Motorized Conveyance Seat Timing Control for Slide-Rotation Transitions
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Solution Overview
Problem
There is a lack of vehicle seats that effectively combine motorized rotational and slide movements, making it difficult to control both movements simultaneously and efficiently.
Innovation Solution
A conveyance seat with a control unit that coordinates the operation of both slide and rotation mechanisms, allowing for synchronized or staggered transitions based on predicted completion times, and an operation unit that instructs the control unit to start the transitions at optimal times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If both slide mechanism and rotation mechanism are motorized, then the seat can perform both slide movement and rotational movement, but it becomes difficult to control the timing of both movements simultaneously
Solution Approach 1:
The control unit monitors the operational state of both the slide mechanism and rotation mechanism, and adjusts their activation timing based on real-time feedback. This ensures coordinated operation by detecting whether one mechanism has completed its transition before initiating the other, thereby resolving the timing control difficulty while maintaining full motorized functionality.
2Reliability
If the transition of one mechanism is waited to complete before starting the other mechanism, then the operation is stable, but the total transition time is prolonged
Solution Approach 1:
The control unit initiates the transition of the second mechanism (either slide or rotation) before the first mechanism has fully completed its transition. By calculating predicted completion times and starting the second mechanism in advance, the system overlaps the transition periods of both mechanisms, thereby reducing the total transition time while maintaining operational stability through continuous monitoring and adjustment.
Data Source
AI summary
There is provided a conveyance seat that allows the slide movement and the rotational movement of a seat body to be started at appropriate timings. A conveyance seat includes a seat body in which an occupant is seated; a slide mechanism that moves the seat body in a sliding manner; a rotation mechanism that rotationally moves the seat body with an up to down direction as a rotation axis; a control unit that controls an operation of the slide mechanism and the rotation mechanism; and an operation unit that instructs the control unit to start control. When the control unit receives an instruction from the operation unit, the control unit sets a transition start time of each of the slide mechanism and the rotation mechanism.