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A Method For Controlling An Idle Start Stop (Iss) System Of A Vehicle And A Control Unit Thereof

Abstract: ABSTRACT A METHOD FOR CONTROLLING AN IDLE START STOP (ISS) SYSTEM OF A VEHICLE AND A CONTROL UNIT THEREOF The present invention relates to a method for controlling an Idle Start Stop (ISS) system (104) of a vehicle (100) and a control unit (102) thereof. The method comprises detecting a state and a mode of the vehicle (100). The method further comprises enabling the ISS system (104) upon detection of the state of the vehicle (100) being a non-running state, mode of the vehicle (100) being an economic mode and satisfaction of a first set of predefined conditions. The method further comprises disabling the ISS system (104) upon satisfaction of a second set of pre-defined conditions, the second set of pre-defined conditions being one of: pressing of a clutch lever/pedal by a rider of the vehicle (100); and downshifting a gear of the vehicle (100) in a pressed state of the clutch lever/pedal. Reference Figure 2A and 2B

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Notices, Deadlines & Correspondence

Patent Information

Application #
Filing Date
02 January 2024
Publication Number
27/2025
Publication Type
INA
Invention Field
MECHANICAL ENGINEERING
Status
Email
Parent Application

Applicants

TVS MOTOR COMPANY LIMITED
“Chaitanya” No.12 Khader Nawaz Khan Road, Nungambakkam Chennai Tamil Nadu - 600006 India

Inventors

1. RITHIKA SUBRAMANIAN
TVS Motor Company Limited “Chaitanya” No 12 Khader Nawaz Khan Road, Nungambakkam Chennai Tamil Nadu 600006 India
2. LOKESH TAMILSELVAN
TVS Motor Company Limited “Chaitanya” No 12 Khader Nawaz Khan Road, Nungambakkam Chennai Tamil Nadu 600006 India
3. THATAVARTHI PRAKASAM SURESH
TVS Motor Company Limited “Chaitanya” No 12 Khader Nawaz Khan Road, Nungambakkam Chennai Tamil Nadu 600006 India
4. DATTA RAJARAM SAGARE
TVS Motor Company Limited “Chaitanya” No 12 Khader Nawaz Khan Road, Nungambakkam Chennai Tamil Nadu 600006 India

Specification

Description:FIELD OF THE INVENTION
[001] The present invention relates to an Idle Start Stop (ISS) system of a vehicle. More particularly, the present invention relates to a system and a method for controlling an ISS system of a vehicle.

BACKGROUND OF THE INVENTION
[002] An Idle Start Stop (ISS) system is a technology that automatically shuts down and restarts an internal combustion engine of a vehicle to reduce amount of time the internal combustion engine spends idling, thereby reducing fuel consumption and emissions. The ISS system shuts down the internal combustion engine when the vehicle stops at a stop light or during stop and go traffic where the internal combustion engine would normally idle for a minimum of three to five seconds. The ISS system restarts the internal combustion engine automatically when the driver wants to drive the vehicle.
[003] The shutting off of the internal combustion engine as well as restarting of the internal combustion engine by ISS system are determined by certain pre-defined condition(s). For example, conventionally throttle blip, brake input and/or clutch input are required for restarting of the internal combustion engine. However, there are certain disadvantages associated with the throttle input, brake input and/or clutch input for disabling the ISS system to restart the internal combustion engine.
[004] For example, some people such as senior citizens drive the vehicle by pressing half brakes which in turn damages the brake shoes and braking performance. Also, on inclined position, brake input is not a good idea. If ISS system takes a brake input, it will not be able to show an enhance performance as in long run, brake shoes will be damaged and brake input may not be sufficient as an input for ISS. Similarly some people stop the vehicle by pressing and holding the clutch lever/pedal. In case clutch input is used as an input for ISS system, the rider will have to first leave the clutch lever/pedal and again press the clutch lever/pedal for restarting the ISS and again leave the clutch lever/pedal to move the vehicle. This additional action of riders who prefer to hold clutch lever/pedal in stop conditions should also be avoided to provide better riding experience to the rider of the vehicle. Also, throttle blip is also given as an input to disable the ISS system. However, if the throttle blip of more than a pre-defined value is given, the vehicle won’t start. Also, using throttle blip drains battery at a faster rate, which is also undesirable. In saddle type vehicle, throttle blip can also accidentally be given by a child sitting in front of a rider of the vehicle, which is undesirable.
[005] In view of the foregoing, there is a need-felt to overcome at least the above-mentioned disadvantages of the prior arts.

