Lucas Automotive Gmbh

Hl Mando Corporation

Mando Corporation

Meritor Heavy Vehicle Braking Systems (UK) Limited

Kelsey-Hayes Company

Meritor Technology, Inc.

Ralf Leiter

Gregor Poertzgen

Ralf Kinder

Martin Pors Taylor

Paul Roberts

Ralf Erben

Jonathan Leslie Christopher Jackson

Lorenz Maack

Franz-Josef Endres

Reza Shokoufandeh

Brendan Joseph Wilde

Gerhard Klapper

Andreas Söns

Axel Kuenkel

Kristijan Tarandek

Leo Gilles

Josko Kurbasa

Gregor Godlewsky

Michael Keller

Hans Joerg Feigel

Thomas Maur

Marco Bassi

Brian Lewis Boyle

Roberto Gianone

Stefan Grieser-Schmitz

Hee Chul Jung

Marcus Janson

Fabio Santinato

Marco Fratelli

Christian Dilla

Chiara Cesari

David Kwierant

Manfred Meyer

Karl-Heinz Schaust

Jonathan Jackson

Axel Kunkel

John Fieldhouse

Boris Köth

Gareth Shaw

Paul Bell

Thomas Straub

Bernd Schönwald

Hyo Jin Jeong

Rachid Bouzid

Clemente Magnago

Jon Honig

Karthik Kayyar

Juchirl Park

Cesare Bonfa

Refaat Malhi

Gareth Knox

Brendan Wilde

Richard Thompson

Refaat El Malki

The invention relates to a brake system including at least one brake with an electric brake actuator, at least one electronic control unit for controlling the at least one electric brake, and two different power supply units connected to the at least one electronic control unit and configured for supplying energy to the at least one electric brake actuator. The at least one electronic control unit comprises a first brake actuation system for activating the electric brake actuator and a redundant brake actuation system for activating the electric brake actuator in case of a failure of the first brake actuation system. The invention also relates to a method for using the brake system.

Brake system

The invention relates to a brake system for a vehicle, comprising at least one brake (-), at least one sensor (-) for measuring a temperature of the at least one brake (-), and a control unit (). The control unit () is configured for receiving an actuating signal demanding a brake actuation, and for receiving temperature data from the at least one sensor (-), indicating the temperature measured by the at least one sensor (-). The control unit () is further configured for effecting a brake torque of the at least one brake (-) based on the actuating signal. The control unit () is furthermore configured for controlling the brake torque of the at least one brake (-) based on the temperature data. The invention also relates to a method for controlling a brake system of a vehicle.

Brake system and method for controlling a brake system

A electric brake system includes a main device that provides a first hydraulic pressure to a plurality of wheel cylinders respectively installed on a plurality of wheels, based on a position of a brake pedal; and art auxiliary device that provides a second hydraulic pressure to first and second wheel cylinders respectively installed on first and second wheels among the plurality of wheels based on the position of the brake pedal in a state in which the main device does not generate the first hydraulic pressure. The auxiliary device receives power from a power network different from that of the main device, and the auxiliary device controls at least one of first and second parking brakes respectively installed on third and fourth wheels among the plurality of wheels. In such an electric brake system, when the main device fails or is out of control, the auxiliary device may auxiliary generate the hydraulic pressure required for braking and may generate braking force using the parking brake.

Electronic brake system and control method therefor

The present invention relates to a brake or steering system including an actuator (), and an electromotor arrangement () comprising a rotatably mounted shaft () for driving the actuator (), a first pair of brushes (), a second pair of brushes (), a commutator assembly () arranged on the shaft, the commutator assembly being in contact with the first pair of brushes () and the second pair of brushes (), a coil assembly () electrically connected to the commutator () assembly, and at least one permanent magnet cooperating with the coil assembly () to provide a rotational movement of the shaft () when the coil assembly () is energized.

Brake or steering system having redundant components

A valve assembly including: a valve body comprising a valve chamber, a first fluid port, a second fluid port, and a third fluid port, wherein the first fluid port, the second fluid port and the third fluid port are in fluid communication with the valve chamber; a first plunger movably disposed within the valve chamber, wherein when the first plunger is in the open position, the first fluid port is in fluid communication with the second fluid port, and wherein when the first plunger is in the closed position the first fluid port is fluidly isolated from the second fluid port; and a second plunger movably disposed within the valve chamber, wherein when the second plunger is in the open position the second fluid port () is in fluid communication with the third fluid port, and wherein when the second plunger is in the closed position, the second fluid port is fluidly isolated from the third fluid port.

Valve assembly and anti-lock braking system including the same

The present disclosure relates to a piston pump assembly comprising a piston with a variable stroke and to a hydraulic braking system comprising the same. The piston pump assembly comprises at least: a rotatable drive shaft defining an axis of rotation of the rotatable drive shaft; a cam disposed on the drive shaft; and the piston biased toward the cam and configured to reciprocate along a piston axis for displacing a hydraulic fluid. The cam is movable relative to the piston axis and is selectively placed in one of a first position at a first distance from the piston axis and a second position at a second distance from the piston axis; and wherein the cam comprises at least two portions each of which has, at a given position of the cam relative to the piston axis, a different non-circular cross section in a plane perpendicular to the axis of rotation and/or a different eccentricity with respect to the axis of rotation, the at least two portions of the cam comprising at least a first cam portion having a first non-circular cross section and/or a first eccentricity, and a second cam portion having a second non-circular cross section and/or a second eccentricity.

