Continental Teves, Ag and Company Ohg

Continental Automotive Technologies Gmbh

Robert Boschgmbh

Thorsten Ullrich

Robert Schmidt

Thomas Peichl

Martin Brenn

Bernhard Giers

Jochen Führer

Christian Albrich Von Albrichsfeld

Jürgen Böhm

Gunther Buschmann

Manfred Schmitt

Michael Hitzel

Holger Schmidt

Scott F Ross

Axel Wagner

Tibor Toth

Thomas Sticher

Stefan Feick

Klaus Dieter Pagel

Bernd Zielke

Andreea Cenuse

Stefan Daffner

Manfred Liebl

Martin Kraft

Martin Bächle

Roman Büchler

Walter Adler

Henning Tolle

Jürgen Karner

Steffen Gruber

Timo Gurzawski

Jens Lerchenberger

A braking system for a motor vehicle has a plurality of hydraulic brake units for braking each braking one wheel of the motor vehicle and a first electric parking brake actuator for braking a first wheel and a second electric parking brake actuator for braking a second wheel. A first control device comprises a first hydraulic controller which is designed and set up to drive the plurality of hydraulic brake units. In order to ensure parking brake redundancy, the first control device has a driver for driving the first parking brake actuator. A second control device is also provided, which comprises a driver for driving the first parking brake actuator and a driver for driving the second parking brake actuator.

Braking system having a redundant parking brake function

A hydraulic braking system has a vacuum brake booster, an ESC system with a hydraulic pump for generating braking force in a wheel-specific manner in a plurality of wheel brakes, an ESC control device for driving the hydraulic pump and a hydraulic pressure sensor for determining a hydraulic pressure in the hydraulic braking system. For electrified vehicles, an electric vacuum pump is provided for supplying the vacuum brake booster, wherein the ESC control device is designed to drive the electric vacuum pump logically and electrically.

Vacuum-boosted braking system having redundancy

A method for operating a braking system of a vehicle, wherein the braking system comprises a primary hydraulic braking system and a brake actuation unit hydraulically decoupled from the primary braking system. The brake actuation unit comprises at least two sensor arrangements which are configured to detect, independently of one another, actuation information of the brake actuation unit describing a brake request. The method comprises determination of a first actuation information by a first of the sensor arrangements, determination of a second actuation information by a second of the sensor arrangements, checking whether the respective determined actuation information is valid, and if the actuation information is valid, checking whether the determined items of actuation information are mutually plausible, and implementation of the brake request according to the actuation information and/or issue of a warning and/or performance of a predefined braking maneuver by the braking system depending on the validity and plausibility of the actuation information.

Method for operating a braking system of a vehicle, and braking system

A braking system having wheel brakes, a pressure supply device connected to the wheel brakes, a master brake cylinder actuated by a brake pedal and connected to the wheel brakes, and a brake fluid reservoir having a first and a second reservoir chamber separated by a partition wall, wherein the first reservoir chamber is connected to the pressure supply device, via which the pressure supply device is supplied with pressure medium, and the second reservoir chamber is connected to the master brake cylinder, via which the master brake cylinder is supplied with pressure medium The braking system is operated in a first operating mode when the first filling level is reached and a second operating mode when the second filling level is reached, and a hydraulic fallback level if a lowest filling level is reached.

Method for operating a braking system, and braking system

A method for operating an electrohydraulic brake installation for a motor vehicle having at least first, second, third and fourth hydraulically actuatable wheel brakes, a first brake system including a master brake cylinder actuatable by a brake pedal and hydraulically connected by at least one electrically actuatable isolating valve to the four wheel brakes, and including a first electrically controllable pressure provision device hydraulically connected to the four wheel brakes via at least one electrically actuatable sequence valve, and a second brake system including a second electrically controllable pressure provision device hydraulically connected to the first and the third wheel brake, and including in each case one isolating valve for the first and third wheel brake. The isolating valve is arranged in each case in a hydraulic connection between the first brake system and the corresponding wheel brake.

Method for operating an electro hydraulic brake system, and brake system

A method for operating a brake system, which brake system includes a master brake cylinder, which is actuated by the driver with the aid of a brake force booster, a driver-independent pressure source, and at least one wheel brake to which a wheel speed sensor is assigned. During a braking operation initiated by the driver, which is identified in particular by a brake lamp switch, the present vehicle deceleration is determined and compared with a predefined threshold value, and the at least one driver-independent pressure source is activated if the determined vehicle deceleration reaches or falls below the predefined threshold value. A brake system for a motor vehicle, which brake system has a control unit in which the method is carried out is also disclosed.

