Vehicle Collision Avoidance Control With Preemptive Braking

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Solution Overview

Problem

Existing vehicle collision avoidance systems, such as AEB, face challenges in high-speed driving, where sudden braking reduces driver convenience and increases rear-end collision risk, necessitating a method that enhances safety and convenience by preemptive braking.

Innovation Solution

A method and system that combines existing AEB and cruise control functions to implement preemptive braking based on collision risk prediction, using sensors to detect front vehicles and driver attentiveness, issuing warnings and controlling vehicle deceleration to maintain safe distances, thereby reducing the need for sudden braking.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If AEB system operates at high speed with high sensitivity, then collision risk with front vehicle is reduced, but driver convenience deteriorates due to sudden braking

Engineering Contradiction:

Improvecollision risk reductionVSAvoiddriver convenience

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The system performs preliminary risk assessment and preemptive braking before a collision becomes imminent. By calculating collision risk in advance and applying gradual deceleration when risk exceeds thresholds, the system prevents sudden emergency braking while maintaining safety, thus resolving the contradiction between collision risk reduction and driver convenience.

Inventive Principle:

Principle #10Preliminary action

2Reliability

If AEB system operates at high speed with high sensitivity, then collision risk with front vehicle is reduced, but rear-end collision risk increases

Engineering Contradiction:

Improvefront collision risk reductionVSAvoidrear-end collision risk

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The system dynamically adjusts braking intensity based on real-time collision risk assessment. Instead of applying fixed high-sensitivity braking, the controller gradually increases deceleration force as risk thresholds are exceeded, enabling smooth stop that reduces front collision risk while minimizing impact on following vehicles.

Inventive Principle:

Principle #15Dynamics

3Ease of operation

If preemptive braking is applied, then driver convenience is improved, but braking distance increases

Engineering Contradiction:

Improvedriver convenienceVSAvoidbraking distance

Core Design Contradiction:

Ease of operationVSLength of moving object

Solution Approach 1:

The system applies periodic risk assessment and incremental braking adjustments rather than continuous maximum deceleration. By monitoring risk thresholds and applying graduated braking force in stages, the system extends braking distance smoothly while maintaining driver comfort and eventual collision avoidance.

Inventive Principle:

Principle #19Periodic action

Data Source

PatentUS20260014978A1Method and system for controlling vehicle for collision avoidance

Publication Date: 2026.01.15 HL KLEMOVE CORP

AI summary

A method and a system for controlling an electric bicycle are provided, and the method for controlling a vehicle for collision avoidance according to an embodiment of the present disclosure comprises: recognizing a front vehicle ahead of an ego vehicle; determining a collision risk between the ego vehicle and the front vehicle; determining a degree of a driver's attentiveness of the ego vehicle; determining whether deceleration of the ego vehicle is required; determining whether the collision risk, the degree of the driver's attentiveness, and whether the deceleration is required satisfy predetermined conditions; and if said predetermined conditions are satisfied, operating a driver assistance function.