Zf Cv Systems Europe Bv

Wabco Gmbh

Zf Cv Systems Global Gmbh

Volkswagen Ag

Zf Cv Systems Hannover Gmbh

Man Truck & Bus Se.

Robert Otremba

Julian Van Thiel

Arne Michaelsen

Thomas Dieckmann

Bernd-Joachim Kiel

Oliver Wulf

Uwe Bensch

Detlef Schmidt

Peter Beier

Otmar Struwe

Wolfgang Strache

Karl-Heinz Riediger-Janisch

Ralph-Carsten Lülfing

Stefan Rehling

Tobias Munko

Bastian Witte

Hartmut Schappler

Gerd Roters

Rafal Bialon

Thomas Müller

Ulrich Couppee

Wolfgang Lichtenberg

Dirk Müntefering

Thilo Klostermann

Dieter Steinfeld

Leszek Toma

Marc Gerecke

Michael Knosmann

Pawel Swiatek

Lukasz Drelich

Krzysztof Adamski

Bernd Oldemeyer

Thomas Mueller

Petra Elze

Pawel Lesik

Ingo Fuhrmann

Malte Rothhämel

Christian Oeser

Lars Wülbeck

Alexander Wassmann

Julian Waszkewitz

Lars WÜLBECK

Adrian Grzeskowiak

Andreas Peters

A trailer brake control module () for a towing vehicle () facilitating braking of a towed vehicle or trailer () includes a pressure supply port (P), a trailer control pressure port (P), a primary control port (P) for receiving either directly and/or indirectly a control brake pressure for operating the trailer brake control module (). The primary control port (P) receives the control brake pressure from a pneumatically operated pressure medium, a pneumatic control pressure line () provides alternative control brake pressure for operating the trailer brake control module (), wherein the pneumatic control pressure line () receives the alternative control brake pressure from an electronically operated pressure medium, and a relay valve () is activated using either the control brake pressure received at the primary control port (P), or the alternative control brake pressure from the pneumatic control pressure line ().

Trailer brake control module

A foot brake module of an electropneumatic brake system of a motor vehicle has at least two pneumatic brake circuits. The foot brake module is operated by a brake pedal and has a pneumatic section with a pneumatic brake control valve and an electrical section with an electrical switch and at least one electronic travel sensor. The electrical switch is activated in a contactless manner. The foot brake module may have two travel sensors that each have a separate power supply and are connected to different electronic control devices.

Foot brake module of an electropneumatic brake system of a motor vehicle

The disclosure relates to a vehicle system for a vehicle, in particular a commercial vehicle, that includes an electronically controllable pneumatic braking system, and an electronically controllable steering device. The electronically controllable pneumatic braking system has a redundant control unit, which controls the brake circuits in the event of a failure of an electronic stability control of the braking system during travel. In the event of the failure of the electronic stability control during travel, the redundant control unit performs axle-wise control of the front axle with a front axle redundancy brake pressure and/or of the rear axle with a rear axle redundancy brake pressure and the electronically controllable steering device carries out laterally stabilizing steering interventions in order to keep the vehicle in a tolerance corridor of a predefined target trajectory of the vehicle. The disclosure also relates to a vehicle and a method.

Vehicle system having an esc-fault-tolerant braking system

The disclosure relates to a method for controlling an electronically controllable pneumatic braking system for a towing vehicle. The towing vehicle has front axle brake actuators and rear axle brake actuators; a primary system with a primary control unit for controlling the front and rear axle brake actuators; a secondary system with a secondary control unit for controlling the front and rear axle brake actuators in the event that a fault is detected in the primary system and the braking system is controlled by the secondary system; a trailer control valve for providing a trailer brake pressure at a trailer brake pressure port; and a PLC connector for receiving PLC signals from a trailer. The method includes: providing PLC signals received at the PLC connection both in the primary system and in the secondary system; and processing PLC signals in both the primary system and the secondary system.

Redundant PLC signals evaluation

A relay valve module for an electronically controllable pneumatic brake system for actuating wheel brakes of a utility vehicle includes: a reservoir connection for receiving a reservoir pressure; a brake control pressure connection for receiving a brake control pressure; at least one first service brake connection for outputting a service brake pressure; a relay valve with a relay valve reservoir connection, which is connected to the reservoir connection, a relay valve working connection, which is connected to the first service brake connection, a relay valve ventilation connection, and a relay valve control connection; an electropneumatic pilot control unit, which is connected to the reservoir connection, the electropneumatic pilot control unit providing a pilot control pressure; and a shuttle valve with a first shuttle valve inlet, a second shuttle valve inlet, and a shuttle valve outlet. The first shuttle valve inlet is connected to the brake control pressure connection.

