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Abstract

The influencing factors of the friction torque on a dry clutch are analysed, the load characteristic of a diaphragm spring is modified and the clutch clamping force model is established by using the modified load characteristic. Also, the friction coefficient model is analysed and established on the basis of the sliding speed, the pressure and the surface temperature of clutch plates using a designed friction coefficient bench. Then, the temperature model of the friction plates is obtained by the finite element programming method, and the calculation model of the friction torque on a dry clutch is constructed on the basis of the above-mentioned models. By using an automobile powertrain bench, it is verified that the friction torque calculation model helps to determine the accuracy of the friction torque on the clutch.

Keywords

Clutch friction torque friction coefficient clamping force temperature sliding speed

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The calculation model of the friction torque on a dry clutch

Abstract

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