Continental Teves, Ag and Company Ohg

Itt Automotive Europe Gmbh

Itt Manufacturing Enterprises, Inc.

Continental Automotive Technologies Gmbh

Laudenbach Formtechnik Gmbh & Co. Kg

Jürgen Balz

Thomas Winkler

Karlheinz Bill

Jürgen Bauer

Wolfgang Ritter

Georg Halasy-Wimmer

Rolf Weiler

Peter Drott

Holger Von Hayn

Ralf Harth

Jürgen Schonlau

Jurgen Bauer

Stefan Johannes Schmitt

Matthias Würz

Ralph Petri

Volker Knop

Horst Kramer

Heinz Zingel

Peter Volz

Stefan A Drumm

Lothar Schiel

Uwe Bach

Jürgen Böhm

Andreas Heise

Christof Maron

Paul Linhoff

Ahmed Sefo

Jens Hoffmann

Martin Gädke

Heinz-Anton Schneider

Johannes Görlach

Lothar Kunze

Ralf Hartmann

Jürgen Völkel

Ralf Sundheim

Bernhard Schmittner

Luigi Tessitore

Martin Semsch

Andreas Pohlmann

Norbert Leidecker

Stefan Heinz

Peter Schack

Marcus Schumann

Thomas Bauer

Jörn Schriefer

Anja Klimt

Manfred Reuter

Werner Denhard

Christian Vey

Dirk Koch

Marco Froschauer

Pejman Bijanzadeh

Philipp Merkel

Michael Weidenweber

Götz Mehner

Vladimir Dusil

Stefan Pfeiffer

Sebastian Salzmann

Ralf Scheib

Giulio Brezza

Hans Olms

Niclas Görrissen

Andreas Kaiser

Joachim Scholer

Dieter Füller

Thomas Böhme

Holger Von Havn

Peter Scherer

Patrick Walter

Franz Laudenbach

Torsten Hintz

Sebastian Satzmann

Heniz-Anton Schneider

Christian Breiten

Dirk Eser

Lionel Pöffel

Alessandro Giusto

Luca Boscolo

Thomas Merker

Samir Attayebi

Karsten Schille

Jochen Thiesing

Thomas BÖHME

Ralph Brandstaedter

Niclas GÖRRISSEN

Martin Kruse

Martin GÄDKE

Sébastien Pla

Enrico Rück

Methods and corresponding control devices for releasing an electric actuator in a reliable manner, such as an electric parking brake in particular, in a motor vehicle brake system. The aim of the invention is to provide an improved function and architecture which helps prevent the disadvantages of open-loop control systems when using a rationalized sensor system, thereby obviating closed-loop control systems. This is achieved by a release method and a corresponding electronic control unit which obtains an especially modulated change in the power requirement during the release process upon impacting the quasi-elastic release end stop of the electric actuating unit such that the change is fed back, the change being detected in order to be used as information for a power interruption or a termination of the power supply to the electric actuating unit.

Methods and devices for releasing an electric actuator in a reliable manner using a quasi-elastic release end stop

A novel, particularly rationally designed, modular parking brake actuator for an electric drum brake system. An axle Afrom the motor, including a screw gear pinion coupled in a rotationally fixed manner, and an axle of the spindle arrangement, including a screw gear which is coupled in a rotationally fixed manner to the drive nut, define under a deflection of 90&#xb0; a single wheel gearbox stage of the parking brake actuator.

Electric drum brake system having a rationalized electric parking brake actuator

A double cup-shaped piston for a disc brake including an electromechanical parking brake device. An aspect of the invention permits an improved compromise between easier operability, rationalized component logistics in piston production, reduced hydraulic volume uptake in cooperation with the wheel brake periphery, and enhanced fatigue strength under maximum collective stress, in particular for heavy-duty applications of a disc brake with an electromechanical parking brake device. The problem is solved by the presence of a piston wall, which is provided, on the one hand, to sit with a free edge on a rear plate of a friction lining, and wherein the piston, on the other hand, includes an integral dome which forms an open receptacle for an actuator arranged diametrically to the edge of the piston.

Double cup-shaped piston for a disc brake

The invention relates to a piston for a brake caliper, which can be actuated in combined fashion, of a disk brake, which pistonis produced by shaping processes from a metallic material, in particular from a planar metal sheet, and which pistonis formed as a pot which is open on one side and which has a longitudinal axis, a wall and a piston crown, and which piston has a twist prevention facility for a drive nut. The invention is based on the problem of providing a robust piston construction which is better capable of tolerating erroneous repair work. To solve the problem, it is proposed that the twist prevention facility has, between the piston and drive nut, at least one reinforcement for protecting against plastic deformation of at least one driver.

Piston for a brake caliper of a disk brake

A hydraulic vehicle brake with a parking brake device, in particular for motor vehicles, includes a brake housing in which a hydraulic service pressure chamber is delimited by a brake piston, wherein hydraulic pressure fluid can be applied to the hydraulic service pressure chamber for carrying out service brake operations so that the brake piston is actuatable along a longitudinal piston axis in order to achieve a braking effect. The parking brake device acts on the brake piston with an actuating device, which actuates a rolling-element ramp-type gear with an electromechanical actuator. In order to achieve a higher rate of overall efficiency as well as a reduced electric energy consumption, a two-step gear is interposed between the electromechanical actuator () and the actuating device (), wherein the first gear step () on the inlet side is connected to an output shaft () of the electromechanical actuator () and the second gear step () on the outlet side is connected to the rolling-element ramp-type gear ().