SUMMARY OF THE INVENTION
[006] In one aspect of the present invention, a method for controlling an Idle Start Stop (ISS) system of a vehicle is disclosed. The method comprises a step of detecting a state and a mode of the vehicle. The step of detecting is performed by a detection unit of a control unit. The method further comprises a step of enabling the ISS system to cut off an engine of the vehicle upon detection of the state of the vehicle being a non-running state, mode of the vehicle being an economic mode and satisfaction of a first set of pre-defined conditions. The step of enabling the ISS system is performed by an ISS unit of the control unit. The method further comprises a step of disabling the ISS system upon satisfaction of a second set of pre-defined conditions. The second set of pre-defined conditions being one of: (a) pressing of a clutch/lever pedal by a rider of the vehicle, (b) downshifting a gear of the vehicle in a pressed state of the clutch lever/pedal. The step of disabling the ISS system is performed by the ISS unit of the control unit.
[007] In an embodiment, the first set of pre-defined conditions comprises a distance travelled by the vehicle being greater than a pre-defined distance, a temperature of the internal combustion engine being greater than a pre-defined temperature and idling time of the internal combustion engine being greater than a pre-defined time. In a non-limiting example, the pre-defined distance is 500 meters. In a non-limiting example, the pre-defined time being 5 seconds.
[008] In an embodiment, the downshifting of the gear comprises downshifting from Nth gear to Xth gear where a value of N is always greater than a value of X and both N and X are positive integers.
[009] In an embodiment, the ISS unit is configured to receive inputs from one or more first devices, one or more second devices and one or more third devices. The one or more first devices are configured to detect distance travelled by the vehicle. The one or more second devices are configured to detect temperature of the internal combustion engine of the vehicle. The one or more third devices are configured to detect idle running time of the internal combustion engine of the vehicle.
[010] In an embodiment, the ISS unit is configured to receive an input from one or more clutch position and clutch pressure sensors and one or more gear position sensors for determination of satisfaction of the second set of pre-defined conditions.
[011] In another aspect of the invention, a control unit for controlling an Idle Start Stop (ISS) system of a vehicle is disclosed. The control unit comprises a detection unit and an ISS unit. The detection unit is configured to detect a state and a mode of the vehicle. The ISS unit is communicatively coupled to the detection unit and the ISS system. The ISS unit of the control unit is configured to enable the ISS system to cut off an engine of the vehicle upon detection of the state of the vehicle being a non-running state, the mode of the vehicle being an economic mode and satisfaction of first set of pre-defined conditions. The ISS unit of the control unit is further configured to disable the ISS system to start the engine of the vehicle upon satisfaction of a second set of pre-defined conditions. The second set of pre-defined conditions being one of: (a) pressing of a clutch/lever pedal by a rider of the vehicle, (b) downshifting a gear of the vehicle in a pressed state of the clutch lever/pedal.
[012] In an embodiment, the first set of pre-defined conditions comprises a distance travelled by the vehicle being greater than a pre-defined distance, a temperature of the internal combustion engine being greater than a pre-defined temperature and idling time of the internal combustion engine being greater than a pre-defined time. In a non-limiting example, the pre-defined distance is 500 meters. In a non-limiting example, the pre-defined time being 5 seconds.
[013] In an embodiment, the downshifting of the gear comprises downshifting from Nth gear to Xth gear where a value of N is always greater than a value of X and both N and X are positive integers.
[014] In an embodiment, the ISS unit is configured to receive inputs from one or more first devices, one or more second devices and one or more third devices. The one or more first devices are configured to detect distance travelled by the vehicle. The one or more second devices are configured to detect temperature of the internal combustion engine of the vehicle. The one or more third devices are configured to detect idle running time of the internal combustion engine of the vehicle.
[015] In an embodiment, the ISS unit is configured to receive an input from one or more clutch position and clutch pressure sensors and one or more gear position sensors for determination of satisfaction of the second set of pre-defined conditions.
[016] In yet another aspect of the invention, a vehicle is disclosed. The vehicle comprises an ISS system and a control unit. The ISS system controls the operation of the internal combustion engine. The control unit controls the operation of the ISS system. The control unit comprises a detection unit and an ISS unit. The detection unit is configured to detect a state and a mode of the vehicle. The ISS unit is communicatively coupled to the detection unit and an ISS system. The ISS unit of the control unit is configured to enable the ISS system to cut off an engine of the vehicle upon detection of the state of the vehicle being a non-running state, the mode of the vehicle being an economic mode and satisfaction of first set of pre-defined conditions. The ISS unit of the control unit is further configured to disable the ISS system to start the engine of the vehicle upon satisfaction of a second set of pre-defined conditions. The second set of pre-defined conditions being one of: (a) pressing of a clutch/lever pedal by a rider of the vehicle, (b) downshifting a gear of the vehicle in a pressed state of the clutch lever/pedal.
[017] In an embodiment, the first set of pre-defined conditions comprises a distance travelled by the vehicle being greater than a pre-defined distance, a temperature of the internal combustion engine being greater than a pre-defined temperature and idling time of the internal combustion engine being greater than a pre-defined time. In a non-limiting example, the pre-defined distance is 500 meters. In a non-limiting example, the pre-defined time being 5 seconds.
[018] In an embodiment, the downshifting of the gear comprises downshifting from Nth gear to Xth gear where a value of N is always greater than a value of X and both N and X are positive integers.
[019] In an embodiment, the ISS unit is configured to receive inputs from one or more first devices, one or more second devices and one or more third devices. The one or more first devices are configured to detect distance travelled by the vehicle. The one or more second devices are configured to detect temperature of the internal combustion engine of the vehicle. The one or more third devices are configured to detect idle running time of the internal combustion engine of the vehicle.
[020] In an embodiment, the ISS unit is configured to receive an input from one or more clutch position and clutch pressure sensors and one or more gear position sensors for determination of satisfaction of the second set of pre-defined conditions.

