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Method for operating a drive unit for a hybrid vehicle

A technology of hybrid electric vehicles and drive units, which is applied to the layout of multiple different prime movers of hybrid electric vehicles and general power plants, motor vehicles, etc.

Inactive Publication Date: 2015-07-22
ZF FRIEDRICHSHAFEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The two drive units known from DE 10 2006 059 591 A1 and DE 10 2010 061 824 A1 have the disadvantage that only one gear is provided for the internal combustion engine in order to couple the internal combustion engine starting from purely electric driving

Method used

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  • Method for operating a drive unit for a hybrid vehicle
  • Method for operating a drive unit for a hybrid vehicle
  • Method for operating a drive unit for a hybrid vehicle

Examples

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Embodiment Construction

[0022] figure 1 A schematic diagram showing a drive unit for a hybrid vehicle. figure 1 The drive unit comprises a drive unit 3 formed by an internal combustion engine 1 and an electric machine 2 , wherein a transmission 5 is connected between the drive unit 3 and an output 4 . The transmission 5 comprises two sub-transmissions 6 and 7, which are so to speak parallel to each other, wherein, in the embodiment shown, the first sub-transmission 6 provides the forward gears "1", "3", "5" and "7", while the second sub-transmission 7 provides forward gears "2", "4", "6" and reverse gear "R". sub-transmissions 6 and 7 in the figure 1 The gear sets shown in and the shown assignment of the gears to the two subtransmissions are exemplary properties.

[0023] To provide forward and reverse gears, the subtransmissions 6 and 7 of the transmission 5 include form-fitting shifting elements 13 , also called shifting elements. The construction and arrangement of the subtransmissions 6 and 7...

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Abstract

The invention relates to a method for operating a drive unit for a hybrid vehicle, wherein the drive unit comprises a drive assembly (3) with an internal combustion engine (1) and an electrical machine (2) and a transmission (5) having a plurality of gearboxes (6, 7) connected between the drive assembly (3) and an output (4). The electrical machine (2) is coupled via a planetary gear unit (10) to an input shaft (8) of a first gearbox (6) and an input shaft (9) of a second gearbox (7) connected in parallel with said first gearbox (6). The internal combustion engine (1) can be coupled by means of a friction-fitting decoupler (11) to the input shaft (8) of the first gearbox (6) and when the decoupler (11) is closed is coupled together with the input shaft (8) of the first gearbox (6) to the same element (15) of the planetary gear unit (10), To couple the internal combustion engine (1) to the output (4) from travel under solely electrical power, the torque provided by the internal combustion engine (1) is transferred via the decoupler (11) operated in slipping mode, so that a shifting element previously closed during solely electrical operation is relieved and to disengaged in the relieved state.

Description

technical field [0001] The invention relates to a method for operating a drive unit for a hybrid vehicle. Background technique [0002] A drive unit for a hybrid vehicle is known from DE 10 2006 059 591 A1, wherein the drive unit comprises a drive unit with an internal combustion engine and an electric machine and a transmission connected between the drive unit and an output. The transmission is designed as a dual clutch transmission and includes a plurality of sub-transmissions. The electric machine of the drive unit of the drive unit is coupled via a planetary gear to an input shaft of a first sub-transmission and an input shaft of a second sub-transmission parallel to the first sub-transmission. The internal combustion engine can be coupled via a friction-locking release clutch to the input shaft of the first sub-transmission and, with the release clutch engaged, the internal combustion engine can be coupled directly to the input shaft of one of the sub-transmissions. F...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K6/48B60K6/365B60K6/387B60W10/113B60W10/02B60W10/06B60W10/08B60W20/00F16H3/00F16H3/72
CPCY02T10/6256B60K6/48F16H37/046B60K6/387B60K2006/4816Y02T10/6221B60W10/08B60W10/113B60W20/00F16H3/725B60W10/02F16H2003/007B60W10/06Y02T10/6286B60W20/40B60K6/365F16H2200/0052F16H2003/008Y02T10/62Y10S903/91Y10S903/914Y10S903/93B60K6/442B60W2710/0644B60W2710/081
Inventor J·卡尔滕巴赫U·格里斯迈尔
Owner ZF FRIEDRICHSHAFEN AG
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