DEVICE FOR CONTROLLING ELECTRIC AUTOMOBILE

摘要

A control device for an electric vehicle improving the responsiveness of a motor and leading to improvement in occupant's riding comfort during power running and regenerative control of the motor. A motor control module includes: a current PI control section to perform PI feedback control to eliminate a deviation relative to a command current value generated in an inverter, in response to a torque command from an ECU; PI control gain adjustment tables, for power running and regenerative control, in which a PI control gain used when the current PI control section performs the PI feedback control is set in accordance with a running state; and a control gain adjustment section to adjust the PI control gain according to the PI control gain adjustment table such that a PI control gain corresponding to the running state is used.

主权项

1. A control device for an electric vehicle including: an ECU which is an electric control unit configured to perform general control of the vehicle; and
an inverter device including: a power circuitry with an inverter configured to convert a DC power to an AC power used to drive a traction motor; and a motor control module configured to control the power circuitry in accordance with control of the ECU, the motor control module comprising: a current PI control section configured to perform PI feedback control so as to eliminate a deviation relative to a command current value generated in the inverter, in response to a torque command from the ECU; PI control gain adjustment tables, for power running control and for regenerative control, in which a PI control gain used when the current PI control section performs the PI feedback control is set in accordance with a running state; and a control gain adjustment section configured to adjust the PI control gain of the current PI control section according to the PI control gain adjustment table such that the PI control gain corresponding to the running state is used.