Adjustable Door Check Link for Collision Avoidance
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Solution Overview
Problem
Vehicle doors often collide with obstructions due to wind forces or are difficult to close due to ergonomic issues, as existing door opening limiters fail to adjust for varying conditions such as high winds or occupant seating positions.
Innovation Solution
A door check system with an adjustable mechanism, including a check link, adjustment slide, and actuator, which allows for programmable adjustment of the door's full open position based on sensed obstructions and occupant positions, using a door sensor and controller to optimize the door's angle and prevent damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the door opening limiter is fixed at full travel position, then the door can open completely, but the door may collide with obstructions in high-wind conditions
Solution Approach 1:
The door opening limiter is transformed from a fixed position system to a dynamic adjustable system. The check link length can be modified via the adjustment mechanism (housing, adjustment slide, and adjustment feature) to change the door's full travel position, allowing the system to adapt to varying wind conditions and prevent collisions while maintaining ease of door operation.
2Ease of operation
If the door opening limiter is fixed at full travel position, then the door structure is simple, but it is difficult to close the door when occupant seating position is not optimal
Solution Approach 1:
The adjustment mechanism introduces dynamic configurability to the door check system, allowing the check link effective length to be modified based on occupant seating position. This enables optimal door closing ergonomics for different seating arrangements while maintaining a relatively simple overall structure through modular components (housing, adjustment slide, adjustment feature).
Solution Approach 2:
The system changes the geometric parameter of the check link (effective length) to optimize door closing accessibility. By adjusting the check link length through the adjustment mechanism, the door's full travel position is modified to accommodate different occupant positions, improving ease of door closing without excessive structural complexity.
3Adaptability or versatility
If the check link length is fixed, then the manufacturing process is simple, but the door cannot adapt to varying seating positions or environmental conditions
Solution Approach 1:
The door check assembly incorporates an adjustable mechanism that allows the check link effective length to be modified after manufacturing. The housing with adjustment slot and adjustment slide provides a built-in adjustment capability, enabling the system to adapt to varying seating positions and environmental conditions while maintaining straightforward manufacturing processes for the individual components.
Data Source
AI summary
A door check system of a vehicle includes a door check assembly having a check body securable to a door of the vehicle, a check link extending through a check body opening of the check body and an adjustment mechanism positioned at a body of the vehicle. The adjustment mechanism includes a housing defining a housing opening, and an adjustment slide positioned in the housing opening and slidable moveable therein. The adjustment slide is secured to the check link. An adjustment feature is secured to the adjustment slide and extends through an adjustment slot in the housing. Moving the adjustment feature along the adjustment slot moves the adjustment slide in the housing opening to change an effective length of the check link.