Vehicle Seat Pinch Control With Obstacle Classification
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Solution Overview
Problem
Existing vehicle seat systems fail to differentiate between different types of objects or occupants when pinching occurs, leading to inadequate release of pinched states, especially when items or occupants are trapped between seats.
Innovation Solution
A vehicle seat system equipped with a pinch detection part, obstacle detection part, and control part that classify obstacles based on size and presence of a heartbeat to adjust the reversal movement amount and stop the seat's electric device before pinching occurs, ensuring appropriate action based on the detected obstacle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the seat performs a fixed reversal action when pinching is detected, then the reversal action can be executed quickly, but the pinched object may not be completely freed if the reversal distance is insufficient
Solution Approach 1:
The patent applies dynamics by making the reversal movement amount variable rather than fixed. The control part adjusts the reversal movement amount based on the classification results from the obstacle detection part. Different types of obstacles (adult, child, object) trigger different reversal distances, allowing the system to adapt the reversal action to the specific situation while maintaining quick response.
2Reliability
If the seat performs a large reversal movement to ensure all objects are freed, then pinch release reliability improves, but the seat may move excessively when only small objects are pinched
Solution Approach 1:
The patent applies local quality by providing different reversal movement amounts for different types of obstacles. Instead of using a uniform large reversal movement for all cases, the system tailors the reversal distance to the specific obstacle type detected. This ensures adequate release for each situation without excessive movement when not needed.
3Adaptability or versatility
If the system classifies obstacles to determine appropriate reversal actions, then the ability to respond to different pinching objects improves, but the device complexity increases
Solution Approach 1:
The patent applies universality by using a single obstacle detection part that performs multiple functions: detecting obstacles, classifying them into different types (adult, child, object), and providing classification information to the control part. This multi-functional approach enables differentiated responses to various obstacles without requiring separate detection systems for each obstacle type.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system effectively prevents pinching by adjusting seat movements based on the type of obstacle, ensuring safety for children and adults while maintaining functionality, thereby enhancing vehicle habitability.
Implementation Method 1
a pinch detection part detecting an obstacle being pinched by detecting a load change of the electric device when the seat is moved
Data Source
AI summary
The invention provides a seat device for a vehicle and a control method thereof. The seat device for the vehicle includes: an electric device for moving a seat of the vehicle; a pinch detection part detecting an obstacle being pinched by detecting a load change of the electric device when the seat is moved; an obstacle detection part classifying the obstacle in a moving direction of the seat; and a control part controlling the electric device according to a classification of the obstacle.