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Switching force assistance device

An auxiliary device and shifting force technology, which is applied in the direction of fluid pressure actuators, transmission control, servo motors, etc., can solve the problems of no disclosure, etc., and achieve the effects of simple system coordination and adjustment, high dynamics, and low hysteresis

Inactive Publication Date: 2008-10-01
FESTO AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the details of how this so-called "solved" structure is implemented are not disclosed

Method used

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  • Switching force assistance device
  • Switching force assistance device
  • Switching force assistance device

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0026] 1-4 show a preferred embodiment of a shift force assist device 11 according to the invention for fluidly assisting shift forces in a transmission. The shift force assist device 11 has a servo unit 12 in the form of a double-acting hydraulic cylinder. Standard working cylinders can be used here, which simplifies the construction of the shift force assist device 11 and keeps its production costs low. The servo unit 12 has a servo housing 13 and a drive mechanism 14 in the form of a drive piston guided displaceably in the servo housing 13 . The drive mechanism 14 divides the actuating housing 13 into two working chambers 15 , 16 which can be acted upon by means of pressurized fluid. Compressed air is preferably used as pressure fluid.

[0027] As shown in particular in FIG. 3 , the drive mechanism 14 is arranged on a lever follower 17 which itself protrudes from the servo housing 13 and is connected to a transmission part 18 of the transmission. . Furthermore, a coupli...

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PUM

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Abstract

The invention relates to a switching force assistance device, which comprises a servo unit; the servo unit has servo housing and a drive mechanism which can be moveably guided in the servo housing; the drive mechanism divides the servo housing into at least two drive chambers which can be loaded by two pressure fluid, which can be connected at the gear-box via the slave unit; the drive mechanism is distributed with a control valve; the control valve has two adjustable valve components in order to control the fluid; one valve component is fixedly connected to the drive mechanism; the second valve component can relevantly adjust the first valve component and link to the switching force mechanism; the two valve components control the load of the fluid in the drive chamber at the mutually-corresponding position; the control valve is arranged outside the servo housing; the linking mechanism extending from the first valve component is linked to the drive mechanism.

Description

technical field [0001] The invention relates to a shift force assist device for fluid shift force assist in a transmission, which comprises a servo unit with a servo housing and a movably mounted servo drive in the servo housing. Guided drive unit which divides the servo housing into at least two drive chambers which can be acted upon by means of pressurized fluid and which can be connected on the gearbox side via a driven part, wherein a control valve is assigned to the drive unit , the control valve has two valve parts adjustable relative to each other for fluid control, wherein a first valve part is fixedly connected to the drive mechanism and a second valve part is adjustable relative to the first valve part and can be exchanged The gear mechanism is coupled, wherein the relative position of the two valve parts relative to each other controls the fluid loading of the drive chamber. Background technique [0002] EP 1 108 166 A1 discloses a shift force assist device of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H59/04F16H61/28
CPCF15B9/12F15B15/2815F16H61/30F16H2061/301F15B15/2807F16H61/28F16H63/00F16H63/20
Inventor S·赛勒A·肖克H·奥特
Owner FESTO AG & CO KG