System and method for predicting turning path of vehicle

Abstract

The invention provides a system and a method for predicting a turning path of a vehicle. The method includes acquiring a true turning angle of a front outer-side steering wheel of the vehicle by the aid of a steering wheel angle sensor or a wheel angle sensor; transmitting a turning angle signal to a vehicular ECU (electronic control unit); enabling the ECU to compute and acquire a path circle of a certain point according to an outer-side wheel turning angle algorithm; displaying the path circle in an image photographed by a tail or front camera; increasing the turning angle to reduce a turning radius until the vehicle can safely avoid obstacles if the path circle penetrates the obstacles; continuing updating the path circle in video images along with change of the turning angle of the front outer-side steering wheel. The tail or the head of the vehicle can be easily collided with the obstacles at the certain point. The vehicle can safely avoid the obstacles at the current turning angle of the wheel if the path circle is separated from the obstacles by certain distances, and the vehicle cannot safely avoid the obstacles if the path circle penetrates the obstacles. The system and the method have the advantages that whether the vehicle can safely avoid the obstacles or not can be visually predicted by the method, and accordingly the driving safety performance and the intelligence level can be improved.

Description

technical field [0001] The present invention relates to the technical field of vehicle steering control, and more particularly to a vehicle turning track prediction system and method. Background technique [0002] In the prior art, the driver often has the following situations when the vehicle is turning, especially in the process of reversing: one, the two ends of the tail of the car are more prominent, and the rear objects in the rearview mirror are blocked by the body, so it is not easy to turn when reversing Judging whether you can avoid obstacles in the rear, in many cases, you need someone to help guide the reversing; Second, many A-class and B-class cars are equipped with a reversing imaging system. In some reversing images, the distance from the rear of the car will be displayed. This display method can only prompt the relative position of the car and the obstacle, but cannot predict whether the car can safely avoid the obstacle. The same is true for vehicles turnin...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the driver often has the following situations when the vehicle is turning, especially in the process of reversing: one, the two ends of the tail of the car are more prominent, and the rear objects in the rearview mirror are blocked by the body, so it is not easy to turn when reversing Judging whether you can avoid obstacles in the rear, in many cases, you need someone to help guide the reversing; Second, many A-class and B-class cars are equipped with a reversing imaging system. In some reversing images, the distance from the rear of the car will be displayed. This display method can only prompt the relative position of the car and the obstacle, but cannot predict whether the car can safely avoid the obstacle.

The same is true for the vehicle turning forward. Although some advanced vehicles have cameras installed on the front of the car, the same camera cannot predict the trajectory of the vehicle, and thus cannot predict whether the car can safely avoid obstacles ahead.

Therefore, the vehicle turning imaging system in the prior art only gives simple field of view images, and cannot predict the turning trajectory of the vehicle, so that the driver cannot know in advance whether the vehicle turning can avoid obstacles in front of and behind the vehicle, so the development of A technology that can predict vehicle turning trajectories is of great significance to the intelligent development of automobiles

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