Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1989-12-19
1991-08-20
Graham, Matthew C.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
303113, 439 76, B60T 832
Patent
active
050408534
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to an electrohydraulic pressure control system and, more particularly, to a brake pressure control means, such as an anti-locking control system or a traction slip control system, comprising one or more electromagnetically actuable hydraulic valves (electromagnetic valves) located in block-type manner within a valve-receiving body. The system includes coils protruding beyond the valve-receiving body, with the coils, on the parts thereof protruding beyond the valve-receiving body, being provided with contact elements. The system further comprises a lid covering the protruding coil parts and the contact elements, a carrier element for conductors which is disposed within the lid, and comprising an electronic control means or controller.
Electrohydraulic pressure control means for anti-locking control systems and traction slip control systems are known in the art which include an electronic controller and a valve block. For example, German Patent Application P 37 23 106.5 teaches a brake pressure control means for anti-locking and traction slip control for use with automotive vehicles. This known brake system is provided with a master cylinder, a hydraulic booster for the master cylinder, a pressure fluid supply means consisting of a motor-driven pump and a pressure accumulator, a pressure modulator, consisting of electromagnetically actuable inlet and outlet valves for the wheel cylinders. These systems include sensors for detecting the wheel peripheral speed, an electronic controller for processing the sensor signals and for generating output signals for controlling the inlet and outlet valves. This type of brake pressure control system operates on a hydraulic booster disposed in coaxial relationship to the master cylinder. As another example, German Patent Application P 37 27 330.2 describes a brake pressure control system, in particular, an anti-locking control system, for a hydraulic brake system for use with automotive vehicles, comprising a vacuum brake force booster.
In known brake pressure control systems, hydraulic assemblies of the type as described in German Patent Application P 37 29 216.1 are employed. German Patent Application describes a hydraulic assembly for a hydraulic controller or regulator, especially for a brake pressure control means in anti-locking control systems or traction slip control systems for use with automotive vehicles. The system comprises at least one valve block including a group of electromagnetically switchable valves, and a connector part for additional components of the controller or regulator. According to that German Patent Application it is suggested that the pressure fluid inlets and outlets of the electromagnetically switchable valves which are switched-connected to pressure fluid inlets and outlets of the additional components of the controller or regulator, are located in the area of an external face of the valve block. The pressure fluid inlets and outlets of the additional controller or regulator are disposed in the area of an external face of the connector portion of the controller or regulator. At least one distributor element is provided which includes pressure fluid channels interconnecting switch-wise associated inlets and outlets of the valve block, and of the other components of the controller or regulator.
In these conventional systems, a separate arrangement of the valve block and of the electronic controller is provided which is disadvantageous. This construction and assembly of the all-over system in the automotive vehicle thereby is rendered complex and expensive, and further requiring extensive cable harness.
It is therefore an object of the present invention to provide an integral assembly unit comprising the hydraulic unit and the electronic controller. The cables and plug-connectors thereby are reduced. In combining the controller and the hydraulic unit to form an assembly, toward the end of providing a simplified manufacture, a balanced tolerance is to be provided between the components of the assembly. The cost o
REFERENCES:
patent: 4409641 (1983-10-01), Jakob et al.
patent: 4689721 (1987-08-01), Damerow et al.
patent: 4813448 (1989-03-01), Leiber
patent: 4842525 (1989-06-01), Galloway et al.
patent: 4929038 (1990-05-01), Reinartz et al.
Burgdorf Jochen
Reinartz Hans-Dieter
Vellmer Arnim
Volz Peter
Alfred Teves GmbH
Graham Matthew C.
Lewis J. Gordon
Seitter Robert P.
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