On Dynamic Characteristics of Passenger Car Powertrain with Hydromechanical Transmission

In this paper, the powertrain of passenger car is supposed to be a concentrated parameter model with its inertia neglected, the transfer function of the system is deduced, the relationship of natural frequency between hydromechanical and mechanical & hydraulic system is revealed, and several measures to increase values of powertrain freqency are proposed. Finally, the computer calculated result of dynamic characteristics of the powertrain is given.