Independent Lid Lock Control via Push Lifter and Sensor Verification
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Solution Overview
Problem
Existing lid lock devices for battery-powered vehicles require coordination with door lock mechanisms, limiting convenience as they do not allow independent locking or unlocking of the lid.
Innovation Solution
A lid lock device with a push lifter, lid sensor, and control unit that allows independent locking and unlocking of the lid based on verification of an identification code through radio communication, enabling the lid to be operated without synchronizing with door lock states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the lid lock device is integrated with the door lock mechanism, then the locking system is simplified and coordinated, but the lid cannot be locked or unlocked independently, reducing convenience
Solution Approach 1:
The locking system is segmented into independent lid lock and door lock subsystems. The lid lock unit can be controlled separately from the door lock mechanism, allowing independent operation. The control unit receives signals specifically for lid locking/unlocking without requiring door lock coordination,实现ing functional segmentation that improves operational independence.
2Measurement precision
If the lid lock switch is positioned to detect closed lid state, then accurate detection is achieved, but the switch may be accidentally activated during normal lid closing, causing unintended locking
Solution Approach 1:
The control unit performs preliminary verification by checking multiple conditions before activating the lid lock: it verifies the lid is in closed state, checks that the ignition switch is in ON position, and confirms the door is locked. This preliminary action sequence prevents accidental activation during normal lid closing operations while maintaining accurate detection capability.
Solution Approach 2:
The system implements feedback control by continuously monitoring the lid closed state through the lid lock switch and only triggering locking when specific conditions are met. The control unit processes the switch signal in conjunction with other system states (ignition status, door lock status) to provide feedback-based decision making, preventing false activation while maintaining detection precision.
Data Source
AI summary
A lid lock device includes a push lifter which pushes a lid, a lid lock switch which detects whether the lid is pushed, a lid sensor which detects whether the lid is open or closed. A lid lock unit locks the lid when the lid is closed. A verification unit verifies an identification code transmitted from an electronic key. Under a situation in which the verification result of the verification unit indicates that the identification code has been verified and the detection result of the lid sensor indicates that the lid is closed, a control unit activates the lid lock unit to switch the lid between a locked state and an unlocked state when the lid lock switch detects that the closed lid has been pushed.