BRIEF DESCRIPTION OF THE DRAWINGS
[021] Reference will be made to embodiments of the invention, examples of which may be illustrated in accompanying figures. These figures are intended to be illustrative, not limiting. Although the invention is generally described in context of these embodiments, it should be understood that it is not intended to limit the scope of the invention to these particular embodiments.
Figure 1 illustrates a block diagram of a vehicle having a control unit for controlling an Idle Start Stop (ISS) system of the vehicle, in accordance with an embodiment of the present invention.
Figure 2A and Figure 2B illustrate a method for controlling an ISS system of a vehicle, in accordance with an embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION
[022] Various features and embodiments of the present invention here will be discernible from the following further description thereof, set out hereunder.
[023] Figure 1 illustrates a block diagram of a vehicle 100 having a control unit 102 for controlling an Idle Start Stop (ISS) system 104 of the vehicle 100, in accordance with an embodiment of the present invention.
[024] For the purpose of the present invention, the term “vehicle” comprises any vehicle provided with an Idle Start Stop (ISS) system such as, not being limited to, scooters, motorcycles, rickshaws, cars, trucks, etc. The term “vehicle” also comprises conventional internal combustion engine vehicles as well as hybrid vehicles.
[025] As shown in Figure 1, the vehicle 100 comprises at least one internal combustion engine 106, an ISS system 104 to control an operation of the at least one internal combustion engine 106 and the control unit 102 to enable/disable the ISS system 104. The control unit 102 is disposed in the vehicle 100 at a location which enables the control unit 102 to efficiently control the ISS system 104 of the vehicle 100. The control unit 102 comprises a detection unit 102a and an ISS unit 102b. The detection unit 102a of the control unit 102 is configured to detect a state and a mode of the vehicle 100. The state of the vehicle 100 can be determined by receiving inputs from one or more speed sensors disposed in the vehicle 100. The mode of the vehicle can be determined by the detection unit 102a based on the rate of change of the throttle opening value received by one or more throttle sensors in communication with the detection unit 102a. The mode of the vehicle 100 can also be manually selected by a rider of the vehicle 100. An instrument cluster of the vehicle 100 can provide different modes of the vehicle 100 to be selected by the rider of the vehicle 100. Also, a switch may be provided to the rider of the vehicle 100 to select one of a plurality of modes of the vehicle 100. The vehicle 100 is generally provided with a power mode and an economic mode wherein the power mode is a default setting of the vehicle 100 and the economic mode ensures that the vehicle 100 is in its most fuel-efficient configuration. Other modes can also be provided to the rider of the vehicle 100 such as, not being limited to, power mode, comfort mode, sports mode, track mode, dynamic mode, terrain mode, drift mode and/or individual mode. When the rider selects the economic mode, the information indicative of economic mode is transmitted to the detection unit 102a of the control unit 102.
[026] The ISS unit 102b of the control unit 102 is communicatively coupled to the detection unit 102a and the ISS system 104. The ISS unit 102b is configured to receive the state of the vehicle 100 and the mode of the vehicle 100 from the detection unit 102a. Upon detection of the state of the vehicle 100 being a non-running state and the mode of the vehicle 100 being the economic mode, the ISS unit 102b is configured to determine satisfaction of the first set of pre-defined conditions. Upon satisfaction of the first set of pre-defined conditions, the ISS unit 102b is configured to enable the ISS system 104 of the vehicle 100 to shut off the internal combustion engine 106 of the vehicle 100. Also, the ISS unit 102b is configured to determine satisfaction of a second set of pre-defined conditions. Upon satisfaction of the second set of pre-defined conditions, the ISS unit 102b is configured to disable the ISS system 104 to restart the internal combustion engine 106 of the vehicle 100. The second set of pre-defined conditions comprises one of: (a) pressing of a clutch/lever pedal by a rider of the vehicle 100, (b) downshifting a gear of the vehicle 100 in a pressed state of the clutch lever/pedal. If the rider of the vehicle 100 performs any one of the above-mentioned actions, the ISS unit 102b will disable the ISS system 104 to restart the internal combustion engine 106 of the vehicle 100.
[027] In an embodiment, the first set of pre-defined conditions comprises a distance travelled by the vehicle 100 being greater than a pre-defined distance, a temperature of the internal combustion engine 106 being greater than a pre-defined temperature and an idling time of the internal combustion engine 106 being greater than a pre-defined time. It is to be understood that satisfaction of all these conditions is required for the ISS unit 102b to enable the ISS system 104 to cut off the internal combustion engine 106 of the vehicle 100. In a non-limiting example, the pre-defined distance is 500 meter. In a non-limiting example, the pre-defined time is 5 seconds. In a non-limiting example, the pre-defined temperature of the internal combustion engine 106 is 75 degrees. However, such conditions should not be considered as limiting and the other set of pre-defined conditions may also be defined in the control unit 102 for enabling the ISS system 104.
