Parking Assist Apparatus Correcting Target Position for Vehicle Movement
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Solution Overview
Problem
Conventional parking assist systems experience a delay in displaying the parking target position, leading to a mismatch between the displayed and actual positions due to vehicle movement during the processing time, resulting in an inaccurate representation of the parking-possible region.
Innovation Solution
A parking assist apparatus that includes a detection portion for identifying a parking target position, a moving amount calculation portion to calculate the vehicle's movement before setting the target, a correction portion to adjust the target position based on this calculation, and a display portion to superimpose the corrected target on a surrounding image, ensuring accurate representation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the parking target position is displayed after detection and processing, then the system can complete necessary calculations and corrections, but the displayed position becomes mismatched with the actual position due to vehicle movement during processing time
Solution Approach 1:
The patent applies preliminary action by calculating the vehicle's movement amount from the time of image capture to the present time point before setting the parking target position. This allows the system to proactively compensate for vehicle movement during processing, ensuring the displayed parking target position accurately reflects the current actual position rather than becoming outdated due to delay.
2Reliability
If the system processes and displays parking target position continuously, then real-time accuracy is improved, but computational load and processing complexity increase
Solution Approach 1:
The patent implements feedback by continuously calculating the vehicle's movement amount based on the difference between the captured image time point and the present time point, then using this movement information to correct the parking target position before display. This closed-loop feedback mechanism maintains real-time accuracy without requiring completely redundant processing, as each correction builds upon previous detection data adjusted for movement.
Data Source
AI summary
A parking assist apparatus includes a detection portion detecting a parking target position from a captured image captured by an imager or from distance information measured by a distance measuring portion, a setting portion setting the detected parking target position as a target of the parking assist, a moving amount calculation portion calculating a moving amount of the vehicle, the moving amount being calculated before the parking target position is set as the target of the parking assist, a correction portion correcting the parking target position on the basis of the calculated moving amount, and a display portion displaying a surrounding image which represents an external environment around the vehicle and a parking region image which indicates the parking-possible region at the parking target position corrected by the correction portion in a manner that the surrounding image and the parking region image are superimposed on each other.