Seamless Parking to Traffic Transition in Driver Assistance Systems
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Solution Overview
Problem
Existing vehicle assistance systems face challenges in seamlessly transitioning from parking maneuvers to traffic participation, leading to unpredictable end positions and potential safety hazards due to unnecessary vehicle stops, which can result in dangerous situations.
Innovation Solution
A driver assistance system that seamlessly transitions from a parking assistant to a slow-moving follow-up assistant, enabling autonomous vehicle control after parking, using an environment detection system and wireless communication for safe integration into traffic, and allowing the driver to take control at any time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the parking assistant terminates the maneuver as soon as a collision-free exit is possible, then the exit maneuver is completed quickly, but the vehicle may stop in an unpredictable final position causing safety hazards
Solution Approach 1:
The system pre-defines multiple target positions along the exit trajectory before the maneuver begins. The parking assistant plans the exit maneuver to reach one of these predetermined target positions, ensuring predictability while maintaining efficiency. This resolves the contradiction by establishing exit goals in advance rather than determining the final position reactively.
2Ease of operation
If the vehicle stops after backing out to allow driver takeover, then the driver can assume control, but this causes unnecessary vehicle stops leading to avoidable hazards in traffic
Solution Approach 1:
The system dynamically determines whether to stop based on real-time assessment of traffic conditions and maneuver context. Rather than always stopping or never stopping, the parking assistant evaluates the situation and decides the appropriate action, allowing driver takeover only when safe and appropriate. This dynamic approach resolves the contradiction between ease of operation and safety.
Solution Approach 2:
The system continuously monitors traffic conditions and vehicle state during the exit maneuver, using this feedback to determine the optimal termination point and whether driver takeover is needed. This feedback mechanism allows the system to maintain safety while minimizing unnecessary stops.
3Adaptability or versatility
If the same assistance system produces different final positions for varying parking space sizes, then the system adapts to different conditions, but the behavior becomes unpredictable
Solution Approach 1:
The system changes its operational parameters based on detected parking space characteristics. Different target positions, trajectory parameters, and maneuver profiles are selected according to the specific parking space dimensions and configuration. This parameter adaptation allows the system to handle varying conditions while maintaining predictable, rule-based behavior.
Data Source
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AI summary
The invention relates to a driver assistance system (12) for a vehicle (10) comprising a parking assistant (14) and a slow-speed following assistant (16), wherein the driver assistance system (12) is configured to perform a seamless transition from the parking assistant (14) to the slow-speed following assistant (16) after the vehicle (10) has exited a parking space (30). The invention further relates to a vehicle (10) equipped with such a driver assistance system (12). The invention also relates to a method for autonomously controlling a vehicle (10) to participate in a traffic situation from a parked vehicle (10), comprising the steps of activating a parking assistant (14), exiting the parking space (30) with the parking assistant (14), activating a slow-speed following assistant (16), and seamlessly transferring vehicle control from the parking assistant (14) to the slow-speed following assistant (16).