Patent ID: 9211795
Filing Date: 2015-12-15
Classification: B60L,Y02T

Abstract:
1. An electronic control apparatus mountable on a vehicle, the vehicle including a motor generator connected to a drive wheel of the vehicle to drive the drive wheel and a battery configured to supply electric power to the motor generator, the battery capable of being charged by regenerative action of the motor generator, the electronic control apparatus configured to: determine that the battery is unable to be charged; determine that a rollback of the vehicle occurs; determine that an accelerator pedal of the vehicle is depressed based on an amount of depression of the accelerator pedal; lock the motor generator when the battery is unable to be charged, the rollback of the vehicle occurs, and the accelerator pedal is depressed; and when the lock of the motor generator is completed, command the motor generator to generate a drive torque according to the amount of depression of the accelerator pedal while releasing the lock of the motor generator, lock the motor generator by controlling an inverter of the vehicle to supply an excitation current to the motor generator in such a manner that a rotor magnetic field and a rotating magnetic field of the motor generator are aligned with each other, lock the motor generator in such a manner that a rotor of the motor generator is fixed to a predetermined target position, obtain the target position and a present position of the rotor and calculate a difference between the target position and the present position, and increase the supply of the excitation current to the motor generator as the difference decreases.