WO2024105698A1

WO2024105698A1 - A system and method for remote calibration of a motor in a vehicle

Info

Publication number: WO2024105698A1
Application number: PCT/IN2023/051063
Authority: WO
Inventors: Thirunavukkarasu SENTHIL; Balaji Sreenivasan; Datta Rajaram Sagare
Original assignee: Tvs Motor Company Limited
Priority date: 2022-11-18
Filing date: 2023-11-17
Publication date: 2024-05-23

Abstract

The present invention relates to a system (100) and a method (200) for remote calibration of a motor (106) in a vehicle (102).The present invention aims at reducing time and complexity involved in calibration of a motor (106) disposed in the vehicle (102). The type of the motor (106) is identified based on configuration of a coupler (110) coupled with the motor (106) and movement of the shaft of the motor (106). On identification of the type of motor (106), the control unit (104) is configured to detect one or more parameters of the motor (106) which are required to be calibrated and further receive inputs from the remote server (112) for calibration of the one or more parameters of the motor (106). The control unit (104) is flashed with updated configurations received from the remote server (112).

Description

TITLE

A SYSTEM AND METHOD FOR REMOTE CALIBRATION OF A MOTOR IN A VEHICLE

FIELD OF THE INVENTION

[001] The present invention relates to a motor in a vehicle. More particularly, the present invention relates to a system and a method for remote calibration of the motor in the vehicle.

BACKGROUND OF THE INVENTION

[002] In hybrid or electric vehicles, motor(s) are used to propel the vehicle. For different vehicles, different types of motors are used. The working of the motor is controlled by a control unit disposed in the vehicle. For different type of motors, the control unit is required to be configured differently. In an assembly line, when multiple vehicles with different types of motors are received, it becomes difficult and time consuming to identify type of the motor in the vehicle and install a control unit which is specifically configured for the identified type of motor.

[003] In view thereof, there is a need-felt to overcome at least the above-mentioned disadvantages of the prior art.

SUMMARY OF THE INVENTION

[004] In one aspect of the present invention, a system for remote calibration of a motor in a vehicle is disclosed. The system comprises a motor, a plurality of couplers, a control unit and a remote server. The motor and the control unit are disposed in the vehicle. The motor is configured to propel the vehicle. The control unit is configured to control the motor. The motor is selected from a group of different type of motors. Each coupler from the plurality of couplers has a different configuration and is adapted to couple with one type of motor selected from the group of different types of motors. The coupler is mechanically coupled to the motor and is communicatively coupled to the control unit. On being coupled with the motor, the configuration of the coupler is transmitted to the control unit.

[005] The control unit, via one or more position sensors, is configured to detect movement of a shaft of the coupled motor when the coupled motor is supplied with an AC pulse, a DC pulse, a trapezoidal pulse and/or a sinusoidal pulse. Based on a movement of the shaft of the motor and the coupler configuration, the control unit is further configured to detect the type of the motor disposed in the vehicle. A first set of look up table indicating relation between the movement of the shaft and the type of motor is stored in the control unit.

[006] On detection of the type of motor disposed in the vehicle, the control unit is further configured to receive values of one or more parameters corresponding to the identified type of the motor from a remote server.

[007] On receiving the values of the one or more parameters corresponding to identified type of motor, the control unit is further configured to remotely calibrate the one or more parameters of the identified motor type.

[008] The remote server is communicatively coupled to the control unit. The remote server comprises a second set of look up tables which comprises ideal values of the one or more parameters of the identified type of motor. On communication with the remote server, the control unit transmits information indicative of the identified type of motor to the remote server and the remote server transmits the ideal values of the one or more parameters to the control unit. On receiving the ideal values of the parameters to be calibrated, the control unit calibrates the motor. The second set of look up tables is stored in the server. [009] In an embodiment, the control unit is configured to be flashed with updated configurations, as and when available, in the remote server for efficient working of the control unit.

[010] In an embodiment, the one or more parameters of the motor comprises pole pairs, resistance of phase, D axis inductance, Q axis inductance, back EMF, motor inertia, friction constant, position offset, motor torque constant, mechanical speed of a rotor, D axis current, Q axis current, rotor flux linkage and speed sensing.

