Navigation device, electric motor drive motor control system, and drive motor control method

摘要

PPROBLEM TO BE SOLVED: To cause an electric vehicle to travel in such a manner that excessive heating of a specific drive motor can be avoided. PSOLUTION: The electric vehicle 1 in which a drive motor 3 is arranged to each of four wheels 2 is equipped with a motor control unit 35 for controlling respective drive motors 3 separately, and a navigation system 11 communicable with the motor control unit 35 through a motor control method determining system 5. The information processor 12 of the navigation system 11, upon finding a guided route to a set destination searched, generates an individual use plan of the drive motor 3 for the guided route so that the temperature rising level of each drive motor 3 does not exceed the upper-limit value when the electric vehicle 1 travels. When a control method of drive motor 3 is determined by the motor control method determining system 5 based on the use plan, the motor control unit 35 controls respective drive motors 3 based on the control information that follows the control method. PCOPYRIGHT: (C)2011,JPO&INPIT