Robert Boschgmbh

Daniel Brenndoerfer

Thomas Friedrich

Edgar Kurz

Dirk Drotleff

Ralf Kleemann

Bernd Hienz

Dietmar Kratzer

Guenther Schnalzger

Klaus Heyer

Jens Kolarsky

Michael Eisenlauer

Harald Speer

Wolf Stahr

Gerhard Stokmaier

Nicolas Houis

Elmar Vier

Martin Kirschner

Joerg Fricke-Schmidt

Martin Haas

Reinhard Fink

Pascal Godbillon

Friedrich Mueller

Florian Richter

Anton Fritz

Florian Rispler

Christoph Kasper

Oliver Holz

Alice Schacherl

Stefan Eichmann

Kurt Mueller

Jean-Guillaume Pic

Volkmar Wetschorek

Franz Neuhauser

Hubert Rapp

Joel Braun

A multi-circuit, hydraulically open brake system includes a first pressure generator assigned to a main system with a first energy supply and a first evaluation and control unit (ECU), and is connectable via a first shut-off valve to wheel brake(s) of a first brake circuit and via a second shut-off valve to wheel brake(s) of a second brake circuit. A second pressure generator is assigned to a secondary system which includes a second energy supply and a second ECU, and is connectable via a third shut-off valve to wheel brake(s) of the first brake circuit and via a fourth shut-off valve to wheel brake(s) of the second brake circuit. The second ECU controls the second pressure generator. Components of the modulation unit for individual brake pressure modulation are assigned to the main system, and the components are controlled by the first ECU and are supplied by the first energy supply.

Multiple-circuit hydraulically open braking system, in particular for a highly automated or autonomous vehicle

A hydraulic braking system for a vehicle has two sub-braking systems hydraulically separated from one another. A first sub-braking system of a first axle has a first circuit, a main system with a first power supply and a first ECU, and a secondary system with a second power supply and a second ECU. The first circuit includes first and second pressure generators assigned, respectively, to the main system and the secondary system, in parallel between a fluid container and wheel brakes. A modulation unit connects the pressure generators to the wheel brakes. A second sub-braking system of a second axle includes a second circuit and an auxiliary system with a third power supply and a third ECU. The second circuit includes a pressure generator assigned to the auxiliary system arranged between a fluid container and wheel brakes, and a modulation unit connecting the pressure generators to the wheel brakes.

Hydraulic braking system for a vehicle having at least two axles

The disclosure relates to a hydraulic brake system for a highly automated or autonomous vehicle which includes three pressure generators which provide sufficient braking force even in a case of a fault. Two of the pressure generators are assigned in a redundant manner to one axle and a modulation unit is configured to hydraulically connect the two pressure generators to the wheel brakes of the first axle, and to perform individual brake pressure modulation in the wheel brakes. The third pressure generator is hydraulically separate from the other pressure generators, and another modulation unit is configured to hydraulically connect the third pressure generator to wheel brakes of another axle, and to perform individual brake pressure modulation in the wheel brakes.

A multiple-circuit hydraulically open braking system, for a highly automated or autonomous vehicle, includes at least two wheel brakes each assigned to a braking circuit having a pressure relief path, two multiple-circuit pressure generators hydraulically connected in series between a fluid container and the at least two wheel brakes, and a hydraulic unit for hydraulically connecting the pressure generator to the at least two wheel brakes and for individual brake pressure modulation in the at least two wheel brakes. A first pressure generator is configured as a plunger system and is assigned to a main system having a first energy supply and a first evaluation and control unit. A second pressure generator is configured as a second plunger system or as a pump system and is assigned to a secondary system having a second energy supply that is independent from the first energy supply and a second evaluation and control unit.

A multiple-circuit, hydraulically open brake has two single-circuit pressure generators hydraulically connected in parallel between at least one fluid container and at least two wheel brakes and a modulation unit for individual brake pressure modulation in the at least two wheel brakes. A first pressure generator is assigned to a main system which has a first energy supply and a first evaluation and control unit, and a second single-circuit pressure generator is assigned to a secondary system, which has a second energy supply which is independent of the first energy supply, and a second evaluation and control unit. The second evaluation and control unit controls the second pressure generator. Components of the modulation unit are assigned to the main system so that the modulation unit and the first pressure generator are controlled by the first evaluation and control unit and supplied with energy by the first energy supply.

Multiple-circuit, hydraulically open brake system, in particular for a highly automated or autonomous vehicle

An electronically slip-regulated vehicle brake system is configured to change from an external force powered operating brake mode into a muscle-powered auxiliary brake mode, and includes a master brake cylinder configured to be operated, a pedal travel simulator configured to simulate an operating travel of the master brake cylinder during the operating brake mode, and a simulator control valve. The simulator includes two pressure chambers. The control valve is configured to control a flow of pressure medium into a first of the two pressure chambers from the master brake cylinder, and is disposed in a return line connecting a wheel brake to a reservoir tank at a position downstream of a connection point at which a second of the two pressure chambers of the simulator is connected to the return line.

Electronically slip-regulated vehicle brake system

A hydraulic component, in particular of a hydraulic braking system, includes a conduit section through which brake fluid flows. The conduit section has at least one reflection surface that is impinged by the brake fluid.

Hydraulic component, in particular of a hydraulic braking system

The invention relates to a valve cartridge for a solenoid valve, having a capsule, a magnetic armature that is movably guided within the capsule, a valve insert that is inserted into the capsule at a first end, and a valve body, which is pressed into a second end of the valve insert and has a main valve seat. The magnetic armature, moved by a generated magnetic force, moves a tappet guided within the valve insert. The tappet has a closing element with a sealing element which plunges into the main valve seat of the valve body in a sealing manner for carrying out a sealing function, and an associated solenoid valve. According to the invention the valve insert is configured as a one-part slotted bushing, and the valve body is configured as a bonnet-shaped bushing. The valve body configured as a bushing is pressed into a second end of the valve insert configured as a slotted bushing such that the main valve seat is disposed within the valve insert.

Valve cartridge for a solenoid valve, and associated solenoid valve

Growing community of inventors

Ludwigsburg, Germany

Daniel Brenndoerfer