[011] In an embodiment, the group of different type of motors includes a Permanent Magnet Synchronous Motor (PMSM), Brushless Direct Current Motor (BLDC), an Induction Motor and a Direct Current (DC) motor.

[012] In an embodiment, the first set of look up tables includes at least a first table, a second table, a third table and a fourth table. The first table indicates the type of the motor based on the movement of the shaft when the motor is supplied with the AC Pulse. The second table indicates the type of the motor based on the movement of the shaft when the motor is supplied with the DC Pulse. The third table indicates the type of the motor based on the movement of the shaft, current drawn by the motor and speed of the motor when the motor is supplied with the sinusoidal pulse. The fourth table indicates the type of motor based on the movement of the shaft, current drawn by the motor and the speed of the motor when the motor is supplied with the trapezoidal pulse. [013] In an embodiment, the control unit is a listed control unit. The listed control unit is authorized to communicate with the remote server. In case the control unit in the vehicle is a non-listed control unit, it will not be able to communicate with the remote server.

[014] In an embodiment, a Vehicle Identification Number (VIN) is transmitted to the remote server which flashes the control unit with updated configurations available in the remote server. [015] In another aspect of the present invention, a method for remote calibration of a motor in a vehicle is disclosed. The method comprises a step of detecting movement of a shaft of the motor coupled with a coupler and supplied with an AC pulse, a DC pulse, a trapezoidal pulse and/or a sinusoidal pulse. The motor is disposed in the vehicle and is selected from a group of different types of motors. The motor couples with a coupler selected from a group of couplers having different configurations. The configuration of the coupler and the movement of the shaft identifies the type of the motor disposed in the vehicle. The movement of the shaft is detected by one or more position sensors. The one or more position sensors are positioned on the shaft of the motor and are communicatively coupled to the control unit.

[016] The method further comprises a step of identifying the type of motor disposed in the vehicle. The step of identifying the motor is performed by the control unit. The type of motor is identified based on configuration of the coupler and the movement of the shaft. A first set of look up tables indicating relation between the movement of the shaft and the type of motor is stored in the control unit.

[017] On identification of the type of motor, the method further comprises a step of transmitting information indicative of the type of motor to a remote server and receiving ideal values from the remote server for one or more parameters of the motor which are to be calibrated.

[018] On receiving the ideal values from the remote server, the method further comprises a step of remotely calibrating the one or more parameters of the motor. It is to be understood that the remote server is communicatively coupled to the control unit. The remote server comprises a second set of look up table which comprises the ideal values of the one or more parameters of the motor to be calibrated. The second set of look up tables is stored in the remote server. [019] In an embodiment, the method further comprises a step of transmitting a vehicle identification number (VIN) to the remote server. On receiving the VIN, the remote server flashes the control unit with updated configuration available in the remote server. In an embodiment, a third set of look up tables is stored in the remote server. The third set of look up tables comprises VIN and updated configurations available for the VIN. In an embodiment, the VIN is stored in the control unit. In an embodiment, the control unit is configured to retrieve the VIN from other components of the vehicle.

BRIEF DESCRIPTION OF THE DRAWINGS

[020] 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 is a block diagram illustrating a system for remote calibration of a motor in a vehicle, in accordance with an embodiment of the present invention.

Figure 2 is a flow chart illustrating a method for remote calibration of a motor in a vehicle, in accordance with an embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

[021] Various features and embodiments of the present invention here will be discernible from the following further description thereof, set out hereunder.

[022] One object of the present invention is to reduce time and complexity involved in calibration of a motor disposed in the vehicle. Another object of the present invention is to eliminate necessity of having multiple systems for independently flashing the control unit. Yet another object of the present invention is to save on development costs as updated configurations for the control unit can be easily fetched from a remote server instead of independently developing the same for each control unit. Yet another object of the present invention is ease of serviceability as the control unit receives inputs from the remote server for calibration of the motor as well as for updation of the control unit. Yet another object of the present invention is to reduce the manufacturing cost/assembly line cost owing to remote calibration of motor. To further clarify the objects, advantages and features of the present invention, a more particular description is rendered which should not be construed as limiting of its scope.

[023] Figure 1 is a block diagram illustrating a system 100 for remote calibration of a motor 106 in a vehicle 102, 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 a motor for propelling the vehicle and a control unit configured for controlling the motor such as, not being limited to, bicycles, scooters, motorcycles, rickshaws, cars, trucks, etc.

