Hydraulic operating apparatus for operation of actuating elements in a motor vehicle transmission

Abstract

A hydraulic operating apparatus (10) for operation actuating elements in a motor vehicle transmission has a plurality of piston cylinder devices (14.1, 14.2, 14.3, 14.4, 14.5), whose actuating pistons(16.1, 16.2, 16.3, 16.4, 16.5) are respectively and operatively connected to the actuating elements so as to generate actuation movements of the actuating elements. A plurality of electrically actuated control devices (20.1, 20.2, 20.3, 20.4, 20.5) are also provided, which are respectively assigned to the piston cylinder devices and used to allow or prevent corresponding actuation movement of themoving elements. An electrical connection unit (36) is used to control the electrical contact and activation of the device. While the piston cylinder devices are installed on a first bearing plate (38), the control devices are fastened to the second bearing plate (40) connected to the first bearing plate. In order to protect the electrical connection unit, the electrical connection unit is arranged between the first carrier board and the second carrier board in a very compact structure.

Description

technical field [0001] The invention relates to a hydraulic operating device for operating an actuating element in a motor vehicle transmission according to the preamble of claim 1 . [0002] Such operating devices are especially widely used in modern utility vehicles, such as heavy goods vehicles and buses, in automated manual transmissions (AMT), dual-clutch or multi-clutch transmissions (DCT) or separable transfer cases and differentials In transmissions, it is sought to operate transmission actuating elements, such as shift forks and shift sleeves with or without synchronizers, and possibly dry or wet friction clutches, with maximum flexibility and minimum friction, and The requirements for construction space are minimal. Background technique [0003] Document US 2006 / 0005647 A1 forming the preamble of claim 1 discloses an integrated control module for a dual clutch transmission. The control module comprises, inter alia, a plurality of piston-cylinder arrangements, the...

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Problems solved by technology

[0006] However, there is a risk that the electrical connection unit fastened directly in the vicinity of the piston-cylinder arrangement will suffer damage during operation of the transmission due to the oil and / or metal shavings contained in the oil and / or the heat of the oil, if for this electrical connection The unit implements no special protection or sealing measures, however in the case of mass production, these measures would bring undesired increased expenditure

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