Zf Active Safety Gmbh

Zf Friedrichshafen Ag

Lucas Automotive Gmbh

Zf Active Safety US Inc.

Paul Warkentin

Martin Hofmann

José Manuel Calvo Martinez

Kurt Wingender

Detlef Baasch

Boris Koeth

Jens Sparfeld

Stefan Kammers

Ingo Decker

Klemens Humm

Blaise J Ganzel

Frank Einig

Klaus Lemke

Karl-Josef Adams

Iosu Oloriz Del Rosario

Jose-Manuel Calvo Martinez

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

The invention relates to an assembly for a vehicle brake system, which comprises at least one brake cylinder and an electromechanical brake booster, having a drive arrangement for driving at least one actuating device designed for actuating a brake cylinder, wherein the drive arrangement has at least one electric motor and a gear mechanism for coupling the electric motor to the at least one actuating device, wherein at least one fastening device is provided for fastening the assembly to a vehicle, said fastening device defining a fastening plane. According to the invention the rotary shaft of the electric motor is arranged perpendicular to the longitudinal axis of the actuating device and at an angle of between 60&#xb0; and 120&#xb0; to the fastening plane.

Assembly having a brake cylinder and an electromechanical brake booster

The electromechanical brake force booster for a vehicle brake system comprises a drive arrangement for driving at least one actuating device which is designed for actuating a brake cylinder. The drive arrangement has at least one electric motor and a gearing for coupling the electric motor to the at least one actuating device. The gearing comprises at least one second spur gear and at least one first spur gear. Furthermore, the gearing has an intermediate gearing stage. The intermediate gearing stage couples the electric motor to the second spur gear and to the first spur gear in torque-transmitting fashion. The intermediate gearing stage drives the second spur gear directly and the first spur gear via at least one intermediate gear.

Electromechanical brake force booster

A vacuum brake booster for a motor vehicle brake system, comprising a displaceable force input member that is coupled to or can be coupled to a brake pedal, a chamber arrangement arranged in a booster housing having at least one working chamber and at least one vacuum chamber, which are separated from one another via at least one movable wall, a control valve assembly that can be actuated by the force input member, and a force output member for transmitting an operating force to a downstream brake system. The at least one working chamber can be fluidically connected optionally to a negative pressure source or the atmosphere by way of the control valve assembly. The control valve assembly comprises a control valve housing, in which an actuating piston that is coupled with the force input member s displaceably arranged, and a first valve seat, and a second valve seat. Upon an actuation of the force input member, a throttle sleeve can be displaced from the initial position relative to the control valve housing by a predetermined functional path. During the displacement, the throttle sleeve is in abutment with the actuating piston such that a fluidic connection between the at least one working chamber and the ambient atmosphere by way of a throttle window is present. Upon exceeding the functional path, the throttle sleeve lifts off the actuating piston.

Vacuum brake booster having a throttle control valve assembly

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Neuwied, Germany

Paul Warkentin