US 12,227,081 B2
Electric vehicle control method and electric vehicle control device
Syuta Mizoguchi, Kanagawa (JP); and Akira Sawada, Kanagawa (JP)
Assigned to NISSAN MOTOR CO., LTD., Yokohama (JP)
Appl. No. 18/721,486
Filed by NISSAN MOTOR CO., LTD., Yokohama (JP)
PCT Filed Jan. 18, 2022, PCT No. PCT/JP2022/001658
§ 371(c)(1), (2) Date Jun. 18, 2024,
PCT Pub. No. WO2023/139661, PCT Pub. Date Jul. 27, 2023.
Prior Publication US 2024/0424912 A1, Dec. 26, 2024
Int. Cl. B60L 15/20 (2006.01); B60K 1/02 (2006.01)
CPC B60L 15/20 (2013.01) [B60K 1/02 (2013.01); B60L 2240/423 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An electric vehicle control method for controlling a driving force of each drive system in an electric vehicle equipped with a plurality of drive systems each including a drive motor, the method comprising:
basic torque distribution processing of determining a basic torque command value for each drive motor based on a total required driving force for the electric vehicle and driving force distribution for each of the drive systems;
vibration damping processing of obtaining a corrected torque command value by performing correction on each basic torque command value using a vibration compensation torque for reducing vibration of a driving force transmission system; and
driving force control processing of controlling a driving force generated by each drive motor based on the corrected torque command value, wherein:
the vibration damping processing includes:
estimating whether each of the drive systems is in a dead zone section individually, and
adjusting an amount of the vibration compensation torque for the drive system in the dead zone section according to the driving force distribution.