Vehicle Safety Control for Collision-Avoiding Reverse Maneuvers
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Solution Overview
Problem
Existing vehicle safety systems are inadequate in detecting and minimizing collision risks, particularly in low-speed maneuvering scenarios such as parking and navigating through complex intersections, where the risk of collisions with other vehicles or pedestrians is high due to limited visibility and complex traffic conditions.
Innovation Solution
A vehicle safety apparatus equipped with a surroundings sensor system and actuating units for automated longitudinal and lateral guidance, which detects collision probabilities and adjusts the vehicle's path to minimize the risk of collisions by braking and changing direction, using a combination of radar, video, and ultrasonic sensors to monitor the environment and plan evasive maneuvers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If automated maneuvering is used in low-speed scenarios, then productivity is improved, but reliability deteriorates due to high collision risk
Solution Approach 1:
The system performs preliminary detection of collision risk before the maneuvering operation is completed. The surroundings sensor system continuously monitors the environment during automated maneuvering, and when a collision risk is detected, the system aborts the maneuvering operation and maneuvers the vehicle back along the traveled path to a safe position before the collision can occur.
2Reliability
If sensor systems are added to detect collision risks, then reliability is improved, but device complexity increases
Solution Approach 1:
The surroundings sensor system is designed to serve multiple functions: it detects collision risks during automated maneuvering, monitors the environment for obstacle detection, and provides data for both safety operations and normal maneuvering control. This multi-functionality reduces the need for separate dedicated sensors solely for collision avoidance.
3Reliability
If the vehicle maneuvers back along the path, then collision risk is minimized, but loss of time increases
Solution Approach 1:
When a collision risk is detected during automated maneuvering, the system rapidly aborts the current maneuvering operation and quickly maneuvers the vehicle back along the traveled path to a safe position. The system prioritizes rapid risk elimination over completing the original maneuvering task, accepting time loss as necessary for safety.
Data Source
AI summary
A safety apparatus for a vehicle and a corresponding method. The vehicle includes a device for automated longitudinal and lateral guidance of the vehicle, in particular for automatic maneuvering of the vehicle, wherein the vehicle has at least one surroundings sensor system, and actuating units for actuating the vehicle steering system, the vehicle drive devices, and/or the vehicle deceleration devices. When the device for automated longitudinal and lateral guidance maneuvers the vehicle into a traffic space being traveled in, and the surroundings sensor system detects a moving object that has a probability of collision with the host vehicle, the host vehicle is braked to a standstill, the direction of travel is changed and the vehicle is maneuvered back along a path until the probability of collision is minimized.