Modeling the Vehicle Movement and Braking Effect of the Hydrostatic Regenerative Braking System

Abstract

In this study, the main elements of a hydrostatic regenerative braking system have been modeled. The model which has been created, the elements in the system and the relationship of the system with the vehicle has been studied. In order to measure the performance of the regenerative system, driving cycles for accelerating and stopping the vehicle using only the hydraulic system have been simulated. Simulation studies have indicated that by using this system, a vehicle such as a heavy truck can be accelerated up to 4m/s velocity and moved more than 100m. The energy needed for this motion can again be stored by the regenerative braking system. Results indicate that accumulator can be fully charged in seconds with initial speed of 15 m/s. This model can be used in determining hydraulic elements that can be used in experimental studies. The calculation of losses is also planned to be incorporated to the model in the future.

Keywords

• hydrostatic regenerative braking system
• hybrid vehicle
• hydraulic hybrids
• hydraulic system modeling
• accumulator modeling