Continental Teves, Ag and Company Ohg

Alfred Teves Gmbh

Itt Automotive Europe Gmbh

Continental Automotive Technologies Gmbh

Laudenbach Formtechnik Gmbh & Co. Kg

Holger Von Hayn

Wolfgang Ritter

Uwe Bach

Ahmed Sefo

Jens Hoffmann

Martin Gädke

Ralf Harth

Adrian Messner

Manfred Rüffer

Jürgen Schonlau

Thomas Sellinger

Steffen Linkenbach

Hans-Jörg Feigel

Juergen Schonlau

Hans-J&ouml;rg Feigel

Lazar Milisic

Hans-Dieter Reinartz

Helmut Steffes

Erhard Beck

Peter Drott

Stephan Krebs

Jose Gonzalez

Jochen Burgdorf

Peter Volz

Hermann Winner

Dieter Dinkel

Alfred Eckert

Lothar Schiel

Jürgen Böhm

Gunther Buschmann

Hans Wupper

Alfred Birkenbach

Horst Krämer

Joachim Maas

Christof Maron

Jürgen Balz

Jürgen Faller

Jurgen Bauer

Heinrich Kreh

Karlheinz Bill

Ralf Jakobi

Johannes Görlach

Michael Vogt

Milan Klimes

Christian Albrich Von Albrichsfeld

J&uuml;rgen Schonlau

Torsten Queisser

Matthias Schulitz

Martin Semsch

Ulrike Meyer

Christian Vey

Martin Kruse

Falk Petzold

Ralf Sundheim

Wilfried Wagner

Dietmar Gath

Christian Philipp

Holger Kranlich

Martin Haverkamp

Gottfried Dehio

Heinz Zingel

Horst Kramer

Götz Mehner

Juergen Rausch

Michael Haber

Stephan Becker

Dieter Merkel

Niclas Görrissen

Volker Van Aken

Oliver Kugland

Thomas Voigtmann

Horst Kraemer

Volker Ickler

Dieter Kristen

Wolfgang Kroll

Thorsten Lahr

Thomas Meier

Torsten Queiβer

Jan Perlac

Guido Schell

Franz Laudenbach

Detlef Wasel

Bernhard Hammes

Martin GÄDKE

Niclas GÖRRISSEN

Ralph Brandstaedter

Lasar Milisic

José Gonzalez

A spreader unit for a drum brake is provided with a readjustment device which ensures that the clearance remains substantially constant even in the case of wear on the brake linings. The readjustment device is arranged between actuating pistons and changes the spacing of the actuating pistons in at least one readjustment step when an actuating travel of the first and second brake shoe holders has exceeded a travel setpoint value. A thermally actuable blocking device mechanically prevents the execution of the readjustment step by the readjustment device at a temperature above a temperature setpoint value.

Spreader unit for a motor vehicle drum brake

A drum brake having a brake drum, brake shoes, a carrier plate and a load measurement device in the region of an abutment is mountable on a steering knuckle. The abutment has a cylinder in which two pistons are guided, on the outer end faces of which the abutment ends of the brake shoes rest and the inner end faces of which are each supported by a spring on a step in the cylinder. A hollow peg projects from the outside of the cylinder and penetrates an opening in the carrier plate, such that it can be received in a receiving space in the steering knuckle resting on the carrier plate or in a reinforcement element fixed on the steering knuckle.

Drum brake having a load measurement device

The proposal is for an improved expansion device for a drum brake having an integrated readjustment unit having a readjusting screw which can be locked therein by a spring-loaded latching unit which, for a reliable readjustment function with a reduced level of force, provides for the latching unit to allow a defined idle rotation of the readjusting screw, which is defined structurally by a first stop acting in a first direction of revolution and a second stop acting in the opposite direction of revolution.

Expansion device having a readjustment unit for a drum brake

A method for ascertaining an operating variable of a drum brake, the method using forces acting on supporting bearings. The invention further relates to an associated drum brake assembly, an associated analysis unit and an associated storage medium.

Method for ascertaining an operating variable of a drum brake, drum brake assembly, analysis unit, and storage medium

The abutment of a drum brake is formed from a solid material which deforms under load, wherein measurement devices are provided which detect this deformation. The abutment has two limbs, on which the brake shoes are supported. The changing distance between the two brake shoes under load is determined by detecting the distance between extension rods on the limbs by a measurement device comprising magnets and Hall sensors or AMR sensors.

Drum brake

An improved electromechanically drivable spreader unit having an integrated adjustment apparatus for a drum brake, in which the linear motion of brake shoe holders is produced by two ball-ramp devices, wherein a first ball-ramp device includes a first actuation piston arranged for rotation about the axis and a second ball-ramp device includes a second actuation piston arranged for rotation about the axis, and wherein an adjustment apparatus for compensating an actuation travel that increases as a result of wear on the friction linings is arranged in an axially centered position within the housing and substantially between the actuation pistons.

Spreader unit for a drum brake, comprising wear travel adjustment, and the drum brake

A drum brake module for motor vehicles, the drum brake module being driven by an electric motor and having at least one parking brake function, includes an electromechanical cable pull actuator which is fastened on the anchor plate with the aid of an adapter. The adapter is designed as a one-piece, thin walled frame having at least one fastening flange for receiving the cable pull actuator and is held in place on the anchor plate.

