Continental Teves, Ag and Company Ohg

Continental Automotive Technologies Gmbh

Continental Teves Ag &co. Ohg

Christof Maron

Marcus Schumann

Ralf Scheib

Giulio Brezza

Hermann Winner

Holger Von Hayn

Uwe Bach

Jürgen Böhm

Georg Roll

Paul Linhoff

Heinz-Anton Schneider

Faouzi Attallah

Jürgen Völkel

Jens Hoffmann

Hans-Jörg Wiehoff

Jürgen Balz

Thomas Winkler

Andreas Kohl

Luigi Tessitore

Jürgen Bauer

Thomas Bauer

Jürgen Woywod

Rainer Klusemann

Christian Vey

Martin Kruse

Peter Leska

Eduard Wiens

Oleg Bauer

Klaus Berger

Christian Philipp

Axel Büse

Niclas Görrissen

Andreas Strecker

Klaus Dieter Pagel

Christian Strehle

Christian Kebbel

Marco Froschauer

Stefan Schubert

Pejman Bijanzadeh

Philipp Merkel

Samir Attayebi

Gunther Seipel

Heniz-Anton Schneider

Christian Breiten

Lionel Pöffel

Alessandro Giusto

Luca Boscolo

Thomas Merker

Bernd Neitzel

Oliver Stamatoski

Niclas GÖRRISSEN

Jürgen VÖLKEL

Jochen Thiesing

A method for activating a parking brake function of a drum brake of a brake system of a vehicle, wherein a parking situation is taken into account in order to reduce the holding force to be exerted.

Method for activating a parking braking function and a braking system

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

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 method for detecting a movement of a vehicle that has been shut down in a parked state, including: detecting a movement variable which describes a movement of the vehicle, integrating the movement variable, in a manner dependent on a movement direction of the vehicle, to obtain a movement travel, and, if the movement travel meets a predetermined condition, making a decision on the movement for detection.

Detection of movement of a parked vehicle

An electric-motor-operated parking brake system carries out metered actuation without a force and travel sensor. A control unit initiates a primary tensioning process with observation of the current, and wherein secondary or tertiary tensioning processes with increased brake application force are executed exclusively automatically by the control unit if monitoring of the stationary state during an energization interval detects an undesired vehicle movement.

Parking brake actuation method for an electric motor vehicle parking brake system

The invention relates to an actuator system, in particular an electromechanical parking brake system, comprising an actuator, wherein the actuator is driven by a direct current motor that can be driven in both directions of rotation, wherein a control unit for controlling the movement of the direct current motor in an open-loop or closed-loop manner is provided. The core of the invention is that one or more pieces of information are supplied to a control unit, said information allowing the application force exerted by the electromotive actuator to be determined and compared to a predetermined minimum application force, and wherein the control unit emits at least one piece of information, signal or the like for requesting an auxiliary actuation to peripheral systems, components and/or electronic control units after the target to actual value comparison has shown that the determined, set application force is smaller than the predetermined minimum application force.

Actuator system and operating method for an actuator system

A method for hydraulically boosting a vehicle electric parking brake having a hydraulic service brake and an electric parking brake. Application forces electically generated by the parking brake function is superimposed on the boosting brake force generated by a hydraulic boosting brake pressure provided by the service brake to the brake actuator. When the parking brake is actuated to generate a predetermined application force, the force generated by the brake actuator is detected as the actual value, if an actual value of the measured value is smaller than a first target value a boosting brake pressure value is applied to the brake actuator, and by means of the parking brake function an adjustment function for the tension of the brake actuator to which the hydraulic boosting brake pressure is applied is carried out to achieve the predetermined application force.

Method for hydraulically boosting an electric parking brake of a vehicle

An operating method for a motor vehicle including an electronically controlled motor vehicle brake system, having an automated brake release function. A start-up request is determined electronically in an automated manner and subsequently at least one electronic command is transmitted to a parking brake actuating mechanism in order to release the brake, and the electronic unit EPB&#x2212;ESC&#x2212;ECU is networked with communication partners, for example, electronic units, sensors and/or data-bus systems in order to exchange signals and/or data with these communication partners, and including an electronic routine for providing software, configuring and/or calibrating the motor vehicle brake system. For improved operation, in a more flexible configuration routine, the routine for providing software, configuring and/or calibrating the motor vehicle brake system is embodied in a multi-level manner, and subsequent to the vehicle being produced the motor vehicle brake system includes at least self-learning properties in terms of an automated configuration routine.