[025] As shown in Figure 1 , the vehicle 102 comprises a control unit 104 and a motor 106. The motor 106 is configured to propel the vehicle 102 and the control unit 104 is configured to control the motor 106. It is to be understood that the motor 106 has one or more parameters which are required to be calibrated. In an assembly line or a production line, vehicles 102 having different type of motors 106 are received. On receiving the vehicle 102, the first step is to identify a type of motor 106 installed in the vehicle 102. The motors 106 can be of different types such as, not being limited to, Permanent Magnet Synchronous Motor (PMSM), Brushless Direct Current Motor (BLDC), Induction Motor and Direct Current (DC) motor. In order to determine the type of motor 106, a shaft of the motor 106 is coupled with a coupler 110 and supplied with an AC Pulse, a DC Pulse, a Trapezoidal Pulse and/or a Sinusoidal Pulse. The coupler 110 is selected from a plurality of couplers having different configurations. The configuration of the coupler 110 determines the type of the motor 106 with which it can be coupled. The coupler 110 is mechanically coupled to the shaft of the motor 106. The coupler 110 is also communicatively coupled to the control unit 104 such that the configuration of the coupler 110 is communicated to the control unit 104. In an embodiment, visual inspection of the coupler by a user provides inputs to detect the type of the motor. On being supplied with the AC pulse, the DC pulse, the trapezoidal pulse and/or sinusoidal pulse, the movement of the shaft of the coupled motor 106 is also communicated to the control unit 104. The movement of the shaft of the motor 106 is detected by one or more positions sensors 118 located on the shaft. The one or more position sensors 118 are communicatively coupled to the control unit 104 and transmit information in relation to the movement of the shaft of the motor 106 to the control unit 104. It is to be understood that the movement of the shaft includes zero movement or no movement. Also, the movement of the shaft indicates information on current being drawn by the motor 106 and the speed of rotation of the shaft of the motor 106.

[026] The control unit 104 comprises a first set of look up tables. The first set of look up tables is stored in the control unit 104. The first set of look up tables indicates relation between the movement of the shaft and the type of motor. Based on the configuration of the coupler 110 coupled with the motor 106 and the movement of the shaft, the type of the motor 106 disposed in the vehicle 102 is determined. The control unit 104 refers the first set of look up tables for determining the type of motor. On detection of the type of motor 106 installed in the vehicle, the control unit 104 communicates with a remote server 112. The remote server 112 is communicatively coupled to the control unit 104 and comprises a second set of look up tables. The second set of look up tables comprises ideal values of one or more parameters of the identified type of motor 106, which are to be calibrated. Based on the identified type of motor 106, the remote server

112 transmits the ideal values of the one or more parameters to the control unit 104. On receiving the transmitted ideal values of the one or more parameters, the control unit 104 calibrates the motor 106 disposed in the vehicle 102.

[027] In an embodiment, a Vehicle Identification Number (VIN) is also transmitted to the remote server 112. On receiving the VIN, the remote server 112 checks for updated configurations, if any, available for the control unit 104. In case an updated configuration is available, the control unit 104 is flashed with the updated configuration. It is to be understood that once the remote server 112 receives the VIN of the vehicle 102, the control unit 104 will be flashed with updated configurations as and when such updated configurations are available in the remote server 112. In an embodiment, a third set of look up tables is stored in the remote server. The third set of look up tables comprises VIN and updated configurations available for the VIN. In an embodiment, the VIN is stored in the control unit. In an embodiment, the control unit is configured to retrieve the VIN from other components of the vehicle.

[028] In an embodiment, the one or more parameters of the motor 106 comprises pole pairs, resistance of phase, D axis inductance, Q axis inductance, back EMF, motor inertia, friction constant, position offset, motor torque constant, mechanical speed of a rotor, D axis current, Q axis current, rotor flux linkage and/or speed sensing.

