Daimler-benz Ag

Mercedes-benz Aktiengesellschaft

Wolfgang Hilpert

Manfred Stotz

Gerhard Komander

A control arrangement for an auxiliary heater in motor vehicles is provided which consists of a preselection clock, a control unit and a control apparatus which are all arranged inside the vehicle, in which case the auxiliary heater can be time-programmed by way of the preselection clock. A time generator is used which generates a time signal representing the actual time and whose time signal is supplied to the preselection clock as well as to a time display arranged in the vehicle, and in the case of which the time programming is carried out via a portable transmitter.

Control arrangement for an auxiliary heater in motor vehicles

A device for detecting a trailer coupled onto a tractor vehicle which, incorporates the rear or brake or license plate illuminating lights of the trailer and by corresponding combination of the signals applied at a logic element, an output signal for triggering the indication 'trailer coupled' is achieved.

Device for detecting a trailer coupled onto a tractor vehicle

A preliminary heating control installation for air-compressing internal combustion engines, especially in motor vehicles, with a device for the control of the preliminary heating time as a function of engine temperature and of a time limit, with a relay whose energizing winding is connected in the heating circuit and whose contact controls an indicating lamp, and with an additional circuit that detects the failure of at least one or several heater plugs and renders this defect visible by engagement of the indicating lamp during the duration of the starting operation or therebeyond.

Preliminary heating control installation for air-compressing internal

An installation for the continuous measurement of the fuel consumption of internal combustion engines, in which a fuel-metering member predetermining with its position the through-put fuel quantity as a function of displacement. A preferably electrical displacement pick-up is coupled with the fuel-metering member which produces an analog signal corresponding to the deflection of the fuel-metering member from its normal position while an instrument for the indication of the signal is arranged within the field of vision of the operating person.

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Stuttgart, Germany

Wolfgang Hilpert