Patent ID: 7880412
Filing Date: 2011-02-01
Classification: B60K,B60L,H02P,Y02T

Abstract:
1. A control apparatus for an electric vehicle comprising: a conversion means that converts a voltage supplied by a DC power source into a system voltage appearing on a power supply line; an MG unit that includes an inverter connected to the power supply line and drives an AC motor; a current control means that controls a torque of the AC motor and an input electric power of the MG unit independently from each other; a system voltage control means that executes system voltage stabilization control to control the input electric power of the MG unit so as to suppress variation in the system voltage by sending to the current control means a command value for input electric power control; and a current control gain adjusting means that adjusts at least one of a current control gain for torque control and a current control gain for input electric power control in accordance with a control state of the MG unit.