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Hybrid drive train

A driving system and automatic technology, applied in the direction of hybrid vehicles, motor vehicles, electric vehicles, etc., can solve the problems of poor performance, drag loss, increased motor efficiency and battery efficiency, etc.

Inactive Publication Date: 2012-09-19
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially at low temperatures, the drag loss of the transmission input shaft increases the efficiency of the motor and the efficiency of the battery is also small at this temperature
In addition, particularly in the start / stop operating state, for example in a traffic jam or at traffic lights, a restart can only be performed poorly, that is, with a delay, since a starting gear must still be engaged after the internal combustion engine has started.

Method used

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Embodiment Construction

[0013] figure 1 The drive train 1 is shown in a schematic diagram, which does not show the actual geometrical arrangement of the individual parts for the sake of a better overview of the layout of the transmission. The drive train 1 comprises an internal combustion engine 2 - here in the form of an internal combustion engine - having a crankshaft 3 on which an automatically operated friction clutch is fixedly received. Its output is fixedly connected to the transmission input shaft 5 of the automatic shift transmission 6 . In the shifting transmission 6, a plurality of gear pairs 7, 8, 9, 10, 11 for forming gears I, II, III, IV, R are provided between the transmission input shaft 5 and the transmission output shaft 12, wherein the gears Bit R is the reverse gear, and each of these gear pairs is connected with the drive wheels 14 through the differential device 13 .

[0014] Gear pairs 7, 8, 9, 10, 11 each pass through a fixed gear 15, 16, 17, 18, 19 and an idler gear 20, 21,...

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Abstract

The invention relates to a hybrid drive train comprising an internal combustion engine, an electric machine, an automatic transmission having a transmission input shaft and a transmission output shaft having a shifting actuator for engaging gear wheel pairs, which are arranged between the transmission input shaft and the transmission output shaft and which act as gear speeds, and a single automated friction clutch arranged between a crankshaft of the internal combustion engine and the transmission input shaft of the transmission. In order to enable, by means of a single friction clutch, electrical driving, recuperation not influenced by the drag torque of the internal combustion engine, and starting of the internal combustion engine by means of the electric machine, the electric machine is designed such that it can be connected alternatively between the crankshaft and the transmission.

Description

technical field [0001] The invention relates to a hybrid drive train with an internal combustion engine, an electric machine and an automatic transmission and a single automatic friction clutch between the crankshaft of the internal combustion engine and the transmission input shaft of the transmission. Background technique [0002] Drive trains of the type described above have been proposed for use in automobiles. For example, an electric motor connected to the crankshaft can be used to start the internal combustion engine and achieve boost operation with the friction clutch disengaged, wherein the electric motor supports the internal combustion engine, in particular during acceleration of the vehicle. Purely electric operation or regeneration—that is to say the conversion of the kinetic energy of the vehicle under braking during thrust operation—is possible only to a limited extent, since the drag torque of the internal combustion engine interferes and reduces efficiency. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K6/48B60K6/36B60K6/547
CPCB60K2006/4808F16H2061/0433B60K6/48B60K6/36B60K6/547Y02T10/626Y02T10/6221F16H3/006Y10T74/19051Y02T10/62B60K2006/4833B60K2006/268
Inventor J·A·莱思布里奇D·赖茨
Owner SCHAEFFLER TECH AG & CO KG
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