Lucas Automotive Gmbh

Peter Schlüter

Monika Matthei

Frank Schlüter, Legal Representative

Alexander Schlüter, Legal Representative

Stefan Schlüter, Legal Representative

Irina Gerdt, Legal Representative

Frank Schlüter

Stefan Schlüter

Irina Gerdt

The present invention relates to a master cylinder arrangement for a motor vehicle hydraulic brake system comprising a housing, in which two adjacent cylinder bores are provided, two piston arrangements, wherein a first piston arrangement is received in a first of the cylinder bores so as to be displaceable along a first bore longitudinal axis and wherein a second piston arrangement is received in a second of the cylinder bores so as to be displaceable along a second bore longitudinal axis, a force input piston, which is connectable or connected to a brake pedal, wherein in accordance with a movement of the force input piston the first piston arrangement and the second piston arrangement are displaceable, wherein the first piston arrangement with the housing delimits a first pressure chamber, which is fluidically connected to a hydraulic brake system, and wherein the second piston arrangement with the housing delimits a second pressure chamber, which is fluidically connected to the hydraulic brake system. In this master cylinder arrangement it is provided that between the first piston arrangement as well as the second piston arrangement and the force input piston a separate transmission element is disposed, which is movable into joint abutment with the first piston arrangement and the second piston arrangement.

Master cylinder system for an automotive hydraulic brake system and automotive hydraulic brake system

The invention relates to a vacuum-assisted brake-force booster for a motor-vehicle braking system with: With this booster, for the purpose of simplifying the structure there is provision that the pneumatic connecting element is fitted to the first movable wall and to the second movable wall.

Vacuum-assisted brake-force booster for a motor-vehicle braking system

The invention relates to a master brake cylinder arrangement of a motor vehicle brake system with a master brake cylinder housing, a transmission piston disposed in a displaceable manner in the master brake cylinder housing, and a force input member which can be workingly coupled to the transmission piston in order to introduce a braking force. According to the invention, in order to simplify assembly and to reduce the required construction space, an adapter is coupled to the master brake cylinder housing, to which adapter a contact sleeve is fitted, the force input member being supported at the contact sleeve in a non-actuated starting position.

Master brake cylinder arrangement of a motor vehicle brake system

The invention relates to a master brake cylinder arrangement for a hydraulic motor vehicle brake system having a housing, in which two adjacent cylinder bores are provided, two piston arrangements, in which a first piston arrangement is received in a first cylinder bore of the cylinder bores such that it is displaceable along a first longitudinal bore axis and in which a second piston arrangement is received in a second cylinder bore of the cylinder bores such that it is displaceable along a second longitudinal bore axis, a force input piston which can be coupled, or is coupled, to a brake pedal and which is displaceably guided along an actuating axis in a cutout of the housing, the first piston arrangement and the second piston arrangement being displaceable according to a movement of the force input piston, in which the first piston arrangement delimits a first pressure chamber with the housing, said pressure chamber being fluidically connected to a hydraulic brake system, and in which the second piston arrangement delimits a second pressure chamber with the housing, said pressure chamber being fluidically connected to the hydraulic brake system. It is provided that, arranged between the first piston arrangement and the second piston arrangement and the force input piston, there is a transmission element on which a coupling projection is mounted, which is connected, or can be connected, in force-transmitting manner to the force input piston for common movement.

Master brake cylinder arrangement for a hydraulic motor vehicle brake system and motor vehicle brake system

In a brake force generator for a vehicle hydraulic brake system having a force input element, which is connectable or connected to a brake pedal and displaceable in a base housing of the brake force generator, a master cylinder, in which a primary piston is displaceably guided, wherein the primary piston with the master cylinder delimits a primary pressure chamber for generating a hydraulic brake pressure, an electromagnetic actuating force generating device for exerting an actuating force on the primary piston, and at least one operating position detecting device for detecting the present operating position of the brake force generator, it is provided that the actuating force generating device is controllable in accordance with a brake pedal actuation and that the brake force generator is provided with a central connector, in which contact elements for contacting electric lines to the actuating force generating device and to the operating position detecting device are integrally provided.

Braking force generator for a hydraulic vehicle brake system

In a brake force generator () for a vehicle hydraulic brake system having a force input element (), which is connectable or connected to a brake pedal (P) and displaceable in a base housing of the brake force generator (), a master cylinder, in which a primary piston () is displaceably guided for generating a hydraulic brake pressure, a pedal counterforce simulating device () connected to the force input element (), a pedal actuation detecting device () for detecting a pedal actuation, and an actuating force generating device for exerting an actuating force on the primary piston (), it is provided that the actuating force generating device comprises a control valve (), a chamber arrangement () and an electromagnetic actuator (), wherein the chamber arrangement () is designed with a vacuum chamber () and a working chamber (), which is separated from the vacuum chamber () by a movable wall () and is fluidically connectable to the vacuum chamber () by the control valve (), and wherein the control valve () may be activated in accordance with the detected pedal actuation.

Braking force generator for a hydraulic vehicle braking system

A vacuum brake booster () is described, comprising a vacuum chamber () and a working chamber () separated from each other by a movable wall (), as well as a control valve () which comprises a housing () coupled workingly to the movable wall and which is capable of controlling the supply of atmospheric pressure or above-atmospheric pressure to the working chamber () in dependence upon the displacement of an input element () of the brake booster () to achieve a pressure difference at the movable wall (). The vacuum brake booster () has a sensing disk (), which is disposed in an axially displaceable manner inside the control valve housing (), as well as a coupling device (), which introduces forces acting counter to the actuating direction upon the sensing disk () in a coupled position into the control valve housing () and in an uncoupled position via an actuating piston () into the input element (). The coupling device () comprises a coupling element () for introducing forces acting counter to actuating direction into the control valve housing () as well as an axially displaceable actuating element (). The coupling device () further comprises a detent element (), which is movable in radial direction and disposed radially outside of the coupling element (), and the coupling element (), radially at the outside, has a stop (B) for the detent element (), wherein in the coupled position the forces acting counter to actuating direction are introduced by the coupling element () via the stop (B) and the detent element () into the control valve housing ().

Growing community of inventors

Kammerforst, Germany

Peter Schlüter