DRIVING FORCE TRANSMISSION APPARATUS AND CONTROLLER FOR DRIVING FORCE TRANSMISSON APPARATUS

摘要

A driving force transmission apparatus includes: an electric motor; a multi-disc clutch including outer clutch plates and inner clutch plates that are disposed coaxially with each other so as to be rotatable relative to each other and that are frictionally engaged with each other by being pressed in an axial direction; an input rotary member that rotates together with the outer clutch plates; an output rotary member that rotates together with the inner clutch plates; a cam mechanism that generates cam thrust force for pressing the multi-disc clutch in the axial direction upon reception of torque generated by the electric motor; a strain sensor that detects reaction force against the cam thrust force; and a spring member that is disposed between the cam mechanism and the strain sensor and that buffers an impact transmitted from the cam mechanism to the strain sensor.

主权项

1. A driving force transmission apparatus comprising:
an electric motor; a clutch including a first friction member and a second friction member that are disposed coaxially with each other so as to be rotatable relative to each other and that are frictionally engaged with each other by being pressed in an axial direction; an input rotary member that rotates together with the first friction member; an output rotary member that rotates together with the second friction member; a cam thrust force generating mechanism that generates cam thrust force for pressing the clutch in the axial direction upon reception of torque generated by the electric motor; a detector that detects reaction force against the cam thrust force; and a buffer that buffers an impact transmitted from the cam thrust force generating mechanism to the detector.