[028] In an embodiment, the downshifting of the gear comprises down shifting from Nth gear to Xth gear wherein N>X and both N and X are positive integers. In a non-limiting example, the value of N is in range of 6-2 and value of X is in range of 5-1. The downshifting of the gear in the context of the preset invention is shifting from a high gear to a low gear. Therefore, the ISS unit 102b will disable the ISS system 104 when the rider shifts from a high gear to a low gear in a pressed state of clutch lever/pedal. In case the rider shifts from the low gear to the high gear in clutch engaged position, the ISS unit 102b will not disable the ISS system 104 to re-start the internal combustion engine 106. In a non-limiting example, if the clutch is in engaged state and the rider shifts from a 5th gear to a 4th gear or a 4th fear to a 2nd gear or a 2nd gear to 1st gear, the ISS unit 102b will disable the ISS system 104 to restart the internal combustion engine 106 of the vehicle 100. However, in a pressed state of clutch lever/pedal, the rider shifts from a low gear to high gear, the ISS system 104 will not be disabled. It is to be understood that in pressed state of clutch lever/pedal, the power from the internal combustion engine 106 is not transmitted to the transmission system of the vehicle 100.
[029] In an embodiment, the ISS unit 102b is configured to receive inputs from one or more first devices 108, one or more second devices 110 and one or more third devices 111. The one or more first devices 108 are configured to detect distance travelled by the vehicle 100. The one or more second devices 110 are configured to detect temperature of the internal combustion engine 106 of the vehicle 100. The one or more third devices 111 are configured to detect idle running time of the internal combustion engine 106 of the vehicle 100. In one non-limiting example, the one or more first devices 108 include odometer. In a non-limiting example, the one or more second devices 110 include temperature sensors. In a non-limiting example, the one or more third devices 111 include sensors such as Hall sensors.
[030] In an embodiment, the ISS unit 102b is configured to receive an input from one or more clutch position and clutch pressure sensors 112 and one or more gear position sensors 114 for determination of satisfaction of the second set of pre-defined conditions.
[031] Figure 2A and Figure 2B illustrate a method 200 for controlling an ISS system 104 of a vehicle 100, in accordance with an embodiment of the present invention.
[032] As shown, at step 201, the method 200 comprises a step of detecting a state and a mode of the vehicle 100. The step 201 of detecting is performed by a detection unit 102a of a control unit 102. At step 202, the method determines whether the detected state of the vehicle 100 is a non-running state and the mode of the vehicle 100 is an economic mode. The step 202 is performed by the detection unit 102a of the control unit 102. In case the detected state of the vehicle 100 is a non-running state and the vehicle 100 is in an economic mode, the method moves to step 203, else 202. At step 203, the method 200 determines if the first set of pre-defined conditions is satisfied. In case the first set of pre-defined conditions are satisfied, the method moves to step 204, else step 203. At step 204, the ISS system 104 is enabled. At step 205 or 206, the method determines if either one of a second set of pre-defined conditions is satisfied. At step 205, the method determines if the clutch/lever pedal is being pressed by the rider of the vehicle 100. If yes, the method moves to step 207, else step 205. At step 206, the method determines if the gear is being downshifted in the pressed state of the clutch/lever pedal. If yes, the method moves to step 207, else step 205.
[033] In an embodiment, the first set of pre-defined conditions comprises a distance travelled by the vehicle 100 being greater than a pre-defined distance, a temperature of the internal combustion engine 106 being greater than a pre-defined temperature and an idling time of the internal combustion engine 106 being greater than a pre-defined time. It is to be understood that satisfaction of all these conditions is required for the ISS unit 102b to enable the ISS system 104 to cut off the internal combustion engine 106 of the vehicle 100. In a non-limiting example, the pre-defined distance is 500 meter. In a non-limiting example, the pre-defined time is 5 seconds. In a non-limiting example, the pre-defined temperature of the internal combustion engine 106 is 75 degrees. However, such conditions should not be considered as limiting and the other set of pre-defined conditions may also be defined in the control unit 102 for enabling the ISS system 104.
[034] In an embodiment, the downshifting of the gear comprises down shifting from Nth gear to Xth gear wherein N>X and both N and X are positive integers. In a non-limiting example, the value of N is in range of 6-2 and value of X is in range of 5-1. The downshifting of the gear in the context of the preset invention is shifting from a high gear to a low gear. Therefore, the ISS unit 102b will disable the ISS system 104 when the rider shifts from a high gear to a low gear in a pressed state of clutch lever/pedal. In case the rider shifts from the low gear to the high gear in clutch engaged position, the ISS unit 102b will not disable the ISS system 104 to re-start the internal combustion engine 106. In a non-limiting example, if the clutch is in engaged state and the rider shifts from a 5th gear to a 4th gear or a 4th fear to a 2nd gear or a 2nd gear to 1st gear, the ISS unit 102b will disable the ISS system 104 to restart the internal combustion engine 106 of the vehicle 100. However, in a pressed state of clutch lever/pedal, the rider shifts from a low gear to high gear, the ISS system 104 will not be disabled. It is to be understood that in pressed state of clutch lever/pedal, the power from the internal combustion engine 106 is not transmitted to the transmission system of the vehicle 100.
