Adaptive AEB Sensitivity for Pedestrian Safety
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Solution Overview
Problem
Autonomous emergency braking (AEB) systems in vehicles can inconvenience users by frequently braking in situations where pedestrians are present, leading to disrupted normal driving operations.
Innovation Solution
A vehicle driver assistance apparatus that includes an object detection device to generate data on external objects, an interface unit, and a processor to determine the operation sensitivity of the AEB system based on driving situation information, such as road type, weather, and vehicle state, to adaptively control the braking sensitivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the AEB device operates with high sensitivity to detect pedestrians, then safety is improved, but normal traveling is disrupted and user convenience deteriorates
Solution Approach 1:
The AEB device dynamically adjusts its operation sensitivity based on the detected driving situation. When pedestrians are detected, the sensitivity is increased to enhance safety. When no pedestrians are present, the sensitivity is reduced to prevent unnecessary braking and maintain normal traveling. This dynamic adjustment resolves the contradiction by making the sensitivity adaptive rather than fixed.
Solution Approach 2:
The operation sensitivity parameter of the AEB device is changed based on driving situation information. The processor determines whether to increase or decrease the sensitivity threshold for triggering autonomous braking. By changing this parameter according to environmental conditions (presence of pedestrians, road type, weather), the system achieves both high safety when needed and normal operation when safe conditions exist.
2Reliability
If the AEB device frequently brakes to prevent accidents, then safety is improved, but normal traveling is disrupted
Solution Approach 1:
The braking behavior of the AEB device is made dynamic by adjusting operation sensitivity based on real-time driving situation assessment. The system selectively applies high sensitivity (frequent braking) only when pedestrians or hazards are detected, while maintaining low sensitivity (normal traveling) when the environment is safe. This prevents unnecessary braking disruptions while maintaining accident prevention capability.
Solution Approach 2:
The AEB device applies different operation characteristics to different driving situations. Instead of uniformly high sensitivity that disrupts all traveling, the system applies high sensitivity locally only when and where hazards are present (pedestrian zones, detected objects), while allowing normal traveling in safe areas. This localized application of safety measures resolves the contradiction between accident prevention and normal traveling.
Data Source
AI summary
A driver assistance apparatus for a vehicle including an interface unit; and a processor that receives driving situation information and data about an object outside the vehicle through the interface unit, and determines an operation sensitivity of an autonomous emergency braking (AEB) operation corresponding to the object based on the received driving situation information, and generates control signal of the AEB operation to control a braking operation of the vehicle based on the determined operation sensitivity.