Ignition and knocking measurement device

Abstract

Abstract An electronic ignition device with knock measuring device and control comprises a control device (5) for adjusting the ignition angle and a subsequent ignition transformer (8). The problem of electronically measuring the knocking is solved. A sensing line (12) for detecting ignition voltage and/ignition current is connected to the ignition transformer (8). To evaluate the signals of the sensing line (12), a time discriminator (15) is provided which is triggered by the respective ignition pulse and gates a measuring window (17) out of the measurement signal in accordance with the uniform variation of the ignition spark. The time discriminator (15) is followed by a measurement discriminator (19, 21, 24, 27) for evaluating the signal gated out in the measuring window (17). An adjustment pulse transmitter (30) outputs an adjusting pulse for the ignition angle to the control device (5) on the basis of a discriminator output signal. <IMAGE>

Inventors

• 👤 Burkhard Brandner
• 👤 Manfred Knüfelmann
• 👤 Reinhold Blauhut

Bibliographic Details