US 12,344,254 B2
Control method for vehicle and control device for vehicle
Yoshihiro Terai, Kanagawa (JP); Tomohiro Ito, Kanagawa (JP); Azusa Kobayashi, Kanagawa (JP); Kentaro Fuse, Kanagawa (JP); and Keisuke Nishida, Kanagawa (JP)
Assigned to NISSAN MOTOR CO., LTD., Yokohama (JP)
Appl. No. 18/712,930
Filed by NISSAN MOTOR CO., LTD., Yokohama (JP)
PCT Filed Nov. 26, 2021, PCT No. PCT/JP2021/043374
§ 371(c)(1), (2) Date May 23, 2024,
PCT Pub. No. WO2023/095281, PCT Pub. Date Jun. 1, 2023.
Prior Publication US 2024/0416918 A1, Dec. 19, 2024
Int. Cl. B60W 30/188 (2012.01); B60W 10/08 (2006.01)
CPC B60W 30/188 (2013.01) [B60W 10/08 (2013.01); B60W 2510/246 (2013.01); B60W 2710/0644 (2013.01); B60W 2710/083 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A control method for a vehicle, the vehicle including an electric generator, an engine coupled to the electric generator, a drive motor configured to drive the vehicle, and a battery electrically connected to the electric generator and the drive motor, electric power generated by the electric generator being configured to be supplied to at least one of the battery and the drive motor, the control method comprising:
starting warm-up of the battery;
calculating a drive torque target value based on required electric power of the vehicle and a state of the battery;
determining whether a condition is met that the warm-up of the battery is not completed and the required electric power of the vehicle is less than a first threshold;
at a first time, at which the condition is met, controlling a torque of the electric generator to the drive torque target value, and a rotation speed of the engine to a first rotation speed; and
at a second time, at which the condition is not met, controlling a torque of the engine to the drive torque target value while controlling the generator to apply a rotation speed maintenance torque to the engine to maintain the rotation speed of the engine at a second rotation speed.