Adaptive Vehicle Lamp Control for Distance-Based Beam Masking

Solution Overview

Problem

Existing adaptive driving beam (ADB) systems waste power by maintaining unnecessary light emission, leading to inefficient energy consumption, despite providing adequate visibility.

Innovation Solution

A lamp system for moving objects that adjusts light output based on distance from a preceding vehicle using a sensor unit and control unit to set masking areas and control light quantity, reducing power consumption while maintaining visibility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If the ADB system maintains high beam output to secure visibility, then driver visibility is improved, but power consumption increases due to unnecessary light emission

Engineering Contradiction:

ImprovevisibilityVSAvoidpower consumption

Core Design Contradiction:

Illumination intensityVSUse of energy by moving object

Solution Approach 1:

The patent applies dynamics by making the light output adjustable and adaptive rather than fixed. The control unit dynamically modifies the beam output based on real-time sensing data about preceding vehicles, changing the illumination characteristics from static to dynamic to match actual driving conditions

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent applies local quality by selectively dimming or masking specific regions of the beam pattern rather than uniformly reducing all light output. The control unit identifies precise areas causing glare to preceding vehicles and applies masking only to those local regions, while maintaining full illumination in areas that do not cause glare

Inventive Principle:

Principle #3Local quality

Solution Approach 3:

The patent applies parameter changes by modifying the illumination parameters (brightness, distribution pattern) based on detected conditions. The control unit adjusts beam intensity and distribution characteristics in response to preceding vehicle detection, changing physical parameters of light emission to balance visibility and energy consumption

Inventive Principle:

Principle #35Parameter changes

2Use of energy by moving object

If the ADB system reduces light output to save power, then power consumption is reduced, but visibility may be compromised

Engineering Contradiction:

Improvepower consumptionVSAvoidvisibility

Core Design Contradiction:

Use of energy by moving objectVSIllumination intensity

Solution Approach 1:

The patent applies local quality by selectively dimming or masking specific regions of the beam pattern rather than uniformly reducing all light output. The control unit identifies precise areas causing glare to preceding vehicles and applies masking only to those local regions, while maintaining full illumination in areas that do not cause glare

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The patent applies parameter changes by modifying the illumination parameters (brightness, distribution pattern) based on detected conditions. The control unit adjusts beam intensity and distribution characteristics in response to preceding vehicle detection, changing physical parameters of light emission to balance visibility and energy consumption

Inventive Principle:

Principle #35Parameter changes

3Illumination intensity

If the lamp emits full light to ensure adequate visibility coverage, then visibility is maintained, but unnecessary light emission causes power waste

Engineering Contradiction:

Improvevisibility coverageVSAvoidpower waste

Core Design Contradiction:

Illumination intensityVSLoss of energy

Solution Approach 1:

The patent applies local quality by selectively dimming or masking specific regions of the beam pattern rather than uniformly reducing all light output. The control unit identifies precise areas causing glare to preceding vehicles and applies masking only to those local regions, while maintaining full illumination in areas that do not cause glare

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The patent applies parameter changes by modifying the illumination parameters (brightness, distribution pattern) based on detected conditions. The control unit adjusts beam intensity and distribution characteristics in response to preceding vehicle detection, changing physical parameters of light emission to balance visibility and energy consumption

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS20250264203A1Lamp system for moving objects and its control method

Publication Date: 2025.08.21 HYUNDAI MOBIS CO LTD

AI summary

Provided are a lamp system for moving objects and its control method, and more particularly, the system including: a light source unit including a plurality of light sources, and generating a beam of a predetermined shape and outputting the generated beam to outside a vehicle; a sensor unit including at least one of a camera sensor and a radar sensor, and providing sensing data of a preceding vehicle; and a control unit controlling the output of the light source unit based on the sensing data received from the sensor unit, wherein the control unit calculates a separation distance of the vehicle from the preceding vehicle based on the sensing data received from the sensor unit, and controls the output of the light source unit based on the calculated separation distance.