一种基于反步控制的整车机-液耦合位姿调平控制方法
By combining a backstepping controller with a seven-degree-of-freedom mechanical-hydraulic coupling model of the whole vehicle, the problem of vehicle tilt caused by the inability to adjust the suspension height of heavy-duty vehicles was solved, and the vehicle body was quickly and stably leveled, thus improving safety performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HEBEI UNIV OF TECH
- Filing Date
- 2023-09-05
- Publication Date
- 2026-07-17
AI Technical Summary
Existing heavy-duty vehicles cannot adjust their suspension height when the center of gravity changes while carrying heavy loads, causing the vehicle body to tilt and reducing safety performance.
By employing a backstepping controller combined with a seven-degree-of-freedom mechanical-hydraulic coupling model of the vehicle, an electro-hydraulic servo system model is established through the hydraulic system flow continuity equation and the servo valve throttling equation. An angle error decoupling method is then used to control the vehicle body roll angle and pitch angle, thereby achieving vehicle body leveling.
It effectively improves the carrying capacity and efficiency of heavy-duty vehicles, achieves rapid and stable leveling of the vehicle body, reduces vehicle tilt, and enhances safety performance.
Smart Images
Figure CN117261522B_ABST