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Method for driving vehicle with at least a clutch

A clutch device and clutch technology, applied in the direction of mechanically driven clutches, clutches, intermeshing clutches, etc., can solve problems such as perfect work, and achieve the effect of reducing costs and improving accuracy

Inactive Publication Date: 2008-05-28
LUK GETRIEBE SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] For example, it is mentioned here that the known method does not work with the required perfection if the driver fuels in the disengaged state
Since the clutch is filled only after this, in addition, disengaging the clutch while the car is moving slowly (known as creeping or crawling for a short period of time) or at a standstill can cause problems

Method used

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  • Method for driving vehicle with at least a clutch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0085] The clutch input torque 12 or the engine torque is converted by the torque sensor 14 into an input torque-dependent pressure 16 which is determined by the torque sensor pressure sensor 18 and transmitted as pressure 20 to the computing device 22 . In the calculation device 22, the clutch torque 24 is calculated or estimated according to the formula: MKA=c·pMF (MKA is the clutch torque, pMF is the pressure torque sensor, c is a coefficient). At least a clutch characteristic curve is ascertained in the control (part) device 30 by means of the clutch torque 24 with reference to a reference value 28 controlled or generated by the control (part) device 26 , such as a clutch pressure value or a clutch current value. A point of 32 or the clutch characteristic curve 32. During at least part of this process, the control (sub-) unit 34 checks whether predetermined boundary conditions, such as a permissible range for the engine speed or a predetermined minimum temperature, are ful...

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PUM

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Abstract

The present invention presents a method and a device for operating a motor vehicle.

Description

technical field [0001] The invention relates to a method for driving a motor vehicle having at least one clutch device. Background technique [0002] Methods for driving motor vehicles and motor vehicles are known. In particular, a method for adapting the clutch characteristic curve of a vehicle is also known. [0003] This method works according to the so-called grab point-adaptation (Greifpunkt-Adaption) principle. Here, for example, the engine torque is measured at two different positions of the clutch. One of these two values ​​is determined with the clutch disengaged and the second is determined at a slightly higher value of several Nm, for example approximately 5 Nm to 20 Nm, from which a difference is formed. This engine torque difference is used to match the clutch characteristic curve. [0004] This known arrangement or this known method makes it possible to adapt the clutch characteristic curve in the motor vehicle with not negligible precision. [0005] Howev...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W10/02B60W10/04F16D48/02F16D48/06F16D11/00
CPCB60W2510/0657F16D48/06F16D2500/10412F16D2500/3024F16D2500/30412F16D2500/3065F16D2500/50236F16D2500/70406F16D2500/70605F16D11/00
Inventor 米夏埃尔·罗伊舍尔米夏埃尔·扎勒克尔奥斯瓦尔德·弗里德曼格奥尔格·霍梅斯
Owner LUK GETRIEBE SYST
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