[029] In an embodiment, the first set of look up tables comprises at least a first table, a second table, a third table and a fourth table. The first table indicates the type of the motor 106 based on the movement of the shaft when the motor 106 is supplied with the AC Pulse. The second table indicates the type of the motor 106 based on the movement of the shaft when the motor 106 is supplied with the DC Pulse. The third table indicates the type of the motor 106 based on the movement of the shaft, current drawn by the motor 106 and speed of the shaft of the motor 106 when the motor 106 is supplied with the sinusoidal pulse. The fourth table indicates the type of motor 106 based on the movement of the shaft, current drawn by the motor 106 and speed of the shaft of the motor 106 when the motor 106 is supplied with the trapezoidal pulse.

[030] In an embodiment, the motor 106 is identified as the PMSM motor on satisfaction of a first pre-defined criteria. The first pre-defined criteria comprise movement of the shaft from a first initial position to a first pre-defined final position when the motor 106 is supplied with the AC pulse. The first initial position and the first pre-defined final position are pre-set by the manufacturer of the vehicle 102 and are available in the first set of look up tables. The first pre-defined criteria further comprise the movement of the shaft from the first initial position to a first intermediate position when the motor 106 is supplied with the DC pulse. The first intermediate position is between the first initial position and the first pre-defined final position. The first intermediate position of the shaft is pre-set by the manufacturer of the vehicle 102 and is available in the first set of look up tables. The first pre-defined criteria further comprise the movement of the shaft from the first initial position to the first pre-defined final position, current drawn by the motor 106 being less than a first pre-defined current and the speed of the shaft of the motor 106 being equal to a first pre-defined speed when the motor 106 is supplied with the sinusoidal pulse. The value of the first pre-defined current and the first pre-defined speed are pre-set by the manufacturer of the vehicle 102 and are available in the first set of look up tables. The first pre-defined criteria further comprise the movement of the shaft from the first initial position to the first pre-defined final position, current drawn by the motor 106 being greater than the first pre-defined current and the speed of the shaft of the motor being non-linear when the motor 106 is supplied with the trapezoidal pulse. The non-linear speed of the shaft of the motor 106 is determined by the control unit 104 in conjunction with input received from the position sensors disposed on the shaft of the motor. [031 ] In an embodiment, the motor 106 is identified as the BLDC motor on satisfaction of second pre-defined criteria. The second set of pre-defined criteria comprise the movement of the shaft from a second initial position to a second pre-defined final position when the motor 106 is supplied with the AC pulse. The second initial position and the second pre-defined final position of the shaft are pre-set by the manufacturer of the vehicle 102 and are available in the first set of look up tables. The second set of predefined criteria further comprise the movement of the shaft from the second initial position to a second intermediate position when the motor 106 is supplied with the DC pulse. The second intermediate position is a position between the second initial position and the second pre-defined final position. The second intermediate position of the shaft is pre-set by the manufacturer of the vehicle 102 and is available in the first set of look up tables. The second set of pre-defined criteria further comprise the movement of the shaft from the second initial position to the second pre-defined final position, current drawn by the motor 106 being lesser than a second pre-defined current and the speed of the shaft of the motor 106 being zero when the motor 106 is supplied with the sinusoidal pulse. The second pre-defined current is pre-set by the manufacturer of the vehicle 102 and is available in the first set of look up tables. The second set of predefined criteria further comprise the movement of the shaft from the second initial position to the second pre-defined final position, current drawn by the motor 106 being within the second pre-defined current and the speed of the shaft of the motor 106 being equal to a second pre-defined speed when the motor 106 is supplied with the trapezoidal pulse. The second pre-defined speed is pre-set by the manufacturer of the vehicle 102 and is available in the first set of look up tables.

[032] In an embodiment, the motor 106 is identified as the induction motor on satisfaction of third pre-defined criteria. The third pre-defined criteria comprise the movement of the shaft from a third initial position to a third pre-defined final position when the motor 106 is supplied with the AC pulse. The third pre-defined initial position and final position are pre-set by the manufacturer of the vehicle 102 and are available in the first set of look up tables. The third pre-defined criteria further comprise zero movement of the shaft when the motor 106 is supplied with the DC pulse.

[033] In an embodiment, the motor 106 is identified as the DC motor on satisfaction of fourth pre-defined criteria. The fourth pre-defined criteria comprise zero movement of the shaft when the motor 106 is supplied with the AC pulse. The fourth pre-defined criteria further comprise the movement of the shaft from a fourth initial position to a fourth pre-defined final position when the motor is supplied with the DC pulse. The fourth initial position and fourth pre-defined final position are pre-set by the manufacturer of the vehicle 102 and are available in the first set of look up tables.

