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Method and control device for operating a powertrain system

A technology of powertrain and control device, applied in the direction of power device, control device, pneumatic power device, etc., can solve problems such as insufficient feasibility

Inactive Publication Date: 2019-02-19
ZF FRIEDRICHSHAFEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this has only insufficient feasibility in drive trains known from practice

Method used

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  • Method and control device for operating a powertrain system
  • Method and control device for operating a powertrain system
  • Method and control device for operating a powertrain system

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0016] The invention relates to a method and a control device for operating a drive train.

[0017] figure 1 A schematic diagram of a drivetrain of a motor vehicle is shown, in which the method according to the invention and the control device according to the invention are preferably used. figure 1 The powertrain of the system comprises two drives 1, 2, a transmission 3 and an output 4. The transmission 3 includes at least one planetary gear stage 5 and a plurality of shifting elements 9 .

[0018] The first drive 1 , preferably an internal combustion engine, acts on a first transmission shaft 6 of the transmission 3 , wherein the first transmission shaft 6 is a transmission input shaft of the transmission 3 .

[0019] The second driving device 2 is preferably an electric motor, and the second driving device acts on the second transmission shaft 7 of the transmission 3, wherein the second transmission shaft is a shaft inside the transmission, viewed along the direction of t...

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Abstract

The invention relates to a method for operating a powertrain comprising a plurality of drive units (1, 2), a transmission (3) and an output (4), wherein a first drive (1) acts on the first transmission shaft (6) of the transmission (3), and the second drive device (2) acts on the second transmission shaft (7) of the transmission (3), wherein the transmission (3) includes multiple a shifting element (9), which provides an output torque at the output (4) in relation to the torque desired by the driver, and in order to open the shifting element (9) of the transmission (3), place the shifting element (9) to be opened no load.

Description

technical field [0001] The invention relates to a method and a control device for operating a drive train. Background technique [0002] The drive train of a hybrid vehicle comprises a plurality of drive units (ie a first drive unit in the form of an internal combustion engine and a second drive unit in the form of an electric machine), a transmission and an output. In a drive train of this type in a hybrid vehicle, a first drive device acts on a first transmission shaft of the transmission, and a second drive device acts on a second further transmission shaft of the transmission. The transmission of the drivetrain comprises a plurality of shifting elements, which are typically designed as frictional shifting elements, for example as clutches or brakes. An output torque is provided at the output of the drivetrain which is dependent on the torque desired by the driver. In certain operating situations of such a drive train, it is necessary to open a previously closed shift e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K6/365B60K6/387B60K6/48B60K6/547B60W10/06B60W10/08B60W10/115B60W30/19B60W20/30B60W20/10
CPCB60W10/06B60W10/08B60W10/11B60W20/30F16H59/16B60W2710/105B60K6/387B60K6/547B60W10/115B60W30/19B60K2006/4816B60W2540/10B60W2710/0666B60W2710/083B60W20/10B60K6/365B60K6/48B60W20/11Y10S903/93Y02T10/62B60K6/20F16H3/728F16H2200/2064
Inventor T·策尔纳
Owner ZF FRIEDRICHSHAFEN AG