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Title:
GEAR-SHIFTING CONTROL METHOD, GEAR-SHIFTING CONTROL SYSTEM AND DUAL-ELECTRIC-MOTOR VEHICLE
Document Type and Number:
WIPO Patent Application WO/2024/066914
Kind Code:
A1
Abstract:
A gear-shifting control method, comprising: when a specified gear-shifting switching signal is received, a dual-electric-motor vehicle (1000) switching from the mode where an engine (1) provides a wheel-end torque by means of an input shaft (8) to the mode where a second electric motor (3) provides the wheel-end torque; the dual-electric-motor vehicle (1000) controlling a brake (4) to engage with a sun gear (13); the dual-electric-motor vehicle (1000) using a first electric motor (2) to adjust the rotational speed of the engine (1) to a target rotational speed of the engine (1) corresponding to a target gear; the dual-electric-motor vehicle (1000) controlling a clutch (5) to be in an engaged state; and the dual-electric-motor vehicle (1000) switching from the mode where the second electric motor (3) provides the wheel-end torque to the mode where the engine (1) provides the wheel-end torque by means of the input shaft (8). During gear-shifting switching, the second electric motor (3) is used to maintain the torque required by a vehicle wheel end, and after the switching is completed, the engine (1) is used to provide the torque required by the vehicle wheel end, thus achieving a smooth transition of the wheel end torque, and having great smoothness. Further provided are a gear-shifting control system and a dual-electric-motor vehicle.

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Inventors:
ZHOU WENTAI (CN)
YU FENG (CN)
ZHU YONGMING (CN)
WANG JINHANG (CN)
ZHANG ANWEI (CN)
QI HONGZHONG (CN)
Application Number:
PCT/CN2023/116338
Publication Date:
April 04, 2024
Filing Date:
August 31, 2023
Export Citation:
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Assignee:
GUANGZHOU AUTOMOBILE GROUP CO (CN)
International Classes:
B60W20/40; B60W10/02; B60W10/08
Domestic Patent References:
WO2022183836A12022-09-09
Foreign References:
CN104859638A2015-08-26
CN113619586A2021-11-09
CN114658841A2022-06-24
CN102616239A2012-08-01
CN113954817A2022-01-21
CN112590755A2021-04-02
CN111516694A2020-08-11
CN112145668A2020-12-29
Attorney, Agent or Firm:
SHENZHEN SCIENBIZIP INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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