A HIL test bench for FCHV control units

Abstract

to validate control software and test the control units in the fuel cell hybrid vehicle (FCHV) more safely and effectively, this paper designs a hardware-in-loop (HIL) test bench for testing the control units of propulsion system of a FCHV. Based on the understanding of the whole system and corresponding distributed control units, a forward simulation model is introduced with detailed DC/DC and electric drive model. Then a HIL test bench based of an Opal-RT HILBOX and a dSPACE Simulator is built. Compare with data of an actual FCV cycle test, the HIL test bench's function, expansibility and future development are discussed.