Vehicle Headlight Control Unit for Personalized Light Distribution
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Solution Overview
Problem
Existing headlight systems lack the ability to allow users to adjust light distribution in a user-defined manner efficiently and safely, particularly in bright ambient conditions, and do not prevent driver distraction during setting adjustments.
Innovation Solution
A device comprising a first control unit for adjusting light distribution, coupled with a second control unit and input device for user settings, which generates control data to adjust the light distribution, and includes an authentication module and display unit for secure and intuitive adjustments, ensuring only authorized users can modify settings, and input is restricted to when the vehicle is not in motion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a manual operating element is used for basic headlight adjustment, then the adjustment functionality is provided, but the user cannot define personalized light distribution settings
Solution Approach 1:
The control unit is designed to perform multiple functions: it processes signals from the manual operating element for basic adjustment, receives and processes user settings from input devices for personalized adjustment, and transmits control signals to actuating units. This multi-functionality enables personalized light distribution without requiring separate dedicated hardware for each function.
Solution Approach 2:
The control unit acts as an intermediary between the manual operating element/input device and the actuating units. It receives signals from various input sources, processes them according to the selected adjustment mode (basic or personalized), and generates appropriate control signals for the actuating units, thereby enabling flexible personalized adjustment.
2Ease of operation
If the input device is always activated for adjusting light distribution, then user convenience is improved, but driver distraction occurs during driving
Solution Approach 1:
The activation state of the input device is dynamically controlled based on the vehicle's motion state. The control unit receives signals from the evaluation unit about whether the vehicle is moving or stationary, and accordingly activates or deactivates the input device. This dynamic adaptation allows easy adjustment when the vehicle is stationary while preventing distraction during driving.
Solution Approach 2:
The system incorporates feedback from the evaluation unit about the vehicle's motion state to control the activation of the input device. The control unit continuously monitors the vehicle state and adjusts the input device availability accordingly, providing feedback-based safety control that prevents distraction while maintaining accessibility when appropriate.
3Loss of information
If the display shows light distribution simulation in bright ambient conditions, then user comprehension is improved, but the generated light distribution on road surface cannot be seen
Solution Approach 1:
Instead of relying on the user to see the actual light distribution on the road surface, the system creates a visual copy or simulation of the light distribution pattern on the display unit. This simulation allows the user to comprehend the light distribution settings even when the actual road surface illumination is not visible due to bright ambient conditions.
Solution Approach 2:
The system transitions the light distribution information from the physical dimension (actual light on road surface) to a different dimension (visual simulation on display screen). This dimensional change allows the user to view and comprehend light distribution settings independently of the actual illumination conditions on the road.
Data Source
AI summary
A device for adjusting the light distribution of a vehicle headlight with a plurality of light sources, includes a first control unit for adjusting the light distribution. The first control unit is coupled to a second control unit, the second control unit being coupled to at least one input device for inputting user settings for adjusting the light distribution in a user -defined manner and/or includes at least one interface for coupling to at least one input device of this type, the second control unit generating control data from the user settings and transmitting the control data to the first control unit in order to adjust the light distribution.