Surround-View Parking Guidelines for Four-Wheel Steering Vehicles
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Solution Overview
Problem
Conventional surround view monitoring systems for four-wheel steering vehicles do not provide guidelines corresponding to the diverse steering and driving behaviors of these vehicles, limiting their ability to assist in parking and stopping in narrow spaces.
Innovation Solution
A method and apparatus that generate a surround view and guidelines based on video signals from multiple cameras, classifying driving modes by steering angles, and display these guidelines on a display unit to assist in parking and stopping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional surround view monitoring system is used for four-wheel steering vehicles, then the system structure remains simple, but the system cannot provide guidelines corresponding to diverse steering and driving behaviors
Solution Approach 1:
The system dynamically adjusts the guideline display based on the detected driving mode (vertical driving, in-situ rotation, diagonal driving, reverse phase driving). The control unit receives steering angle information from the steering angle sensor and camera information from multiple cameras, then selectively displays appropriate guidelines (first guideline extending from front wheel, second guideline extending from rear wheel, third guideline for diagonal driving, fourth guideline for reverse phase driving) according to the current driving mode, making the system adaptable to diverse steering behaviors
Solution Approach 2:
The guideline display is segmented into multiple independent guideline types (first guideline, second guideline, third guideline, fourth guideline), each corresponding to a specific driving mode. The control unit selectively displays the appropriate guideline segment based on the detected driving mode, allowing the system to provide specialized guidance for each steering behavior without requiring a complete redesign of the guideline system
2Measurement precision
If the system displays multiple types of guidelines for different driving modes, then guideline accuracy for specific maneuvers improves, but the complexity of guideline generation and control increases
Solution Approach 1:
The system pre-defines multiple guideline types (first guideline, second guideline, third guideline, fourth guideline) corresponding to different driving modes before operation. The control unit simply selects and displays the pre-defined guideline type that matches the current driving mode detected by the steering angle sensor and camera system, avoiding the need for complex real-time guideline calculation while maintaining high accuracy for each specific maneuver
Data Source
AI summary
A method and apparatus for providing guidelines for parking and stopping of a four-wheel steering vehicle. The method includes: generating a surround view based on a video signal acquired from a plurality of cameras that capture the front, rear, left side, and right side of the vehicle; generating the guidelines based on a driving mode; and displaying the surround view and the guidelines on a display unit. The driving mode is classified according to a steering angle of each wheel of the vehicle, and the guidelines are displayed to extend from an image of the vehicle.