公开(公告)号：US11251739B2

公开(公告)日：2022-02-15

申请号：US16876643

申请日：2020-05-18

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Yoshihiko Maeda ,  Hisazumi Watanabe ,  Yuji Aoki ,  Akitaka Yoshikawa

IPC: H02P1/00 ,  H02P29/024 ,  H02P27/08 ,  B60L15/20 ,  B60L53/20 ,  H02M7/5387

Abstract: A vehicle driving device includes an inverter which drives a motor. The inverter includes: a three-phase bridge circuit including a plurality of switching elements; a three-phase short circuit which short-circuits three phases of the motor via the three-phase bridge circuit; and a control circuit. The control circuit includes: a microprocessor which drives the three-phase bridge circuit; a malfunction notification circuit which outputs a malfunction notification signal when the microprocessor is malfunctioning; and a latch circuit which holds the malfunction notification signal outputted from the malfunction notification circuit. The control circuit outputs a three-phase short-circuit drive signal which drives the three-phase short circuit, based on the malfunction notification signal held by the latch circuit.