Active chassis adjustment device for a motor vehicle
By detecting vehicle body vibration intensity through an adaptive adjustment loop and optimizing the scaling factor using an evaluation unit and a timer, the conflict between low-speed vibration reduction and high-frequency comfort in existing technologies is resolved, thereby improving driving comfort under different driving conditions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- AUDI AG
- Filing Date
- 2022-11-09
- Publication Date
- 2026-06-09
AI Technical Summary
Existing technologies cannot effectively reduce vibrations at low vehicle speeds and compromise high-frequency comfort, while at high speeds, vehicle body vibrations cannot be adequately attenuated, resulting in a conflict between driving comfort and performance.
An adaptive adjustment loop is adopted. The vibration intensity of the vehicle body is detected by the evaluation unit, and the scaling factor is temporarily increased to enhance the vibration reduction effect. A balance is struck between high-frequency comfort and vibration reduction. The vehicle body acceleration and speed are detected, and the signal is filtered by high-pass and low-pass filters. The adjustment signal is optimized by combining timer and comparator modules.
Improving high-frequency comfort at low speeds ensures effective vibration reduction under greater excitation, avoiding the conflict between vehicle body vibration and high-frequency comfort, and enhancing the overall driving experience.
Smart Images
Figure CN116176203B_ABST