[035] In an embodiment, the ISS unit 102b is configured to receive inputs from one or more first devices 108, one or more second devices 110 and one or more third devices 111. The one or more first devices 108 are configured to detect distance travelled by the vehicle 100. The one or more second devices 110 are configured to detect temperature of the internal combustion engine 106 of the vehicle 100. The one or more third devices 111 are configured to detect idle running time of the internal combustion engine 106 of the vehicle 100. In one non-limiting example, the one or more first devices 108 include odometer. In a non-limiting example, the one or more second devices 110 include temperature sensors. In a non-limiting example, the one or more third devices 111 include sensors such as Hall sensors.
[036] In an embodiment, the ISS unit 102b is configured to receive an input from one or more clutch position and clutch pressure sensors 112 and one or more gear position sensors 114 for determination of satisfaction of the second set of pre-defined conditions.
[037] It is to be understood that typical hardware configuration of the control unit 102 disclosed in the present invention can include a set of instructions that can be executed to cause the control unit 102 to perform the above-disclosed method.
[038] The control unit 102 may include a processor which may be a central processing unit (CPU), a graphics processing unit (GPU), or both. The processor may be one or more general processors, digital signal processors, application specific integrated circuits, field programmable gate arrays, servers, networks, digital circuits, analog circuits, combinations thereof, or other now known or later developed devices for analysing and processing data. The processor may implement a software program, such as code generated manually i.e. programmed.
[039] The control unit 102 may comprise a storage unit. The storage unit may include a memory. The memory may be a main memory, a static memory, or a dynamic memory. The memory may include, but is not limited to computer readable storage media such as various types of volatile and non-volatile storage media, including but not limited to random access memory, read-only memory, programmable read-only memory, electrically programmable read-only memory, electrically erasable read-only memory, flash memory, magnetic tape or disk, optical media and the like. The memory is operable to store instructions executable by the processor. The functions, acts or tasks illustrated in the figures or described may be performed by the programmed processor executing the instructions stored in the memory.
[040] The control unit 102 may also include a disk or optical drive unit. The disk drive unit may include a computer-readable medium in which one or more sets of instructions, e.g. software, can be embedded. Further, the instructions may embody one or more of the methods or logic as described. In a particular example, the instructions may reside completely, or at least partially, within the memory or within the processor during execution by the control unit 102. The memory and the processor also may include computer-readable media as discussed above. The present invention contemplates a computer-readable medium that includes instructions or receives and executes instructions responsive to a propagated signal so that a device connected to a network can communicate data over the network. Further, the instructions may be transmitted or received over the network. The network includes wireless networks, Ethernet AVB networks, or combinations thereof. The wireless network may be a cellular telephone network. Further, the network may be a public network, such as the Internet, a private network, such as an intranet, or combinations thereof, and may utilize a variety of networking protocols now available or later developed.
[041] The control unit 102 may accept incoming content and send content to connected components via a communication channel such as Controller Area Network (CAN), Local Interconnect Network (LIN) and Bluetooth.
[042] The claimed features/method steps of the present invention as discussed above are not routine, conventional, or well understood in the art, as the claimed features/steps enable the following solutions to the existing problems in conventional technologies. Specifically, the technical problem of inefficient/inconvenient controlling of the ISS system due to different driving patterns is solved by present invention.
[043] In the present invention, the ISS system is independent of brake input which makes it convenient for riders who drive the vehicle by pressing half brakes.
[044] The present invention is also convenient for the rider who stops the vehicle by pressing and holding the clutch lever. In the present invention, the ISS system can be enabled by simply downshifting the gear. In other words, the rider of the vehicle is not required to release the clutch and the press the clutch again for disabling the ISS system. The present invention is, therefore, convenient to the rider as well as do not require multiple operations of the clutch lever, which increases the life of the clutch lever as well as costs associated with replacement and serviceability of the clutch lever.
[045] The present invention does not use throttle blip as an input to disable the ISS system owing to which the drainage of battery is less, which increases the life of the battery as well as costs associated with replacement and serviceability of the battery.
[046] In the present invention, inputs to enable the ISS system as well as disable the ISS system are simple and reliable and failed restart of the ISS system are avoided.
[047] The present invention is simple and reliable and is effective for riders having different riding patterns.
[048] The present invention helps to turn off the engine considering various driving patterns of multiple users and hence improves fuel efficiency. Also, as parameters such as engine temperature are taken into consideration for enabling the ISS system, knocking is avoided.
[049] While the present invention has been described with respect to certain embodiments, it will be apparent to those skilled in the art that various changes and modification may be made without departing from the scope of the invention as defined in the following claims.