Method for operating a brake system, and brake system in which the method is carried out

A method for the operation of a brake system having two brake circuits, with a recuperative brake, in particular an electrical generator, a master brake cylinder and a brake pedal simultaneously achieve optimized use of the regenerative braking and a constant braking experience for the driver with the highest safety requirements. When there is a braking demand by the driver with an associated desired braking torque and a first condition is met, at least one outlet valve is opened and brake fluid is conducted with an associated volume of brake fluid into at least one reservoir and the at least one outlet valve is then closed if a second condition is met. The first condition is met if a braking variable corresponding to the braking demand is not less than a specified minimum value. The second condition is met if the volume of brake fluid has flowed into the reservoirs.

Method for operating a brake system, brake systems in which the method is carried out and motor vehicles comprising said brakes systems

A method for monitoring the signal value of a vacuum sensor of a vacuum system in a vehicle, wherein a vacuum generator and a brake booster are provided in the vacuum system, an upper error threshold (&#x2212;p_vac_errorthreshold) is calculated as a function of the operating states of the vacuum generator and of the brake booster, and wherein an error is identified when the signal value of the vacuum sensor exceeds the current value of the error threshold.

Method for monitoring the signal value of a vacuum sensor

In order to impart a pleasant brake pedal feeling to the operator in the transition from a 'conventional mode' to a 'brake-by-wire' mode, it is disclosed that the travel (s) covered upon application of the brake pedal is determined and subsequently reduced by the operator, and in that upon reduction of the actuating travel (s) by a predetermined value (&#x394;s) or in the event of a detected vehicle movement or a positive result of a monitoring function of the connecting and disconnecting device running in the background, the connecting and disconnecting device is activated and the brake booster is actuated by the electronic control unit.

Method of operating a motor vehicle brake system

An electronically controllable brake system includes an electronic controller installed within the motor vehicle for actuating electrohydraulic components of the brake system and for operating the electrohydraulic components during the process of filled with hydraulic fluid and for removing air from hydraulic components of the brake system. A filling sequence is performed according to a predetermined filling profile that utilizes on-board sensors that detect brake system pressure and identify a defined pressure in conformity with a desired filling profile.

Method for bleeding an electronic vehicle braking system

Disclosed is a device for influencing the driving dynamics of a vehicle with an electronic brake system. The device includes a brake actuator for adjusting a brake torque at least one wheel brake of the vehicle. The brake torque can be determined in a torque distributing device according to a yaw torque requirement. A first control unit can be activated in the presence of a critical driving condition as is used to determine a first yaw torque requirement due to driving dynamics control. A management device () has a second control unit, which can be activated in the presence of a subcritical driving condition, and a second yaw torque requirement (R:D_GM) can be determined by the second control unit due to driving dynamics control, and the second yaw torque requirement (R:D_GM) can be sent to the torque distributing device (), and an activated state of the first control unit a signal (I:EBS_Status; R: D_GM; R:[S, S, . . . ]) can be sent from the electronic brake system () to the management device (), which causes deactivation of the second control unit.

Device and method for driving dynamics control in a vehicle

Disclosed is a brake system of the 'brake-by-wire' type for actuating a motor vehicle brake system having a brake booster which is operable in response to the driver's input by a brake pedal and to an electronic regulating and 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. The electronic regulating and control unit () includes a control circuit for controlling the travel (S) covered by the output member () of the brake booster (), the nominal value (S) of the travel (S) covered by the output member () of the brake booster () is calculated corresponding to the actuating travel (S) of the brake pedal (), and a monitoring module () is provided which, in the case of a fault such as the inclusion of air or brake circuit failure, performs a partial compensation of the extension of the travel (S) covered by the output member () of the brake booster (), which extension is caused by the fault.

Brake system

Method for monitoring an electrohydraulic braking system. The volume uptake is determined by the elasticity within the wheel brake that is subjected to certain fluctuations, on the one hand, and to a much greater degree by the clearance that is present, on the other hand. To make a reliable statement relating to the air charge, an estimation of the current clearance is first made, taking three ranges into consideration. If there is a normal clearance, a top evaluation threshold is taken as a basis, which assumes the clearance lies at the upper end of the normal range. When said evaluation threshold is exceeded, an alarm is triggered. If the clearance is assumed to lie at the bottom limit of the normal range, a bottom evaluation threshold applies, however, an alarm is only triggered in this case this situation has occurred several times in succession.

Method for monitoring an electrohydraulic vehicle braking system

The invention discloses methods and control systems for controlling an electronically controllable brake actuating system for automotive vehicles, with a depressurized pressure medium supply reservoir, with at least one pressure source which can be controlled by an electronic control unit. The pressure source is used to apply pressure to the wheel brakes of the vehicle, with pressure sensors and pressure control valves being associated with the wheel brakes. The pressure control valves are controllable in an analog manner by means of an electric variable in dependence on the differential pressure applied to them.

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Gernsheim, Germany

Thorsten Ullrich