Lucas Automotive Gmbh

Zf Active Safety Gmbh

Lucas Industries Limited

Frank Heller

Josef Knechtges

Thomas Bach

Andreas Marx

Helmut Gegalski

Thomas Wald

Christian Freund

Michael Schwarz

Thomas Wagner

Christian Chemnitz

Jan Grundmann

Josef Knechtgens

Thorsten Sopp

In a method for operating a brake system of a vehicle during autonomous driving of the vehicle, a presence of status information relating to a driving command unit which controls the autonomous driving is checked by a brake control unit of the brake system. If the brake control unit detects that the status information is missing or detects status information which indicates an error of the driving command unit, a control signal which controls the autonomous driving in the longitudinal and/or transverse direction is generated by the brake control unit from current environmental data and/or driving parameters.

Method for operating a brake system, brake system and control system

The invention relates to a method for operating a hydraulic brake system () in a motor vehicle with regenerative braking function. In the method, if a generator braking force of an electric machine () is present or incipient, a hydraulic connection () between a brake cylinder () and a wheel brake () is opened before a hydraulic fluid is displaced in the direction of the wheel brake () by means of the brake cylinder (). The invention furthermore relates to a hydraulic brake system () for a motor vehicle with regenerative braking function, and to a method for controlling a hydraulic brake system () with regenerative braking function. The invention also encompasses a computer program product, a control unit and a motor vehicle.

Method for operating a hydraulic brake system in a motor vehicle with regenerative braking function, hydraulic brake system and method for the control thereof, computer program product, control unit and motor vehicle

A method for operating an electrically controllable brake system for a motor vehicle having at least one electrically actuated valve arrangement for setting a pressure difference between a second brake pressure and a first brake pressure, wherein in a first time interval a predetermined first pressure difference is set and an associated first power consumption value of the pump is identified; in a second time interval a predetermined second pressure difference is set and an associated second power consumption value of the pump is identified; a correction value is obtained from the first power consumption value and the second power consumption value; the correction value is taken into account for setting a set-point value for the pressure difference.

Method of operating an electrically controllable brake system and brake system which is operated according to the method

A device and method for a hydraulic brake system of a land vehicle in order to block a brake circuit of the brake system with regard to a supply of brake pressure generated by a driver, to establish a hydraulic connection between the output side of a wheel brake and the input side of a controllable pump and to generate a predetermined brake pressure at the input side of the wheel brake by the use of a pump.

Devices and methods for hydraulic brake systems for land craft

Hydraulic brake system for a land vehicle includes a control unit that supplies control signals for controlling automatic braking operations of the brake system, a master cylinder for generating brake pressure under the control of a driver, a first brake circuit includes a first controllable pump for generating brake pressure in the first brake circuit under the control of the control unit, and a first valve arrangement having an input side, which is fluidically connected to the master cylinder, and an output side, which is fluidically connected to the first pump, wherein the first valve arrangement has an open operating state, in which the input side and the output side of the first valve arrangement are fluidically connected, and a closed operating state, in which the fluid connection between the input side and the output side of the first valve arrangement is interrupted.

Pressure-controlled hydraulic brake system for a land craft

In a method for braking a vehicle by means of a fluidically triggerable vehicle brake system, wherein the vehicle brake system comprises a respective fluidically triggerable brake unit that is assigned to a vehicle wheel and is fluidically coupled to a brake force generator via at least one fluid circuit, wherein a pumping mechanism by means of which at least one of the brake units can be fed with brake fluid regardless of whether the brake force generator is activated, is provided in the at least one fluid circuit in order to convey brake fluid, and wherein control valves by means of which the brake force generator can be fluidically coupled to and disconnected from the brake units and the pumping mechanism are provided in the fluid circuit, it is provided that in order to comfortably create a parking brake condition, the following steps are carried out:

Method for braking a vehicle by means of a fluidically triggered vehicle brake system, and vehicle brake system

An anti-locking brake system for a land vehicle, which is set up in particular for traction control and vehicle dynamics control, comprises a pump ( ) for actuating a wheel brake ( ) which removes brake fluid from a brake pressure generating unit ( ) and supplies it to the wheel brake ( ), wherein a first valve arrangement ( ) blocks in a non-actuated (normal) position ( ) the connection between the brake pressure generating unit ( ) and an input connection ( ) of the pump ( ) and in at least one actuated position ( ) establishes a primary flow connection (A), a first electromagnetic valve ( ) establishes in a non-actuated position ( ) the connection between an output connection ( ) of the pump ( ) and the brake pressure generating unit ( ), and blocks it in an actuated position ( ), a second electromagnetic valve ( ) blocks the connection between the wheel brake ( ) and the input connection ( ) of the pump ( ) in a non-actuated position, and in an actuated position establishes it, and a third electromagnetic valve ( ) establishes the connection between the output connection ( ) of the pump ( ) and the wheel brake ( ) in a non-actuated position ( ) and blocks it in an actuated position ( ). To generate a more accurate pressure modulation during the operating phase &ldquo;maintain pressure&rdquo; (II), the third electromagnetic valve ( ) is in the actuated position during said operating phase.

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Boppard, Germany

Frank Heller