Title:
SELF-LEARNING METHOD AND APPARATUS FOR CLUTCH OF HYBRID ELECTRIC VEHICLE, AND VEHICLE
Document Type and Number:
WIPO Patent Application WO/2024/061132
Kind Code:
A1
Abstract:
The present application belongs to the technical field of hybrid electric vehicles. Provided are a self-learning method and apparatus for the clutch of a hybrid electric vehicle, and a vehicle. The method comprises: controlling a clutch to separate, and also controlling an electric motor to operate at a preset initial rotation speed and a preset initial torque, so as to prepare for determining a semi-linkage point of the clutch; furthermore, increasing a current value of an electromagnetic valve of the clutch, so as to gradually increase the pressure which is applied by the clutch, and also monitoring the real-time torque of the electric motor, so as to indirectly determine, according to whether the torque of the electric motor is increased, whether the clutch reaches a semi-linkage state; when the real-time torque of the electric motor is increased on the basis of the initial torque and exceeds a preset torque, this indicating that the clutch reaches the semi-linkage point; and there being a corresponding target current value of the electromagnetic valve at this time, acquiring the target current value, and updating a previously stored semi-linkage parameter set. Therefore, the self-learning of a semi-linkage point of a clutch is realized according to the output of an electric motor, thereby improving the accuracy and efficiency of the self-learning of a clutch.
Inventors:
WANG QINGLAI (CN)
QI KEGUANG (CN)
SHU JIE (CN)
PEI YIMENG (CN)
MEI QIAN (CN)
XU ZHITAN (CN)
GAO LIJUAN (CN)
QI KEGUANG (CN)
SHU JIE (CN)
PEI YIMENG (CN)
MEI QIAN (CN)
XU ZHITAN (CN)
GAO LIJUAN (CN)
Application Number:
PCT/CN2023/119177
Publication Date:
March 28, 2024
Filing Date:
September 15, 2023
Export Citation:
Assignee:
CHERY AUTOMOBILE CO LTD (CN)
International Classes:
F16H61/02; F16D48/06
Foreign References:
| CN115585258A | 2023-01-10 | |||
| CN103661358A | 2014-03-26 | |||
| CN106347372A | 2017-01-25 | |||
| CN114738398A | 2022-07-12 | |||
| CN113696882A | 2021-11-26 | |||
| JP2014061750A | 2014-04-10 |
Attorney, Agent or Firm:
BEIJING SAN GAO YONG XIN INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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