Follower Vehicle Alerting Before Automatic Emergency Braking
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Solution Overview
Problem
Existing intervening driver assistant systems, such as Automatic Emergency Brake (AEB), may surprise drivers in follower vehicles with sudden braking, leading to increased accident risks due to lack of preview information or alerts for impending collisions when following vehicles are not equipped with similar systems.
Innovation Solution
A method and system that alert the driver of a follower vehicle by activating the brake lights, warning lights, and/or horn of the leading vehicle simultaneously with the detection of an obstacle and impending brake, providing a visual and auditory escalation as the brake status changes from warning to full braking, and potentially using wireless communication for additional alerts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the AEB system applies sudden braking to avoid collision, then the safety of the first vehicle is improved, but the follower vehicle driver is surprised and cannot react in time, increasing accident risk
Solution Approach 1:
The system activates brake lights and warning lights before the actual braking action occurs. When the AEB system detects an obstacle and determines that automatic braking will be applied, it first illuminates the brake lights and/or warning lights to alert the follower vehicle driver in advance, giving them time to react and reduce the harmful surprise effect
Solution Approach 2:
The brake lights and warning lights serve as intermediary signals between the AEB system's detection and the actual braking action. These lights act as a mediator that communicates the impending braking to the follower vehicle driver, allowing them to prepare and react appropriately without being surprised by the sudden brake
2Loss of time
If the AEB system provides immediate warning to the driver, then the response time is reduced, but the follower vehicle driver receives no advance notice of the braking event
Solution Approach 1:
The warning system is segmented into two separate communication channels: one for the first vehicle driver (internal dashboard warnings) and one for the follower vehicle driver (external brake lights and warning lights). This segmentation allows both drivers to receive appropriate information simultaneously, with the first driver getting immediate notification and the follower driver receiving advance notice through the vehicle's external lighting signals
Data Source
Figure 1A~1B
Figure 2
Figure 3
AI summary
Method (400) and intervening driver assistant system (500), in a first vehicle (101), for alerting a driver in a follower vehicle (102) of an obstacle (120) in front of the first vehicle (101), detected by the intervening driver assistant system (500). The method (400) comprises detecting (401) the obstacle (120) in front of the first vehicle (101) by the intervening driver assistant system (500); and alerting (402) the driver in the follower vehicle (102), of the detected (401) obstacle (120) in front of the first vehicle (101), before the brakes of the first vehicle (101) are activated by the intervening driver assistant system (500).