Remote Seat Latch Actuator with Position Sensor Feedback
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Solution Overview
Problem
Current vehicle seat systems with 'fold' or 'fold-and-tumble' features require manual release of latches, which is inconvenient and difficult for users with inadequate hand strength, necessitating a remote release actuation system for improved accessibility.
Innovation Solution
A remote release system comprising an actuator connected to the latch mechanism, a switch, a position sensor, and a control mechanism, such as an electronic control module, that allows users to activate the latch release via a switch, with the position sensor monitoring the latch position and controlling the actuator to return to a home position after the desired function is achieved.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual release of latch is used, then device complexity is reduced, but ease of operation deteriorates
Solution Approach 1:
The patent replaces the purely mechanical manual release system with an electromechanical system. An actuator (electromechanical component) is introduced to remotely actuate the latch mechanism, substituting the need for direct manual manipulation of the latch. This allows users to release the latch without physically reaching or manually operating it, improving ease of operation while accepting increased device complexity through the addition of the actuator and control system.
2Ease of operation
If remote release actuation system is implemented, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The patent introduces an intermediary actuator mechanism that mediates between the user's remote control input and the latch mechanism. The actuator serves as a mediator that converts remote actuation forces into the mechanical motion needed to release the latch. This intermediary approach allows the system to maintain improved ease of operation through remote release while managing device complexity by using a standardized actuator component rather than a fully custom system.
3Ease of operation
If actuator is added for remote release, then ease of operation is improved, but use of energy increases
Solution Approach 1:
The patent implements periodic or intermittent actuation rather than continuous operation. The actuator is activated only when the user needs to release the latch, rather than running continuously. This periodic action approach maintains improved ease of operation by providing on-demand remote release capability while reducing overall energy consumption by keeping the actuator inactive during normal latched states.
Data Source
AI summary
A system and method for remote release actuation is disclosed. The system includes a control mechanism, a switch, a power supply, an actuator assembly, a position sensor, a ground, a cable, and a latch mechanism. The method includes the steps of: providing a remote release actuating system; powering the control mechanism with the power supply; powering the position sensor via the control mechanism; and using the control mechanism to check the electrical connection of the position sensor and powering the actuator assembly to release the cable which releases the latch mechanism into a home position if the position sensor is not connected.