Vehicle Collision Avoidance Control Area Adjustment
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Solution Overview
Problem
Existing vehicle collision avoidance systems do not effectively account for surrounding road conditions, leading to inadequate adjustment of collision avoidance control areas and timing of warning signals and braking applications.
Innovation Solution
A vehicle system that captures and detects objects, determines collision avoidance control areas based on object position and speed, and adjusts these areas and corresponding warning signals and braking applications based on surrounding road conditions, such as guardrails, highways, crosswalks, and school zones.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If collision avoidance control area is determined based only on object position and speed, then the control system is simple, but it cannot effectively account for surrounding road conditions
Solution Approach 1:
The system pre-stores multiple collision avoidance control areas corresponding to different road conditions (highway, urban road, crosswalk, school zone) in advance. When a specific road condition is detected, the controller directly retrieves and applies the corresponding pre-determined control area, avoiding real-time complex calculations and enabling rapid adaptation to different environments.
Solution Approach 2:
The system changes the collision avoidance control area parameters based on detected road conditions. The controller adjusts at least one of the time to send collision warning signal or the amount of braking applied by modifying the collision avoidance control area selection, thereby adapting the system behavior to different road environments without changing the underlying hardware or basic control logic.
2Adaptability or versatility
If collision avoidance control area is fixed, then the control logic is simple, but it cannot be adjusted for different road conditions such as highways vs. crosswalks
Solution Approach 1:
The collision avoidance control area is made dynamic rather than fixed. The controller dynamically selects and adjusts the collision avoidance control area based on real-time detection of road conditions (highway, urban road, crosswalk, school zone), enabling the system to adapt its behavior to different environments while maintaining a relatively simple control structure through predefined adjustment rules.
3Reliability
If warning signal is sent at fixed time, then the timing control is simple, but it cannot be optimized for different collision risks
Solution Approach 1:
The timing parameter for collision warning signal is adjusted based on the selected collision avoidance control area. When the controller determines a larger control area is needed (e.g., crosswalk, school zone), it sends the warning signal earlier; when a smaller control area suffices (e.g., highway with guardrail), it sends the warning signal later. This parameter adjustment optimizes warning timing for different collision risks without requiring complex real-time calculation.
4Reliability
If braking amount is fixed, then the braking control is simple, but it cannot be optimized for different surrounding conditions
Solution Approach 1:
The braking amount parameter is adjusted based on the selected collision avoidance control area and detected road conditions. The controller applies different braking forces appropriate to each situation: stronger braking for high-risk areas like crosswalks and school zones, and milder braking for lower-risk areas like highways with guardrails. This optimized braking control enhances collision avoidance reliability while maintaining relatively simple control logic through predefined adjustment rules.
Data Source
AI summary
A vehicle may a capturer configured to capture an object around the vehicle to detect the object, a detector configured to obtain at least one of position information and speed information related to the object, and a controller configured to determine a collision avoidance control area for the object based on the at least one of position information and speed information related to the object, change the determined collision avoidance control area based on information related to a surrounding condition of a road on which the vehicle is being driven, and change at least one of time to send a signal to warn of a collision with the object and an amount of braking of the vehicle based on the changed collision avoidance control area.