| 摘要 |
PROBLEM TO BE SOLVED: To determine abnormality of each current detector, when restarting each power converter after it is stopped by the self-protective function due to generation of an overcurrent, in an electric vehicle mounting a plurality of motors and a plurality of power converters.SOLUTION: Upon occurrence of self-protection stop due to an overcurrent in any one of a converter 200 and inverters 210, 220, an ECU170 stops each of the converter 200 and inverters 210, 220 temporarily. After self-protection stop due to an overcurrent, the ECU170 performs retry control for resuming motor control of MG1, MG2 by current feedback control. In the retry control, the current upper limit guard value is raised in stages in the current feedback control, and at each stage, abnormality of the current sensor 211 of MG1 and the current sensor 221 of MG2 is determined individually, based on the sensor output values during current feedback control, and the control information. |