Operating method for a motor vehicle comprising in particular an electronically controlled parking brake system

A method to limit overheating of a brake equipped with an electromechanically actuable parking brake including the steps of: driving a threaded spindle by an electric motor until a power drain (I), corresponding to a brake application force (F), is reached; detection of a travel distance (x) of the piston corresponding to the brake application force (F) of the brake caliper in a locked state; determination of a second travel distance (x) by adding a further travel distance value (x), which corresponds to the desired clearance value, to form (x); driving of the electric motor until the second travel distance (x) has been covered by the brake piston; and comparing the vehicle speed with a predefined first speed value, at the upward transgression of which the electric motor is driven once more in the release direction until a further, previously defined travel distance (x) has been covered.

Method for the secured release of an electromechanically actuable parking brake

A parking brake having an actuator, wherein the actuator is driven by a direct current motor which can be operated in two directions. The actuator moves, via a self-locking gear mechanism of the actuator, at least one brake shoe for applying or releasing the parking brake in the direction of a rotary element or away therefrom. A control unit for performing open-loop or closed-loop control of the movement of the direct current motor is also provided. The parking brake is designed such that, when the parking brake is applied or released, an application point of the brake shoes against the rotary element is generally overshot. In order to increase the accuracy and reliability of the setting of the brake-application force when the parking brake is applied or of the brake-application clearance when the parking brake is released, the control unit determines the application point by forming the first derivative over time of the electric current taken up by the direct current motor during the application of the brake. A corresponding method for operating such a parking brake is also described.

Parking brake and method for operating same

An electromechanically actuable parking brake for motor vehicles is disclosed. The brake includes at least one electromechanical actuator whose rotational movement is converted into a translational movement by an actuating unit, and which moves at least one brake element in such a way that at least one brake lining which is connected to the brake element is pressed with a locking force against a rotor which is connected to a motor vehicle wheel, wherein the current consumption of electromechanical actuator when the parking brake is engaged and/or released can be acquired. Furthermore, a method for operating the electromechanically actuable parking brake is also disclosed.

Method for the operation of an electromechanically operable parking brake

Disclosed are a method and a control system for applying defined clamping forces in a brake that is electrically operable by means of an actuator and includes a first friction surface (friction lining) and a second friction surface (brake disc). In the method, a correlation exists between the actuator position and the clamping force, and values of the clamping force as well as of the actuator position are determined by a clamping force sensor and a position sensor, and a value of the actuator position is determined, which corresponds to the application of the first friction surface on the second friction surface.

Method and control system for applying defined clamping forces

A parking brake having an actuator, wherein the actuator is driven with a direct current motor which can be operated in two directions and which moves a piston of the actuator and, via a self-locking gear mechanism of the actuator, at least one brake shoe for applying or releasing the parking brake. A control unit for performing open-loop or closed-loop control of the movement of the direct current motor is also provided. During open-loop or closed-loop control of the movement of the direct current motor for applying and/or releasing the parking brake, the control unit takes into account a hydraulic admission pressure which is currently present at the piston if the brake is applied or was present at the piston if the brake has been released when it had previously been applied. A corresponding method for operating such a parking brake is also disclosed.

Disclosed are a method and a control system for applying defined clamping forces in a brake that is electrically operable by an actuator and includes a first friction surface (friction lining) and a second friction surface (brake disc). In the method, a correlation exists between the actuator position and the clamping force, and values of the clamping force as well as of the actuator position are determined. In order to improve the control quality when implementing the method, the nominal value (F) and the actual value (F) of the clamping force are filtered in each one low-pass filter (9, 10) of nth order, whose limit frequency is determined from a correlation between the actual value (n) of the actuator speed and the filtered value (F) of the clamping force, and that the filtered values (F, F) of the clamping force are transformed by means of a predefined characteristic curve into a nominal value (&#x3c6;) and an actual value (&#x3c6;) of the actuator position.

A method for actuating an electromechanical parking brake device for a brake that can be actuated by an electromechanical actuator comprised of an electric motor and of a reduction gear connected downstream of the electric motor and provided for converting a rotational motion into a translatory motion. In order to guarantee that the electromechanical parking brake device works reliably in all operating states without using a tension force sensor, the method determines and stores, during the actuation of a parking brake device, a mean value of the torque of the electric motor necessary for generating the application force of the brake corresponding to the parking brake actuation and simultaneously determines the actuator position and actuates the electric motor at later points of time in such a way that it generates this torque multiplied by a correction factor k&#x3b7;=&#x3e;1 so that the exerted tension force is maintained or increased.

Method for actuating an electromechanical parking brake device

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Kelkheim, Germany

Christof Maron