US 11,919,504 B2
Motor control device
Hirotaka Mizuguchi, Kariya (JP); Satoshi Kokubo, Kariya (JP); Yoichi Oi, Anjo (JP); and Tomoki Inagaki, Anjo (JP)
Assigned to AISIN CORPORATION, Aichi (JP)
Appl. No. 17/417,568
Filed by AISIN CORPORATION, Kariya (JP)
PCT Filed Dec. 13, 2019, PCT No. PCT/JP2019/049052
§ 371(c)(1), (2) Date Jun. 23, 2021,
PCT Pub. No. WO2020/137639, PCT Pub. Date Jul. 2, 2020.
Claims priority of application No. 2018-241289 (JP), filed on Dec. 25, 2018.
Prior Publication US 2022/0055609 A1, Feb. 24, 2022
Int. Cl. B60W 20/16 (2016.01); B60W 10/06 (2006.01); B60W 10/08 (2006.01)
CPC B60W 20/16 (2016.01) [B60W 10/06 (2013.01); B60W 10/08 (2013.01); B60W 2510/0638 (2013.01); B60W 2510/0657 (2013.01); B60W 2510/0685 (2013.01); B60W 2510/083 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A motor control device for a vehicle including: an engine and a motor generator each serving as a power source; a transmission that transfers, to wheels, a driving torque based on at least one of an engine torque of a crankshaft of the engine and a motor torque of a motor shaft of the motor generator at a selected change gear ratio; and a damper that is provided between the engine and the transmission and reduces vibration of the crankshaft by using an elastic member, the motor control device comprising a hardware processor configured to:
calculate a first torsion torque generated by the motor shaft according to fluctuation of the engine torque based on a difference between a motor angle as a rotation angle of the motor shaft and a shaft angle as a rotation angle of a transmission shaft of the transmission on a downstream side of the damper;
calculate a first vibration damping torque to be output by the motor generator to damp vibration of the motor shaft based on the first torsion torque and a drive state value indicating a drive state of the engine; and
output a motor torque command value to be provided to the motor generator based on the first vibration damping torque.