Operating method for actuator with capacitive element used for fuel injector for automobile IC engine with function monitoring of parallel resistor

• Main Authors: RUEGER, JOHANNES-JOERG, HUBER, ANDREAS, KNICKER, RAINER, SCHULZ, UDO
• Format: Patent
• Language: English; German
• Published: 26.02.2004
• Edition: 7
• Subjects: BLASTING; COMBUSTION ENGINES; CONTROLLING COMBUSTION ENGINES; ELECTRICITY; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; WEAPONS

The operating method has an ohmic resistor connected in parallel across the capacitive element of the actuator e.g. a piezoactuator (28), the value of the ohmic resistor used for determining the timing point, the correct function of the ohmic resistor monitored for provision of a fault signal by mon...