Daimler-benz Ag

Mercedes-benz Aktiengesellschaft

Eaton S.a.m.

Klaus Neuffer

Egon Frey

Dieter Feichtiger

Elmar Freitag

Wolfgang Biber

Raimund Leistenschneider

Helmut Grickscheit

Christian Dragoni

Jean P Corbier

A circuit arrangement for an anti-theft alarm for vehicles which emits optical signals to the outside by means of the driving direction indicator lights of the vehicle and also permits driving direction changes to be displayed. Actuation of the indicator lights is cancelled by the anti-theft alarm for the duration of the direction flashing indication.

Circuit arrangement of an anti-theft alarm

A component group of electromagnetically shiftable directional control valves which can be installed in a simple manner includes 2/2- and 3/2-directional control valves preassembled on an electrical printed circuit board and secured in common with the printed circuit board by plugging-in the directional control valves into plug-in receptacles of a base element and by fastening a cover at the base element in the housing formed by the base element and the cover; a pneumatic main channel extends between the base element and the cover which is in fluidic communication with several directional control valves and which is tightly closed off by fastening the cover at the base element.

Component assembly of several directional control valves adapted to be

In a direction indicator and hazard warning device for motor vehicles, a time sequence control is provided, which, during hazard warning operation with a closed driving/ignition switch, allows direction indicator signals to be superimposed and, when the direction indicator signals are switched on, the hazard warning signal to be superimposed. The signal first selected is automatically generated once again after the added signal has been switched off. If, however, the driving/ignition switch is closed with the hazard warning switch and the direction indicator switch closed, the device causes the hazard warning signal to continue to be generated.

Direction indicator and hazard warning device for motor vehicles

A circuit arrangement for the automatic engagement of a motor vehicle hazard warning system in case of impact accidents and emergency braking situations which includes an inertia switch with high response threshold and an acceleration sensor connected in parallel thereto with low response threshold whose output signals each serve for engaging the hazard warning system. The output of the acceleration sensor is connected to an evaluation circuit with an integrator and an threshold switch which prevents that also pulse-shaped output signals of the acceleration sensor lead already to turning on the hazard warning system.

Arrangement for the automatic engagement of a hazard warning system

An installation is provided for increasing the difference in brightness between a pair of lights forming part of a combination light unit, particularly a unit including blinker and position lights for use in motor vehicles, so as to render the lights more easily distinguishable.In a system where a first and a second light are adapted to be switched on and off separately and are arranged in a common housing or in direct proximity of one another, a control element is provided whereby the first light is automatically turned off when the second light is turned on and is again automatically turned on when the second light is turned off.

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Boblingen, Germany

Klaus Neuffer