Vehicle control device, server, vehicle motor control system, and vehicle motor control method

A server, comprising:

• a receiving unit configured to receive, from a vehicle, motor information about a motor for driving the vehicle with the motor being in a predetermined state;
• a motor state estimating unit configured to create a model indicating a state of the motor on a basis of the received motor information and to estimate the state of the motor;
• an adapting unit configured to adapt a motor control parameter using the model;
• a transmitting unit configured to transmit an adaptive value of the motor control parameter adapted by the adapting unit to the vehicle,
• wherein the motor information comprises a number of revolutions of the motor, a temperature of the motor, and a voltage of the motor;
• an abnormality determination unit configured to make a determination on presence or absence of an abnormality of the motor based on the motor information,
• wherein the motor state estimating unit creates the model when the presence of the abnormality of the motor is determined and estimates the state of the motor;
• and
• a comparing unit configured to make comparison between a voltage reference value that depends on the number of revolutions of the motor, the temperature of the motor, and the voltage of the motor,
• wherein the abnormality determination unit makes the determination on presence or absence of the abnormality on a basis of a result of the comparison by the comparing unit.

A vehicle motor control system, comprising:

• a vehicle control device and a server,
• wherein the vehicle control device comprises:
• a motor information acquisition unit configured to acquire motor information about a motor for driving a vehicle with the motor being in a predetermined state;
• a transmitting unit configured to transmit the acquired motor information to the server;
• a receiving unit configured to receives an adaptive value of a motor control parameter, the adaptive value being adapted by the server on a basis of the motor information;
• and
• a motor controller configured to control the motor on a basis of the received adaptive value, and
• wherein the server comprises:
• a receiving unit configured to receive the motor information;
• a motor state estimating unit configured to create a model indicating a state of the motor on a basis of the received motor information and estimate the state of the motor;
• an adapting unit configured to adapt the motor control parameter using the model;
• a transmitting unit configured to transmit the motor control parameter adapted by the adapting unit to the vehicle control device,
• wherein the motor information comprises a number of revolutions of the motor, a temperature of the motor, and a voltage of the motor;
• an abnormality determination unit configured to make a determination on presence or absence of an abnormality of the motor on a basis of the motor information received from the vehicle control device,
• wherein the motor state estimating unit creates the model when the presence of the abnormality of the motor is determined and estimates the state of the motor;
• and
• a comparing unit configured to make comparison between a voltage reference value that depends on the number of revolutions of the motor, the temperature of the motor, and the voltage of the motor,
• wherein the abnormality determination unit of the server makes the determination on presence or absence of the abnormality on a basis of a result of the comparison by the comparing unit.

A vehicle motor control method, comprising:

• acquiring motor information about a motor for driving a vehicle using a control device provided in the vehicle with the motor being in a predetermined state;
• transmitting the acquired motor information to an external server using the control device;
• receiving the motor information using the external server;
• creating a model indicating a state of the motor on a basis of the received motor information and estimating the state of the motor using the external server;
• adapting a motor control parameter on a basis of the model using the external server;
• transmitting an adaptive value of the motor control parameter obtained by the adapting to the control device using the external server;
• receiving the adaptive value of the motor control parameter using the control device;
• controlling the motor on a basis of the received adaptive value using the control device,
• wherein the motor information comprises a number of revolutions of the motor, a temperature of the motor, and a voltage of the motor;
• determining a presence or absence of an abnormality of the motor based on the motor information,
• wherein the model is created when the presence of the abnormality of the motor is determined and the state of the motor is estimated;
• and
• comparing between a voltage reference value that depends on the number of revolutions of the motor, the temperature of the motor, and the voltage of the motor,
• wherein the determination on presence or absence of the abnormality is made on a basis of a result of the comparison.