Modelling and Control of a Novel Hydraulic Hybrid Vehicle with Wheel Motors

Hydraulic hybrid vehicle is an alternative clean automobile technology. A novel hydraulic hybrid vehicle with wheel motors is proposed in this paper to improve vehicle fuel economy. A vehicle power system controller is designed and a rule-based control strategy is applied by the controller. A forward simulation model of the vehicle is built and system parameters are matched. The JC08 cycle is simulated by the model. Simulation results indicate that fuel consumption is decreased from 15L to 10.61L per 100 kilometers compared with the conventional vehicle. Vehicle fuel economy is improved about 29.27%. The designed controller makes engine work in best performance area.