Abstract
The goal of this study is to use different data acquisition devices based on GPS (global positioning system) receivers and/or IMU (inertial measuring unit) sensors for ascertaining the vehicle’s dynamics performances. The acquisition systems used were with two GPS receivers, one GPS receiver and one inertial unit, and two GPS receivers and one inertial unit. The parameters that can be determined include velocity, longitudinal and lateral acceleration, slip angle, yaw rate, turning radius. Raw data are filtered using digital filters like CFC (Channel Frequency Class) or Kalman, and values measured with one device are used to improve the quality of data taken with another device. The tests performed involved accelerating, braking and turning. The collected data are processed using the proprietary software of the commercial acquisition systems, and also some original developed software applications.
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