基于路面工况识别的拖拉机驾驶室主动悬浮控制方法
By processing data and performing frequency domain analysis on the tractor's suspension system, the damping coefficient and protection factor were dynamically adjusted, solving the problem of the suspension system's adaptability under different road conditions. This achieved a balance between comfort and safety, avoiding mechanical hard impacts and damage to suspension components.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANDONG HUASHOU HEAVY IND CO LTD
- Filing Date
- 2026-04-10
- Publication Date
- 2026-07-17
AI Technical Summary
Existing tractor suspension systems lack flexible damping energy absorption characteristics, cannot effectively absorb and filter high-frequency vibrations and impacts from the road surface, are difficult to meet ride comfort requirements, and cannot adaptively adjust vibration reduction strategies to cope with different road conditions, making them prone to mechanical hard impacts.
By acquiring the vertical acceleration of the tractor's front axle, the extension and retraction displacement of the suspension cylinder, and pressure data, noise reduction and bandpass filtering are performed. Frequency domain analysis is then conducted to obtain the road condition characteristic index. The damping coefficient and protection factor are dynamically adjusted to generate the final control command to achieve adaptive switching and soft limit protection of the suspension system.
It achieves precise adaptive switching of the suspension system under different road conditions, ensuring ride comfort and handling stability, preventing mechanical hard impacts, extending the life of suspension components, and limiting the low-damping strategy when the hydraulic system is unstable to prevent loss of suspension control.
Smart Images
Figure CN122008762B_ABST