Vehicle Lamp Tool Inclination Correction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional vehicle lamp tools are inadequate in adjusting light distribution patterns to match the inclination of two-wheeled vehicles during curves or when the vehicle is on an inclined road, and they also fail to adapt to the bank angle of the road.
Innovation Solution
A vehicle lamp tool that includes an inclination angle detection system using vehicle height sensors and gyro sensors to calculate the vehicle's inclination, allowing for rapid adjustment of the light distribution pattern through both image correction and mechanical rotation, ensuring the light distribution follows the vehicle's inclination and road bank angle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional vehicle lamp tools are used without inclination detection, then the device complexity is reduced, but the adaptability to vehicle inclination and road bank angle deteriorates
Solution Approach 1:
The patent replaces complex mechanical inclination adjustment mechanisms with an optical correction system. The light distribution pattern is corrected optically by adjusting the projection angles of the projector based on detected inclination angles, eliminating the need for mechanical rotation of the entire lamp assembly while achieving the same adaptability effect
Solution Approach 2:
The patent introduces an intermediary correction system between the light source and the road surface. By detecting vehicle inclination and calculating corresponding projection angle corrections, the system mediates between the fixed lamp structure and the variable road conditions, enabling adaptability without direct mechanical coupling
2Adaptability or versatility
If mechanical rotation units are used to adjust light distribution pattern inclination, then the adaptability to vehicle inclination is improved, but the response speed deteriorates due to mechanical inertia
Solution Approach 1:
The patent substitutes mechanical rotation of the light distribution pattern with optical projection angle adjustment. The projector electronically changes its projection angles based on inclination detection, eliminating mechanical inertia and achieving instantaneous response to vehicle inclination changes while maintaining full adaptability
Solution Approach 2:
The patent implements a dynamic correction system where the projection angles are continuously adjusted in real-time based on detected inclination angles. This dynamic optical adjustment replaces static mechanical positioning, enabling the light distribution pattern to adapt instantly to changing vehicle attitudes without mechanical delay
3Adaptability or versatility
If the light distribution pattern is corrected by rotating the mechanical rotation unit, then the adaptability to road bank angle is improved, but the productivity is reduced due to additional mechanical components
Solution Approach 1:
The patent replaces mechanical rotation components with an electronic projection angle control system. The projector adjusts its projection angles through electronic control based on detected bank angles, eliminating the need for additional mechanical rotation units and maintaining high productivity while achieving full adaptability to road conditions
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables prompt and accurate adjustment of the light distribution pattern to prevent dazzling of oncoming vehicles and maintain optimal illumination, even in scenarios where the vehicle is significantly inclined, effectively addressing the limitations of conventional systems.
Implementation Method 1
a wavelength conversion member (8), on which a two-dimensional image corresponding to a predetermined light distribution pattern is drawn by the excitation light ray
Implementation Method 2
a light deflector, which scans, in a two-dimensional manner (in a horizontal direction and a vertical direction), an excitation light ray from the excitation light source
Data Source
Figure 1
Figure 2A~2B
Figure 3A~3C
AI summary
A vehicle lamp tool 1 provided with: a controller 12 which calculates the luminance distribution of light distribution pattern; an optical device 2 which generates light distribution pattern in an illuminatable area D; and a first driving circuit 14a which drives the optical device 2. The controller 12 transmits a first light distribution correction signal for correcting the inclination of a current light distribution pattern to the first driving circuit 14a if the inclination angle of a vehicle with respect to vertical direction indicated by a detection signal received from a vehicle height sensor 18 is equal to or less than a threshold value. The first driving circuit 14a transmits a first correction driving signal based on the first light distribution correction signal to the optical device 2. The optical device 2 drives an LD 6 and a light deflector 7 to correct the current light distribution pattern.