A method for local heating of a viscous elastic component of a hydrostatic actuator of a vehicle and a hydrostatic clutch actuator

An actuator, viscoelastic technology used in clutches, fluid-driven clutches, non-mechanically-driven clutches, etc.

Active Publication Date: 2016-03-02
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, radial shifts or changes in the angular position of the piston are particularly challenging for the sealing function of the seal at low temperatures when operating hydrostatic actuators.

Method used

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  • A method for local heating of a viscous elastic component of a hydrostatic actuator of a vehicle and a hydrostatic clutch actuator
  • A method for local heating of a viscous elastic component of a hydrostatic actuator of a vehicle and a hydrostatic clutch actuator

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Experimental program
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Embodiment Construction

[0017] Like features are provided with like reference numerals.

[0018] figure 1 The basic structure of a hydrostatic clutch system 1 for a motor vehicle is shown. This schematic diagram only shows the structure for operating one of the two clutches of the dual-clutch transmission, the operation of the other clutch proceeds similarly. On the drive side 2 , the hydrostatic clutch system 1 includes a control device 3 , which controls an actuator 4 . The actuator 4 is connected to the piston 6 of the master cylinder 7 via the transmission 5 . When the actuator 4 and thus the piston 6 in the master cylinder 7 is displaced to the right along the actuator path, the volume of the master cylinder 7 changes, whereby a pressure p builds up in the master cylinder 7 , which is passed through the hydraulic fluid 8 via the hydraulic The line 9 leads to the output side 10 of the hydrostatic clutch system 1 . The hydraulic lines 9 are adapted to the installation space conditions of the v...

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PUM

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Abstract

The invention relates to a method for local heating of a viscous elastic component of a hydrostatic actuator of a vehicle, in particular a hydrostatic clutch actuator, in which the hydrostatic actuator (13) comprises a cylinder (7), in which a piston (6) is mounted axially movable , by an electric motor (14) is moved via a transmission (5), whereby a hydraulic fluid (8) in a hydraulic path of the hydrostatic actuator (13) is moved opposite to the area with viscous elastic components (19, 20, 21) is sealed. is the case of a method in which the operation of the hydrostatic actuator over a wide temperature range, at least one viscous elastic component (19, 20, 21) at low outdoor temperatures, and when the ignition of the vehicle is controlled by a current supply of an electrical circuit (22).

Description

technical field [0001] The invention relates to a method for locally heating a viscoelastic component of a hydrostatic actuator of a vehicle, in particular a hydrostatic clutch actuator, wherein the hydrostatic actuator comprises a cylinder in which a shaft Mounted displaceably is a piston which is moved by an electric motor via a transmission, whereby hydraulic fluid is displaced in the hydraulic path of the hydrostatic actuator, which is sealed from the surroundings by means of viscoelastic components. Background technique [0002] Hydrostatic clutch actuators are used in motor vehicles for actuating the vehicle clutch, which are known from DE 10 2010 047 800 A1 and DE 10 201 004 7801 A1. This hydrostatic actuator consists of a master cylinder containing a housing and an axially displaceable piston in the housing, which pressurizes a pressure chamber, a transmission for converting rotational motion into axial motion, and a rotary drive The electric motor of the transmissi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D25/08F16D48/02B60K23/00
CPCF16D25/08F16D29/005F16D48/02F16D2025/081F16D2048/0212F16D2300/08
Inventor 马尔科·特雷德马丁·齐默尔曼于尔根·格哈特迪迪埃·扎赫尔菲利普·科默雷尔
Owner SCHAEFFLER TECH AG & CO KG
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