Forward Collision Control for Side-Shown Stopped Vehicles
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional forward collision prevention systems fail to provide adequate warnings or control measures when encountering a stopped vehicle with its side shown, particularly in scenarios like accidents, breakdowns, or low-speed crossings, leading to potential collisions and sensitive or erroneous vehicle control.
Innovation Solution
A vehicle control system that includes a recognition/determination unit to identify stopped vehicles on the side, a driving situation determination unit to assess the host vehicle's context, and a control strategy unit to implement warning and steering or braking interventions based on the risk assessment, tailored to urban vs. highway driving, manual vs. autonomous modes, and normal vs. emergency states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the conventional forward collision prevention system is used, then the system can perform alerts and automatic brakes for vehicles ahead, but it fails to provide adequate warnings or control measures for stopped vehicles with side shown
Solution Approach 1:
The system dynamically adjusts its detection and response strategies based on the identified scenario type (moving vehicle, stopped vehicle with side shown, stopped vehicle with front/rear shown). Different detection thresholds, warning levels, and control interventions are applied according to the dynamic classification of the target vehicle state and orientation.
Solution Approach 2:
The system changes key parameters including detection sensitivity thresholds, warning activation criteria, and control intervention levels based on the scenario classification. For stopped vehicles with side shown, the system adjusts the angular range detection parameters and modifies the warning/control activation conditions compared to conventional moving vehicle detection.
2Reliability
If the system provides active intervention for stopped vehicles with side shown, then collision prevention is improved, but sensitive or erroneous control may occur
Solution Approach 1:
The system segments the detection space into multiple angular zones relative to the host vehicle (front, side, rear directions). By dividing the detection field into distinct directional sectors, the system can apply scenario-specific detection criteria and control strategies for each zone, reducing erroneous identification while maintaining comprehensive coverage.
Solution Approach 2:
The system continuously monitors detection results and adjusts its classification and response based on feedback from multiple sensors (cameras, radar). The control strategy unit receives feedback on target vehicle position, orientation, and motion state to dynamically adjust warning and control interventions, preventing both missed detections and false positives.
3Reliability
If the system controls warning, steering, and braking devices for stopped vehicles, then collision prevention is enhanced, but the control strategy complexity increases
Solution Approach 1:
The control strategy unit dynamically selects and adjusts the mix of warning, steering, and braking interventions based on the identified scenario and driving conditions. For stopped vehicles with side shown, the system may prioritize steering avoidance maneuvers over braking, whereas for head-on collision risks, maximum braking may be activated. This dynamic control adaptation manages complexity by applying context-appropriate control combinations.
Solution Approach 2:
The system implements a staged control approach where warning signals are activated first, followed by gradual steering or braking interventions if the warning does not resolve the risk. For stopped vehicles with side shown, preliminary gentle steering adjustments are made before more forceful corrections, allowing the driver time to respond while progressively managing the collision risk.
Data Source
AI summary
In a method of collision prevention strategy for a vehicle and a vehicle control system of the same, the vehicle control system includes a recognition/determination unit which recognizes whether a front vehicle is a target vehicle which is stopped on the side either slowing down or stopped, and determines a state of road occupancy of the target vehicle: a driving situation determination unit which determines a driving situation of a host vehicle; a control strategy unit which determines a strategy before preventing collision according to the result of the recognition/determination unit and the driving situation determination unit; and an actuator operation unit which controls at least a warning mean, a steering device, and a braking device according to the determination of the control strategy unit.