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Method for adapting the contact points of a friction clutch

A friction clutch, clutch technology, applied in the direction of clutch, mechanical equipment, etc., can solve the problem of not being able to use the clutch, not being able to monitor the pressure of the clutch system, driving loss, etc.

Active Publication Date: 2021-04-20
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this area, it is not possible to monitor the pressure situation of the clutch system, so that no contact points can be derived in this area
For this reason, the pressure in the clutch system is usually compensated by means of a detection process (Schnüffelvorgang), which in turn can lead to loss of driving because the clutch cannot be used for a certain period of time

Method used

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  • Method for adapting the contact points of a friction clutch
  • Method for adapting the contact points of a friction clutch
  • Method for adapting the contact points of a friction clutch

Examples

Experimental program
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Embodiment Construction

[0027] exist figure 1 The structure of a hydrostatic clutch operating system 1 with a hydrostatic clutch actuator 3 as used in a vehicle is schematically shown in . A hydrostatic clutch operating system 1 includes a controller 2 for controlling a hydrostatic clutch actuator 3 . When the position of the clutch actuator 3 changes, the piston 4 of the master cylinder 5 moves to the right along the actuator stroke, wherein the volume in the master cylinder 5 is changed and a pressure p is generated in the master cylinder 5 . The pressure p is transmitted via the hydraulic fluid 6 serving as pressure medium via the hydraulic line 7 to the secondary cylinder 8 , which directly operates the friction clutch 9 . The friction clutch 9 is called a directly operated clutch, since the operation takes place without an interposed lever spring. In this case, the pressure p of the hydraulic fluid 6 induces a stroke change in the secondary cylinder 8 which acts on the actuation of the frictio...

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Abstract

The invention relates to a method for adapting the contact points of a friction clutch which is driven by a hydrostatic actuator (3) in an automated clutch operating system (1), wherein the pressure (p) The contact point is adapted according to the pressure-travel-characteristic curve, thereby determining the clamping force-travel-relationship with respect to the transmitted clutch torque (T). A method that enables a smooth start-off process to be designed, producing a reliably detectable force in the area (B) including the play of the friction clutch (9) before the clamping area (C) of the friction clutch (9). reference pressure signal (D), and after detection of said reference pressure signal (D), without monitoring said clutch torque (T) in the region (B ) to adapt the contact point.

Description

technical field [0001] The invention relates to a method for adapting the contact points of a friction clutch driven by a hydrostatic actuator in an automated clutch system, wherein the pressure-stroke-characteristic curve is obtained by means of a pressure adaptation contact point, thereby determining the clamping force-travel relationship as a function of the transmitted clutch torque. Background technique [0002] In automated clutch systems with hydrostatic actuators, besides the estimated clutch torque, the pressure in the hydraulic system as a direct measured value is an important source of information that can significantly increase the torque accuracy. For directly actuated clutches, the pressure or estimated clamping pressure or clamping force characteristic curves are used in order to determine the clutch torque directly from the coefficient of friction. Directly actuated clutches are clutches in which a pre-engaged lever sensor for changing the transmission ratio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D48/02
CPCF16D48/02F16D2048/0257F16D2500/1026F16D2500/50257F16D2500/10412F16D2500/70217F16D2500/70205F16D2500/3027F16D48/08F16D2500/50236F16D2500/70235F16D2500/70408F16D2500/70406F16D2500/1045
Inventor 乔治·格佩特
Owner SCHAEFFLER TECH AG & CO KG
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