Lean-Turn Vehicle Headlight Layout With Integrated Subheadlight Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing headlight systems for vehicles that lean into turns face challenges in downsizing while maintaining high durability and wide illumination range, due to increased volume from auxiliary light sources and complex wiring arrangements.
Innovation Solution
A headlight system that integrates a control device with the subheadlight, utilizing the space created around the subheadlights for wiring reduction and downsizing, while maintaining the durability and illumination range of a fixed-and-additive-type headlight system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If auxiliary light sources are added to illuminate the inner side of the curve, then the illumination range is improved, but the volume of the headlight system increases
Solution Approach 1:
The control device is merged with the sub headlight assembly, utilizing the existing space around the light sources to house the control electronics. This integration eliminates the need for separate control device housing and reduces overall system volume while maintaining the expanded illumination range provided by multiple light sources
Solution Approach 2:
The control device is nested within the headlight system structure, specifically positioned in the space created by the arrangement of multiple light sources. This nesting approach allows the control device to occupy otherwise unused space, reducing the external volume of the headlight system while maintaining all functional components
2Area of stationary object
If multiple light sources are used to expand illumination range, then the illumination coverage is improved, but the wiring complexity increases
Solution Approach 1:
The control device that manages multiple light sources is integrated into the headlight assembly, combining the control function with the lighting components. This integration reduces wiring complexity by minimizing the distance and number of connections between the control device and light sources, while maintaining the ability to independently control each light source for expanded illumination coverage
3Area of stationary object
If auxiliary light sources and control device are added, then the illumination range is improved, but the durability is reduced
Solution Approach 1:
The control device is integrated with the sub headlight assembly, creating a unified structure that reduces the number of separate components and connection points. This integration improves durability by eliminating additional wiring harnesses and connection interfaces that would be potential failure points, while maintaining the expanded illumination range through the coordinated operation of multiple light sources
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A headlight system for a vehicle (10) that leans into turns includes: a main headlight (11) configured to be turned on irrespective of inclination of the vehicle (10) and illuminate an area ahead; a sub headlight (13) including a plurality of light sources (13La-13Rc) and a lamp body (22) that supports the light sources (13La-13Rc), the plurality of light sources (13La-13Rc) being configured to be turned on when the vehicle (10) is inclined; and a control device (21) supported on the lamp body (22), the control device (21) being configured to, when the vehicle (10) is inclined to the right with respect to a width direction of the vehicle (10), turn on among the plurality of light sources (13La-13Rc) a light source that illuminates an area ahead and to the right of the vehicle (10) with respect to the width direction of the vehicle (10), and when the vehicle (10) is inclined to the left with respect to the width direction of the vehicle (10), turn on among the plurality of light sources (13La-13Rc) a light source that illuminates an area ahead and to the left of the vehicle (10) with respect to the width direction of the vehicle (10).