Control Laws for the Emulation of an Electric Vehicle Drivetrain by Two Electric Machines

Abstract

This paper presents an approach to emulate at a reduced scale, an electric vehicle drivetrain by two electric machines easily exploitable. Two control laws associated to the electric machines are established in order to reproduce at a real scale the dynamic behavior of the electric vehicle drivetrain on an equivalent electric system. The control laws are established from the dynamic behavior of the vehicle drivetrain where the driver and the control unit of the electric vehicle are taken into account. Also a scale factor is sized according to the power of the electric vehicle and the test bench of two electric machines. A validation is carried out using ARTEMIS mission profiles where energy recovery is also quantified from the highway to the jam. Therefore the proposed approach is very useful to calibrate industrial automotive test benches in order to optimize time and cost of development. Also, it's a fast way to validate and to optimize the designed control loops or other functions to implement in the control unit of the electric vehicle drivetrain.