Vehicle Light Module Luminance Contrast Control

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing methods for controlling vehicle lamp units do not effectively enhance the visibility of relevant objects in front surroundings under poor visibility conditions by optimizing luminance contrast between objects and their surroundings.

Innovation Solution

A method that adjusts the light intensity of lamp modules based on luminance contrast, increasing intensity for positive contrast and reducing it for negative contrast, and divides the object and its surroundings into subareas to maximize luminance contrast, allowing for optimal illumination adaptation to driving conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If the light intensity is uniformly increased across all areas to improve visibility, then visibility is improved, but energy consumption increases and luminance contrast optimization is compromised

Engineering Contradiction:
ImprovevisibilityVSAvoidenergy consumption of light module
Core Design Contradiction:
Illumination intensityVSUse of energy by moving object

Solution Approach 1:

The system applies local quality by selectively adjusting light intensity only in specific object areas that require improvement, rather than uniformly illuminating the entire field. The control device identifies individual objects with negative contrast and increases light intensity only in those specific regions, thereby improving visibility where needed while minimizing overall energy consumption

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent applies partial action by implementing selective illumination only for detected objects with negative contrast rather than illuminating the entire surroundings. The control device performs partial light intensity adjustment in specific object areas, avoiding excessive energy consumption while achieving sufficient visibility improvement for critical objects

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentUS11285865B2Method for controlling at least one light module of a light unit of a vehicle, light unit, computer programme product, and computer-readable medium
Publication Date: 2022.03.29 HELLA GMBH & CO KGAA
  • US11285865B2 patent drawing
  • US11285865B2 patent drawing
  • US11285865B2 patent drawing

AI summary

A method and device for controlling at least one light module of a lamp unit of a vehicle, comprising a light controller and a surroundings detection device, the front surroundings of the vehicle being illuminated with the aid of the light controller and the light module, depending on an object classified as relevant. The lamp unit has a luminance detection device for detecting the luminances of the detected object classified as relevant in the front surroundings of the vehicle and object surroundings of the front surroundings around this object, and the front surroundings of the vehicle are illuminated, depending on the luminance contrast between the object and the object surroundings.