Vehicle Route Control at Crossroads
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Solution Overview
Problem
Existing vehicle control systems, such as cross traffic alert (CTA) and cross collision avoidance (CCA), struggle to effectively manage collision risks when surrounding vehicles deviate from their turning trajectories or turn simultaneously with the vehicle at crossroads, leading to potential collisions.
Innovation Solution
An apparatus and method that utilize sensors to acquire information on surrounding vehicles and a controller to generate a basic route for the vehicle, which can modify the route or adjust speed based on the position, speed, and direction of other vehicles, performing bias, acceleration, or deceleration control operations to prevent collisions by generating a modified route away from invading vehicles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the vehicle follows a basic route on the crossroad, then the driving operation is simple, but the collision risk increases when another vehicle deviates from its turning trajectory
Solution Approach 1:
The system dynamically adjusts the driving route from a static basic route to a modified route based on real-time detection of other vehicles' positions and trajectories. The controller continuously monitors surrounding vehicles and generates modified routes that adapt to changing conditions, transforming the rigid basic route into a flexible, dynamically adjusted path that avoids collision risks while maintaining simple operation through automated adjustments.
2Reliability
If the vehicle performs real-time route adjustment to avoid other vehicles, then the collision risk is reduced, but the control system complexity increases
Solution Approach 1:
The system performs preliminary actions by pre-generating multiple candidate routes and pre-identifying potential collision risks before actual conflicts occur. The controller anticipates possible trajectory deviations of other vehicles and prepares modified routes in advance, allowing for smooth transitions without requiring complex real-time calculations during critical moments, thereby reducing the instantaneous control complexity while maintaining high reliability.
3Stability of the object's composition
If the vehicle maintains a center-following basic route, then the driving path is predictable, but the system cannot cope with vehicles that deviate from turning trajectories
Solution Approach 1:
The system implements feedback by continuously monitoring the positions and trajectories of surrounding vehicles and comparing them against the basic route. When deviations or potential collision risks are detected, the controller receives feedback signals and automatically generates modified routes that adapt to the new conditions. This closed-loop feedback mechanism maintains the stability of the basic center-following approach while adding adaptability to respond to unpredictable vehicle behaviors.
Data Source
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AI summary
An apparatus for controlling driving of a vehicle includes a sensor to sense a crossroad and to acquire information on driving of another vehicle, and a controller to generate a basic route for driving on the crossroad, to control the driving on the crossroad based on the basic route, and to generate a modified route or control a driving speed based on the information on the driving of the another vehicle, when the another vehicle invades a specific area of the basic route or is precited to invade the specific area.