Vehicle Driving Control for Steering-Deceleration Collision Avoidance
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Solution Overview
Problem
Existing vehicle collision avoidance systems fail to adequately reduce the risk of collisions with objects, such as pedestrians, entering or about to enter the vehicle's travel path.
Innovation Solution
A driving control device that implements separation steering control and deceleration control based on predefined regions and object trajectory estimation to maintain distance and adjust control modes to minimize collision risk.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separation steering control is executed to maintain distance from an object in the steering operation region, then the possibility of collision is reduced, but the control complexity increases when the object is entering or about to enter the travel path
Solution Approach 1:
The control system dynamically switches between separation steering control and deceleration control based on the object's movement state. When the object is entering or about to enter the travel path, the system transitions from steering-based avoidance to deceleration-based avoidance, adapting the control strategy to the changing situation to maintain reliability without excessive complexity
Solution Approach 2:
The system changes the control parameter from steering angle to deceleration rate when the object's trajectory indicates potential travel path entry. This parameter switch allows the system to handle dynamic situations effectively while keeping the control logic manageable through clear conditional thresholds
2Reliability
If deceleration control is executed when object enters travel path during separation steering control, then collision risk is reduced, but the response time requirement increases
Solution Approach 1:
The system detects when an object is entering or about to enter the travel path during separation steering control and proactively switches to deceleration control before a collision becomes imminent. This preliminary action allows sufficient response time by anticipating the need for deceleration based on the object's current trajectory rather than waiting for immediate danger
Solution Approach 2:
The control system continuously monitors the object's position and trajectory relative to the travel path, providing real-time feedback that triggers the switch from separation steering to deceleration control. This feedback mechanism ensures timely response by constantly evaluating whether the object is entering the travel path and adjusting control accordingly
Data Source
AI summary
A driving control device that controls driving of a vehicle includes a driving control unit configured to, when a specific object is located in a steering operation region set in front of the vehicle, execute separation steering control of performing steering to maintain a distance between the vehicle and the object, and when the specific object is located in a deceleration operation region set in front of the vehicle, execute deceleration control of decelerating the vehicle. In a case where an object is entering or is about to enter a travel path of the vehicle during the execution of the separation steering control, the driving control unit changes an execution mode of the separation steering control or the deceleration control to cause a collision risk with the object to be reduced, compared to any other case.