Parking Assist Route Memory for Variable Start Positions
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Solution Overview
Problem
Existing parking assistance systems cannot automatically park a vehicle at a registered parking space if the vehicle stops at a different position from where the parking space information was initially acquired, limiting their functionality.
Innovation Solution
A parking assistance apparatus with an electronic control unit that detects feature points from images and memorizes them as start and middle points to create route information, allowing the vehicle to be automatically parked even when the vehicle stops at a different position by setting a target or reference moving route based on this information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the automatic parking control executes only when the vehicle stops at the same position as the position where the parking space information starts to be acquired, then the system can ensure accurate parking execution, but the system cannot accommodate drivers who stop at different positions
Solution Approach 1:
The system performs preliminary actions by detecting and memorizing feature points (start feature point, middle feature point, end feature point) and route information during the driver's manual parking process. This preliminary data collection enables the system to later execute automatic parking from various starting positions by referencing the stored feature points and calculated reference routes, rather than requiring the vehicle to stop at an exact predetermined position.
Solution Approach 2:
The system dynamically adjusts the reference moving route based on the driver's actual vehicle position and the detected feature points. Instead of using a fixed, predetermined route, the system calculates and updates the reference route in real-time to accommodate different starting positions while maintaining reliable parking execution by guiding the vehicle along the dynamically determined path to the target parking space.
2Manufacturing precision
If the system memorizes detailed route information including steering amounts and moving distances, then the system can accurately reproduce the parking path, but the calculation load on the control unit increases
Solution Approach 1:
The system segments the parking route into distinct sections defined by feature points (start feature point, middle feature point, end feature point). Instead of processing the entire route as one continuous path requiring complex calculations, the system divides it into manageable segments between feature points, allowing for more efficient processing and reduced calculation load while maintaining accurate path reproduction.
Solution Approach 2:
The system creates a simplified copy of the parking route by storing key feature points and essential route information rather than memorizing every detail of the driving path. This copied representation includes the necessary information to reproduce the parking path accurately (feature point positions, relative relationships) without requiring the control unit to process and store excessive data, thereby reducing calculation load while preserving path accuracy.
Data Source
AI summary
A parking assistance apparatus sets a reference moving route, based on route information when a feature point corresponding to a registered start feature point is detected, automatically parking an own vehicle at a parking space is not requested, and a driver of the own vehicle starts manually parking the own vehicle at the parking space. After the driver starts manually parking the own vehicle at the parking space, the parking assistance apparatus executes an automatic parking control when automatically parking the own vehicle at the parking space is requested, and a positional relationship between the own vehicle and the reference moving route satisfies a predetermined condition.