Hydraulic vehicle brake with integrated electromechanically operable parking brake

A combined vehicle brake having a hydraulically actuable driving brake and an electromechanically actuable parking brake device. In a brake housing, a hydraulic operating pressure space is bounded by a brake piston chargeable with hydraulic pressure medium to carry out normal braking. The brake piston is actuable along a longitudinal axis of the piston, and the parking brake device acts on the brake piston by a gearing converting the rotational movement of an electromechanical actuator into a translation movement and bringing about an actuation of the brake piston in order to carry out parking brake operations and keeping the brake piston in the actuated position. The gearing has a threaded spindle and a threaded nut which are in contact with each other via a plurality of rolling bodies. The frictional moment transmitted by the further axial bearing is higher than the returning torque of the threaded spindle.

Combined vehicle brake

A drum brake module for motor vehicles operable by electric motor and performs at least one parking brake function, having an electromechanical actuator mounted on one side of the armature plate and a rotational-translational movement converter converting a rotational drive rotational movement into a translational activation movement of brake shoes arranged on a side of the armature plate facing away from the actuator in a brake drum, and including at least one supporting device between the brake shoes such that the latter can carry out an activation movement in the direction of the brake drum. A drive nut is supported by the rotational-translational movement converter in an axially secure and rotatable fashion on the armature plate to assist the braking force. The drive nut drives a spindle arrangement mounted in a rotationally fixed and axially displaceable fashion and engages with an activation cable on at least one brake shoe.

Drum brake module which can be operated by electric motor

A combined vehicle brake including a hydraulically actuated service brake and an electromechanically actuated parking brake device, a hydraulic operating pressure chamber in a brake housing being defined by a brake piston, which for performing service braking actions can be acted upon by hydraulic pressure fluid, so that the brake piston can be actuated along a piston longitudinal axis in order to produce a braking action, and the parking brake device acting on the brake piston by way of a transmission that translates the rotary motion of an electromechanical actuator into a translational motion and actuates the brake piston to perform parking brake actions and to keep it in the actuated position. Also disclosed is a transmission for translating a rotary motion into a translational motion by way of a screw spindle and a spindle nut, which are in contact with one another by way of multiple rolling elements.

Combined vehicle brake with electromechanically operable parking brake and gear for converting a rotary movement into a translational movement

The invention relates to a motor vehicle brake system having a hydraulically actuatable service brake system and an electromechanically actuatable brake system, including an operating element HMI, in particular for activating a parking brake function, an electronic control device (EPB-ECU) for activating an electromechanical actuator of the electromechanically actuatable brake system, and an electrohydraulic control unit (HECU) associated with a service brake and serving to control or regulate hydraulically implemented service brake functions, driving stability functions and/or braking assistance functions. It is an aim of the invention to contribute to reducing the stress on parts or components of the brake system. It is proposed that an electronically controlled hydraulic pressure conditioning process is carried out in integrated brake calipers after hydraulic actuation of the brake, it being further provided that the electromechanical brake system generates additional application forces only after the hydraulic pressure conditioning process.

Motor vehicle braking system having a hydraulically actuated service braking system and an electromechanically actuated braking system

A spot-type disc brake with a housing comprising a housing bridge, with at least one housing leg having an actuating assembly comprising an actuator unit and a component movable along an axis of movement. At least one brake shoe is arranged at the component and is slidably supported on at least one support. The brake shoe is braced with the support against an abutment surface by means of a hold-down spring. The abutment surface of the hold-down spring is arranged non-parallel to the axis of movement. Thereby, not only a radial preloading force Fis produced, but also a force component Fnormal thereto, which assists the retracting movement of the brake shoe from the brake disc, thus improving the clearance behavior.

Partially lined disk brake

A brake caliper of a disc brake includes a housing with a bore, in which a piston is arranged in an axially displaceable fashion, a shaft for actuation, which is mounted in a rotatable and axially displaceable fashion, two ramp elements being rotatable in relation to each other, a readjusting device with a spindle, and an axial bearing that is active between the shaft and the spindle. A generic brake caliper of a disc brake includes components having a construction to withstand stress so that they are exposed to even, low stress without detrimental tension peaks. A toothing is provided on a circumference of the spindle, and a form-fit accommodation means for the toothing is provided. The accommodation means are unrotatably connected to the housing and secure the spindle against twisting. A calotte arrangement is also provided as an axial bearing, which comprises a calotte shell with a concavely curved surface and a calotte pivot with a convexly curved surface.

Caliper for a disk brake

A hydraulic vehicle brake equipped with a parking brake device, in particular for motor vehicles, including a brake housing in which a hydraulic service pressure chamber is delimited by a brake piston, wherein the parking brake device acts on the brake piston and, in the applied condition, can be locked by a locking device, and an energy accumulator cooperating with the brake piston is equipped with at least one integrated spring element. In order to realize a simple and low-cost parking brake function that complies with legal requirements, according to the invention, the parking brake device is operable by a pressure that is introduced into the service pressure chamber and enables charging the energy accumulator.

Hydraulic vehicle brake

Electromechanical disc brake

Process and device for regulating a power brake variable boosting factor

Electromechanically actuated disc brake system

Growing community of inventors

Hünstetten-Oberlibbach, Germany

Jürgen Balz