Wabco Gmbh

Zf Cv Systems Europe Bv

Wabco Europe Bvba

Wabco Gmbh & Co Ohg

Hartmut Schappler

Andreas Teichmann

Peter Homann

Ingo Torhoff

Lars Didwiszus

Dieter Frank

Bernd-Joachim Kiel

Uwe Bensch

Peter Beier

Robert Otremba

Armin Sieker

Stefan Rehling

Karl-Heinz Riediger-Janisch

Ralph-Carsten Lülfing

Thomas Müller

Wilfried Menze

Karsten Runge

Wolfgang Lichtenberg

Alexander Wendlandt

Juan Rovira-Rifaterra

Hans-Klaus Wolff

Andreas Kranz

Dieter Steinfeld

Jens Willms

Jens Gröger

Dirk Meier

Dirk Bormann

Gerdt Schreiber

Marek Swoboda

Christian Oeser

Axel Peuser

Andreas Malaske

Ingo Fuhrmann

Petra Elze

Julian Waszkewitz

A device designed for controlling and regulating an electro-pneumatic parking brake circuit includes a manual controller configured to actuate a parking brake via the electro-pneumatic parking brake circuit, the manual controller having a first circuit arrangement and a second circuit arrangement, the first circuit arrangement being a digital, bidirectional circuit arrangement and the second circuit arrangement being an analog circuit arrangement. The device further includes control electronics electrically connected to the manual controller. The first circuit arrangement is connected to the control electronics via a first connection cable and the second circuit arrangement is connected to the control electronics via a second connection cable. The first connection cable is a digital data transmission channel configured to enable a digital data transmission between the digital circuit arrangement and the control electronics. The second connection cable is an analog data transmission channel configured to enable an analog data transmission.

Device for open-loop and closed-loop control of an electro-pneumatic parking brake circuit, electro-pneumatic handbrake system, vehicle and method for open-loop and closed-loop control of a electro-pneumatic parking brake circuit

A relay valve () for a pneumatic valve unit (), for example for a braking system of a utility vehicle, has a first assembly component () and a second assembly component (). A hollow cylindrical guide portion () of a piston () of the relay valve () is received, in an axially guided manner, in the first assembly component (). The second assembly component () includes additional valve components and the venting region of the relay valve (). At least the first assembly component () and the second assembly component (), when assembled, form a preassembly unit () first assembly component () and are joined by a bayonet connection (). The preassembly unit () is inserted into a housing () of the valve unit (), The interior of the housing is delimited by a cup-shaped inner wall (), and the preassembled unit is fastened therein.

Relay valve for a pneumatic valve unit

An electropneumatic pilot unit for controlling a pneumatic consumer is provided herein. The pilot unit comprises at least two electromagnetic pilot valves. Each of the electromagnetic pilot valves comprises a coil for producing a magnetic flux along a valve axis, an armature which can be moved in the axial direction of the valve axis, a valve seat which can be closed and opened by the armature, and a pneumatic inlet port and a pneumatic outlet port. At least two of the pilot valves lie next to each other with parallel valve axes. Each pilot valve has a port which protrudes towards a common underside for connection to a pilot chamber of the consumer controlled by the pilot valves.

Pilot unit, actuator system and method for producing said system

A sensor unit () for a motor vehicle or trailer is disclosed. The sensor unit comprises a sensor measuring arrangement () for sensing at least one physical variable, a sensor housing () partly or fully enclosing the sensor measuring arrangement () and at least two connecting lines (). The sensor unit () with the sensor housing () is electrically connectable to a conductive part of the motor vehicle or trailer and the sensor measuring arrangement () is connectable to an analyzer () via the connecting lines (). Related methods, a sensing and analysis device, and motor vehicles or trailers including the same are also disclosed.

Sensor unit, sensing and analysis device with such a sensor unit and motor vehicle or trailer therewith and method for protecting an analyzer

A valve arrangement for brake control of a vehicle braking system which is operated using pressure medium includes a relay valve arranged in a housing, and a solenoid valve configured for controlling the relay valve. The relay valve has an axially displaceable relay valve piston with a first annular sealing seat configured to be acted on with a control pressure which is directed into a control pressure chamber and which can be adjusted by the solenoid valve, having an axially displaceable plate valve having a radial sealing face, and having an insert secured to the housing which separates an operating chamber from a pressure chamber and which has a second annular sealing seat which is arranged coaxially relative to the first annular sealing seat of the relay valve piston. The first and second annular sealing seats cooperate simultaneously or alternately with the radial sealing face of the plate valve.

Valve arrangement

A brake pressure modulator () of an electronic braking system of a utility vehicle includes pressure control circuits () respectively associated with a braking circuit of a vehicle axle, each pressure control circuit () comprises a compressed air supply system (), at least one redundancy control pressure path (), at least one ventilation path () and a common electronic control unit (). Said pressure control circuits () can be controlled independently from each other by the electronic control unit (). Each pressure control circuit () has an independent ventilation path () and at least one of the pressure control circuits () has an independent redundancy control pressure path () and at least one other of the pressure control circuits () comprises a device () for forced venting in the event of a failure by means of the associated ventilation path ().

Brake pressure modulator of an electronic braking system of a utility vehicle

A solenoid-valve unit for an electropneumatic controller, especially a pilot-control unit of an electropneumatic pressure modulator of a vehicle, includes a solenoid-valve unit having a valve-housing bottom with compressed-air bores, and solenoid valves having solenoids and displaceable magnet armatures. The solenoids are disposed outside of the valve-housing bottom. At least one pressure sensor for measuring pneumatic pressure in a compressed-air bore of the valve-housing bottom is placed in or on the valve-housing bottom. Electric leads to the solenoids and to the pressure sensor are routed to a common electrical interface.

Solenoid-valve unit for an electropneumatic controller

A pre-engagement unit for a braking pressure modulator for a pressure regulating circuit includes a first pneumatic inlet, a second pneumatic inlet, a first pneumatic output terminal, and a second pneumatic output terminal. The unit includes an electrically actuated valve system having a plurality of solenoid valves and a plurality of electrical terminals connected to output terminals of an electronic control unit. An electric braking command signal transmitter delivers a driver initiated electric brake value setting to an input of the electronic control unit. Under normal conditions, a supply pressure and a redundancy pressure are delivered at the first pneumatic output terminal to be converted by an air quantity augmenting relay valve to a braking pressure. In case of failure of the electronic braking system, the redundancy pressure is delivered at the first pneumatic output terminal to be converted by the air quantity augmenting relay valve to the braking pressure.

Braking pressure modulator for an electronic braking system

Growing community of inventors

Hannover, Germany

Hartmut Schappler