Automotive stability control real vehicle testing system

Abstract

The invention discloses an automotive stability control real vehicle testing system. The testing system is composed of three parts of a traction rod component, a transverse swing link component and a vehicle component. The two ends of the traction rod are respectively connected with a fixed shaft and the transverse swing link by pin shafts, a five-wheeled instrument is mounted on the transverse swing link so as to support the transverse swing link, the tension rods of a front wheel and a rear wheel are respectively connected to the transverse swing link and a vehicle clamping device by pin shafts, and the vehicle clamping device is fixedly connected to the vehicle. The relative motion relationship among the traction rod component, the transverse swing link component and the vehicle component is determined according to the angular displacement sensors between the traction rod and the transverse swing link and among the tension rods of the front wheel and the rear wheel and the transverse swing link and by the measurement parameter of the linear displacement sensor of the tension rod of the front wheel; the mass centre of the vehicle and the slip angle of each wheel can be measured by the front wheel steering angle measured by a vehicle running stability control system; the stress relationship among the traction rod component, the transverse swing link component and the vehicle component is determined according to the measurement parameters of the tension gauges of the front and rear wheels; and the effect for controlling the whole vehicle motion can be obtained by adjusting the side force of the whole vehicle, the transverse swing link torque and the tyre ground acting force through the whole vehicle centrifugal force measured by the vehicle running stability control system. All sensors are connected to a signal collecting system for collecting and storing signals. The tyre ground acting force is adjusted by a control system.

Description

technical field [0001] The invention relates to a real vehicle test system for vehicle stability control. The vehicle stability control is an important aspect of vehicle active safety research, and the real vehicle stability control test has high risk and great difficulty in measurement. The invention provides a safe, convenient and repeatable vehicle stability control real vehicle test system, which is helpful to technical research and product development in this field. Background technique [0002] The current vehicle stability control research is mainly carried out through vehicle dynamics simulation and real vehicle test. Vehicle dynamics simulation systems are generally based on simplified vehicle dynamics models. The rationality and accuracy of simplification affect the simulation system. The performance of the simulation research is often quite different from that of the real vehicle test; the disadvantages of the real vehicle test are high cost, long period, and grea...

AI Technical Summary

Problems solved by technology

[0002] The current vehicle stability control research is mainly carried out through vehicle dynamics simulation and real vehicle test. Vehicle dynamics simulation systems are generally based on simplified vehicle dynamics models. The rationality and accuracy of simplification affect the simulation system. The performance of the simulation research is often quite different from the actual vehicle test; the disadvantages of the real vehicle test are high cost, long cycle, and greater risk.

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