Relay valve module for use as an axle modulator and trailer control module

An electro-pneumatic parking brake arrangement includes a shut-off valve and a parking brake module. The parking brake module includes a reservoir connection configured to connect to a compressed air reservoir, a first spring-loaded accumulator connection configured to connect to the shut-off valve, an electro-pneumatic valve unit having at least one electro-pneumatic valve configured to output a spring-loaded brake pressure at the first spring-loaded accumulator connection, and an electronic control unit configured to receive parking brake signals from an electronic parking brake switch and/or a higher-order control unit. The shut-off valve comprises a second spring accumulator connection configured to connect the spring-loaded brakes of the further axle and to shut off the second spring accumulator connection depending on a shut-off signal provided by the parking brake module.

Electropneumatic parking brake arrangement having a shut-off valve and method for controlling an electronically controlled pneumatic brake system

A control valve () for applying a spring-loaded brake pressure (p) to spring-loaded parts of a rear-axle wheel brake is provided. The control valve () is activatable pneumatically via a second control input () with a parking-brake control pressure (p). The parking-brake control pressure (p) can act in such a manner on a control mechanism () arranged in a valve housing () of the control valve () that a spring-loaded brake pressure (p) arises at a control output () of the control valve () as a function of the parking-brake control pressure (p) for bringing about a parking-brake braking specification with the spring-loaded parts of the rear-axle wheel brakes. The control valve () has a first control connection () connectable to an adjustable first control chamber (), which is operatively connected to the control mechanism ().

Control valve, electronically controllable braking system, and method for controlling the electronically controllable braking system

An axle valve module of a compressed air brake system includes a relay valve with a control pressure input connected to a control pressure line which can be connected via a changeover valve alternately to a brake pressure line conducting an introduced brake pressure or to a reservoir pressure line conducting a reservoir pressure. ABS inlet and outlet valves are each formed as a pressure-controlled diaphragm valve with assigned pilot valve, wherein the pilot valves are configured as cyclically controllable 3/2-way magnetic switching valves, A shut-off valve is arranged in the control pressure line of the relay valve, between the changeover valve and the control pressure input of the relay valve or the branch point of a control pressure line of the ABS valves, via which shut-off valve the control pressure present at the control pressure input of the relay valve can be locked in as required.

Axle valve module and relay valve module of a compressed-air brake system

A method for the assisted, partially automated, highly automated, fully automated or driverless driving of a motorized transportation vehicle including at least one control unit for planning the navigation and trajectory of an assisted, partially automated, highly automated, fully automated or driverless journey of the motorized transportation vehicle and multiple subsystems, wherein the subsystems implement transportation vehicle movement dynamics requirements of the control unit or supply environmental data, wherein at least one subsystem is assigned a monitoring function by which the functionality of the subsystem is determined, wherein the monitoring function transmits a currently possible performance capability to the control unit which adapts the planning of the navigation and trajectory in accordance with the transmitted performance capability so that, despite a reduced performance capability, the assisted, partially automated, highly automated, fully automated or driverless journey can be continued. Also disclosed is such a device.

Method and device for the assisted, partially automated, highly automated, fully automated or driverless driving of a motor vehicle

An electronically controllable braking system for a commercial vehicle is provided, including a service brake system having a front axle brake circuit with a front axle modulator, a rear axle brake circuit, and a central control module. The central control module is configured to implement a braking specification via the front axle brake circuit and the rear axle brake circuit. A parking brake module that is configured, in the event of a defect in the central control module, to process the braking requirement and to output a rear axle redundancy brake pressure to spring-brake parts for the redundant implementation of the braking specification. It is further provided that the front axle modulator is configured to process the braking specification and to output a front axle redundancy brake pressure to the front axle brakes for the further redundant implementation of the braking specification.

Electronically controllable braking system having two levels of redundancy

An electronically controllable pneumatic brake system. The brake system includes at least two brake circuits, wherein a first of the at least two brake circuits is allocated an electrically and pneumatically controllable control valve and a second of the at least two brake circuits is allocated an electrically controllable parking brake valve in order to predetermine braking pressures so as to actuate wheel brakes of the respective brake circuit. The brake system further includes a first control unit configured to electrically actuate the electrically and pneumatically controllable control valve in dependence upon a vehicle desired deceleration and a second control unit configured to electrically control the parking brake valve in dependence upon the vehicle desired deceleration that is requested in an automated manner. In addition, the brake system includes at least one bypass valve to which a control valve is allocated.

Electronically controllable pneumatic brake system in a utility vehicle and method for electronically controlling a pneumatic brake system

An electronically controllable pneumatic brake system includes a brake circuit, wherein a control valve is associated with the brake circuit for the purpose of adjusting braking pressures at service brakes independently of each other, wherein the control valve comprises an electronic control input for receiving an electrical control signal and a pneumatic control input for receiving a control pressure. The pneumatic brake system additionally includes a first control unit for outputting the electronic control signal depending on a target vehicle deceleration for the electrical actuation of the control valve, a first brake valve configured to specify a first brake valve control pressure, and a second brake valve configured to output a second brake valve control pressure. The second brake valve is disposed such that the first brake valve control pressure and/or the second brake valve control pressure is output as the control pressure to the control valve.

Electronically controllable pneumatic braking system in a commercial vehicle and method for electronically controlling a pneumatic braking system

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

Growing community of inventors

Ronnenberg, Germany

Robert Otremba