Parameter Matching and Performance Analysis of a Master-Slave Electro-Hydraulic Hybrid Electric Vehicle

Abstract

To improve the battery state of charge (SOC) of the electric vehicle (EV), this paper proposes a master–slave electro-hydraulic hybrid electric vehicle (MSEH-HEV). The MSEH-HEV uses a planetary row as the core transmission component to realize the interconversion between mechanical energy, hydraulic energy and electrical energy. Meanwhile, this paper introduces the six working modes in vehicle operation, matches the parameters of key components to the requirements of the vehicle’s performance and designs a rule-based control strategy to dominate the energy distribution and the operating mode switching. The research uses AMESim and Simulink to perform a co-simulation of the MSEH-HEV, and the superiority of MSEH-HEV is testified by comparing it with an AMESim licensed EV. The simulation results show that in the Economic Commission for Europe (ECE) and the Extra Urban Driving Cycle (EUDC), the MSEH-HEV has a 15% reduction in battery consumption, and the motor peak torque is greatly reduced. Moreover, a fuzzy control strategy is designed to optimize the rule-based control strategy. Ultimately, the optimized strategy further reduces the motor torque while maintaining the battery SOC. In this paper, the applicable research consists of the necessary references for the design matching of future electro-hydraulic hybrid electricity systems.

Investigation on the external characteristics of permanent magnet synchronous mechatronic-electro-hydraulic coupler

“…a a is the temperature coefficient of the armature winding resistance at the start of motor operation. For copper, a ' 0.004°C 21 . t a is the temperature at the start of motor operation.…”

“…Verification results indicated a reduction of 14.418% and 21.174% in the battery consumption rate for the MEH-PCEV in the new European driving cycle and the American city cycle, respectively. Jia et al 21 proposed a master-slave type hybrid electric-hydraulic power vehicle (MSEH-HEV). They designed a rule-based control strategy for energy allocation and mode switching.…”

Influence of the Selection of the Electric Motor/Engine Assembly on Dynamic Performances and Fuel Consumption of Hybrid Vehicles

“…These shortcomings persist at this point, regardless of how long the autonomy of the HEVs or EVs is. It should be mentioned that for HEVs not only the battery capacity is important, but also, the energy management system, and the powertrain architecture; for this reason, the subject is always relevant, and new solutions are sought [4][5][6][7][8][9][10].…”

Energy Management Strategy Optimization for a Novel Electric‐hydraulic Power Coupling Vehicle Considering the Influence of Multiple Driving Cycles

“…The rationality of the parameters and the superiority of the MSEH‐HEV is verified. [ 16 ] Liu proposed an electric–hydrostatic hydraulic hybrid rail vehicle to address the low energy efficiency and poor downhill stability of the battery‐powered rail vehicle. [ 17 ] Zhou conducted a parametric study on the hydraulic drive (HD) system of a medium‐sized vehicle to meet its power requirements under urban driving conditions.…”