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Drive trains for motor vehicles

A drive system and motor vehicle technology, applied in the drive system field, can solve problems such as shift extension and internal combustion engine power limitations, and achieve the effects of reducing shift time, realizing gear replacement, and improving shift quality

Active Publication Date: 2018-05-15
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The dynamics of the internal combustion engine are limited due to the large rotating mass, especially in combination with torsional vibration dampers, such as a split flywheel with a large flywheel mass, so that, for example, the shifting is prolonged during automatic gear changes

Method used

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  • Drive trains for motor vehicles

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Embodiment Construction

[0018] The single FIGURE schematically shows the upper half of a drive train 1 arranged around an axis of rotation d with: a merely implied internal combustion engine 2 with a crankshaft 3 ; a torque transmission device 6 arranged on the crankshaft 3 and only Between the transmission input shaft 4 of the implied automatic transmission 5 there is a torsional vibration damper 7 and a wet-running friction clutch 8 . The torsional vibration damper 7 is designed as a dual-mass flywheel 9 with an input 11 connected to the crankshaft 3 and receiving the spring arrangement 10 as primary flywheel mass, and an output 14 connected to the The transition plate 13 is connected. The secondary flywheel mass of the dual-mass flywheel 9 forms a centrifugal force pendulum 15 and a friction clutch, and the centrifugal force pendulum is formed by a flange part 16 and a pendulum mass 17 .

[0019] The input part 11 and the output part 14 can be twisted relative to each other against the action of ...

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Abstract

The invention relates to a drive train for a motor vehicle, comprising: an internal combustion engine with a crankshaft; an automatically operated shift transmission with a transmission input shaft and a transmission housing forming a clutch housing together with the internal combustion engine; received on the crankshaft by means of an input The torsional vibration damper; downstream of it, the self-operating friction clutch is connected to the output of the torsional vibration damper, is received in the clutch housing and is connected in a rotationally locking manner with the transmission input shaft. In order to shorten the shifting times of the automatic transmission and thus the interruption of tractive force, the friction clutch is accommodated in a wet space which is sealed against the torsional vibration damper and the clutch housing by means of a cover plate, with anti- An outer plate carrier that receives the input plates in a torsionally fixed manner and an inner plate carrier that receives the output plates in a torsionally fixed manner on the output side, the output plates are stacked alternately with the input plates, in the wet space there are The lockingly connected flange portion driving the outer friction lining support has a centrifugal force pendulum with a pendulum mass arranged radially outside the outer friction lining support.

Description

technical field [0001] The invention relates to a drive train for a motor vehicle comprising: an internal combustion engine with a crankshaft; an automatically operated shift transmission with a transmission input shaft and a transmission housing forming a clutch housing together with the internal combustion engine; a torsional vibration damper on the crankshaft; and a self-operating friction clutch connected downstream of the torsional vibration damper, connected to the output of the torsional vibration damper, received in the clutch housing and rotationally locked with the transmission input shaft ground connection. Background technique [0002] A drive train with an automatically shifted transmission is known, for example, from DE 103 16 421 A1, in which the automatically operating friction clutch between the internal combustion engine and the transmission is designed as a dry-operating friction clutch. Due to the large rotational mass, especially in combination with a t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H61/30F16F15/30F16D25/12
CPCF16D25/12F16F15/30F16H61/30F16H2306/00F16F15/134F16F15/14F16D25/082
Inventor A·格茨
Owner SCHAEFFLER TECH AG & CO KG
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