Continental Teves, Ag and Company Ohg

Thomas Voigtmann

Manfred Rüffer

Holger Von Hayn

Wolfgang Ritter

Jürgen Schonlau

Heinrich Kreh

Ingo Knewitz

Torsten Queisser

Milan Klimes

Dieter Merkel

Dirk Simon

Oliver Kugland

A main brake cylinder, for use within an electronic braking system for motor vehicles, having a device for contactless monitoring of a position of a piston that can be linearly moved along a piston axis. The device includes a movable element and a sensor unit. The sensor unit is fixedly arranged on a housing of the main brake cylinder and is connected to an electronic evaluation unit for processing signals from the device. According to the invention, in order to further increase function precision, to lower manufacturing expenditure, number of components, and costs, to reduce overall length, and to improve calibration options, a magnetic field is realized such as to be emittable from the sensor unit, and a yoke is dedicated to the piston for position-dependently changing the magnetic field such that the change can be detected by the sensor unit.

Main brake cylinder having a device for the contactless monitoring of the position and movement of a linearly movable piston

A motor vehicle includes an electrohydraulic brake system with driving dynamics control, a master brake cylinder (), wheel brakes (-), and at least one pressure fluid supply device () actuated by an electronic control unit. The pressure can be applied to the wheel brakes () of the vehicle which are also connectable to the master brake cylinder () by way of a closable hydraulic connection (). A device for detecting a brake application includes a magnet () as a signal transmitter and a sensor element (). The sensor element (), upon piston movement of the master cylinder (), senses a change in the magnetic field and outputs a digital signal and an analog signal. The two signals are passed on to an electronic control unit and are evaluated in the electronic control unit.

Method and device for controlling a motor vehicle comprising an electronically controlled brake system with driving dynamics control

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Leipzig, Germany

Thomas Voigtmann