Patent ID: 9409486
Filing Date: 2016-08-09
CPC Classification: B60K,B60L,B60W,H02P,Y02T

Claim Text:
1. A control method of an electric vehicle, comprising a battery supplying electricity, a motor receiving electricity from the battery and generating power, and a controller controlling the battery and the motor, wherein the controller executes instruction for: detecting a torque command, a motor speed, and a motor current; calculating a motor voltage from the motor current; determining whether voltage utilization according to a speed range of the motor is higher than a predetermined value; generating an operating point correcting function according to the motor speed when the voltage utilization is not higher than the predetermined value, wherein the generating the operating point correcting function further comprises: calculating a current command according to the motor speed from the operating point correcting function; and outputting the calculated current command.