Piston pump assembly comprising piston with variable stroke and vehicle braking system comprising the same

The invention relates to a brake system for a vehicle, comprising a cylinder (), a piston () having a closed end () and an open end () and being movably arranged within the cylinder (), and a further part protruding through the open end () into a cavity of the piston (), the further part comprising a shaft () arranged along a longitudinal axis () of the cylinder () and a head having a larger diameter than the shaft (), wherein a resetter for the piston () is arranged within the cavity of the piston () to allow for a transmission of forces between the head of the further part and the resetter in a direction of the longitudinal axis (). At least a part of the resetter is elastic, wherein the resetter is in contact with the inner surface of the piston () so that the resetter can support a reverse movement of the piston () when a braking pressure is released.

Brake system for a vehicle

A method and a system for controlling a parking brake of a motor vehicle are described. According to the described method, an ignition signal and an actuation state of the parking brake are detected. An application force of the parking brake is then set to a first value in dependence upon the actuation state of the parking brake if the ignition signal is present. If the parking brake was previously in an applied actuation state, the application force is reduced from a second value to the first value. If the parking brake was previously in a released actuation state, the application force is increased to the first value. The first value is sufficient to hold the motor vehicle in its current position.

Method and system for controlling a motor vehicle parking brake during a stop

It is proposed, for an electronic system for operating an electromechanical parking brake device of a vehicle with an input unit for detecting a driver command which is evaluated by a control unit which activates at least one actuating unit for actuating at least one brake, that the control unit consist of at least two control components, of which a first control component is associated with the input unit and at least one second control component is associated with the at least one actuating unit.

Electromechanical parking brake device and electronic system for operating same

A braking apparatus for a vehicle, in particular a heavy goods vehicle, includes a drive axle having a transmission gear, such as a differential, around which an amount of oil for lubrication is variable. The brake apparatus further includes at least one friction brake and at least one retarder that is capable of operating to slow the vehicle through the transmission gear. The braking apparatus comprises a brake operating device for operating the at least one friction brake and the least one retarder, and a determining feature to determine an oil level around the transmission gear. The brake operating device, on operation by a user, is arranged to apply the retarder when the oil level around the transmission gear is above a threshold level, and, if the oil level is below the threshold level, the brake operating device is arranged to initiate an increase in the oil level around the transmission gear.

Braking apparatus for a vehicle and vehicle comprising said braking apparatus

A system configured to estimate a change in temperature of a brake component of a vehicle brake during a braking operation. The system includes a weight estimation module for estimating a weight of a vehicle to which a brake is fitted, a volume estimation module for estimating a volume of a brake component, a temperature model module for calculating a change in temperature during brake application based on a relationship between the weight of the vehicle as estimated by the weight estimation module, the volume of the brake component as estimated by the volume estimation module, the deceleration of the vehicle, and further constants of the vehicle and/or the brake.

Brake system and method

A hydraulic vehicle brake having an optional locking device is described. The locking device is disposed inside a hydraulic chamber that is delimited by a brake piston. For reducing the hydraulic fluid intake, an incompressible filling body is provided inside the hydraulic chamber.

Hydraulic vehicle brake

An electromechanical parking brake system for a heavy vehicle braked by air-actuated service brakes includes an EPB-ECU and a first electromechanical parking brake actuator controlled by the EPB-ECU. The electromechanical parking brake system further includes a redundant sub-system for applying a second parking brake in an event of a failure in the EPB-ECU or the first electromechanical parking brake actuator.

A system for adjusting a brake force to be applied by a brake includes a module for estimating a weight of a vehicle to which a brake is fitted, a module for determining an angle of incline upon which the vehicle is positioned, and a control unit for calculating a sufficient brake force to be applied according to predetermined criteria based upon the estimated weight and the incline to maintain the vehicle in a stationary state. The control unit is configured to signal the brake to apply the calculated amount of force.

An improved structure for an electric actuator unit for use in a brake assembly. According to an embodiment, a drum brake assembly comprises a mounting flange having an abutment; a backing plate secured to the mounting flange, the backing plate having a pair of brake shoes supported thereon; and an electric actuator unit for actuating the drum brake assembly to selectively move the brake shoes between a braking and a non-braking position, the electric actuator unit including a motor, a gear-set operatively coupled to be driven by the motor, a spindle nut operatively coupled to be rotationally driven by the gear-set, a pull rod operatively coupled to be translatorily driven by the spindle nut, and a brake shoe actuation link assembly operatively coupled to be actuated by the pull rod to thereby move the brake shoes between the braking and non-braking positions, the pull rod being operatively coupled to the brake shoe actuation link assembly by a link, the link having a first end pivotally connected to the pull rod and a second end pivotally connected to a second member of the brake shoe actuation link assembly.

Electric actuator unit for a vehicle brake assembly

Growing community of inventors

Mendig, Germany

Ralf Leiter