Title:
ELECTRIC MOTOR TORQUE CONTROL METHOD AND SYSTEM, VEHICLE, AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2022/218242
Kind Code:
A1
Abstract:
An electric motor torque control method, comprising: determining, according to a required torque (T9) and an actual torque (T10) of an electric motor, that the electric motor needs to be subjected to torque zero-crossing control; controlling the actual torque (T10) to reach a zero-crossing first preset torque and maintaining zero crossing for a first preset duration, wherein the positive and negative signs of the zero-crossing first preset torque are the same as those of the required torque (T9); controlling the actual torque (T10) to reach a zero-crossing second preset torque and maintaining zero crossing for a second preset duration, wherein the positive and negative signs of the zero-crossing first preset torque are the opposite of those of the zero-crossing second preset torque; and gradually adjusting the actual torque (T10) from the zero-crossing second preset torque to the required torque (T9) according to a preset curve, wherein in response to the deviation between the actual torque (T10) and the required torque (T9) being within a preset range, it is considered that the actual torque (T10) is adjusted to the required torque (T9). Further disclosed are an electric motor torque control system, a vehicle, and a storage medium. By means of the electric motor torque control method, the impact produced at the time of zero crossing of an electric motor torque can be suppressed, and a relatively good dynamic response can be ensured.
Inventors:
WANG GUOQIANG (CN)
LIANG HEQI (CN)
LIU YUANZHI (CN)
YIN JIANKUN (CN)
LIU JIAMING (CN)
ZHU HAO (CN)
LI CHUAN (CN)
LIANG HEQI (CN)
LIU YUANZHI (CN)
YIN JIANKUN (CN)
LIU JIAMING (CN)
ZHU HAO (CN)
LI CHUAN (CN)
Application Number:
PCT/CN2022/086044
Publication Date:
October 20, 2022
Filing Date:
April 11, 2022
Export Citation:
Assignee:
CHINA FAW CO LTD (CN)
International Classes:
B60L15/20; H02P6/08
Foreign References:
| CN110254250A | 2019-09-20 | |||
| CN109159673A | 2019-01-08 | |||
| CN112046301A | 2020-12-08 | |||
| JPH1133799A | 1999-02-09 |
Attorney, Agent or Firm:
BEIJING YZH IP FIRM (CN)
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