Vehicle Steering Avoidance Control Using Predictive Overlap
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Solution Overview
Problem
Current collision avoidance systems for vehicles lack the capability to safely execute steering avoidance based on predicted vehicle paths, as they do not adequately calculate current and predictive overlap information, which is crucial for determining the necessity and timing of steering maneuvers to prevent collisions.
Innovation Solution
A vehicle control apparatus and method that utilize image sensors, radar, LiDAR, or ultrasonic sensors to detect vehicle information, including longitudinal and lateral velocities, and distances, to calculate Time To Collision (TTC) and determine if steering avoidance is executable by assessing current and predictive overlap, allowing for safe steering maneuvers based on calculated steering avoidance information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the system performs steering avoidance based on predicted vehicle paths, then collision avoidance capability is improved, but the system complexity increases due to the need for calculating current and predictive overlap information
Solution Approach 1:
The system calculates predictive overlap information in advance by determining the predicted positions of both vehicles at the TTC (Time to Collision) based on current velocities and trajectories. This preliminary calculation allows the system to proactively assess potential collision risks and execute steering avoidance maneuvers before actual collision occurs, improving reliability while managing complexity through structured predictive modeling
2Measurement precision
If the system calculates accurate overlap information to determine steering avoidance timing, then the precision of collision prediction is improved, but the calculation time and processing load increase
Solution Approach 1:
The system uses readily available sensor data from the vehicle's existing detection systems (cameras, radar, LIDAR) to calculate overlap information. By leveraging already-acquired vehicle position, velocity, and trajectory data, the system avoids additional measurement steps and reduces calculation time while maintaining precision through efficient use of existing information
3Reliability
If the system determines steering avoidance executability based on both current and predictive overlap, then the safety of steering maneuver is improved, but the control logic complexity increases
Solution Approach 1:
The system divides the collision assessment into distinct segments: current overlap calculation, predictive overlap calculation, and executability determination. Each segment handles a specific aspect of the assessment independently, making the overall control logic more manageable and easier to implement while ensuring comprehensive safety evaluation through structured modular processing
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables safer and more effective steering avoidance by determining the necessity and timing of steering maneuvers based on accurate overlap calculations, reducing the risk of collisions and ensuring vehicle safety.
Implementation Method 1
an image sensor configured to capture image data
Implementation Method 2
at least one of a radar sensor, a light detection and ranging (LiDAR) sensor, and an ultrasonic sensor
Implementation Method 3
at least one of a radar sensor, a light detection and ranging (LiDAR) sensor, and an ultrasonic sensor
Implementation Method 4
at least one of a radar sensor, a light detection and ranging (LiDAR) sensor, and an ultrasonic sensor
Data Source
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AI summary
The present disclosure provides a collision avoidance apparatus (100) including: a first detector (110) configured to detect another vehicle information including a longitudinal velocity and a lateral velocity of another vehicle, and distance information including a longitudinal distance and a lateral distance from another vehicle; a second detector (120) configured to detect subject vehicle information including a velocity and a yaw rate of the subject vehicle; a calculator (130) configured to determine whether steering avoidance is executable, on the basis of the another vehicle information, the subject vehicle information, and the distance information, and when steering avoidance is executable, calculate steering avoidance information on steering avoidance of the subject vehicle; and a control unit (140) configured to control the subject vehicle to travel according to the steering avoidance information. Therefore, it is possible to prevent execution of steering avoidance in a case where steering avoidance is not needed or is inexecutable, and safer steering avoidance can be performed.