Rear Damper Pre-Adjustment Using Front Suspension Motion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional vehicle damping systems fail to appropriately set the rear damping coefficient based on conditions experienced by the front axle or damper, leading to passenger discomfort due to potential 'bottoming out' or hard impacts with end stops.
Innovation Solution
A computer-implemented method determines the rear damping coefficient of a vehicle's rear damper by analyzing the movement of the front damper, the time lag before the rear damper experiences a condition, and the front damping coefficient, to prevent rear suspension impacts with end stops.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional damping systems adjust damping coefficients collectively across all dampers, then the system complexity is reduced, but the rear damper cannot be appropriately adjusted based on front axle conditions, leading to passenger discomfort
Solution Approach 1:
The system determines the rear damping coefficient in advance based on front damper movement detection, before the rear suspension actually experiences the road condition. This preliminary adjustment prevents bottoming out by pre-configuring appropriate damping levels, resolving the contradiction by enabling adaptive control without requiring real-time complex coordination of all dampers simultaneously
Solution Approach 2:
The front damper acts as an intermediary sensor that provides information about upcoming road conditions to the control system, which then adjusts the rear damper accordingly. This mediator approach enables the rear damper to respond to conditions it hasn't yet encountered, achieving adaptability while keeping the control architecture relatively simple
2Reliability
If the rear damper uses a fixed damping coefficient, then the device complexity is minimized, but the rear suspension may bottom out or experience hard impacts, causing passenger discomfort
Solution Approach 1:
The damping system serves itself by using front damper movement information to automatically determine appropriate rear damping coefficients. The system self-adjusts based on detected conditions without requiring complex external control, achieving reliable prevention of bottoming out while maintaining relatively simple device architecture
Solution Approach 2:
The system implements feedback by continuously monitoring front damper movement and using this information to adjust rear damper settings. This feedback loop ensures the rear suspension adapts to upcoming road conditions, preventing bottoming out while using a manageable level of control complexity
Data Source
AI summary
Systems and methods for adjusting a rear damping coefficient to control to jerk of a rear damper of a vehicle based on movement of a front damper of the vehicle, an amount of time between a first time when the movement of the front damper occurs and a second time when the rear damper of the vehicle is expected experience a condition which caused the movement of the front damper, and a front damping coefficient of the front damper.