[034] It is to be understood that control unit 104 is a listed control unit. A listed control unit is authorized to communicate with the remote server 112. In case a non-listed control unit is provided in the vehicle 102, it will not be able to communicate with the remote server 112.

[035] Figure 2 is a flow chart illustrating a method 200 for remote calibration of a motor 106 in a vehicle 102, in accordance with an embodiment of the present invention.

[036] As shown, at step 201 , the method comprises detecting movement of a shaft of the motor 106 coupled with a coupler 110 when the motor 106 is supplied with an AC Pulse, a DC Pulse, a trapezoidal pulse and/or a sinusoidal pulse. The motor 106 is selected from a group of different types of motors 106 and the coupler 110 is selected from a group of different couplers 110. Each coupler 110 in the plurality of couplers has a different configuration and adapted to couple with one type of motor 106 from the group of different type of motors. The coupler 110 is mechanically coupled with the motor 106 and communicatively coupled with the control unit 104. When the motor 106 is coupled with the coupler 110, the configuration of the coupler 110 is received by the control unit 104. Also, the movement of the shaft of the motor 106 is detected by one or more position sensors 118 located on the shaft. The one or more position sensors 118 are communicatively coupled to the control unit 104 and transmit information on the movement of the shaft of the motor 106 to the control unit 104.

[037] At step 202, the method comprises identifying the type of motor 106 based on the coupler configuration and the movement of the shaft of the motor. A first set of look up table indicating relation between the movement of the shaft and the type of motor is stored in the control unit 104. The control unit 104 refers the first set of look up tables in determining the type of the motor 106.

[038] At step 203, the method comprises transmitting information indicative of the type of motor 106 to a remote server 112.

[039] At step 204, the method comprises remotely calibrating one or more parameters of the identified type of motor 106 based on inputs received from the remote server 112. The inputs received from the remote server are ideal values of the one or more parameters of the identified type of motor 106. The remote server 112 is communicatively coupled to the control unit 104. The remote server 112 comprises a second set of look up tables. The second set of look up tables comprises ideal values of the one or more parameters for each type of motor 106. Based on the information received from the control unit 104 with respect to the type of the motor 106, the ideal values of the one or more parameters are transmitted from the remote server 112 to the control unit 104. The control unit 104, on receiving the ideal values of the one or more parameters of the motor 106, calibrates the motor 106.

[040] In an embodiment, the method further comprises transmitting detecting a Vehicle Identification Number (VIN) of the vehicle 102 to the remote server 112. The remote server 112 comprises updated configurations for flashing the control unit 104. Based on the VIN number, the updated configuration available in the remote server 112 is transmitted to the control unit 104 and the control unit 104 is flashed by received updated configurations. The control unit 104 is flashed with the updated configuration as and when the same are available in the remote server 112. In an embodiment, a third set of look up tables is stored in the remote server. The third set of look up tables comprises VIN and updated configurations available for the VIN. In an embodiment, the VIN is stored in the control unit. In an embodiment, the control unit is configured to retrieve the VIN from other components of the vehicle.

[041] It is to be understood that typical hardware configuration of the control unit 104 disclosed in the present invention can include a set of instructions that can be executed to cause the control unit 104 to perform the above-disclosed method.

[042] 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.

[043] A storage unit of the control unit 104 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 readonly 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.

[044] The control unit 104 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 104. 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.

[045] The control unit 104 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.

[046] 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 identifying the type of the motor in the vehicle and installing a control unit specifically configured for the identified motor type which is difficult as well as time consuming is solved by the present invention. [047] In the present invention, the control unit 104 of basic configuration is provided in each vehicle 102 on an assembly line. On the assembly line, based on the configuration of a coupler 110 coupled with a shaft of the motor 106 and the movement of the shaft, the type of motor 106 installed in the vehicle 102 is identified. Based on such identification, one or more parameters of the motor 106 are detected as well as remotely calibrated by receiving inputs from the remote server 112. The control unit 104 is also flashed with updated configurations, as and when available, in the remote server 112. One of the advantages of the present invention is that vehicles having a motor selected from different type of motors and a control unit having a basic configuration can be received on the assembly line. On the assembly line itself, the type of motor 106 is identified and remote calibration of the parameters of the motors is performed. The present invention, therefore, reduces the time and complexity involved in identifying the motor in the vehicle and thereafter installing a control unit in the vehicle specifically configured to control the identified type of motor. In other words, the present invention provides a reliable, easy and economical system 100 and method 200 for calibration of the one or more parameters of the motor 106.

