抄録
The purpose of this study is to estimate the engine output torque from the crank shaft angle. The crank shaft angle is affected by the drive train, vehicle body dynamics, and road surface condition. Hence, the drive train model and the vehicle body dynamics are derived to take their influence into account. The drive train model and the vehicle body dynamics model are derived by projection method. The unknown parameters of the drive train model are identified. Single passenger vehicle (hereinafter SPV) is used as an experimental system. The SPV has some sensors, a pressure sensor for measuring the cylinder pressure, rotary encoders for measuring the rotational angle of the crank shaft, the front sprocket, and the tires, and a torque sensor for measuring the transmitted torque from the drive train to the front sprocket. The measurement instruments are developed to realize on-line measurement on FPGA. Its effectiveness is experimentally verified.
