Continental Teves, Ag and Company Ohg

Continental Automotive Technologies Gmbh

Aumovio Germany Gmbh

Christian Courth

Christoph Voss

Heiko Gensert

Harald Biller

Marc Lenz

Joachim Bohn

Daniel Cvetanovic

Hans-Jörg Feigel

Stefan A Drumm

Michael Zydek

Axel Hinz

Holger Kollmann

Christian Schulz

Jan Hoffmann

Marco Besier

Paul Linhoff

Uwe Folchert

Dierk Hein

Andreas Neu

Jochen Zimmermann

Michael Hitzel

Roland Caspari

Robert Grimm

Jochen Beuss

Heiko Gastauer

Christian Witala

Sigismund Jones

Marcus Forche

René Lenz

Ralf Kaiser

Hinz Axel

José Garcia-Quilon

Axel Nieder-Vahrenholz

Fabian Wey

Jochen Klein

André Schröder

Anne Seidel

Ulrich Lohse

A brake system for a motor vehicle comprises a hydraulic line system with at least one normally closed hydraulic valve, wherein a final stage is provided for electrically actuating the at least one hydraulic valve. To minimize noise emissions, the final stage is a final stage with analog control and a computing unit is provided which is configured to determine a valve current based on a pressure difference across the hydraulic valve and to actuate the final stage to make the valve current available at the hydraulic valve.

Brake system with noise-optimized valve control

A solenoid valve has a valve plunger which is guided in a passage bore of a valve housing. The valve plunger with its valve closing element is held in a basic position by a restoring spring. The basic position opens up a valve passage in a valve seat. The valve plunger is arranged between an inlet and an outlet channel in the valve housing. A magnet armature provides actuation of the valve plunger. An inlet chamber is connected to the inlet channel between the passage bore and the valve seat. The valve plunger protrudes into the inlet chamber by way of a step section. As a result of being hydraulically impinged on by the pressure medium of the inlet channel an axial force is generated on the valve plunger that acts oppositely to the closing direction of the valve plunger.

Solenoid valve for a slip-controlled motor-vehicle brake system

A valve arrangement is inserted between a master brake cylinder and a reservoir in a housing of an electrohydraulic motor vehicle brake system which can be activated both by a vehicle driver and independently of the vehicle driver. The valve arrangement can be acted on by a volume flow which can be conveyed by a linear actuator in the direction of a pedal travel simulator, the working chamber of the pedal travel simulator being connected to the master brake cylinder, wherein, for the purpose of simplified construction and actuation, the valve arrangement has a hydraulically actuable non-return valve and a fixed orifice arranged parallel to the non-return valve. The non-return valve is arranged together with the fixed orifice in a valve carrier which is fastened to a closure plug which closes the housing of the motor vehicle brake system.

Valve arrangement

A method for monitoring a hydraulic brake system for a motor vehicle, wherein a diagnostic valve is omitted and, instead, air volume and leakage are identified by a volume balance during generation of a dynamic pressure. An associated brake system is also disclosed.

Method for monitoring a hydraulic brake system for a motor vehicle and brake system

A second electrohydraulic brake control device for a motor vehicle comprises a pressure control valve assembly, an controllable pressure source and a reservoir connection. For a group of wheel brakes, the second electrohydraulic brake control device is connected in series between the associated output pressure connections of a first or main brake control device and the vehicle wheel brakes.

Brake system and brake control device

A brake system for a motor vehicle with at least four hydraulically activated wheel brakes, including for each of the wheel brakes an electrically activated first wheel valve which is designed to be open when de-energized and an electrically activated second wheel valve which is designed to be closed when de-energized, a first electrically activated pressure source, which is connected to the first wheel valves via a first brake supply line, a second electrically activated pressure source, and a pressure medium reservoir vessel which is, in particular, at atmospheric pressure, wherein the second electrically activated pressure source is connected to the second wheel valves via a second brake supply line, and a method for operating said brake system.

Brake system and method for operating a brake system of this kind

An electromagnetic valve whose inlet and outlet ducts are oriented transversely with respect to the valve holding bore in the valve carrier, wherein the outlet duct opens out, at a distance from the discharge of the filter element, in a portion of the valve holding bore in which the filter element has a closed sleeve portion, in order to achieve a noise reduction through targeted diversion of the flow in the direction of the outlet duct.

Solenoid valve, in particular for slip-controlled motor-vehicle brake systems

A filter subassembly, having a first screen comprising a fabric that has mesh elements, the mesh size of which determines how effectively particles are prevented from penetrating therethrough, wherein a second screen is provided at a distance from the first screen, and the two screens are arranged in series.

