Vehicle Headlight Control Device for Turning Maneuver Glare Reduction
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Solution Overview
Problem
Existing control devices for motor vehicle headlights fail to automatically provide dimmer light distributions for vehicles ahead or oncoming vehicles during turning maneuvers in a timely manner, leading to potential glare for vehicle operators due to delays and limitations in recognition systems.
Innovation Solution
A control device with additional interfaces to indicate the start of a turning maneuver and vehicle speed, maintaining a dimmed light distribution for a predetermined time or distance, ensuring continuous dimming until the vehicle is no longer recognized, thereby preventing excessive glare.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the control device switches to high-beam distribution when vehicle leaves recognition area, then lighting efficiency is improved, but glare occurs when vehicle re-enters during turning maneuver
Solution Approach 1:
The control device performs preliminary action by maintaining dimmed light distribution for a predetermined time period after the vehicle leaves the recognition area. This preliminary maintenance of dimmed state prevents glare from occurring when the vehicle re-enters the recognition area during turning maneuvers, while still allowing high-beam distribution to be used most of the time for improved lighting efficiency.
2Measurement precision
If the recognition system continuously monitors for vehicles, then detection accuracy is improved, but response delay occurs during turning maneuvers
Solution Approach 1:
The system performs preliminary action by proactively maintaining dimmed light distribution for a predetermined time period after vehicle departure from recognition area. This eliminates the need for real-time detection during the turning maneuver itself, as the preliminary dimmed state is already in place, thereby resolving the response delay while maintaining detection accuracy through the recognition system.
3Object-affected harmful factors
If the control device maintains dimmed light distribution longer, then glare prevention is improved, but energy consumption increases
Solution Approach 1:
The control device applies preliminary action by maintaining dimmed light distribution for a predetermined, limited time period only when necessary (after vehicle leaves recognition area during turning maneuvers). This prevents glare during the critical re-entry period while avoiding excessive energy consumption by automatically switching back to high-beam distribution after the predetermined time expires, thus balancing glare prevention with energy efficiency.
Data Source
AI summary
A control device for a first motor vehicle, and for dimming lights for vehicles ahead and/or oncoming vehicles during turning maneuvers includes a first interface with a recognition device for the purpose of recognizing vehicles ahead and/or oncoming vehicles, a second interface with headlights, wherein the control device selects different light distributions of the headlights and generates an adjusting signal at the second interface for adjusting the selected light distribution at the headlights to dim the headlights if a signal is present at the first interface indicating at least one vehicle ahead or oncoming. The control device has a third interface for indicating the start of the recognition of a turning maneuver of a vehicle ahead, wherein the dimmed light distribution of the headlights remains set for a predetermined distance or a predetermined time if the signal is present.