REFERENCE NUMERALS
100-vehicle
102- control unit
102a- detection unit
102b-ISS unit
104-ISS system
106- internal combustion engine
108- first devices
110-second devices
111-third devices
112-Clutch Position/Clutch pressure Sensors
114- Gear position sensors


, Claims:WE CLAIM:
1. A method for controlling an Idle Start Stop (ISS) System (104) of a vehicle (100), the method comprising:
detecting, by a detection unit (102a) of a control unit (102), a state and a mode of the vehicle (100);
enabling, by an ISS unit (102b) of a control unit (102), upon detection of the state of the vehicle (100) being a non-running state, mode of the vehicle (100) being an economic mode and satisfaction of a first set of predefined conditions, the ISS system (104) to cut off an internal combustion engine (106) of the vehicle (100);
disabling, by the ISS unit (102b), upon satisfaction of a second set of pre-defined conditions, the ISS system (104) to re-start the internal combustion engine (106) of the vehicle (100), the second set of pre-defined conditions being one of:
pressing of a clutch lever/pedal by a rider of the vehicle (100); and
downshifting a gear of the vehicle (100) in a pressed state of the clutch lever/pedal.

2. The method as claimed in claim 1, wherein the first set of pre-defined conditions comprise:
a distance travelled by the vehicle (100) being greater than a pre-defined distance;
a temperature of the engine (106) being greater than a pre-defined temperature; and
an idling time of the internal combustion engine (106) after travelling the first pre-defined distance being greater than a pre-defined time.

