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EP-4483076-B1 - A CONTROLLER AND METHOD FOR ADAPTING AGING OF A QUICK SHIFT SENSOR IN A VEHICLE

EP4483076B1EP 4483076 B1EP4483076 B1EP 4483076B1EP-4483076-B1

Inventors

  • SABU, Cheradiyaniyil Abhijith
  • DUSI SETLUR, Srikanth
  • KUMAR, HEMANT
  • KUSHAL, Agarwal

Dates

Publication Date
20260513
Application Date
20230210

Claims (10)

  1. A controller (110) to adapt aging of a quick shift sensor (102) in a vehicle, said quick shift sensor (102) mounted on any one of a gear shift pedal, a shift shaft of a gearbox and linkages therebetween, said controller (110) configured to receive input signal from said quick shift sensor (102), compare an actual value detected from said input signal with threshold value for any one of upshift request and downshift request, and trigger quick shift functionality, said quick shift functionality corresponds to modulation of engine torque by said controller (110) without disengaging a clutch between an engine and said gearbox of said vehicle, characterized in that, said controller (110) configured to, detect no load condition of said quick shift sensor (102), and measure said actual value from said quick shift sensor (102) upon detection of said no load condition, and calculate deviation of said actual value from a reference value of said quick shift sensor (102), and adapt said reference value and said threshold value as per said calculated deviation.
  2. The controller (110) as claimed in claim 1, wherein said no load condition comprises a post drive cycle of said vehicle, wherein said post drive cycle is detected from a key OFF event of said vehicle.
  3. The controller (110) as claimed in claim 2, wherein said no load condition further comprises at least one selected from a group comprising a gear position at a neutral position, a side stand/main stand status as activated and a zero vehicle speed, wherein said gear position is detected by a gear position sensor (104), said stand status is detected by a stand switch sensor (106) and said vehicle speed is detected from a speed sensor (108).
  4. The controller (110) as claimed in claim 1, wherein plurality of said actual values are processed together before adaptation of said reference value and said threshold value, wherein said plurality of actual values are stored in a memory element (112) of said controller (110).
  5. The controller (110) as claimed in claim 1 is at least one of an internal control unit and an external control unit, wherein said internal control unit is any one of an Engine Management System (EMS) control unit and an Engine control Unit (ECU), and wherein said external control unit is a control unit externally interfaced with said controller (110).
  6. A method for adapting to aging of a quick shift sensor (102) in a vehicle, said vehicle comprises said quick shift sensor (102) mounted on any one of a gear shift pedal, a shift shaft of a gearbox and linkages therebetween, and a controller (110) configured to receive input signal from said quick shift sensor (102), compare an actual value detected from said input signal with threshold value for any one of upshift request and downshift request, and trigger quick shift functionality, said quick shift functionality corresponds to modulation of engine torque by said controller (110) without disengaging a clutch between an engine and said gearbox of said vehicle, characterized by, said method comprising the steps of: detecting no load condition of said quick shift sensor (102), and measuring said actual value from said quick shift sensor (102) upon detecting said no load condition and calculating deviation of said actual value from a reference value of said quick shift sensor (102), and adapt said reference value and said threshold value as per said calculated deviation.
  7. The method as claimed in claim 6, wherein said no load condition comprises a post drive cycle of said vehicle, wherein detecting said post drive cycle is performed by monitoring a key OFF event of said vehicle.
  8. The method as claimed in claim 7, wherein said no load condition further comprises at least one selected from a group comprising a gear position at a neutral position, a side stand/main stand status as activated and a zero vehicle speed, wherein said gear position is detected by a gear position sensor (104), said stand status is detected by a stand switch sensor (106) and said vehicle speed is detected from a speed sensor (108).
  9. The method as claimed in claim 6, comprises processing plurality of said actual values together before adapting said reference value and said threshold value, wherein said plurality of actual values are stored in a memory element (112) of said controller (110).
  10. The method as claimed in claim 6 is performed by at least one of an internal control unit and an external control unit, wherein said internal control unit is any one of an Engine Management System (EMS) control unit and an Engine control Unit (ECU), and wherein said external control unit is a control unit externally interfaced with said controller (110).

