A vehicular control apparatus that includes a switched reluctance motor and an electronic control unit is provided. The switched reluctance motor has a rotor and a stator and is mounted as a travel drive source in a vehicle. The electronic control unit executes current control of the switched reluctance motor. The electronic control unit executes first current control for causing the rotor to rotate in a reverse direction from a rotational direction in which the vehicle is started in the case where the vehicle is not started even when the switched reluctance motor outputs maximum torque within an allowable range, and executes control for causing the rotor to rotate in the rotational direction in which the vehicle is started after the rotor rotates in the reverse direction by the first current control to a rotation position at which torque for enabling a start of the vehicle can be output.

A vehicular control apparatus that includes a switched reluctance motor and an electronic control unit is provided. The switched reluctance motor has a rotor and a stator and is mounted as a travel drive source in a vehicle. The electronic control unit executes current control of the switched reluctance motor. The electronic control unit executes first current control for causing the rotor to rotate in a reverse direction from a rotational direction in which the vehicle is started in the case where the vehicle is not started even when the switched reluctance motor outputs maximum torque within an allowable range, and executes control for causing the rotor to rotate in the rotational direction in which the vehicle is started after the rotor rotates in the reverse direction by the first current control to a rotation position at which torque for enabling a start of the vehicle can be output.

A battery controller that performs current limitation in consideration of limitation on other components than a battery main body and the state of health of a battery is provided. A battery controller limits a battery current using allowable average current information describing current average values respectively allowed for a plurality of time windows. When the battery is deteriorated, an allowable average current obtained by subtraction in response to the state of health is used. Further, when the battery current exceeds an upper limit value stored in advance, the battery current is controlled with the upper limit reduced by the excessive amount.

A battery controller that performs current limitation in consideration of limitation on other components than a battery main body and the state of health of a battery is provided. A battery controller limits a battery current using allowable average current information describing current average values respectively allowed for a plurality of time windows. When the battery is deteriorated, an allowable average current obtained by subtraction in response to the state of health is used. Further, when the battery current exceeds an upper limit value stored in advance, the battery current is controlled with the upper limit reduced by the excessive amount.

Provided is a method for preventing overheating of a traction motor in an electric vehicle. The method for preventing the overheating of the traction motor in the electric vehicle includes identifying magnitude of an output load of the motor, identifying a loading time of the motor on the basis of the identified magnitude of the output load, comparing the identified loading time to a preset critical time, and controlling output torque of the motor according to the comparison result.

Provided is a method for preventing overheating of a traction motor in an electric vehicle. The method for preventing the overheating of the traction motor in the electric vehicle includes identifying magnitude of an output load of the motor, identifying a loading time of the motor on the basis of the identified magnitude of the output load, comparing the identified loading time to a preset critical time, and controlling output torque of the motor according to the comparison result.

A computer system has processing circuitry to control charging of a high-voltage energy storage system of a vehicle. The processing circuitry obtains data of at least one geographic zone comprising a road with a downhill slope, determines a regenerative charge power of an electric traction motor of the vehicle during operation of at least a portion of the downhill slope, determines a charge power ability of the high-voltage energy storage system when the vehicle arrives to the portion of the downhill slope, in response to the regenerative charge power exceeding the charge power ability at the portion of the downhill slope, sets a reduced maximum charge level of the high-voltage energy storage system, and controls charging of the high-voltage energy storage system at the current charging position to an energy level to, or below, the reduced maximum charge level.

A computer system has processing circuitry to control charging of a high-voltage energy storage system of a vehicle. The processing circuitry obtains data of at least one geographic zone comprising a road with a downhill slope, determines a regenerative charge power of an electric traction motor of the vehicle during operation of at least a portion of the downhill slope, determines a charge power ability of the high-voltage energy storage system when the vehicle arrives to the portion of the downhill slope, in response to the regenerative charge power exceeding the charge power ability at the portion of the downhill slope, sets a reduced maximum charge level of the high-voltage energy storage system, and controls charging of the high-voltage energy storage system at the current charging position to an energy level to, or below, the reduced maximum charge level.

A method of controlling a torque of a drive system of an electric vehicle, includes determining, by a controller, a total torque command based on required torque according to a vehicle driving state while driving of the vehicle, determining whether a backlash band evasion mode is in an ON state or an OFF state, front wheel torque control or rear wheel torque control for evading a backlash band being performed in the mode, determining whether transition of the vehicle driving state to the ON state of the backlash band evasion mode is allowed when the backlash band evasion mode is in the OFF state, and controlling the backlash band evasion mode using a front wheel torque command and a rear wheel torque command determined from the total torque command in the ON state of the backlash band evasion mode when the transition is allowed.

A method of controlling a torque of a drive system of an electric vehicle, includes determining, by a controller, a total torque command based on required torque according to a vehicle driving state while driving of the vehicle, determining whether a backlash band evasion mode is in an ON state or an OFF state, front wheel torque control or rear wheel torque control for evading a backlash band being performed in the mode, determining whether transition of the vehicle driving state to the ON state of the backlash band evasion mode is allowed when the backlash band evasion mode is in the OFF state, and controlling the backlash band evasion mode using a front wheel torque command and a rear wheel torque command determined from the total torque command in the ON state of the backlash band evasion mode when the transition is allowed.