predetermined threshold value. If the controller  130  determines that the measure of the first parameter associated with the equipment, external to the engine system  100 , is less than the respective predetermined threshold value, the controller  130  perform the step  328 . 
     At step  328 , the engine  102  is started. In an embodiment, the controller  130  is configured to start the engine  102  (represented by  412 ). In an embodiment, the controller  130  starts the engine  102  using the second starter motor  122 . The controller  130  utilizes the battery  116  to operate the second starter motor  122 , which in turn starts the engine  102 . When the engine  102  is ON and the EIRM is active, the engine  102  operates in the state  406 . 
     In a scenario, when the engine  102  is operating in the state  410  or state  406  (i.e., EIRM is active) and the operator of the engine  102  wants to operate the engine  102 , the operator may provide an instruction to start the engine  102 . For example, the operator may provide the instruction by engaging a gear other than the neutral gear in the transmission assembly  110 . In such a scenario, the EIRM is deactivated and the engine  102  operates in the normal engine running state  402 . In an embodiment, if the state of operation of the engine  102  is  406  before the receipt of the instruction from the operator, the only the EIRM is deactivated (represented by  414 ). Therefore, the state of the operation of the engine  102  is switched to the state  402 . In an embodiment, if the state of operation of the engine  102  is  410  before the receipt of the instruction from the operator, the engine  102  is started using the second starter motor  122  and the EIRM is deactivated (represented by  416 ). Further, the engine  102  operates in the state  402 . 
     Further, in another scenario, if the operator wants to completely shut down the engine  102 , the operator may provide an instruction to completely shut down the engine  102 . In such a scenario, both the EIRM and the engine  102  are shut down (represented by  418 ). Further, the engine  102  operates in the state  420 . 
     The disclosed embodiment encompass numerous advantages. As when the engine  102  is idling, the EIRM is activated. When the EIRM is active, the engine  102  is started and shut down intermittently based on the measure of the first parameter associated with each of the one or more components coupled to the engine  102 . Therefore, fuel consumption is reduced. Further, as the engine  102  is switched ON and OFF based on the temperature of the one or more components such that the temperature of the one or more components does not fall below the predetermined threshold, whenever the operator wants to operate the engine  102 , the engine temperature and the temperature of the one or more components will be conducive for easy start of the engine  102 . Additionally, as discussed supra, the temperature of the equipment, external to the engine system  100 , is also monitored so that easy restart of these equipment is also considered. 
     While aspects of the present disclosure have been particularly shown and described with reference to the embodiments above, it will be understood by those skilled in the art that various additional embodiments may be contemplated by the modification of the disclosed machines, systems and methods without departing from the spirit and scope of what is disclosed. Such embodiments should be understood to fall within the scope of the present disclosure as determined based upon the claims and any equivalents thereof.