US 11,870,375 B2
Motor apparatus and vehicle
Takashi Koikegami, Kanagawa (JP); Satoshi Shimazu, Kanagawa (JP); and Yuhi Nakada, Kanagawa (JP)
Assigned to NIDEC ELESYS CORPORATION, Kanagawa (JP)
Filed by NIDEC ELESYS CORPORATION, Kanagawa (JP)
Filed on Apr. 6, 2022, as Appl. No. 17/715,007.
Claims priority of application No. 202110371715.8 (CN), filed on Apr. 7, 2021.
Prior Publication US 2022/0329185 A1, Oct. 13, 2022
Int. Cl. G05B 1/06 (2006.01); H02P 21/18 (2016.01); B60L 15/00 (2006.01); B60L 15/20 (2006.01); B60K 1/00 (2006.01)
CPC H02P 21/18 (2016.02) [B60K 1/00 (2013.01); B60L 15/007 (2013.01); B60L 15/20 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A motor apparatus, comprising:
a motor;
an inverter, used to convert an input voltage into a three-phase alternating current voltage and provide the three-phase alternating current voltage to the motor;
an inverter controller, used to control the inverter; and
a rotation angle sensor, fixed to the motor, used to detect a rotation angle of the motor,
wherein the inverter controller comprises a calculator, and the calculator calculates an offset angle of an installation position of the rotation angle sensor according to a difference between a measured value and a theoretical value of a voltage phase of the motor.