Parameters Matching and Simulation on a Hybrid Power System for Electric Bulldozer

Hybrid power systems, formed by two motors and high-energy-density batteries in appropriate ways, provide high-performances and high-efficiency power for electric bulldozer. This paper firstly constructs the mathematical model of driving motors system based on the design of dual-motor-driving propulsion system for bulldozer. The requirements of several main parameters are analyzed. Secondly, by using the setting values from a bulldozer, simulation work is implemented, and parameters of the hybrid power system are matched, and finally, based on MATLAB/Simulink, dynamic models for the dual-motor-driving hybrid power system is established, and the simulation results are discussed.