Dynamic Analysis of Hydrostatic Transmission with an Axial Flow Divider

Abstract

Hydrostatic transmission is a system of speed variation of multi-drive vehicle. The use of volumetric flow divider as part of a hydrostatic transmission allows to expand the range of traction and dynamic regulation and to improve the technical characteristics of the vehicle, such as mobility (cross-country ability) and handling. The article presents the dynamic mathematical model of a hydrostatic transmission with a volumetric flow divider that controls the parameters of unadjustable hydraulic motors, and studies its dynamic transient characteristics when the electronic control unit for the pump and flow divider are switched off in the modes of rectilinear movement and maneuvering (turning) of a multi-drive vehicle. The simulation results show that a hydrostatic transmission with a volume flow divider provides effective control of the parameters of motor wheels with unadjustable hydraulic motors.