3. The method as claimed in claim 1, wherein downshifting of the gear comprises downshifting from Nth gear to Xth gear wherein N>X and N, X being positive integers.

4. The method as claimed in claim 2, wherein the pre-defined distance being 500 meter.

5. The method as claimed in claim 2, wherein the pre-defined time being 5 seconds.

6. The method as claimed in claim 1, wherein the ISS unit (102b) being configured to receive inputs from one or more first devices (108), one or more second devices (110) and one or more third devices (111) for determination of the satisfaction of the first set of pre-defined conditions, the one or more first devices (108) configured to detect a distance travelled by the vehicle (100), the one or more second device (110) configured to detect temperature of the internal combustion engine (106) of the vehicle (100) and the one or more third devices (111) configured to detect idle running time of the internal combustion engine (106) of the vehicle (100) .

7. The method as claimed in claim 1, wherein the ISS unit (102b) of the control unit (102) is configured to receive an input from one or more clutch position and clutch pressure sensors (112) and one or more gear position sensors (114) for determination of satisfaction of the second set of pre-defined conditions.

8. A control unit (102) for controlling an Idle Start Stop (ISS) System (104) of a vehicle (100), the control unit (102) comprising:
- a detection unit (102a), the detection unit(102a) configured to detect a state and a mode of the vehicle (100);
- an ISS unit (102b) in communication with detection unit (102a) and the ISS system (104), the ISS control unit (102b) configured to:
enable, upon detection of the state of the vehicle (100) being a non-running state, the mode of the vehicle (100) being an economic mode and satisfaction of a first set of predefined conditions, the ISS system (104) to cut off an internal combustion engine (106) of the vehicle (100); and
disable, upon satisfaction of a second set of pre-defined conditions, the ISS system (104) to start the internal combustion engine (106) of the vehicle (100), the second set of pre-defined conditions being one of:
pressing of a clutch lever/pedal by a rider of the vehicle (100); and
downshifting a gear of the vehicle (100) in a pressed state of the clutch lever/pedal.

9. The control unit (102) as claimed in claim 8, wherein the first set of pre-defined conditions comprises:
a distance travelled by the vehicle (100) being greater than a pre-defined distance,
a temperature of the internal combustion engine (106) being greater than a pre-defined temperature; and
an idling time of the vehicle (100) after travelling the first pre-defined distance being greater than a pre-defined time.

10. The control unit (102) as claimed in claim 8, wherein downshifting of the gear comprises downshifting from Nth gear to Xth gear wherein N>X and N, X being positive integers.

11. The control unit (102) as claimed in claim 9, wherein the pre-defined distance being 500 meter.

12. The control unit (102) as claimed in claim 9, wherein the pre-defined time being 5 seconds.

13. The control unit (102) as claimed in claim 8, wherein the ISS unit (102b) being configured to receive inputs from one or more first devices (108), one or more second devices (110) and one or more third devices (111) for determination of the satisfaction of the first set of pre-defined conditions, the one or more first devices (108) configured to detect a distance travelled by the vehicle (100), the one or more second devices (110) configured to detect temperature of the internal combustion engine (106) of the vehicle (100) and the one or more third devices (111) configured to detect idle running time of the internal combustion engine (106) of the vehicle (100) . .

