Proactive Vehicle Damping Control via Road Profile Detection
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Solution Overview
Problem
Existing vehicle vibration damping systems react slowly to road surface changes, leading to delayed adjustments in damping settings, which can compromise ride comfort and handling.
Innovation Solution
A proactive control method for vehicle vibration damping systems that detects and classifies road surface profiles ahead, allowing for anticipatory adjustments to damping settings based on detected height and length features, minimizing response delay and improving ride comfort and handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If reactive control using acceleration sensors and position sensors is used to measure vehicle body and wheel movements, then the damping system can respond to road surface changes, but the response is delayed due to the time required to detect and process the movements
Solution Approach 1:
The patent applies preliminary action by using a detection device (camera) to capture road surface information in advance before the vehicle reaches it. The control unit processes this advance information and adjusts the damping system proactively, eliminating the delay inherent in reactive systems that only respond after sensors detect vehicle movements caused by road irregularities.
2Adaptability or versatility
If the damping system adjusts based on measured movements of the vehicle body or wheels, then the system can accommodate changes in the road surface, but the adjustment occurs after the disturbance has already affected the vehicle
Solution Approach 1:
The system captures images of the road surface ahead of the vehicle and processes this information in advance to determine upcoming road irregularities. This allows the damping system to adjust its characteristics before the vehicle encounters the disturbance, improving adaptability without the time loss associated with reactive adjustment after the disturbance occurs.
Data Source
AI summary
A vehicle can have a vibration damping system, which has a characteristic curve that is adjustable. To control the characteristic curve of the vibration damping system, information regarding a profile of a road surface in front of the vehicle is detected. At least a portion of the road surface profile can be classified according to a change in height and a length of the portion. The classification can be based on the detected information. Based on the classification of the road surface profile, the characteristic curve of the vibration damping system of the vehicle can be adjusted.