Vehicle Reverse Assist Path Control With Obstacle-Aware Positioning
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Solution Overview
Problem
Drivers face difficulties in reversing vehicles due to the need to manipulate the steering wheel while checking various elements like rearview mirrors and rearview cameras, and there is a lack of systems that provide precise steering and speed control during backward driving.
Innovation Solution
A method and apparatus that utilize sensors and cameras to determine the vehicle's location and obstacles, allowing for precise steering and speed control, with the ability to adjust paths based on detected obstacles and expected movements, and store forward driving trajectories for backward driving.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the driver manually checks rearview mirrors and cameras while steering during reverse driving, then the driver can monitor the reverse path and obstacles, but the driving operation becomes complex and difficult to control
Solution Approach 1:
The system enables self-service by allowing the vehicle to autonomously determine its location, generate reverse paths, and control steering and speed without continuous manual intervention. The vehicle uses its sensors and processors to independently monitor the reverse path and obstacles, freeing the driver from the complex task of simultaneously steering and checking multiple visual elements.
Solution Approach 2:
The patent replaces the mechanical system of manual visual monitoring with an automated electronic system. Instead of the driver physically checking mirrors and cameras, the system uses sensors, processors, and display devices to automatically detect obstacles, determine vehicle location, and present relevant information to the driver, thereby simplifying the operational burden.
2Reliability
If the driver needs to judge distance to obstacles and avoid contact during reverse driving, then collision avoidance is possible, but the driver requires special skill and attention
Solution Approach 1:
The system introduces an intermediary between the driver and the obstacle avoidance task. The processor acts as a mediator by automatically calculating the vehicle's location, generating safe reverse paths that account for obstacle distances, and controlling the steering and speed to maintain safe separation from obstacles, thereby eliminating the need for the driver to manually judge distances and possess special skills.
3Measurement precision
If the system uses multiple sensors and location estimation technologies to determine vehicle location, then location determination accuracy is improved, but the system complexity increases
Solution Approach 1:
The system merges multiple location estimation technologies and sensors into a unified location determination process. By combining data from various sensors and processing algorithms, the system achieves high location accuracy while managing complexity through integrated processing that synthesizes information from multiple sources into a single coherent vehicle location estimate.
Data Source
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AI summary
A method and apparatus for backward driving assist of a vehicle, the method comprises: obtaining first coordinate information for the real-time location of the vehicle; detecting an object around the vehicle, and obtaining second coordinate information for the real-time location of the vehicle; determining a location of the vehicle based on the first and second coordinate information; and performing backward driving assist control based on the determined location of the vehicle.