Robert Boschgmbh

Manfred Gerdes

Herbert Vollert

Patrick Christian Schaefer

Christian Binder

Andreas Erban

Helmut Pueschel

Peter Ziegler

Oliver Fuchs

Markus Weigel

Sylvia Futterer

Michael Butz

Vairavan Arunachalam

Guenther Schmidt

Helmut Wiss

Jochen Mayer

Thomas Schmidt

Dirk Mahnkopf

Christian Schmidt

Karl-Josef Weiss

Herbert Lohner

Thomas Ehret

Armin Verhagen

Stefan Otterbein

Martin Marquart

Florian Haag

Ralf Becker

Ansgar Traechtler

Marko Flinner

Thomas Rader

Alexander Haeussler

Juergen Schuh

Gerd Busch

Ralf Gutmann

Thomas Glasstetter

Friedrich Stelter

Bernhard Maier

Albert Lutz

Julian Ewald

Eduardo Herrera Lopez

Frank Niewels

Karlheinz Frese

Martin Sackmann

Jochen Koretz

Dietmar Martini

David Rubia Serrano

Martin Gustmann

A control apparatus/method for operating an electromechanical brake booster of a vehicle braking system, including: applying control to an electromechanical brake booster motor in consideration at least of a braking definition signal regarding a braking input of a driver and/or automatic speed control system of the vehicle (ACC); specifying, in consideration at least of the braking definition signal, a target motor force of the electromechanical brake booster motor or a target brake application force of the electromechanical brake booster into a brake master cylinder, downstream from the electromechanical brake booster, of the braking system; and applying control to the electromechanical brake booster motor in consideration of a force difference between the specified target motor force and an estimated/measured actual motor force of the motor, or between the specified target brake application force and an estimated/measured actual brake application force of the electromechanical brake booster into the downstream brake master cylinder.

Control device and method for operating an electromechanical brake booster of a brake system of a vehicle

The disclosure relates to a control device and a corresponding method for operating an electromechanical brake booster of a brake system of a vehicle, comprising an electronics unit that defines a target variable with respect to a target rotational speed of a motor of the electromechanical brake booster, taking into account a brake input signal with respect to a braking request, and that sends at least one control signal to the motor. The electronics unit defines a maximum target variable with respect to a maximum target rotational speed of the motor, taking into account a current intensity of a motor current of the motor and a current angle of rotation of a rotor of the motor, and defines the target variable with respect to the target rotational speed of the motor of the electromechanical brake booster to be at the most equal to the defined maximum target variable.

In an electronic evaluation system for a vehicle braking system equipped with an electromechanical brake booster, a method for estimating a brake master cylinder pressure includes: estimating a first initial value of the pressure based on a first current intensity of a current of a motor of the booster at the first time and on a first rotation angle of a rotor of the motor at the first time; specifying a correction value as a difference between the first initial value and a measured value of the pressure; estimating a second initial value of the pressure based on a second current intensity of the current at the second time and on a second rotation angle of the rotor at the second time; and specifying, based on the second initial value and the correction value, an estimated value of the pressure at the second time.

Evaluation electronics and method for estimating a master brake cylinder pressure in a vehicle brake system equipped with an electromechanical brake booster

A control device and a method for operating an electromechanical brake booster of a brake system configured to execute anti-lock control actions, including the steps: determining a setpoint variable regarding a setpoint brake pressure to be produced by the electromechanical brake booster, in view of at least a differential travel; and controlling the electromechanical brake booster in view of the determined setpoint variable; at least during an anti-lock control action carried out in the brake system, it being ascertained if the differential travel lies outside of a specified normal value range, and in some instances, the additional steps being executed: determining a correction variable for the setpoint variable in view of at least a difference between the determined setpoint variable and an actual variable regarding an actual pressure present in at least part of the volume of the brake system, and controlling the electromechanical brake booster in additional view of the determined correction variable.

Control device and method for operating an electromechanical brake booster of a brake system configured to execute anti-lock control actions

In a method, which can be performed by a control device for carrying out an emergency braking and/or panic braking of a vehicle, in a first phase, a setpoint vehicle deceleration requested instantaneously by a driver is ignored and a motor of an electromechanical brake booster is operated in a predefined high power mode such that a main brake cylinder pressure in the main brake cylinder is increased; in an intermediate phase, the main brake cylinder pressure is reduced to a setpoint pressure by pumping brake fluid from the main brake cylinder into the at least one wheel brake cylinder and the motor force of the motor is reduced to a setpoint force; and the brake pressure increase in the at least one wheel brake cylinder is continued during a second phase only if the driver requests instantaneously a setpoint vehicle deceleration.

Method and control device for carrying out an emergency braking and/or panic braking of a vehicle

The invention relates to a control device () for at least one electromechanical brake booster of a brake system of a vehicle having an electronics device () that is designed to compare a provided sensor signal () relating to a differential path (d) between a valve body (), displaced by a controlled motor, of the electromechanical brake booster and an input rod () of the brake system with a specified normal value range, such that, if the sensor signal () relating to the differential path (d) lies outside the specified normal value range, the electronics device () is in addition designed to define a maximum limit value for a target quantity relating to a target motor torque to be carried out by the motor, at least taking into account the sensor signal (), in such a way that, at least during a specified time interval after the defining of the maximum limit value, at most an actual motor torque corresponding to the defined maximum limit value can be carried out by the controlled motor. The present invention also relates to an electromechanical brake booster for a brake system of a vehicle, to a brake system for a vehicle, and to a method for operating an electromechanical brake booster of a brake system of a vehicle.

