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Method of operating a motor vehicle with a dual-clutch transmission and a control device for implementing it

A dual-clutch transmission and clutch technology, applied in control devices, transportation and packaging, transmission control, etc., can solve the problem of free shaking depending on the driver's flexibility, and achieve the effect of reducing the burden

Inactive Publication Date: 2019-03-08
ZF FRIEDRICHSHAFEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, intervention on the driver's side is required, so free roll depends on the dexterity of the driver

Method used

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  • Method of operating a motor vehicle with a dual-clutch transmission and a control device for implementing it

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] The invention relates to a method for operating a motor vehicle with a dual clutch transmission and a control device for carrying out the method.

[0016] figure 1 Shows a very schematic drive train diagram of a motor vehicle, where figure 1 Shown therein is a powertrain 1, a driven end 2, and a dual clutch transmission 3 coupled between the powertrain 1 and the driven end 2.

[0017] The dual-clutch transmission 3 has a first partial transmission 4 with a first transmission input shaft 5 and a second partial transmission 6 with a second transmission input shaft 7, wherein the two partial transmissions 4, 6 share a common transmission output shaft 8. effect. The first partial transmission 4 is assigned a frictionally locked first power shift clutch 9 and the second partial transmission 6 is assigned a frictionally locked second power shift clutch 10, wherein the corresponding power shift clutch 9 or 10 is In the closed state, the corresponding transmission input shaft 5 o...

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PUM

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Abstract

The present invention relates to an operation method of a motor vehicle with a dual-clutch transmission and a control device for executing it. The dual-clutch transmission has: first and second transmissions respectively equipped with input shafts of the first and second transmissions; respectively assigned to the first and second transmissions The first and second friction-locking power shift clutches of the input shaft; the common transmission output shaft; in the free-rolling operation mode of the motor vehicle, one sub-transmission is engaged in the predetermined gear of the main driving direction on the driver's side, and the other is at the same time A sub-transmission engages the gear of the opposite secondary direction of travel, and the clutch is alternately opened and closed. In order for the motor vehicle to shake freely, rely on the accelerator pedal on the driver's side to operate and close the clutch of the sub-transmission that is engaged in the gear of the predetermined main driving direction on the driver's side. Conversely, when there is neither accelerator pedal operation nor When the brake pedal on the driver's side is operated, the clutch of the sub-transmission that is engaged in the opposite secondary driving direction is automatically closed.

Description

Technical field [0001] The invention relates to a method for operating a motor vehicle with a dual clutch transmission. In addition, the present invention also relates to a control device for executing the method. Background technique [0002] DE 101 09 662 B4 discloses a method for operating a motor vehicle with a dual-clutch transmission, which method is used, for example, to provide a short-term repetitive change in the direction of travel during free rocking (Freischaukeln). The dual-clutch transmission has two sub-transmissions, wherein each sub-transmission has an independent transmission input shaft, and among them, the two sub-transmissions cooperate with a common transmission output shaft. The first sub-transmission is assigned a first power shift clutch with friction locking, and the second sub-transmission is assigned a second power shift clutch with friction locking, wherein the corresponding power shift clutch in the closed state will The corresponding transmission...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H61/02F16H59/18
CPCF16H59/18F16H61/0213F16H2059/082B60W10/06B60W30/18045B60W10/113B60W2540/10B60W2540/12B60W2540/30B60W2710/1005B60W2710/021B60W10/02B60W2540/215
Inventor 罗兰·梅尔
Owner ZF FRIEDRICHSHAFEN AG