US 12,275,310 B2
Electric vehicle control method and system for switching drive control on motors
Tomoyuki Manabe, Kanagawa (JP)
Assigned to NISSAN MOTOR CO., LTD., Yokohama (JP); and AMPERE S.A.S., Boulogne-Billancourt (FR)
Appl. No. 17/927,960
Filed by NISSAN MOTOR CO., LTD., Yokohama (JP); and AMPERE S.A.S., Boulogne-Billancourt (FR)
PCT Filed May 29, 2020, PCT No. PCT/IB2020/000515
§ 371(c)(1), (2) Date Nov. 28, 2022,
PCT Pub. No. WO2021/240193, PCT Pub. Date Dec. 2, 2021.
Prior Publication US 2023/0241982 A1, Aug. 3, 2023
Int. Cl. B60L 15/20 (2006.01); B60L 9/18 (2006.01)
CPC B60L 15/2036 (2013.01) [B60L 9/18 (2013.01); B60L 2240/421 (2013.01); B60L 2240/423 (2013.01); B60L 2240/526 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An electric vehicle control method comprising:
using a first motor configured to drive a first driving wheel and a second motor configured to drive a second driving wheel, performing mode switching control switching between a first mode in which only the first motor operates and a second mode in which the first motor and the second motor operate based on input of a driver, performing drive control on the first motor by transmitting a first torque command value to a first inverter, and performing drive control on the second motor by transmitting a second torque command value to a second inverter; and
performing switching control of switching, based on the mode switching control, the drive control on the second motor by the second inverter between an ON state in which the drive control is performed and an OFF state in which the drive control is stopped, wherein
a torque fluctuation amount generated in the second motor during the switching control is calculated based on a rotation speed of the second motor, and
the first torque command value is corrected based on the torque fluctuation amount.