Lucas Automotive Gmbh

Zf Active Safety Gmbh

Zf Active Safety US Inc.

Kelsey-hayes Company

Frank Einig

Blaise J Ganzel

Josef Knechtges

Arnold H Spieker

Martin Hofmann

Nicholas Alford

Elmar Hoffmann

Michael Bleser

Kenneth A Doll

Klaus Lemke

Paul Warkentin

Ralf Raffauf

Karl-Josef Adams

Iosu Oloriz Del Rosario

An electromechanical brake pressure generator unit () of a brake-by-wire brake system can only be activated electronically and comprises a master brake cylinder (), an electric motor () and a multi-stage intermediate transmission (). A spindle-nut unit () comprises a nut () having a centring surface () by way of which the piston () of the master brake cylinder () is centred.

Electromechanical brake pressure generator unit

A brake system for selectively actuating at least one wheel brake includes a reservoir and a power transmission unit for selectively providing pressurized hydraulic fluid for actuating at least a selected one of the wheel brakes during a braking event. A first electronic control unit at least partially controls at least one of the power transmission unit and a selected one of the pair of rear brake motors. A second electronic control unit at least partially controls at least one of the power transmission unit and an other one of the pair of rear brake motors. The first electronic control unit controls at least one SAP valve, an isolation valve, and a dump valve for a selected two of the wheel brakes, and the second electronic control unit controls at least one SAP valve, an isolation valve, and a dump valve for an other two of the wheel brakes.

Apparatus and method for selectively actuating wheel brakes of a hydraulic brake system

An electrohydraulic vehicle braking system is provided, comprising an electrically controllable first hydraulic pressure generator and an electrically controllable second hydraulic pressure generator. The braking system further comprises a first valve device for each wheel brake, having at least one first valve, wherein in an electrically uncontrolled state the first valve device separates its associated wheel brake from an output of the first hydraulic pressure generator, and in an electrically controlled state connects it to the output of the first hydraulic pressure generator. In addition, a second valve device for each wheel brake is provided, having a second valve between an output of the second hydraulic pressure generator and its associated wheel brake, as well as a third valve between this wheel brake and a first hydraulic fluid reservoir. The first valve device and the second valve device are arranged in parallel to one another.

Electrohydraulic vehicle braking system having redundant hydraulic pressure generation, and method for operating the braking system

The invention relates to a vehicle braking system having regulating devices determining the transversely dynamic behavior of the vehicle, in order to maintain or restore stable vehicle behavior, by setting the braking torque on individual vehicle wheels independently of the driver. The performance of the braking system is controlled in this manner to help prevent vehicle rollover (overturning laterally) when negotiating curves. This is accomplished by generating a braking torque on the front wheel on the outside of the curve (or increasing a braking torque that is already set).

Vehicle braking system

An apparatus and method for determining the presence of excessive yaw rate in a vehicle by calculating an instability index that is a function of the vehicle yaw rate and generating an excessive yaw rate signal when the instability index exceeds a yaw rate threshold.

Method and apparatus for detecting and correcting trailer induced yaw movements in a towing vehicle

The performance of a system for controlling vehicle-movement dynamics, which operates the braking system and the drive train of a vehicle in order to prevent lateral breakaway of the vehicle, is improved yet further for the case in which oversteering of the vehicle is to be compensated. To this end it is proposed, according to the invention, that a braking moment be produced on the front wheel on the outside of the bend by the braking system, and an additional drive moment be built up by the drive train on the driven wheels.

System for controlling driving dynamics

Growing community of inventors

Ochtendung, Germany

Frank Einig