Parking Assist Steering Marker for Non-Perpendicular Alignment
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Solution Overview
Problem
Conventional parking assisting apparatuses are ineffective in helping vehicle drivers park unless the vehicle is perpendicular to the parking space at the start of parking, limiting their ability to assist in non-perpendicular scenarios.
Innovation Solution
A parking assisting apparatus that includes image pickup, display, and image processing means to superimpose a parking guide on the vehicle's rear image, featuring a steering start marker formed by tangential lines indicating the start of steering and a predetermined track, allowing drivers to adjust their steering based on the vehicle's maximum steering angle and current orientation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the vehicle is required to be perpendicular to the parking space at the start of parking, then the parking assisting apparatus can provide accurate guidance, but the ease of operation deteriorates because the driver cannot start parking from arbitrary positions
Solution Approach 1:
The system pre-calculates and displays a predetermined track based on maximum steering angle before the driver starts parking. This preliminary guidance allows the driver to approach the parking space at any angle and still receive accurate steering guidance, eliminating the need to start in a precise perpendicular position while maintaining final parking accuracy
Solution Approach 2:
The system dynamically adjusts the guidance parameters by calculating tracks based on the actual vehicle position and orientation relative to the parking space. By using maximum steering angle as a fixed parameter and computing the corresponding track, the system adapts to various starting positions while maintaining guidance accuracy
2Ease of operation
If the parking assisting guide provides detailed steering guidance for various positions, then the ease of operation improves, but the device complexity increases due to additional calculation and display elements
Solution Approach 1:
The guidance system is segmented into distinct visual elements: the predetermined track showing the vehicle path, tangential lines indicating steering start points, and the parking space boundary. This segmentation allows the complex guidance information to be presented in simple, easily distinguishable visual components that reduce cognitive load on the driver
Solution Approach 2:
The system extracts only the essential guidance information needed for parking - the predetermined track and tangential lines - and displays them separately from other vehicle systems. By focusing only on the critical steering guidance elements rather than displaying all possible vehicle parameters, the system maintains ease of operation without excessive complexity
Data Source
AI summary
It is an object of the present invention to provide a parking assisting apparatus for assisting a vehicle driver in parking a vehicle more easily than the conventional apparatuses. The parking assisting apparatus comprises an image pickup unit for picking up the image of the area behind a vehicle (80), display means for displaying the image picked up by the image pickup means; and image processing means for having the display means display a parking assisting guide for assisting a vehicle driver in parking the vehicle (80) superposed on the image picked up by the image pickup means; and in which the parking assisting guide includes a steering start marker (31) for notifying the vehicle driver of start of steering of the vehicle (80); the steering start marker (31) is constituted by an intersection of tangential lines (33, 34) respectively tangent to a predetermined track (32) at two different points; the predetermined track (32) is a track expected to be drawn by a predetermined fixed point (35) fixed with respect to the vehicle (80) while the vehicle (80) is driven backwardly at a maximum steering angle, and the fixed point (35) is located on a side opposite to a center (36) of a rotation of the vehicle (80) around which the vehicle (80) is expected to rotate while the vehicle (80) is driven backwardly at a maximum steering angle, with respect to the vehicle (80).