An instrumented vehicle for offroad dynamics testing

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An instrumented vehicle for offroad dynamics testing

Pytka, Jarosław A. / Tarkowski, Piotr / Fijałkowski, Stefan / Budzyński, Piotr / Dąbrowski, Jarosław / Kupicz, Włodzimierz / Pytka, Paweł

Abstract

Highlights ► The first experimental setup to measure off-road dynamics in an open-loop mode. ► A steering robot for performing tests with a high level of repeatability. ► The capability proved by sample results from chosen research projects.

Abstract The paper presents an instrumented vehicle that was equipped with measuring systems to perform complete dynamics tests, especially in off-road conditions. The equipment consists of four wheel dynamometers, a steering robot, and a differential GPS system together with an inertial platform, a non-contact vehicle speed sensor, and an on-board computer with software to control the devices and collect experimental data. The four wheel dynamometers measure six elements; based on strain gage force transducers, it measures three orthogonal forces and three moments. The steering robot can control the steering wheel of the vehicle at a variety of excitation modes; it can carry out typical vehicle dynamics tests (ISO 7401, ISO 4138, ISO/TR3888, etc.) as well as custom engineered tests at a wide range of setting parameters (steer angle rate up to 1600deg/s). The differential GPS system gives true time vehicle kinematics data (velocities, accelerations, angles, etc.) at 10-ns sample rate and 20-mm accuracy. The base vehicle, a Suzuki Vitara 4×4, required no special modifications or changes to install the measuring equipment. The paper also describes typical tests performed with the use of the instrumented vehicle together with sample results.

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Document information

Title :

An instrumented vehicle for offroad dynamics testing

Contributors:

Pytka, Jarosław A. (author) / Tarkowski, Piotr (author) / Fijałkowski, Stefan (author) / Budzyński, Piotr (author) / Dąbrowski, Jarosław (author) / Kupicz, Włodzimierz (author) / Pytka, Paweł (author)

Published in:

Journal of Terramechanics ; 48 , 5 ; 384-395

Publication date :

2011-06-09

Size :

12 pages

ISSN :

0022-4898

DOI :

https://doi.org/10.1016/j.jterra.2011.06.003

Type of media :

Article (Journal)