Parking Assistance System Sensor-Aware Guidance
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Solution Overview
Problem
Existing parking assistance systems fail to reliably measure and find suitable parking spaces due to drivers' lack of knowledge about the properties and detection ranges of vehicle-mounted sensors, leading to suboptimal parking results and potential collisions.
Innovation Solution
The parking assistance system autonomously guides the vehicle during the search for a parking space, taking into account the properties and detection ranges of sensors like cameras, ultrasonic, and radar sensors to ensure optimal detection and measurement of potential parking spaces, maintaining safe distances and avoiding obstacles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the driver performs the parking space search manually, then the driver can control the vehicle's position, but the parking spaces cannot be reliably measured because the driver lacks knowledge of sensor properties and detection ranges
Solution Approach 1:
The parking assistance system performs the parking space search autonomously by controlling the vehicle's longitudinal and lateral guidance, eliminating the need for driver intervention in maneuvering. The system uses the detection device's properties and detection range to automatically position the vehicle for optimal parking space measurement, thereby improving measurement reliability without requiring driver knowledge of sensor characteristics.
Solution Approach 2:
The system changes the operational parameters by transitioning from manual driver control to automated vehicle control during the parking space search. The parking assistance system adjusts the vehicle's position and movement based on detection device capabilities, transforming the search process into an automated measurement task that ensures reliable parking space detection.
2Reliability
If the vehicle is positioned far from parked cars during search, then collision risk is reduced, but detection range coverage is insufficient leading to missed parking spaces
Solution Approach 1:
The parking assistance system continuously receives feedback from the detection device about the vehicle's surroundings and adjusts the vehicle's position accordingly. The system monitors detection results in real-time and modifies the search trajectory to optimize both safety margins and detection coverage, ensuring reliable parking space identification while maintaining appropriate distances from obstacles.
Solution Approach 2:
The system dynamically adjusts the vehicle's position and movement during the parking space search based on real-time detection data. Rather than maintaining a fixed distance, the vehicle's longitudinal and lateral guidance is continuously adapted to optimize the balance between collision avoidance and detection range utilization, improving both safety and detection reliability.
3Measurement precision
If the detection device is used without considering its properties, then the system is simpler to operate, but parking spaces are not reliably measured leading to poor parking results
Solution Approach 1:
The parking assistance system automatically accounts for detection device properties by integrating sensor characteristics into the vehicle control algorithm. The system self-adjusts the search strategy based on detection range and sensor capabilities without requiring external configuration or complex manual intervention, thereby achieving high measurement accuracy while maintaining operational simplicity.
Data Source
Figure 1~2
AI summary
The invention relates to a method for operating a parking assistance system (2) of a motor vehicle (1), comprising the steps: performing a parking-space searching drive by means of the parking assistance system (2) by carrying out longitudinal guidance and transverse guidance of the motor vehicle (1) by means of the parking assistance system (2) while taking into account at least one property of a detection device (3) of the motor vehicle (1), which detection device is designed to detect the vehicle environment; detecting the vehicle environment by means of the detection device (3) during the parking-space searching drive; measuring parking spaces by means of the parking assistance system (2) on the basis of the detected vehicle environment; determining, on the basis of the measured parking spaces, whether a parking space suitable for the motor vehicle (1) has been detected. The invention also relates to a parking assistance system (2) for a motor vehicle (1), which parking assistance system is designed to perform a parking-space searching drive.