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Vehicle energy-saving is important to relieve source shortage and protect environment. This article mainly discusses the control of parallel hydraulic hybrid heavy vehicle (PHHHV), which uses hydraulic components to recycle the brake energy. Through analyzing the two power sources and two brake systems in the PHHHVs, the control rules have been brought out. By logic threshold value control strategy,...
A method of reverse logistics network design, which is based on operation research method(i.e. set covering location model and mix-integer linear programming) and DEDS simulation method, is proposed in the paper. And take some home appliance product company which is located in Sichuan, china for example, Its reverse logistics network for television remanufacturing in Sichuan is established and optimized...
Polarization switching in a ferroelectric subjected to an electric field or a stress field is simulated using a phase-field model based on the time-dependent Ginzburg-Landau equation, which takes both multiple-dipole-dipole-electric and multiple-dipole-dipole-elastic interactions into account. The temporal evolution of the polarization switching shows that the switching is a process of nucleation,...
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