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Robert Boschgmbh

Temic Telefunken Microelectronic Gmbh

Daimler Chrysler Ag

Daimlerchrysler Ag Stuttgart

Werner Wiedemann

Matthias Gramann

Gerhard Hettich

Wolfgang Thiel

Werner Flierl

Gunther Breu

Peter Robitschko

Kurt Maute

Reinhard Orthmann

Gunther Alberter

Michael Nagel

Ehrenfried Fabry

Jurgen Schenk

Ferdinand Friedrich

Rudolf Wilczek

Dieter Meyer

Hans Petermann

Gunther Bichlmaier

Hermann Baumel

Hans-Joachim Fach

Holger Steffen

Thomas Rupprecht

Udo Teubert

Dieter Grafje

Hermann B&auml;umel

Horst Kretschmer

G&uuml;nther Alberter

Robert Doll

Hartmut Berndt

Georg Goddard

Bernhard Pirkl

Walter Ereth

Bernhard Dilz

Rainer Ertel

Hans-Peter Schoener

Reiner Doefler

A method for controlling an internal combustion engine with the aid of an engine control unit, having actuators for the electromagnetic valve control, as well as additional actuators, wherein each cylinder head has a separate actuator control unit, which is connected via a data bus to the engine control unit.

Method for controlling an internal combustion engine

A method of operating an actuator for electromagnetically controlling a valve in an internal combustion engine involves supplying a heating current to the operating coils of the actuator before starting the internal combustion engine from a cold start condition. Thereby, the operating coils, the components surrounding them, and the lubricant are heated to ensure proper viscosity of the lubricant and thus proper operation of the actuator.

Method for operating actuators for electromagnetically controlling a valve

Actuators operating device for electromagnetic valve actuation in

A process for monitoring an opening of an enclosed space by an IR alarm system, wherein: a measuring process is generated whereby a modulated IR beam is emitted by at least one IR emitting element of an optoelectronic unit in the form of a pulse and the beam reflected from marginal areas of the opening is detected as a measurement signal by at least one IR receiving element of the optoelectronic unit, with the directional characteristic of th IR beam being matched, by optical components in the path of the beam, to the opening being monitored; the measurement signal detected by the receiving element is compared with a mean value of the previous measurement signals, and a normal operating mode of the alarm system is initiated if there is an approximate correlation between the measurement signal and the mean value, or an alarm operating mode of the alarm system is initiated if there is a significant deviation between the measurement signal and the mean value; in the normal operating mode, the next measuring process is generated after a pause in time, during which the control unit, emitting element and receiving element are switched off; and, in the alarm operating mode, a number of measuring processes are generated in immediate succession and compared with criteria stored in the control module, and an alarm signal is tripped if the measurement signals from the measuring processes correspond with the stored criteria.

Process for monitoring the openings to an enclosed space

Display device for motor vehicles

Liquid crystal indicator, preferably for motor vehicles

An immersion pump, especially for low-boiling fluids, having a support for a shaft and a ferromagnetic impeller wheel mounted to the shaft. The support includes at least one controllable electromagnet that operates to axially support and position the impeller wheel. An outlet path is also provided to enable vapor bubbles within the moving fluid to escape from the pump and be returned to the liquid supply.

Immersion pump, especially for low-boiling fluids

Growing community of inventors

Herzogenaurach, Germany

Werner Wiedemann