Automatic Vehicle Reversing Along Forward Track
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Solution Overview
Problem
Drivers face challenges in efficiently reversing vehicles due to limited forward visibility, leading to misjudgments and reduced driving efficiency, especially in complex scenarios like uneven roads and narrow passages.
Innovation Solution
A method and device for automatically reversing a vehicle by recording its forward track and adjusting the steering wheel angle to align with the recorded path, using position, course, and curvature deviations to guide the vehicle back along the original path without the need for a U-turn.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the driver manually reverses the vehicle, then the driver can control the reversing operation, but the driving efficiency is reduced and time is consumed due to limited field of view and misjudgments
Solution Approach 1:
The reversing system uses the vehicle's own forward track data and sensing capabilities to autonomously control the reversing maneuver, eliminating the need for continuous driver intervention and judgment, thereby improving efficiency and reducing time loss
Solution Approach 2:
The system continuously monitors the vehicle's actual position during reversing using sensors and compares it with the ideal reversing trajectory, automatically adjusting the steering angle to maintain alignment with the optimal path, which improves precision and reduces corrective maneuvers
2Reliability
If the driver performs complex reversing maneuvers like U-turns on imperfect roads, then the vehicle can return to the original path, but fuel consumption increases and driving experience deteriorates
Solution Approach 1:
The system records the forward track data before the vehicle needs to reverse, having the ideal return path prepared in advance. This allows the vehicle to reverse directly along the recorded trajectory without performing unnecessary U-turns or lateral maneuvers, reducing fuel consumption while ensuring reliable return to the original path
Solution Approach 2:
The reversing control system dynamically adjusts the steering angle in real-time based on the vehicle's actual position relative to the ideal reversing path, enabling smooth and efficient trajectory tracking that minimizes energy consumption while maintaining reliable path correction
3Ease of operation
If the driver reverses with limited field of view from the forward-facing driving seat, then the driver can maintain normal seating position, but misjudgments occur due to poor visibility
Solution Approach 1:
The system replaces the driver's visual judgment and manual steering control with electronic sensing devices and automated control algorithms. Sensors detect the vehicle's actual position and the system automatically calculates and executes steering adjustments, eliminating misjudgments while keeping the driver in the normal forward-facing seating position
Solution Approach 2:
The control system acts as an intermediary between the driver's reversing command and the vehicle's actual reversing execution. It processes sensor data, calculates the ideal reversing trajectory based on recorded forward track, and automatically adjusts steering angles, thereby eliminating the need for the driver to visually judge positions and improving accuracy
Data Source
AI summary
A method and a device for automatically reversing a vehicle are provided. A forward track of a target vehicle is recorded in a forward process of the target vehicle. The target vehicle is controlled to be reversed from a current position and the target vehicle is controlled to be reversed along the forward track by adjusting a steering wheel angle of the target vehicle at each reversing moment, when an automatic reversing instruction for the target vehicle is detected after the target vehicle stops moving forward. The target vehicle is controlled to stop being reversed when a reversing stop instruction for the target vehicle is detected in a reversing process.