Electric-vehicle control device

摘要

A control device for an electric vehicle which is able to accurately control a traction motor of the electric vehicle without any delay in control timing during rapid acceleration or rapid deceleration of the motor, is provided. The control device for the electric vehicle includes an ECU and an inverter device including a motor control module. A rotation angle sensor configured to detect a rotation angle of a motor is provided, and the motor control module is provided with a rotation angle correction section configured to correct a rotation angle of a rotor of the motor which is used for vector control, by using an angular speed of an electrical angle which is the rotation angle detected by the rotation angle sensor and a differential value of the angular speed of the electrical angle.

主权项

1. A control device for an electric vehicle, comprising:
an ECU which is an electric control unit configured to perform general control of the vehicle; an inverter device including: a power circuitry having an inverter configured to convert a DC power into an AC power used to drive a traction motor; and a motor control module configured to control the power circuitry in accordance with a torque command from the ECU; and a rotation angle sensor configured to detect a rotation angle of the motor, wherein the motor control module acquires a rotation angle of a rotor of the motor from the rotation angle sensor and performs a vector control, and the motor control module comprises a rotation angle correction section configured to correct the rotation angle of the rotor of the motor which is detected by the rotation angle sensor and used for the vector control, by using an angular speed of an electrical angle which is the rotation angle detected by the rotation angle sensor and a differential value of the angular speed of this electrical angle.