Adaptive Vehicle Headlights Trajectory Illumination Control

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Solution Overview

Problem

Existing systems fail to dynamically adjust vehicle headlights to ensure optimal illumination along a planned trajectory, considering varying natural and artificial light sources, which can impact driver safety and comfort, especially in changing environments.

Innovation Solution

A computing system that utilizes camera, lidar, and GPS data to estimate the vehicle's position and illumination needs, adjusting headlight settings and alerting the driver when necessary to maintain sufficient lighting, while avoiding physical limitations of the headlights.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If headlight illumination is increased to improve visibility along the vehicle trajectory, then driver safety and night vision are enhanced, but energy consumption increases and physical limitations of the headlight may be exceeded

Engineering Contradiction:
Improveheadlight illuminationVSAvoidenergy consumption
Core Design Contradiction:
Illumination intensityVSUse of energy by moving object

Solution Approach 1:

The headlight illumination is dynamically adjusted based on real-time trajectory analysis and environmental conditions. The system continuously adapts the illumination intensity along the planned vehicle path rather than maintaining a fixed high level, optimizing visibility while reducing unnecessary energy consumption when full illumination is not required.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system applies illumination selectively along the specific trajectory path rather than uniformly in all directions. By analyzing the planned vehicle trajectory and identifying which segments require illumination, the system concentrates lighting resources on critical areas while reducing or eliminating illumination in well-lit or irrelevant zones, thereby reducing overall energy consumption.

Inventive Principle:
Principle #3Local quality

2Adaptability or versatility

If headlight settings are adjusted to match varying illumination conditions along the trajectory, then driver comfort and safety are improved, but device complexity increases

Engineering Contradiction:
Improveadaptation to illumination conditionsVSAvoidsystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system integrates multiple functions into a unified headlight control mechanism that simultaneously performs trajectory analysis, environmental illumination assessment, and adaptive headlight adjustment. By making the headlight system multi-functional, the patent reduces overall system complexity despite the increased adaptability, as a single integrated system is more efficient than multiple separate systems working in parallel.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Reliability

If the system automatically adjusts headlight settings along the planned trajectory, then driver safety is enhanced, but the extent of automation increases system complexity

Engineering Contradiction:
Improvedriver safetyVSAvoidautomatic headlight adjustment
Core Design Contradiction:
ReliabilityVSExtent of automation

Solution Approach 1:

The system implements a feedback mechanism where the planned vehicle trajectory and environmental illumination conditions are continuously monitored, and headlight settings are automatically adjusted based on this feedback. The system analyzes the trajectory, assesses illumination needs along the path, and makes real-time adjustments to maintain optimal visibility, thereby enhancing driver safety through automated control that responds dynamically to changing conditions.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS11351913B2Adaptive headlights for the trajectory of a vehicle
Publication Date: 2022.06.07 INTERNATIONAL BUSINESS MACHINE CORPORATION
  • US11351913B2 patent drawing
  • US11351913B2 patent drawing
  • US11351913B2 patent drawing

AI summary

In an approach for determining the illumination necessary along a vehicle's planned trajectory, a processor receives information relevant to the trajectory of a vehicle. A processor estimates the position of the vehicle at the particular time on the trajectory of the vehicle, using the data from the sensors. A processor estimates an illumination of the trajectory of the vehicle, using the model of the illumination of the road network and the data from the sensors, wherein a threshold is employed. A processor determines the threshold is exceeded. A processor changes a setting of the at least one headlight on the vehicle. A processor determines the threshold is exceeded. A processor alerts the user of the vehicle when adjustments to the at least one headlight that are necessary to illuminate the trajectory of the vehicle exceed physical limitations of the at least one headlight.