Case Study

Glass cylinder engine

Issues and themes

Optimizing spark plug ignition timing.

It is seen in Plexlogger

By capturing data signals for cylinder pressure at the moment
of spark plug ignition and cylinder TDC and simultaneously
recording piston movement and data signals, it is possible to
check the optimal ignition timing and to conduct an analysis in
order to increase combustion efficiency.

Shooting conditions

Frame rate: 1,600 fps
Captured waveforms
CH1: Piston TDC detection pulse
CH2: Cylinder internal pressure


Data: Courtesy of Nagano National College of Technology

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