Patent ID: 8825307
Filing Date: 2014-09-02
Classification: B60K,B60L,B60W,H02P,Y02T,Y10S

Abstract:
1. A control device of an electric vehicle comprising: a plurality of rotary electric machines that generate power for vehicle running; a plurality of energization control units that control energization of each of the plurality of the rotary electric machines; a state quantity-detecting unit that detects a state quantity related to a temperature of each of the plurality of the energization control units; a stall state-detecting unit that detects the presence or the absence of a stall state where, in an energization state of the rotary electric machine, a rotation stops or a rotational speed becomes less than or equal to a predetermined speed; and a control unit that switches energization of the rotary electric machine in which the stall state is detected, to energization of another rotary electric machine in which the stall state is not detected by the stall state-detecting unit, among the plurality of the rotary electric machines, in a case where the state quantity detected by the state quantity-detecting unit with respect to the rotary electric machine in which the stall state is detected by the stall state-detecting unit exceeds a predetermined threshold value, wherein the control unit switches energization such that a decrease in an output of the rotary electric machine in which the stall state is detected by the stall state-detecting unit and an increase in an output of the another rotary electric machine in which the stall state is not detected by the stall state-detecting unit are made to be the same, and the control unit performs switching to an energization phase different from a previous energization phase, when restarting energization of the rotary electric machine of which energization has been stopped depending on the stall state having been detected by the stall state-detecting unit and the state quantity detected by the state quantity-detecting unit having exceeded the predetermined threshold value.