Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1997-09-16
1999-09-28
Oberleitner, Robert J.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
3031192, 3031164, 439 34, B60T 836
Patent
active
059575484
DESCRIPTION:
BRIEF SUMMARY
PRIOR ART
The invention is based on an electrohydraulic unit for regulating brake fluid pressure in motor vehicle brake systems. The invention also relates to a process for assembling an electrohydraulic unit.
An electrohydraulic unit of this kind for regulating brake fluid pressure in motor vehicle brake systems as well as a process for assembling the electrohydraulic unit has been disclosed by WO,A,94/27045, FIG. 10, which defines the species.
In that instance, a hydraulic block is provided on whose one side an electric motor is affixed and on whose other opposite side, a control and regulation electronic device is affixed. Electrical connections of the electric motor, which are embodied as rigid, extend through the hydraulic block with an insulated section. An insulation-free end section of the electrical connections of the electric motor engages in the interior of the control and regulation electronic device, between electrical conductors disposed there, which belong to connections of other electrical components. The electrical components are guided on the hydraulic block in conductor guides lateral to the attachment direction of the control and regulation electronic device. When the control and regulation electronic device is affixed to the hydraulic block provided with the electric motor, the insulation-free end section of the electrical connections of the electric motor engages between two electrical conductors of the connections of other electrical components and splays the electrical conductors lateral to the attachment direction. The contact between the insulation-free end sections of the electrical connections of the electric motor and the electrical conductors of the connections of other electrical components is therefore based merely on frictional, non-positive adhesion and takes place in the interior of the control and regulation electronic device shortly before this comes to rest against the hydraulic block. A visual control of this process is only possible with difficulty.
DE,A,41 33 879 has furthermore disclosed a unit of this type. This unit has a hydraulic block, i.e. a component provided with fluid conduits and fluid chambers provided as damper or storage chambers and equipped, for example, with electromagnet valves, which component is used for hydraulically connecting and mechanically attaching components of the brake system. In the known unit, an electric motor is mounted on one side of the hydraulic block and is for driving a fluid pump disposed in the hydraulic block. Electrical connections of the electric motor, which are embodied as rigid, protrude through the hydraulic block on its opposite side, where the electromagnet valves are affixed. As a result, electrical connections of the components of the known unit are disposed together on one side of the hydraulic block.
The electrical connections are covered by a connecting piece that can be affixed to the hydraulic block and by means of which the components can be electrically connected to other components. The connecting part can have multipoint connectors for this purpose. The connecting piece is pivotably guided on the hydraulic block. In a pivoted position, the electrical connections are accessible and can, for example, be soldered to flexible lines of the connecting piece. The connections can be optically controlled. Then, the connecting piece is pivoted so that it rests against the hydraulic block, where it covers the electrical connections of the electromagnet valves and the electric motor, and is connected to the hydraulic block.
Before the soldering, in the known unit, the flexible lines of the connecting piece must be brought into contact with the electrical connections of the components affixed to the hydraulic block, which entails the expenditure of effort.
ADVANTAGES OF THE INVENTION
The electrohydraulic unit according to the invention has the advantage that the electrical conductors of its connecting piece are guided in the attachment direction of the connecting piece on the hydraulic block, which direction is pre
REFERENCES:
patent: 5137455 (1992-08-01), Moerbe et al.
patent: 5466055 (1995-11-01), Schmitt et al.
patent: 5658056 (1997-08-01), Rischen et al.
Greigg Edwin E.
Greigg Ronald E.
Oberleitner Robert J.
Robert & Bosch GmbH
Sy Mariano
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