[048] In the present invention, the one or more parameters of the motor 106 are calibrated remotely. This eliminates the need for calibrating each motor 106 separately which reduces the manufacturing time for each vehicle and reduces the overall cost of the vehicle.

[049] In the present invention, the type of motor is identified on the assembly line which simplifies the manufacturing process as vehicles with different type of motors can be received on the assembly line without changes in the assembly line.

[050] In the present invention, a first set of look up tables is provided in the control unit which easily determines the type of motor installed in the vehicle. This reduces the need for human intervention in identification of the type of motor and also reduces manufacturing time and costs associated with manufacturing the vehicle.

[051] In the present invention, based on VIN, the control unit receives updated configurations from the remote server. The third set of look up tables comprising VIN and updated configurations corresponding to the VIN is stored in the remote server. On the assembly line, this eliminates the need for human intervention in updating the control unit on assembly line, which in turn, reduces manufacturing time and costs associated with the vehicle.

[052] In the present invention, the control unit automatically receives updated configurations from the remote servers, as and when such updated configurations are available in the remote server. The control unit with updated configurations perform in an efficient manner. Such remote and automatic flashing of the control unit eliminates the need to individually update each control unit.

[053] In the present invention, the control unit is remotely flashed which eliminates necessity of having multiple systems for independently flashing the control unit in the vehicle.

[054] In the present invention, the serviceability of the control unit is made easier as the updated configurations are received automatically from the remote server on assembly line or at dealer side or directly in vehicle through OTA (over the air).

[055] 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.

List of Reference Numerals:

100- system 102- vehicle

104- control unit

106- motor

110- couplers 112- remote server

118- Position sensor

Claims

CLAIMS:

1. A system (100) for remote calibration of a motor (106) in a vehicle (102), the system (100) comprising:

- the motor (106) disposed in the vehicle (102), the motor (106) configured to propel the vehicle (102) and being selected from a group of different types of motors;

- a plurality of couplers (110), each coupler (110) having a different configuration and adapted to couple with one motor selected from the group of different types of motor; and

- a control unit (104) disposed in the vehicle (102), the control unit (104) being communicatively coupled to the motor (106) and the coupler (110) coupled with the motor (106), the control unit (104) being configured to: o detect movement of a shaft of the coupled motor (106) via one or more position sensors (118) when the motor (106) is supplied with at least one of: an AC pulse, a DC pulse, a trapezoidal pulse and a sinusoidal pulse; o identify a type of the coupled motor (106) in the vehicle (102) based on the configuration of the coupler (110) and the movement of the shaft of the coupled motor (106) using a first set of look up tables; and o remotely calibrate one or more parameters of the identified type of the motor (106) based on inputs received from a remote server (112).

2. The system (100) as claimed in claim 1 , wherein the first set of look up tables is stored in the control unit (104). The system (100) as claimed in claim 1 , wherein the control unit (104) being flashed with an updated configuration received from the remote server (112). The system (100) as claimed in claim 1 , wherein the one or more parameters of the motor (106) comprise at least one of: pole pairs, resistance of phase, D axis inductance, Q axis inductance, back EMF, motor inertia, friction constant, position offset, motor torque constant, mechanical speed of a rotor, D axis current, Q axis current, rotor flux linkage and speed sensing. The system (100) as claimed in claim 1 , wherein the group of different types of motors comprises: Permanent Magnet Synchronous Motor (PMSM), Brushless Direct Current Motor (BLDC), Induction Motor and Direct Current (DC) motor. The system (100) as claimed in claim 2, wherein the first set of look up table comprises at least a first table, a second table, a third table and a fourth table. The system (100) as claimed in claim 6, wherein the first table indicates the type of the motor (106) based on the movement of the shaft when the motor (106) is supplied with the AC Pulse, the second table indicates the type of the motor (106) based on the movement of the shaft when the motor (106) is supplied with the DC Pulse, the third table indicates the type of the motor (106) based on the movement of the shaft, current drawn by the motor (106) and speed of the motor (106) when the motor (106) is supplied with the sinusoidal pulse and the fourth table indicates the type of the motor (106) based on the movement of the shaft, current drawn by the motor (106) and the speed of the motor (106) when the motor (106) is supplied with the trapezoidal pulse. The system (100) as claimed in claim 7, wherein the motor (106) is identified as the PMSM motor on satisfaction of a first pre-defined criteria, wherein the first predefined criteria comprise:

