Vehicle handling stability detection system and detection method based on driver model

Abstract

The invention provides an automobile operation stability testing system based on a driver model and an automobile operation stability testing method. The driver model comprises a pre-scanning module, a pre-testing module, a comparing module and a control module, wherein the pre-scanning module obtains an anticipating track according to output of a trailing sensor installed on an automobile, the pre-testing module calculates a pre-testing track of automobile running according to output of a sensor inside the automobile, the comparing module enables the anticipating track and the pre-testing track to be compared and outputs deviation, and the control module calculates and outputs changing quantity of steering wheel corners through potential difference (PD) control according to the deviation. The anticipating track is a snakelike path on an automobile running path, the automobile runs around stakes along the snakelike path at setting speed, the testing system and the testing method calculate final steering wheel corners and output to the automobile to control the automobile to track the anticipating track to run according to the steering wheel corners obtained from automobile status information and the changing quantity of the steering wheel corners calculated by the driver model, and therefore, the automobile operation stability is tested.

Description

technical field [0001] The invention relates to a vehicle handling stability detection system and detection method based on a driver model to detect the vehicle handling stability, in particular, relates to a method of using a driver model instead of a skilled driver to control a vehicle under test, thereby testing A vehicle handling stability detection system and a detection method of the vehicle handling stability. Background technique [0002] With the development of modern technology, people's demand for cars is increasing, and private cars have become more and more popular. This demand has greatly stimulated the automobile market, making more and more enterprises invest in automobile manufacturing. The emergence of a large number of cars has also made the problem of traffic safety increasingly serious. In addition to ensuring safe driving through the formulation of various traffic regulations, the safety of the car itself has also attracted more and more attention. Ev...

AI Technical Summary

Problems solved by technology

However, because the test speed is generally high (80km / h or above), the test has certain dangers, and in the course of multiple tests, even a skilled driver cannot guarantee that the input to the car under test is completely consistent each time. Systematic analysis of the handling stability of the car will introduce input effects, so that the handling stability of the car cannot be evaluated objectively

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