Vehicle Seat Coordinate Control for Multi-Seat Interference Prevention
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Solution Overview
Problem
Existing vehicle seat control systems face challenges in integrated control of multiple seats, leading to potential interference and collisions due to reliance on CAN communication, which is prone to errors, and lack flexibility for future seat integrated controllers.
Innovation Solution
A vehicle seat control apparatus and method utilizing a coordinate logic to calculate interference coordinates for each seat, integrating control through a high-performance electronic control unit (ECU) to prevent collisions by coordinating seat movements based on calculated interference ranges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If CAN communication is used to share seat position information, then seat position data can be transmitted between seats, but the system becomes prone to communication errors and network failures
Solution Approach 1:
The patent extracts the seat control function from the complex CAN communication network and implements it locally within each seat's control unit. Each seat independently determines its own interference status using local sensors and control logic, eliminating dependence on network communication for basic control operations. This reduces communication errors while maintaining seat coordination capabilities.
2Ease of operation
If a single controller is applied to every seat, then individual seat control is simplified, but integrated control of multiple seats becomes difficult
Solution Approach 1:
The patent implements a universal control unit that can function both as an independent seat controller and as part of an integrated multi-seat control system. The control unit contains embedded interference determination logic that enables it to coordinate with other seats while maintaining individual seat control capabilities. This multi-functional design allows seamless transition between independent and integrated operating modes.
Solution Approach 2:
The control unit continuously monitors seat position, motion state, and interference conditions through feedback from sensors and communication with other seats. Based on this feedback, the control unit dynamically adjusts control commands to prevent interference while maintaining ease of operation. The feedback mechanism enables integrated control without compromising individual seat operability.
3Device complexity
If interference determination is performed only for specific seats or functions, then control logic is simplified, but comprehensive interference prevention is insufficient
Solution Approach 1:
The control unit performs preliminary interference determination before executing seat motion commands. By calculating potential interference coordinates in advance and comparing them with actual seat positions, the system prevents interference proactively rather than reacting after it occurs. This preliminary action approach maintains simple control logic while significantly improving interference prevention reliability.
Data Source
AI summary
A vehicle seat control apparatus according to an exemplary embodiment includes a coordinate calculating unit which calculates an interference coordinate based on a current position of a motion seat, among a plurality of seats in a vehicle; a position determining unit which determines whether the motion seat and the other seat interfere with each other using the interference coordinate; and a controller which selectively controls the motion seat or the other seat depending on whether the motion seat and the other seat interfere with each other.