The status and development trend of hydraulic hybrid vehicle

Abstract

The principle of energy-saving in hydraulic hybrid vehicles was introduced. The characteristics of hybrid vehicles with electric or hydraulic were compared. Because of its higher power density and higher efficiency, hydraulic hybrid vehicle is more advantageous when working under the condition changed frequently such as city bus. Different arrangement forms of the hydraulic hybrid system were analyzed to explore their own characteristics and applications. Based on the batteries with high energy density and hydraulic accumulators with high power density, a kind of combination that include their respective advantage were proposed. Keywords-Hydraulic hybrid vehicle; Energysaving ; power density; arrangement form; Status and development trend I. 2005 EPA Eaton UPS(United Parcel Service) 60 70 CO 40 [1] II.A.

Current Status and Prospects of Electric Motor Applications for Electric Vehicles

“…In comparison to brushless DC motors, PM synchronous motors have the benefit of having a power and torque density that is significantly higher than that of brushless DC motors [14]. A PM synchronous motor has no torque ripple during commutation.…”