Vehicle Control System Countersteering for Secondary Collision Avoidance
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Solution Overview
Problem
Existing vehicle control systems are inadequate in preventing secondary collisions when a vehicle is pushed off course by another vehicle cutting into its lane, particularly in situations where oncoming traffic emerges suddenly, leading to potential collisions with roadside hazards.
Innovation Solution
A method and device that read in hazard area and approach information to ascertain collision parameters, generating a control signal for countersteering to prevent the vehicle from colliding with hazards by determining a counter momentum value and timing the steering intervention to avoid excessive or insufficient countersteering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a fixed distance from roadway markings is maintained to keep the vehicle centered, then lane keeping stability is improved, but the ability to respond to sudden hazards is worsened
Solution Approach 1:
The system dynamically adjusts the steering intervention based on real-time hazard detection and collision parameter calculation. When a hazard is detected and collision risk is assessed, the system transitions from passive lane centering to active countersteering, optimizing the balance between stability and hazard response.
Solution Approach 2:
The system continuously monitors surroundings sensors, calculates collision parameters, and adjusts steering control accordingly. The feedback loop includes reading hazard area information, calculating collision parameters, determining counter momentum, and generating control signals to steer away from hazards while maintaining lane centering when safe.
2Reliability
If countersteering is applied to prevent secondary collisions, then safety is improved, but the risk of excessive steering intervention is worsened
Solution Approach 1:
The system calculates collision parameters and determines the required counter momentum in advance of the actual collision. By reading approach information and hazard area data beforehand, the system prepares the optimal steering intervention to counteract the impending collision force while avoiding excessive steering.
Solution Approach 2:
The system dynamically calculates the counter momentum parameter based on collision parameters, vehicle mass, and hazard position. The control signal magnitude and timing are continuously adjusted according to the calculated parameters, ensuring the steering intervention is sufficient to prevent secondary collision but not excessive to cause loss of control.
3Stability of the object's composition
If the vehicle is pushed off course by another vehicle, then lane position stability is worsened, but the risk of secondary collision with hazards increases
Solution Approach 1:
The system reads in approach information and hazard area information in advance, calculates collision parameters before the collision occurs, and determines the necessary countersteering action. This preliminary preparation allows the system to respond immediately when pushed off course, steering the vehicle away from hazards before secondary collision can occur.
Data Source
AI summary
A method for controlling a vehicle. A piece of hazard area information, which represents at least one hazard area in the surroundings of the vehicle, and a piece of approach information, which represents an approach to the vehicle of at least one further vehicle driving next to the vehicle, are read in. Using the approach information, at least one collision parameter of a collision between the vehicle and the further vehicle is ascertained. Finally, a control signal is generated, using the collision parameter and the hazard area information, to steer the vehicle in a direction facing away from the hazard area.