14. The control unit (102) as claimed in claim 8, wherein the ISS unit (102b) is configured to receive input from one or more clutch position and clutch pressure sensors (112) and one or more gear position sensors (114) for determination of satisfaction of the second set of pre-defined conditions.

15. A vehicle (100) comprising:
an Integrated Start Stop (ISS) system (104);
a control unit (102) communicatively coupled to the ISS system (104), the control unit comprising:
a detection unit (102a), the detection unit(102a) configured to detect a state and a mode of the vehicle (100);
an ISS unit (102b) in communication with detection unit (102a) and the ISS system (104), the ISS unit (102b) configured to:
enable, upon detection of the state of the vehicle (100) being a non-running state, mode of the vehicle (100) being an economic mode and satisfaction of a first set of predefined conditions, the ISS system (104) to cut off an internal combustion engine (106) of the vehicle (100); and
disable, upon satisfaction of a second set of pre-defined conditions, the ISS system (104) to start the internal combustion engine (106) of the vehicle (100) the second set of pre-defined conditions being one of: pressing of a clutch lever/pedal by a rider of the vehicle (100); and downshifting a gear of the vehicle (100) in a pressed state of the clutch lever/pedal.

16. The vehicle (100) as claimed in claim 15, wherein the first set of pre-defined conditions comprises:
a distance travelled by the vehicle (100) being greater than a pre-defined distance,
a temperature of the internal combustion engine (106) being greater than a pre-defined temperature; and
an idling time of the vehicle (100) after travelling the first pre-defined distance being greater than a pre-defined time.

17. The vehicle (100) as claimed in claim 15, wherein downshifting of the gear comprises downshifting from Nth gear to Xth gear wherein N>X and N, X being positive integers.

18. The vehicle (100) as claimed in claim 16, wherein the pre-defined distance being 500 meter.

19. The vehicle (100) as claimed in claim 16, wherein the pre-defined time being 5 seconds.

20. The vehicle (100) as claimed in claim 15, wherein the ISS unit (102b) being configured to receive inputs from one or more first devices (108), one or more second devices (110) and one or more third devices (111) for determination of the satisfaction of the first set of pre-defined conditions, the one or more first devices (108) configured to detect a distance travelled by the vehicle (100), the one or more second devices (110) configured to detect temperature of the internal combustion engine (106) of the vehicle (100) and the one or more third devices (111) configured to detect idle running time of the internal combustion engine (106) of the vehicle (100).

21. The vehicle as claimed in claim 15, wherein the ISS unit (102b) is configured to receive input from one or more clutch position and clutch pressure sensors (112) and one or more gear position sensors (114) for determination of satisfaction of the second set of pre-defined conditions.

Dated this 02nd day of January 2024

TVS MOTOR COMPANY LIMITED
By their Agent & Attorney

(Nikhil Ranjan)
of Khaitan & Co
Reg No IN/PA-1471

Documents

Application Documents

# Name Date
1 202441000303-STATEMENT OF UNDERTAKING (FORM 3) [02-01-2024(online)].pdf 2024-01-02
2 202441000303-REQUEST FOR EXAMINATION (FORM-18) [02-01-2024(online)].pdf 2024-01-02
3 202441000303-PROOF OF RIGHT [02-01-2024(online)].pdf 2024-01-02
4 202441000303-POWER OF AUTHORITY [02-01-2024(online)].pdf 2024-01-02
5 202441000303-FORM 18 [02-01-2024(online)].pdf 2024-01-02
6 202441000303-FORM 1 [02-01-2024(online)].pdf 2024-01-02
7 202441000303-FIGURE OF ABSTRACT [02-01-2024(online)].pdf 2024-01-02
8 202441000303-DRAWINGS [02-01-2024(online)].pdf 2024-01-02
9 202441000303-DECLARATION OF INVENTORSHIP (FORM 5) [02-01-2024(online)].pdf 2024-01-02
10 202441000303-COMPLETE SPECIFICATION [02-01-2024(online)].pdf 2024-01-02