Shift control method of hybrid vehicle and hybrid vehicle
By adjusting the speed and torque of the motor and engine during gear shifting in hybrid vehicles, the problems of clutch damage and prolonged shifting time caused by excessive engine speed are solved, achieving smooth and efficient gear shifting control.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- WEICHAI POWER CO LTD
- Filing Date
- 2026-04-23
- Publication Date
- 2026-07-17
AI Technical Summary
In existing hybrid vehicles, excessive engine speed during gear shifting can damage the clutch friction plates and prolong shifting time, affecting driving performance and ride comfort.
By determining whether a forced disengagement clutch command is received in the early stage of gear shifting, if received, the speed of the motor and engine is adjusted to different target speeds, and the engine torque is controlled to be reduced to a preset threshold. Finally, the clutch is controlled to engage, ensuring that the engine speed is lower than the motor speed.
This avoids engine overspeeding and prolonged shift time caused by torque response characteristics, ensuring smooth and efficient shifting, preventing damage to clutch friction plates, and improving driving performance and ride comfort.
Smart Images
Figure CN122402533A_ABST