US 11,990,855 B2
Rotating body drive system
Minoru Ishida, Kariya (JP); Tsubasa Sakuishi, Kariya (JP); and Yuki Takahashi, Kariya (JP)
Assigned to DENSO CORPORATION, Kariya (JP)
Filed by DENSO CORPORATION, Kariya (JP)
Filed on Mar. 29, 2022, as Appl. No. 17/706,739.
Application 17/706,739 is a continuation of application No. PCT/JP2020/036485, filed on Sep. 25, 2020.
Claims priority of application No. 2019-181703 (JP), filed on Oct. 1, 2019.
Prior Publication US 2022/0224257 A1, Jul. 14, 2022
Int. Cl. H02P 5/74 (2006.01); B60K 1/02 (2006.01); B60L 15/20 (2006.01)
CPC H02P 5/74 (2013.01) [B60L 15/20 (2013.01); B60K 1/02 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A rotating body drive system including a first motor driving a predetermined first rotating body, a second motor driving a second rotating body different from the first rotating body, a first inverter driving the first motor, and a second inverter driving the second motor, the rotating body drive system comprising:
a first switch that, when turned ON, connects between the first inverter and the first motor so that current can be passed therethrough and that, when turned OFF, disconnects the connection;
a gang switch that, when turned ON, connects between the first inverter and the second motor so that current can be passed therethrough and that, when turned OFF, disconnects the connection;
a determination unit that determines whether the first rotating body is in an abnormal state; and
a control unit that controls the first switch and the gang switch, wherein
in a case where the determination unit determines that there is no abnormality in the state of the first rotating body, the control unit establishes a normal state in which the first switch is ON and the gang switch is OFF to cause the first inverter to drive the first motor, while causing the second inverter to drive the second motor; and
in a case where the determination unit determines that there is abnormality in the state of the first rotating body, the control unit establishes a first countermeasure state in which the first switch is OFF and the gang switch is ON to cause both the first inverter and the second inverter to drive the second motor.