Vehicle Seat Control for Footrest and Leg-Rest Interference
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Solution Overview
Problem
The simultaneous application of a footrest and leg-rest in vehicle seats often results in interference due to overlapping operations, leading to potential damage and injury, particularly in electric vehicles with autonomous driving technology.
Innovation Solution
A vehicle seat control system with integrated controllers and sensors that monitor seat positions and passenger presence to prevent interference by restricting operations when conditions are met, guiding passengers to adjust their seats to avoid collisions, and allowing operations only when safe.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a footrest and leg-rest are simultaneously applied to vehicle seats, then passenger comfort and relaxation functionality are improved, but interference and collision between the two components occur leading to potential damage and injury
Solution Approach 1:
The control unit receives signals from sensors that detect the operational states of both the footrest and leg-rest, and automatically restricts operation when interference conditions are detected, preventing damage and injury while maintaining the comfort benefits
Solution Approach 2:
A control unit acts as an intermediary between the footrest and leg-rest operations, monitoring their states and mediating their interactions to prevent harmful collisions while allowing both components to function for passenger comfort
2Ease of operation
If automatic sliding and reclining operations are performed in one-touch mode, then ease of operation is improved, but interference between footrest and leg-rest operations causes harmful effects
Solution Approach 1:
The control unit performs preliminary detection of interference conditions before allowing one-touch operations to execute, and preemptively restricts operations that would cause collision between the footrest and leg-rest, preventing harmful effects before they occur
Solution Approach 2:
The system continuously monitors the operational states of both components and uses feedback signals to automatically prevent one-touch operations that would create interference, maintaining ease of operation while eliminating harmful collisions
Data Source
AI summary
A vehicle seat control system includes a front seat, a rear seat associated with the front seat back and forth, a footrest mounted on a rear of a seatback of the front seat, a leg-rest mounted on a seat cushion of the rear seat associated with the front seat back and forth, an individual seat switch unit mounted on the front seat and the rear seat, respectively, and an integrated controller configured to determine current state information of the front seat and the rear seat through sensor units mounted on each of the front seat and the rear seat and to perform interference avoidance control in consideration of current state information of a seat associated with a specific seat when receiving a request for an operation of the footrest or the leg-rest from a switch unit of the specific seat.