| 摘要 |
PCT No. PCT/DE91/00914 Sec. 371 Date May 20, 1993 Sec. 102(e) Date May 20, 1993 PCT Filed Nov. 21, 1991 PCT Pub. No. WO92/10674 PCT Pub. Date Jun. 25, 1992.A device is provided for detecting high-voltage characteristics in an ignition system having at least two ignition coils. The device includes a plurality of first capacitive signal couplers each being disposed on a respective one of the ignition coils for capacitively extracting a voltage signal from the ignition coil. A circuit arrangement is connected to the plurality of first capacitive signal couplers and includes an output, and a signal combiner for combining the voltage signals extracted from the ignition coils and producing a combined voltage signal at the output. A plurality of second capacitive signal couplers each connected between the signal combiner and a respective one of the first capacitive signal coupler provides for potential isolation between the plurality of first capacitive signal couplers and a further portion of the circuit arrangement. |
