Vehicle Collision Prevention Apparatus with Following Vehicle Warning
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Solution Overview
Problem
Existing vehicle collision prevention systems face challenges in reducing the likelihood of rear-end collisions with following vehicles while minimizing collisions and damage from frontward obstructions, as they often require a strict design that limits brake force reduction, making it difficult to effectively prevent both types of collisions simultaneously.
Innovation Solution
A vehicle collision prevention apparatus that includes frontward obstruction and following vehicle detection units, collision likelihood calculation units, a braking processing determination unit, and a following vehicle warning unit, which calculates and warns of potential collisions to adjust brake force and issue warnings before activating the brake apparatus, thereby reducing the likelihood of collisions with both frontward and rearward obstructions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If brake operation is delayed until vicinity of limit point, then driver dependency is reduced, but collision response time is reduced
Solution Approach 1:
The system issues preliminary warnings to the following vehicle before the host vehicle reaches the limit point for brake activation. This allows the following vehicle to prepare for potential braking maneuvers in advance, extending the effective response time while still maintaining the strategy of delayed brake activation to prevent driver dependency.
Data Source
AI summary
When a following vehicle approaches a host vehicle, a following vehicle warning unit that issues a warning to the following vehicle on the basis of the likelihood of a front end collision, calculated by a front end collision likelihood calculation unit and the likelihood of a rear end collision, calculated by a rear end collision likelihood calculation unit, issues a warning to the following vehicle before activating a brake apparatus of the host vehicle at a brake force determined by a braking processing determination unit that determines a brake force required to prevent a collision between the host vehicle and a frontward obstruction on the basis of the likelihood of a front end collision.