Abstract
Modelling of vehicle's motion is one of the solutions applied in the research of automotive safety. There is always a discussion which model should be used for computer simulation. Models with higher number of degrees of freedom require identification of many parameters, which are usually difficult to obtain. So, very often relatively simple flat model of vehicle's motion is applied. It needs only such parameters as mass of a vehicle, location of centre of gravity from front and rear axle, yaw mass moment of inertia and side slip characteristics of the front and rear axle. In this paper the upper mentioned model was applied, considering different side slip characteristics of the front and rear axle. The scenario of vehicle's motion was based on random changes of steering wheel angle during the road test, recording signals from on-board CAN (Controller Area Network) bus of automobile simultaneously, which were further applied in simulation.
Highlights
Research on automotive safety is conducted in a variety of ways
It may be investigation of driver’s influence on the level of traffic safety, estimating reaction times on different disturbances generated on the road as mentioned in [1,2,3,4]
Data coming from the CAN (Controller Area Network) bus of a vehicle through special measurement card, was applied
Summary
Research on automotive safety is conducted in a variety of ways. First, it may be investigation of driver’s influence on the level of traffic safety, estimating reaction times on different disturbances generated on the road as mentioned in [1,2,3,4]. Research on vehicles’ safety is analysed through the approach to automotive suspension’s modelling, vertical vibrations of automobile’s body as presented by [5,6], because the contact between tyres and road should be enough to transmit tangential forces resulting both from cornering, driving and braking forces. Computer simulation of automobile’s motion is regarded as a cheap method of investigating its important properties. It must be preceded by the road measurements, applying suitable measurement equipment. For the rapid preparation of a simulation, a flat model of a vehicle, as presented in the article, is used Another important issue are road measurement tests, for which it is necessary to apply adequate measurement equipment like data acquisition system and sensors. Data coming from the CAN (Controller Area Network) bus of a vehicle through special measurement card, was applied
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