Drum brake which can be operated by an electric motor

A braking device for a hydraulic motor vehicle braking system having an electromechanically driven booster stage and a ball screw drive. In order to provide a braking device which is of particularly compact, cost-effective and weight-saving construction and has short pedal strokes, and an easily adjustable pedal characteristic curve, at the same time enabling effective direct action in case of failure of the booster stage and comfortable haptic feedback at the pedal during normal operation, the actuating force from a piston rod is introduced into the spindle, wherein the piston rod can be moved axially to a limited extent relative to the spindle and a spring element is inserted in the flow of force of the actuating force between the piston rod and the spindle, which spring is compressed axially when the actuating force is introduced.

Braking device for a hydraulic motor vehicle braking system having a ball screw drive

Differentials having plate packs for exerting a braking torque onto the output shafts of the gear unit are known. The brake device is intended to be designed such that effective braking can be achieved using it and that it is easy to service. To this end, the invention makes provision for the brake device to be a drum brake having a passive element, exhibiting a cylindrical frictional surface, and brake shoes, the frictional surfaces of which brake shoes can be placed against the cylindrical frictional surface of the passive element. The passive element can be a brake drum or a radial brake disk, the cylindrical edge of which serves as a frictional surface. The passive element is fastened to the differential cage and/or one of the shafts. The brake shoes are held in a pivotable manner on a carrier plate fastened to the outside of the differential housing.

Differential having a brake device

An expanding device for actuating one of the brake shoes of a drum brake includes a body of revolution and transmission bodies actuated by the body of revolution via ball track ramps. A spacer body is located between two partial bodies of the body of revolution, the spacer body guided by an adjustment spring keeping the partial bodies at the respectively reached distance. The spacer body is screwed onto a pin on the first partial body. A readjustment nut ensures that, when the two partial bodies are pushed apart, the spacer body rotates on the pin and moves away from a supporting surface on a partition of the second partial body. Upon renewed actuation of the brakes, the readjustment nut is guided such that the spacer body bears against the second partial body, but takes up a different position on the pin, the position corresponding to the air clearance readjustment.

Electromechanically actuable expanding device for a drum brake

An expansion device for drum brakes, which is floatingly and approximately centrally arranged between two substantially symmetrical brake shoes, the expansion device including at least two gear levers articulated to each other and each supported on a brake shoe, at least one of the gear levers of the expansion lock being coupled to an actuating element of an actuator system such that the brake shoes carry out an even, translationally directed expanding movement, which is converted by a gearing, in the direction of the brake drum. At least one of the gear levers of the spreader lock has a spring element integrated into it that can be elastically reversibly deformed by a brake application force about a defined elasticity &#x394;S of at least 1 mm in a defined manner.

Drum brake module which can be operated by electric motor

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.

Disclosed is a brake actuation unit for actuating a 'brake-by-wire' type brake system for a motor vehicle. The brake system includes a brake booster operable via a brake pedal mounted on a shaft and via an electronic control unit depending on the driver's request, and an element to decouple a force-transmitting connection between the brake pedal and the brake booster in the 'brake-by-wire' operating mode. Also included are a device to detect a deceleration request of the driver, and a pedal travel simulator which interacts with the brake pedal and is formed of a simulator spring, which is arranged in terms of effect between a force-transmitting part connected to the brake pedal and a simulator housing, which is mounted on the shaft by means of two bearings. The simulator housing () includes a cylindrical area () for the accommodation of the two bearings (). This measure renders it possible to reduce the deformations that occur during actuation of the pedal travel simulator to a great extent.

Brake actuation unit for actuating a motor vehicle brake system

Disclosed is a brake actuating unit for actuating a motor vehicle brake system of the 'brake-by-wire' type. The system includes a brake booster which is operable in response to the driver's wish both by a brake pedal and by an electronic control unit. A device is provided to decouple a force-transmitting connection between the brake pedal and the brake booster in the 'brake-by-wire' operating mode. A master brake cylinder connected downstream of the brake booster, a device to detect a deceleration request of the driver, and a pedal travel simulator which interacts with the brake pedal and due to which a resetting force acting on the brake pedal can be simulated in the &#x2018;brake-by-wire&#x2019; operating mode independently of an actuation of the brake booster, and which can be enabled in the &#x2018;brake-by-wire&#x2019; operating mode when the force-transmitting connection between the brake pedal and the brake booster is decoupled and can be disabled outside the &#x2018;brake-by-wire&#x2019; operating mode. The pedal travel simulator () is enabled and disabled by electromechanical means (), electrohydraulic means () or pneumatically operable means (to).

Break actuating unit for actuating a motor vehicle brake system

A partially lined disk brake includes a brake anchor plate, mountable on which are two brake linings, which are arranged at a distance from one another and which between them are capable of receiving a brake disk capable of rotating about an axis of rotation, wherein an application movement serves to bring the two brake linings into engagement with a friction surface of the brake disk, including a brake caliper, which is arranged on the brake anchor plate and which engages at least partially over the brake linings and the brake disk, and which in the direction of movement of the brake linings can be displaced by an actuating device in relation to the brake anchor plate, wherein the actuating device produces the application movement of the brake linings, and having at least one spring element, which moves the brake linings away from one another again after an application movement.

Partially lined disk brake having a spring arrangement for improved clearance and spring arrangement

Growing community of inventors

Bad Vilbel, Germany

Holger Von Hayn