Brake Light Pre-Illumination for Predictive Braking Warning
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Solution Overview
Problem
Existing adaptive driving assistance systems (ADAS) in vehicles do not provide sufficient advance warning of braking events, leading to potential rear end collisions due to delayed illumination of brake lights, which exacerbates the 'platooning effect' as following vehicles react too slowly.
Innovation Solution
Implementing a system that determines a likely braking event and generates a request to illuminate brake lights earlier, accompanied by a forward collision warning and prefill request, before actual braking occurs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If brake lights are illuminated only after brake torque has been built up, then false positive illuminations are reduced, but advance warning to following vehicles is insufficient
Solution Approach 1:
The system performs preliminary action by illuminating the brake light before actual braking occurs. When the ADAS determines that braking is likely to occur in the near future, the brake light is illuminated in advance to provide following vehicles with maximum notice, while the electronic processor subsequently generates a prefill request to prepare the braking system.
2Loss of time
If brake lights are illuminated earlier to provide advance warning, then following vehicles have more reaction time, but false positive illuminations increase
Solution Approach 1:
The system uses preliminary action by illuminating the brake light based on predictive determination that braking is likely to occur, rather than waiting for actual braking. This provides advance warning while using the electronic processor's determination logic to avoid false positives.
Solution Approach 2:
The system employs feedback by continuously monitoring sensor data and ADAS determinations to control brake light illumination. The electronic processor uses feedback from the determination of likely braking events to control when the brake light illuminates, ensuring accuracy while providing advance warning.
3Object-generated harmful factors
If brake lights illuminate later after braking begins, then false positives are minimized, but the platooning effect is exacerbated
Solution Approach 1:
The system applies preliminary action by illuminating the brake light before braking occurs, providing advance warning that allows following vehicles to react earlier. This reduces the platooning effect and improves traffic flow efficiency while maintaining low false positive rates through the electronic processor's determination logic.
Solution Approach 2:
The system uses preliminary anti-action by providing advance warning through early brake light illumination, which counteracts the potential harmful effect of the platooning effect before it can develop. This allows following vehicles to prepare for braking in advance, reducing the build-up of delays in traffic lines.
Data Source
AI summary
A system for providing advance warning of braking through early illumination of a brake light. The system includes a first electronic processor. The first electronic processor is configured to determine a braking event is likely to occur and, in response to determining that the braking event is likely to occur, generate a forward collision warning, a prefill request, or both and, prior to generating the forward collision warning, the prefill request, or both, generate a request to illuminate a brake light.