Acta Armamentarii

Modeling and Optimal Control of Low-Temperature Starting Process of Electro-Mechanical Transmission for Special Tracked Vehicles

SHUAIZhibin;HEShuai;LIGuohui;LIYaoheng;LIYong;ZHANGYing;JIANHongchao

Acta Armamentarii, 2023, 44(1): 117-128. DOI: 10.12382/bgxb.2022.0803

油温区间	θ₀≤θ₁<θ_th	θ_th≤θ₁<θ_f	θ₁≥θ_f
θ₀≤θ₂<θ_f	P_o=P_hm P_d=P_dm	P_o(T_mm,n) P_d=P_dm	P_o=0 P_d=P_dm
θ₂≥θ_f	P_o=P_hm P_d=0	P_o(T_mm,n) P_d=0	P_o=0 P_d=0

Table 1 Rule-based control strategy of cold-starting process

Other figure/table from this article

Table 4 Comparison of cold-startingtimeand energy consumption of the four strategies
Fig.1 Structure of double-motor coupling drive electro-mechanical transmission
Fig.2 Quick cold starting scheme for electro-mechanical transmission
Fig.3 Diagram of energy distribution during cold starting
Fig.4 Equivalent circuit of Rint model for power battery
Fig.5 Calculation flow of cold-starting simulation
Table 2 Simulation parameters for cold-starting process
Fig.6 Temperature characteristic curves for kinematic viscosity and density of 5W hydraulic oil transmission
Fig.7 Contour curves of driving torque of the oil pump varying with speed and temperature
Fig.8 Speed curve of pump motor at different oil temperatures
Table 3 Four cold-starting strategies and parameters settings
Fig.9 Curves of oil temperature and flow under different starting strategies
Fig.10 Curves of motor power under different starting strategies
Fig.11 Comparison of power consumption under different starting strategies