Road Load Simulation Algorithms Evaluation Using A Motor-in-the-loop Test Bench

resent research evaluates three typical road load algorithms, like PI algorithm (PIA), feed forward algorithm (FFA) and inverse model algorithm (IMA), for electric powertrain testing. Models of vehicle, driver and test bench are established in MATLAB/Simulink environment, which has structural consistency with real motor-in-the-loop test bench. A novel vehicle state observation is used to reflect the effect of road loading and inertia emulation. To evaluate road load simulation, each algorithm is validated in off-line simulation and HIL testing. The results show FFA and IMA have advantageous in speed control precision, torque responds and state point tracking.