- movement of the shaft from a first initial position to a first pre-defined final position when the motor (106) is supplied with the AC pulse;

- movement of the shaft from the first initial position to a first intermediate position when the motor (106) is supplied with the DC pulse, the first intermediate position being a position between the first initial position and the first final position;

- movement of the shaft from the first initial position to the first pre-defined final position, current drawn by the motor (106) being less than a first pre-defined current and the speed of the shaft of the motor (106) being equal to a first pre-defined speed when the motor (106) is supplied with the sinusoidal pulse; and

- movement of the shaft from the first initial position to the first pre-defined final position, current drawn by the motor (106) being greater than the first predefined current and the speed of the shaft of the motor (106) being non-linear when the motor (106) is supplied with the trapezoidal pulse. The system (100) as claimed in claim 7, wherein the motor (106) is identified as the BLDC motor on satisfaction of a second pre-defined criteria, wherein the second pre-defined criteria comprise: movement of the shaft from a second initial position to a second pre-defined final position when the motor (106) is supplied with the AC pulse; - movement of the shaft from the second initial position to a second intermediate position when the motor (106) is supplied with the DC pulse, the second intermediate position being a position between the second initial position and the second pre-defined final position;

- movement of the shaft from the second initial position to the second predefined final position, current drawn by the motor (106) being lesser than a second pre-defined current and the speed of the shaft of the motor (106) being zero when the motor is supplied with the sinusoidal pulse; and

- movement of the shaft from the second initial position to the second predefined final position, current drawn by the motor (106) being within the second pre-defined current and the speed of the shaft of the motor being equal to a second pre-defined speed when the motor (106) is supplied with the trapezoidal pulse.

10. The system (100) as claimed in claim 7, wherein the motor (106) is identified as the induction motor on satisfaction of a third pre-defined criterion, wherein the third predefined criterion comprises:

- movement of the shaft from a third initial position to a third pre-defined final position when the motor (106) is supplied with the AC pulse; and

- zero movement of the shaft when the motor (106) is supplied with the DC pulse.

11. The system (100) as claimed in claim 7, wherein the motor (106) is identified as the

DC motor on satisfaction of a fourth pre-defined criterion, the fourth pre-defined criterion comprise: - zero movement of the shaft when the motor (106) is supplied with the AC pulse; and

- movement of the shaft from a fourth initial position to a fourth pre-defined final position when the motor (106) is supplied with the DC pulse.

12. The system (100) as claimed in claim 1 , wherein the control unit (104) is a listed control unit, the listed control unit being authorized to communicate with the remote server (112).

13. The system (100) as claimed in claim 1 , wherein the control unit being configured to transmit a Vehicle Identification Number (VIN) to the remote server (112) for retrieving updated configurations for flashing the control unit (104).

14. A method (200) for remote calibration of a motor (106) in a vehicle (102), the method (200) comprising:

- detecting (201 ), by one or more position sensors (118) being communicatively coupled to a control unit (104), a movement of a shaft of the motor (106), coupled with a coupler (110), on being supplied with one of: an AC pulse, a DC pulse, a trapezoidal pulse and a sinusoidal pulse;

- identifying (202), by the control unit (104), type of the motor (106) in the vehicle (102) based on a configuration of the coupler (110) and the movement of the shaft of the coupled motor (106) using a first set of look up tables; and

- transmitting (203), by the control unit (104) to a remote server (112), information indicative of the identified type of motor; and - calibrating (203), by the control unit (104), one or more parameters of the identified type of the motor (106) based on inputs received from the remote server (112). 15. The method as claimed in claim 14, comprising: transmitting a Vehicle Identification number (VIN) to the remote server (112) by the control unit (104) for retrieving updated configuration for flashing the control unit (104).