Control device and method for operating an electromechanical brake booster

A method for ascertaining information relating to a mechanically effective power of an active brake booster of a braking system of a vehicle, including: ascertaining a first piece of information relating to an assisting force that is effectuated with the aid of the operated active brake booster, ascertaining a second piece of information relating to a pressure force in a master brake cylinder of the braking system, situated downstream from the active brake booster, the pressure force acting counter to the operated active brake booster, ascertaining a third piece of information relating to a spring force of at least one spring of the active brake booster and/or of the braking system, the spring force acting counter to the operated active brake booster, and establishing the information relating to the mechanically effective power of the active brake booster, taking into consideration the first, second, and third pieces of information.

Evaluation and/or control device and method for ascertaining information relating to a mechanically effective power of an active brake booster

A control device for a controllable brake booster of a braking system is configured to: establish a setpoint variable regarding a setpoint operation to be carried out with the aid of the controllable brake booster, under consideration of a provided specified variable regarding a setpoint pressure to be set in a partial volume of the braking system; establish a setpoint difference of the setpoint variable, under consideration of the specified variable and an actual variable regarding an actual pressure present in a subarea of the braking system, to establish a corrected setpoint variable taking the established setpoint difference into consideration; and output a control signal which corresponds to the established corrected setpoint variable to the controllable brake booster and/or to the power supply component of the controllable brake booster.

Control device for a controllable brake booster of a braking system and method for operating a controllable brake booster of a braking system

A sensor device, active brake booster, and method for a braking system, including an active brake booster for carrying out/boosting an autonomous or partially autonomous brake pressure buildup, including an electronic device, which, at least during the autonomous or partially autonomous brake pressure buildup by the active brake booster, is configured, based on at least one deformation variable, provided externally or established by the sensor device, as to a deformation of the active brake booster, and/or a tensile force which effectuates the deformation and is exerted on a brake pedal, to output at least one activation signal to a warning display device and/or to a warning sound output device and/or at least one control signal to the active brake booster, to control the latter at least for a predefined first time interval into a safety mode or to interrupt the latter at least for a predefined second time interval.

Sensor device and method for carrying out or boosting an autonomous build-up of brake pressure in a braking system with the aid of an active brake booster

A method for controlling a brake booster in a hydraulic brake system, in which the smallest partial pressure target value of at least three partial pressure target values is ascertained, and is then defined as the target pressure value and is then set using a brake booster.

Method for operating a brake booster, control device for carrying out the method, and a brake system comprising the brake booster and the control device

An electromechanical brake booster is provided for a braking system of a vehicle, having a valve body and an input rod, the valve body, to which at a displacement motion in a brake application direction has been imparted, being displaceable up to a differential travel equal to a limit differential travel with reference to the input rod, and then a co-displacement motion in the brake application direction being impartable to the input rod if the co-displacement motion is acted against at most by a retention force below a predefined threshold value, and at least one buffer element being disposed on the input rod and/or on the valve body in such a way that if a retention force above the predefined threshold value acts against the co-displacement motion, the differential travel is increasable above the limit differential travel by way of a deformation of the at least one buffer element.

Electromechanical brake booster and method for operating an electromechanical brake booster

A method for operating a brake booster of a vehicle includes: establishing an actual displacement speed signal of an input rod, to which a driver brake force is at least partially transmitted; filtering high-frequency and/or low-frequency signal components out of the established actual displacement speed signal; establishing a setpoint displacement speed signal of at least one booster piston, which is displaceable with the aid of the brake booster, at least in consideration of a predefined characteristic curve and the filtered actual displacement speed signal; and establishing an activation signal of the brake booster at least in consideration of the established setpoint displacement speed signal and outputting the activation signal to the brake booster to displace at least the booster piston at an execution speed corresponding to the activation signal.

Method for operating a brake booster of a vehicle and control device for a break booster of a vehicle

A power-assisted braking system for a vehicle is described, including: a brake master cylinder having a chamber which is hydraulically connected to a wheel brake cylinder for braking a wheel of the vehicle; a hydraulic actuator which activates a piston of the brake master cylinder in order to pressurize the hydraulic fluid in the chamber; a low-pressure accumulator which stores the hydraulic fluid under pressure, and the actuator for activating the piston of the brake master cylinder; a pump which supplies the hydraulic fluid from the tank to the low-pressure accumulator; and a drive device which drives the pump. A method for controlling a power-assisted braking system is also described.

Power-assisted braking system for a vehicle and method for controlling the power-assisted braking system

A method for determining the probability a handling truck tipping over includes determining a respective normal force acting in the z direction for at least two of at least three wheels of the handling truck. At least two normal forces are compared and the probability of the tipping of the handling truck is determined on the basis of the comparison.

Method for determining the probability of a handling truck's tipping over

In a method and a device for the control of a vehicle brake system, the setpoint values for each wheel are corrected based on the difference between brake pressures in at least one wheel brake of two different brake circuits.

Method and device for the control of a brake system

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Vaihingenenz, Germany

Manfred Gerdes