Filter subassembly for motor vehicle brake systems

An electromagnetic valve, having a valve closing element which is arranged in a valve housing and which is capable of opening or closing a valve passage in a valve seat, having a magnet armature provided for actuating the valve closing element, and having a substantially cylindrical restoring spring which is braced between the magnet armature and a magnet core. In a parallel arrangement with respect to the restoring spring, a spring ring is arranged between the magnet armature and the magnet core, which spring ring has a smaller number of spring windings in relation to the number of spring windings of the restoring spring.

Electromagnetic valve, in particular for slip-regulated motor vehicle brake systems

A solenoid valve comprises a valve closing body, which can open or close a valve passage formed in a valve seat body which is pressed into a valve housing, and comprising a magnet armature acted upon by a restoring spring, arranged in a through-bore of the valve housing. In addition to a press-fit segment, the valve seat body has a clearance-fit segment along the outer jacket of the valve seat body. The clearance-fit segment has a reduced outside diameter in relation to the press-fit segment. The valve housing also has a tube segment, which deflects radially inward and which has a constant inside diameter that is reduced relative to the outside diameter of the press-fit segment. The tube segment thus deflecting into the clearance-fit segment of the valve seat body because of the elasticity of the tube segment.

Solenoid valve, in particular for slip-regulated motor-vehicle brake systems

The invention relates to an integrated air-supply unit, in particular for air-suspension systems for motor vehicles, said unit comprising an air compressor having an electric motor and an air dryer. The air compressor together with the electric motor, air dryer and a number of pneumatic connections form a functional unit.

Integrated air-supply unit

The invention relates to a method for determining a driving characteristic of an analogized or analog-controlled hydraulic valve of a brake system for motor vehicles, comprising hydraulically operatable wheel brakes, in which a brake pressure (pDBE), which is generated with the aid of an electrically controllable, electric-motor-driven () driven pressure supply device (), is conducted to a wheel brake (-) via an inlet valve (-) and can be conducted in particular via an outlet valve (-) from the wheel brake into a pressure medium container (). In order to operate the brake system, the pressure supply device and the inlet valves, and in particular the outlet valves, can be controlled by an electronic control and regulating unit (), wherein for determining the control characteristic of an analogized or analog-controlled inlet or outlet valve, a brake pressure is generated by the control and regulating unit via the pressure supply device, and the brake pressure (pDBE) is determined by means of a pressure sensor () associated with the pressure supply device, and the determined brake pressure and an associated valve control variable (I, U) are stored as a calibration point of the control characteristic (f, F). The invention also relates to a brake system.

Method for calibrating analog-controlled hydraulic valves and brake system comprising an electronic control and regulating unit in which the method is carried out

The invention relates to an electromagnetic valve, on the magnet armature of which a circumferential annular groove is arranged and in the valve housing of which an axially movable throttle disk is arranged, the throttle disk being fundamentally positioned at the height of the annular groove. The throttle disk throttles the pressure-medium flow along the magnet armature dependent on the actuation of the magnet armature in order to damp the armature impact noise.

Electromagnetic valve

The invention relates to an electromagnetic valve, comprising a valve tappet, which is arranged in a valve housing and which can open or close a valve passage in the valve housing, a magnet armature, which is provided in order to actuate the valve tappet and through which a hole passes for accommodating the valve tappet, and a restoring spring, which acts on the valve tappet and the spring end of which facing away from the magnet armature is supported on a magnet core in the valve housing. For precise valve adjustment, an adjustment sleeve is fixed in the hole of the magnet armature, in which adjustment sleeve the valve tappet is fastened in some sections at the same time.

Electromagnetic valve, in particular for slip-controlled motor vehicle brake systems

A pressure regulating valve having a compression spring fixed in a valve housing for positioning a valve plunger connected to a magnetic armature in the position above a valve seat and not electromagnetically excited, in order to create a connection between at least two pressure medium channels opening into the valve housing, and having a further compression spring disposed coaxially to the first compression spring in the valve housing, having the characteristic that the first compression spring is designed as a control spring forming a stroke and force-specific spring drive by adjusting the spring rates of both compression springs to the force/distance curve of an electromagnet by varying the current in an exciter coil, wherein the further compression spring is designed as a variably adjustable spring acting opposite to the control spring.

Growing community of inventors

Frankfurt-am-Main, Germany

Christian Courth