Description

Field of the invention: The present invention relates to a controller and a method for adapting aging of a quick shift sensor in a vehicle. Background of the invention: A patent literature IN 202017010595 discloses a gear-position learning device for automatic clutch transmission. A gear-position learning device for an automatic clutch transmission includes a transmission configured to be shifted by an operation of a driver of a vehicle, a clutch device disposed in a transmission path between the transmission and an engine and configured to be connected and disconnected by actuation of a clutch actuator, a controller configured to control connection and disconnection of the clutch device performed by the clutch actuator, a shift drum configured to rotate according to a shift operation that the driver performs on a shift operator and switch the shift stage of the transmission, and a rotational position defining mechanism configured to define a rotational position of the shift drum, wherein the controller has a learning mode for learning a rotation angle of the shift drum and is configured to control connection and disconnection of the clutch device during the learning mode such that the shift drum is at a rotational position determined by the rotational position defining mechanism Document EP3800381A1 shows an example of a controller. Brief description of the accompanying drawings: An embodiment of the invention is described with reference to the following accompanying drawing, Fig. 1 illustrates a block diagram of a controller to adapt aging of a quick shift sensor, according to an embodiment of the present invention;Fig. 2 illustrates a basic graphs of adapting the quick shift sensor to the actual values, according to an embodiment of the present invention, andFig. 3 illustrates a method for adapting aging of the quick shift sensor, according to the present invention. Detailed description of the embodiments: Fig. 1 illustrates a block diagram of a controller to adapt aging of a quick shift sensor, according to an embodiment of the present invention. The quick shift sensor 102 mounted on any one of a gear shift pedal, a shift shaft of a gearbox and linkages therebetween. The controller 110 configured to receive input signal from the quick shift sensor 102, compare an actual value detected from the input signal with threshold value for any one of upshift request and downshift request, and trigger quick shift functionality. The quick shift functionality corresponds to modulation of engine torque by the controller 110 without disengaging a clutch between an engine and the gearbox of the vehicle. The controller 110, characterized in that, configured to detect no load condition of the quick shift sensor 102, and measure the actual value from the quick shift sensor 102 upon detection of the no load condition, and calculate deviation of the actual value from a reference value of the quick shift sensor 102. The controller 110 then adapts the reference value and the threshold value as per the calculated deviation. The actual value corresponds to the present value detected after every use of the quick shift sensor 102. The modulation of engine torque is performed by the controller 110 through at least one of an ignition control using the spark plug system, a throttle control using the Electronic Throttle Control (ETC) system and a fuel injection control using the fuel injection system. The term aging corresponds to wear and tear or regular use due to which the quick shift sensor 102 undergoes deterioration in detecting corresponding parameter. In accordance to the present invention, the controller 110 comprises the memory element 112 such as Random Access Memory (RAM) and/or Read Only Memory (ROM), Analog-to-Digital Converter (ADC) and a Digital-to-Analog Convertor (DAC), clocks, timers and at least one processor (capable of implementing machine learning) connected with each other and to other components through communication bus channels. The memory element 112 is prestored with logics or instructions or programs or applications or modules and threshold values, reference values and conditions which is/are accessed by the processor as per the defined routines. The reference value corresponds to value of the quick shift sensor 102 at rest or default state. The internal components of the controller 110 are not explained for being state of the art, and the same must not be understood in a limiting manner. The controller 110 may also comprise communication units to communicate with the cloud server through wireless or wired means such as Global System for Mobile Communications (GSM), 3G, 4G, 5G, Wi-Fi, Bluetooth, Ethernet, serial networks, and the like. In accordance to an embodiment of the present invention, the controller 110 is at least one of an internal control unit and an external control unit. The internal control unit is any one of an Engine Management System (EMS) control unit and an Engine control Unit (ECU). T