Improved Performance for the Synchronization of the Angular Velocity in Hybrid Electric Vehicles using a Feedforward Strategy

In this paper a multivariable control design task in the field of parallel hybrid electric vehicles is discussed. The control design covers the speed synchronization of two propulsion aggregates using a controllable separation clutch. During the synchronization period the longitudinal vehicle motion of the vehicle should not be affected. The proposed control strategy is based on a feedforward controller and two decoupled feedback controllers. The performance and robustness properties of the closed-loop system are shown by nonlinear simulation results.