Hartig ignition
The Hartig ignition , also known as “Dr. Hartig ignition "called, was a contactless and digitally controlled ignition timing control for automobiles. The ignition system was invented in 1973 by the German physicist Gunter Hartig and installed in small series of motorcycles and vehicles from 1976 to 1981.
The ignition timing control worked without mechanical transmission elements. The centerpiece was a toothed disc mounted on the crankshaft , which triggered electrical impulses through an electronic scanner. The generated impulses were compared with a given ignition advance curve and control signals for the ignition distribution per spark plug were generated based on the speed. To measure the air volume, a sender was mounted on the throttle valve of the carburetor or the injection system, the signal of which was evaluated for the control.
The advantage of the contactless Hartig ignition was the more precise ignition timing, as no mechanical inaccuracies caused by component wear impaired the control. According to Hartig, the ignition control was “completely maintenance-free, insensitive to temperature and aging”.
The Van Veen OCR 1000 motorcycle equipped with a rotary engine was the first model to receive this ignition system. From 1978 the car manufacturer Alpina used the Hartig ignition in its model Alpina B7 Turbo .
For the small series of the 924 Carrera GT , Porsche also used the digital ignition timing control, which increased the engine's performance and kept consumption low.
Individual evidence
- ↑ a b Der Spiegel Magazin, Issue No. 11 from 1973, p. 145.
- ↑ Der Spiegel Magazin, issue no. 38 from 1978, p. 256 ff.
- ↑ Werk924.com - Internet site: Information on the Porsche 924 Carrera GT. From: www.werk924.com , accessed July 13, 2012 .