A vehicle-in-the-loop test system for an intelligent vehicle

Abstract

The invention relates to an intelligent vehicle-in-the-loop test system, comprising: a drum platform: used to simulate the longitudinal movement of a test vehicle; an environment perception platform: arranged at the front end of the drum platform, used to simulate the lateral movement of a test vehicle, Including the lower support base and the upper vehicle placement platform, the lower part of the support base is equipped with lateral drive wheels, and the lateral drive wheels move along the lateral track on the ground; the target vehicle simulation unit: located around the environment perception platform, used for simulation target vehicle. The environmental perception platform of the present invention can perform lateral movement, thereby simulating test vehicle line change and lane change test scenarios, enabling the test vehicle to undergo yaw, pitch and roll motions, which is more realistic in the actual process, and can simulate the oncoming vehicle movement of the test vehicle Dangerous scenes, and provide a mechanism to reproduce the real steering resistance torque when the vehicle is turning, so that the steering operation of the vehicle has a correct response speed.

Description

technical field [0001] The invention relates to the technical field of smart car testing, in particular to a vehicle-in-the-loop test system for a smart car. Background technique [0002] As we all know, the current conflict between the growth of the number of vehicles and the lack of road capacity is a major challenge to the entire national transportation system. The lack of logistics and personnel transportation capacity will not only bring huge economic losses, but also cause many adverse traffic and social problems, such as various accidents caused by traffic jams. [0003] In view of the above problems, the intensive and effective utilization of the existing road network is particularly important, among which the application of advanced driver assistance systems and automatic driving systems has played a role that cannot be ignored. The advanced driving assistance system and the automatic driving system obtain road environment information through sensor equipment and c...

AI Technical Summary

Problems solved by technology

Some existing test product platforms can simulate the braking of the vehicle in front or the lane change of the vehicle on the side lane when the test vehicle is driving straight at high speed, so as to detect the safety performance of the test vehicle. The parameters of the yaw movement cannot simulate the scene of the test vehicle changing lanes and driving on a curve. At the same time, because the test platform uses a program to control the electric car to simulate the movement of other vehicles, its speed limit can not simulate the dangerous scene of the test vehicle oncoming traffic. In addition, the test platform cannot enable the sensor equipment to truly detect the road environment. For example, the vehicle-mounted camera cannot record real changes in lane markings, and cannot truly and completely simulate the test scene. Its test capabilities are limited

Images