Measurement of vehicle attitude with RTK-GPS for analyzing the vehicle motion behavior

Abstract

Elucidating the relation between the phenomena evaluated by the test driver subjectively and objective data is important in the development of the steering and handling performance of the vehicle. For this purpose, we have developed a system, which estimates the 6-DOF movement of a vehicle based on the vehicle angular velocities around its three axes and the positions through plural real-time-kinematic-GPS (RTK-GPS) on the vehicle. The rotation axis of the body is defined based on the results estimated by the system, and the difference is observed in the rotation axis corresponding to the difference of subjective evaluation.