Research on the towing torque and friction performance of hydro-viscous clutch with different friction materials

In this paper, the mathematical model of the towing torque is established and the solution is obtained. The gap of friction plate is the key factor of influencing the towing torque. Through the experiment, testing the towing torque of the different material friction plate. The paper shows that the towing torque of carbon-based friction plate is smaller than copper-based friction plate and smaller change with the speed. The trend of simulation results is consistent with the actual test results. The friction characteristics of the hydro-viscous clutch were analyzed. The parameters affecting the friction properties were determined. The experiment shows that the temperature rising of copper-based friction plates is higher than carbon-based friction plates at the same torque. In addition, the temperature distribution of the carbon-based friction plate can be consistent when the friction is under different oil pressures.