Measurement of vehicle parameters of motion without gyro-stabilized platforms

Abstract

Spatial position of vehicle C.G. as well as angular parameters of body rotation are of major importance for analysis of vehicle dynamics, handling vibrational comfort, safe service in traffic etc. The mentioned parameters are determined by use of methods of dynamic simulation in phase of development, and by means of test measurement for vehicles in real service conditions. The problem that is to be taken into consideration here is related to practical measurement of vehicle motion parameters. Translational coordinates of vehicle C.G. are usually measured on the basis of registered linear accelerations of vehicle C.G. (once or twice integrated later, for calculation of displacement or velocity) and body angles are usually measured on gyroscope-stabilized platforms. The problem which occurs in these cases is the platform price (up to 100.000 EUR), not easily affordable for researchers. This paper attempts to determine vehicle motion parameters on the ground of six registered linear accelerations of specific body spots.