Parking Assistance Device Corner Position Estimation
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Solution Overview
Problem
Conventional parking assistance devices face challenges in recognizing parking spaces early enough for smooth forward parking, leading to delayed steering and multiple attempts to align the vehicle.
Innovation Solution
A parking assistance device equipped with a camera and ranging sensors that estimate corner positions of the parking space before the vehicle passes by, allowing for early recognition and smooth forward parking by calculating the first corner position using distance information and the second corner position using captured images.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the vehicle directly enters the parking space from a lateral passage in front of the parking space, then the parking route is shortened, but the recognition of the parking space must be timely or the start of steering is delayed requiring repeated steering adjustments
Solution Approach 1:
The system performs preliminary recognition of the parking space corner positions before the vehicle reaches the optimal parking entry point. By using the camera to capture images and calculate corner positions in advance, the system prepares the parking route information beforehand, enabling the driver to start steering at the right moment without delay or repeated adjustments.
2Loss of time
If the vehicle enters the parking space from the rear, then steering can be started later, but the parking route becomes longer
Solution Approach 1:
The system enables preliminary recognition of parking spaces when approaching from the rear by calculating corner positions in advance using camera images. This allows the driver to prepare steering actions earlier while still taking the more efficient direct route, combining the benefits of both rear-entry timing and direct routing.
Data Source
AI summary
A parking assistance device is applied to a vehicle equipped with a camera for capturing an image of an area in front of the vehicle and is configured to assist forward parking of the vehicle in a parking space. The parking assistance device includes: a position estimation unit which, in a situation where the vehicle is advancing toward the parking space in a lateral passage of the parking space, estimates, based on an image captured by the camera, at least one of a first corner position, which is a near-side corner position at a vehicle entrance part of the parking space, and a second corner position, which is a far-side corner position at the vehicle entrance part, before the vehicle passes by the parking space; and a space recognition unit which recognizes the parking space for forward parking based on the at least one estimated corner position.