STUDY OF THE DYNAMIC RESPONSE AND STATUS OF THE VEHICLE SUSPENSION ELEMENTS

The current paper describes the measurement and analysis of the dynamic response and status of the vehicle suspension elements on the bases of the MEMS inertial system. It consists of an inertial sensor network from at least two sensors, which are situated on the moving elements of the vehicle suspension. The system measures the suspension element accelerations and calculates the frequency response, attenuation time, resonance frequencies and distance between moving parts. The calculated distance is compared with the adjusted clearance and the system accuracy is shown. It is shown that the system is capable to measure the distances from 0.6 to 1.0mm with 0.1mm accuracy. The inertial data scanning is performed with a sampling frequency of 160Hz, according to the expected peak accelerations and translations.