Title:
GEAR SHIFTING CONTROL METHOD, DRIVE CONTROLLER AND ELECTRIC VEHICLE
Document Type and Number:
WIPO Patent Application WO/2023/179591
Kind Code:
A1
Abstract:
The present application discloses a gear shifting control method, a drive controller and an electric vehicle. The electric vehicle comprises a plurality of drive axles, the plurality of drive axles having identical transmission parameters, and the method comprises: when a gear shifting instruction is received, successively controlling target drive axles of the plurality of drive axles to perform gear shifting, and controlling the other drive axles of the plurality of drive axles to perform torque compensation for the target drive axles or to output torque in place of the target drive axles; when the plurality of drive axles have all completed gear switching, synchronously adjusting the transmission parameters of the plurality of drive axles. By symmetrically arranging the transmission parameters of the plurality of drive axles, the present application ensures that power output control is consistent across the plurality of drive axles, without the need for providing additional controllers for the individual control of each drive axle, thus simplifying gear shifting in the electric vehicle. Moreover, the plurality of drive axles of the present application alternately perform relay gear shifting, reducing gear shifting shocks, and thus reducing the problem of power interruption.
Inventors:
LIU YANBIN (CN)
LI YEBIN (CN)
ZHOU XUHUI (CN)
WEN JUN (CN)
LI YEBIN (CN)
ZHOU XUHUI (CN)
WEN JUN (CN)
Application Number:
PCT/CN2023/082731
Publication Date:
September 28, 2023
Filing Date:
March 21, 2023
Export Citation:
Assignee:
ZOOMLION HEAVY INDUSTRY SCIENCE AND TECH CO LTD (CN)
International Classes:
F16H61/04; F16H59/02
Foreign References:
| CN114704622A | 2022-07-05 | |||
| CN111251897A | 2020-06-09 | |||
| US20070089916A1 | 2007-04-26 | |||
| CN110588630A | 2019-12-20 | |||
| CN114132118A | 2022-03-04 |
Attorney, Agent or Firm:
RUNPING & PARTNERS (CN)
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