Parking Assistance Image Display Control During Vehicle Turning
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Solution Overview
Problem
Existing parking assistance systems fail to accurately detect empty parking spaces when a vehicle is turning, potentially providing wrong information to the occupant.
Innovation Solution
A parking assistance method that displays assistance images only when the vehicle is not turning, preventing erroneous detection and information provision by determining the vehicle's turning state using steering-wheel angle sensors and prohibiting image display during turns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the assistance image is displayed continuously to provide parking space information to the occupant, then the information availability is improved, but the measurement precision deteriorates when the vehicle is turning
Solution Approach 1:
The system dynamically adjusts the display state of the assistance image based on the vehicle's turning state. When the vehicle is turning (steering wheel angle exceeds threshold), the assistance image display is prohibited. When the vehicle is traveling straight, the assistance image is displayed normally. This dynamic control resolves the contradiction by adapting the information display to the vehicle's operational state, ensuring accuracy is maintained while information is provided only when reliable.
2Ease of operation
If the assistance image is displayed during turning to maintain continuous information provision, then the ease of operation is improved, but the reliability deteriorates due to erroneous detection
Solution Approach 1:
The system takes preliminary action by detecting the vehicle's turning state in advance and prohibiting the assistance image display before erroneous information can be provided. The turning detection unit monitors the steering wheel angle and preemptively prevents incorrect parking space information from being displayed, thus maintaining reliability while still providing continuous accurate information during non-turning states.
3Measurement precision
If the assistance image display is prohibited during turning to prevent wrong information, then the measurement precision is improved, but the loss of information increases
Solution Approach 1:
The system dynamically controls information display based on vehicle state, prohibiting assistance image display only during turning when detection accuracy would be compromised. During straight-line travel, full information is provided. This dynamic approach minimizes information loss while ensuring precision is maintained during critical detection phases.
Data Source
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AI summary
A parking assistance device includes: a surrounding-image generation circuit (101) that generates a surrounding image that is a view of surroundings of a mobile object from above; an image display circuit (102) that displays an assistance image at a position of an empty parking space in the surrounding image, the first assistance image indicating the empty parking space; and a turning determination circuit (106) that determines whether the mobile object is turning. In a case where it is determined by the turning determination circuit (106) that the mobile object is turning, the image display circuit (102) prohibits the assistance image from being displayed.