Vehicle Safety Margin Shaping for Cut-In Detection
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Solution Overview
Problem
Existing vehicle control systems face challenges in responding effectively to sudden cut-in situations, leading to potential accidents due to slow response times and inadequate deceleration to avoid collisions with vehicles that do not maintain proper inter-vehicle distance.
Innovation Solution
An apparatus and method that include an active safety driving device, a front detection sensor using radar to recognize and margin-shape a control target vehicle, and a vehicle control device to determine the risk level and apply margin shaping, generating virtual lines to enhance safety distance and control deceleration based on time-to-collision and driver intention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the vehicle uses standard radar detection without margin shaping, then the detection range is limited to the actual vehicle position, but the response time is insufficient for sudden cut-in situations
Solution Approach 1:
The system performs preliminary detection by creating a margin-shaped virtual vehicle that extends beyond the actual vehicle boundaries in the radar detection field. This preliminary expansion allows the system to detect cut-in vehicles earlier by monitoring the margin area, providing advance warning before the actual vehicle position is reached, thus reducing response time while maintaining detection accuracy through the virtual margin concept
2Reliability
If the vehicle applies aggressive braking to prevent collision with cut-in vehicles, then collision avoidance is improved, but excessive deceleration causes discomfort and potential safety issues
Solution Approach 1:
The system applies beforehand cushioning by using the margin-shaped virtual vehicle as a buffer zone. When a cut-in vehicle is detected within the margin area, the system initiates gradual deceleration rather than abrupt braking. This cushioning approach allows the vehicle to slow down progressively, maintaining collision avoidance reliability while ensuring driving comfort through controlled, non-excessive deceleration
3Reliability
If the vehicle expands the detection margin for dangerous vehicles, then the safety distance is increased, but the complexity of the control system increases
Solution Approach 1:
The system uses copying by creating a virtual margin-shaped vehicle that replicates the actual vehicle's position and characteristics. This virtual copy serves as a simplified representation that enables complex safety calculations and margin-based detection without requiring complex physical modifications to the vehicle or its control systems. The copying approach maintains reliability through accurate virtual modeling while managing complexity by using software-based virtual representations
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
Enhances the ability to detect and avoid dangerous obstacles by margin-shaping sensing data, allowing for safer and more controlled deceleration without excessive braking, thus preventing collisions and improving driving agility in sudden cut-in scenarios.
Implementation Method 1
a front detection sensor configured to recognize a front vehicle as a control target dangerous vehicle when the front vehicle attempts to change into a lane on which the vehicle travels, wherein the front detection sensor includes a radar
Data Source
AI summary
An apparatus for controlling driving of a vehicle includes an active safety driving device for changing a driving mode of the vehicle from a normal driving mode to an active safety driving mode, a front detection sensor for recognizing a front vehicle as a control target dangerous vehicle when the front vehicle attempts to change into a lane in which the vehicle travels, and a vehicle control device for determining whether to generate a margin shaping for the control target dangerous vehicle, and for controlling the active safety driving device based on the margin-shaped control target dangerous vehicle when the margin shaping is applied to the control target dangerous vehicle.