Vehicle Door Lock Indicator Controller Dynamics
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Solution Overview
Problem
Existing vehicle door lock indicator systems face issues where the door state becomes unclear after a predetermined time, leading to potential erroneous identification of the door as locked when it is actually unlocked, causing unintended door opening.
Innovation Solution
A controller that includes an electric actuator, lock state detection means, and energization control means to maintain the electric display's energized state as long as the lock state detection indicates the door is unlocked, even after a predetermined time has elapsed, ensuring the unlocked state is clearly displayed when the power source is ON.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If energization of the electric display means is cut off after a predetermined time has elapsed, then power consumption is reduced, but the door state becomes unclear and erroneous identification occurs
Solution Approach 1:
The patent applies dynamics by making the display energization duration variable rather than fixed. The display remains energized for a predetermined time after unlocking, and then transitions to remaining energized only while the door remains unlocked. This dynamic adjustment of energization duration based on door state resolves the contradiction by optimizing power consumption while maintaining reliable door state indication.
Solution Approach 2:
The patent changes the parameter of display energization duration based on the door lock state. When the door is unlocked, the display remains energized indefinitely; when locked, it energizes only for a predetermined time. This parameter change resolves the contradiction by adapting the energization duration to the operational context, reducing power waste while ensuring accurate door state visibility.
2Loss of energy
If the electric display means is switched OFF after a predetermined time, then power is saved, but the unlocked state cannot be confirmed and the door may be opened erroneously
Solution Approach 1:
The patent implements feedback by continuously monitoring the door lock state through detection means and adjusting the display energization accordingly. The system receives feedback from the lock state detection and maintains display energization as long as the door remains unlocked, ensuring continuous visibility of the door state while avoiding unnecessary power consumption when the door is locked.
Solution Approach 2:
The patent applies preliminary action by pre-setting a predetermined time period after unlocking during which the display remains energized. This preliminary energization period ensures that the door state is visible during the critical transition period, and then the system switches to maintaining energization only while unlocked, balancing power savings with state visibility.
3Loss of information
If the lamp remains ON continuously to show unlocked state, then door state is always visible, but power is consumed unnecessarily
Solution Approach 1:
The patent applies periodic action by energizing the display in periods rather than continuously. The display energizes for a predetermined time after unlocking, then continues energizing only while the door remains unlocked. This periodic energization pattern ensures door state information is available when needed while avoiding continuous power consumption, resolving the contradiction between information availability and energy usage.
Data Source
AI summary
A controller for energizing a vehicle door lock indicator is provided wherein in a power source OFF state, energization of in-vehicle equipment activated by energization is cut off, energization control means cuts off energization of electric display means, energization of which has started at the time of switching when lock state detection means has detected switching from the locked state to the unlocked state, when a predetermined time has elapsed from the time of the switching, and in a power source ON state, energization of the in-vehicle equipment is enabled, as long as the lock state detection means detects the unlocked state, the energization control means continues the energized state of the electric display means even after the predetermined time has elapsed. Thus, when a power source is in an ON state, an unlocked state is clearly displayed, and a door can be prevented from opening undesirably.