DISPOSITIF POUR CONTROLER AU MOINS DEUX EQUIPEMENTS UTILISANT L'ENERGIE ELECTRIQUE DANS DES VEHICULES AUTOMOBILES, NOTAMMENT DES BOUGIES A INCANDESCENCE DANS DES MOTEURS A COMBUSTION INTERNE A AUTO-ALLUMAGE

PURPOSE: To detect a short-circuit of a load, a breaking of wire and each resistance value without being affected by a length of a lead wire if the load by connecting a source of a test signal with a connecting point of an inductance element and the load through a resistance respectively. CONSTITUTI...

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Bibliographische Detailangaben
Hauptverfasser:	HANNES PFLUG, PETER SCHMIDT, WOLF WESSEL, PETER NORDHAUS, BRIGITTE ARNOLD
Format:	Patent
Sprache:	fre
Schlagworte:	BLASTING COMBUSTION ENGINES CONTROLLING COMBUSTION ENGINES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS IGNITION, OTHER THAN COMPRESSION IGNITION, FORINTERNAL-COMBUSTION ENGINES LIGHTING MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES MECHANICAL ENGINEERING PERFORMING OPERATIONS PHYSICS TESTING TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES TRANSPORTING VEHICLES IN GENERAL VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR WEAPONS
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Beschreibung
Zusammenfassung:	PURPOSE: To detect a short-circuit of a load, a breaking of wire and each resistance value without being affected by a length of a lead wire if the load by connecting a source of a test signal with a connecting point of an inductance element and the load through a resistance respectively. CONSTITUTION: A switching transistor 5 as a source of test signal is connected with an connecting point 1 of all of inductance elements L through a resistance RV. When a detection of a glow plug, a predetermined voltage is generated from a voltage divider which consists of a resistance RL between a connecting point 3 and a ground and a resistance RK of the glow plug just after a switch S is released, then a voltage pulse is added to a switching transistor 5. The voltage is detected by a glow plug observer 7 and compared with a voltage which is made by a voltage divider which consists of a resistance R1, R2. When the predetermined voltage is different from a measured voltage, an error signal is output from the glow plug observer 7. Thereby, an accuracy of a detection of a signal can be improved by using the inductance element L.