Anti-Jerk Control of a Parallel Hybrid Electrified Vehicle with Dead Time

Abstract

Anti-jerk controller are essential for drive comfort during load-changes, since they reduce undesired driveline oscillations. Hybrid electrified vehicles enable greater degree of freedom to control these oscillations due to the two actuators, namely internal combustion engine and electric machine. At the same time the more complex communication structure of electronic control units in a hybrid electrified vehicle inserts more time delay in the system, which can cause instability in driveline oscillation control. This paper analysis the effect of dead time on a parallel hybrid electrified driveline model with proportional feedback controller and present a feedforward and feedback strategy with dead time compensation. Simulation results of the proposed approach show good step-response behavior and robustness against dead time.