Powertrain portion for internal combustion engine of motor car, has gearbox with switch for actuation of switching elements, where force produced by machine is transferred to crankshaft or input element of switch, by coupling devices

摘要

#CMT# #/CMT# The powertrain portion has a gear wheel change-speed gearbox (20) with a drum switch (46) for actuation of switching elements of the gearbox. An electric machine (52) is connected with the drum switch and with an internal combustion engine (10). A rotatory force produced by the electric machine is transferred to a crankshaft (12) of the engine or an input element e.g. shaft (56), of the drum switch, by coupling devices e.g. clutch elements (58) such as freewheel or switchable clutch elements (60). The machine is used as a starter for the engine. #CMT# : #/CMT# The switching elements are designed as a sliding sleeve (34), synchronous body (36) and a shift fork (44). #CMT#USE : #/CMT# Powertrain portion for an internal combustion engine of a motor car. Can also be used for a motorcycle. #CMT#ADVANTAGE : #/CMT# The rotatory force produced by the electric machine is transferred to the crankshaft of the engine or the input element of the drum switch, by the coupling devices, thus realizing drive of the drum switch in a simple and cost-effective manner while reducing weight of the powertrain portion. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a schematic view of a powertrain portion. 10 : Internal combustion engine 12 : Crankshaft 20 : Gear wheel change-speed gearbox 34 : Sliding sleeve 36 : Synchronous body 44 : Shift fork 46 : Drum switch 52 : Electric machine 56 : Shaft 58 : Clutch elements 60 : Freewheel or switchable clutch elements.