Oil pressure time-frequency domain combined control method of clutch hydraulic system
By combining hydraulic pressure time-frequency domain control with global fast sliding film time-domain control and frequency-domain control, the problems of slow response time, large overshoot, and high fluctuation in clutch hydraulic system are solved, achieving fast response and high steady-state accuracy hydraulic pressure control, thus improving vehicle ride comfort and clutch lifespan.
Patent Information
- Application Number
- CN202311236684.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-09-25
- Publication Date
- 2026-04-07
- Estimated Expiration
- 2043-09-25
AI Technical Summary
Existing control methods for clutch hydraulic systems have shortcomings in response time, overshoot, and fluctuation, which affect vehicle ride comfort and clutch lifespan.
A combined time-frequency domain control method for hydraulic pressure is adopted, which combines global fast sliding film time-domain control and loop-forming frequency-domain control. A mathematical model is established through system identification, and a global dynamic sliding film surface and H∞ controller are designed to achieve fast response and steady-state accuracy of hydraulic pressure.
It improves the robustness of the clutch hydraulic system, with fast response time, small overshoot, and low fluctuation, thereby enhancing vehicle ride comfort and clutch lifespan.