Auxiliary Headlamp Control for Single-Person Inspection
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Solution Overview
Problem
Conventional lighting control systems for auxiliary headlamps require multiple people to inspect the lamps while the vehicle is moving, making it difficult to perform daily inspections efficiently, as they are designed to be illuminated only when the vehicle is in motion.
Innovation Solution
A lighting control device and method that includes an ignition ON state detecting means, a time measuring means, and a stopped state detecting means to permit the illumination of the auxiliary headlamp when the vehicle is stopped, allowing for controlled inspection by enabling the lamps to be turned on and off manually.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the auxiliary headlamp is controlled to illuminate only when the vehicle is moving, then the lighting control system maintains safety and compliance with conventional operation modes, but the inspection process requires multiple people and becomes difficult to perform efficiently
Solution Approach 1:
The system dynamically adjusts the illumination control logic based on vehicle state. When the vehicle is moving, the auxiliary headlamp follows conventional steering-angle-based control. When the vehicle is stopped and ignition is ON, the system automatically enables illumination after a predetermined time period, allowing single-person inspection without compromising safety during actual driving
2Reliability
If the auxiliary headlamp illuminates only when predetermined conditions are met during vehicle movement, then the lighting system operates according to conventional safety protocols, but the inspection cannot be performed when the vehicle is stopped
Solution Approach 1:
The system performs preliminary action by enabling the auxiliary headlamp illumination in advance during the inspection phase. When the vehicle is stopped with ignition ON, the system activates illumination after a predetermined time period, allowing the inspector to check the lamp functionality before the vehicle starts moving, thus eliminating the need for time-consuming multi-person inspection during vehicle operation
3Measurement precision
If multiple people are required to inspect the auxiliary headlamp while the vehicle is moving, then the inspection can be performed according to conventional procedures, but the inspection efficiency decreases and requires more personnel
Solution Approach 1:
The system enables self-service inspection by allowing the inspector to independently activate and check the auxiliary headlamp functionality while the vehicle is stopped. The control system automatically manages the illumination activation based on vehicle state and time conditions, eliminating the need for multiple people to manually operate the vehicle during inspection while maintaining accurate functionality verification
Data Source
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AI summary
In a headlamp luminance controlling device, the controlling section (15) measures an elapse of time using a control permission timer (16) after an ignition switch (IG 1) is turned ON. Then, the controlling section (15) permits daily inspection control of auxiliary headlamps (2a and 2b) when a shift lever position is park (P) and a speed that is not a constant value or more is detected (the speed is "0") within a predetermined amount of time measured by the control permission timer (16), based on speed information from a speed sensor (12) and position information from a shift lever controller (13). In other words, the controlling section (15) can allow daily inspection control that allows the ON and OFF of the auxiliary headlamp 2a and the auxiliary headlamp 2b to be controlled by manual operation.