Electric motors are increasingly being used across a wide range of applications – automotives, aerospace, automa-tion, and so on. They are compact enough to be installed almost anywhere, have great energy-saving potential, and provide power on demand, direct controllability, and easier maintenance.
You can test ECUs for all different kinds of electric motors with dSPACE HIL simulation systems.
Electric motors mainly differ from combustion engines in their highly dynamic behavior, which requires an ECU clock rate of 10-20 KHz. So that electric motor ECUs can be tested at these high sample rates, dSPACE supplies special FPGA boards for HIL simulation. They enable PWM measurement, position sensor simulation, and simulation of encoders and resolvers at a high clock rate. As well as controlling motor speed, another essential function of an electric motor ECU is to control the current. (This is in contrast to a combustion engine, where only low-load actuators need to be controlled.) The HIL simulator therefore has to be prepared for its function as a current sink and source for high power requirements.