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Monitoring Internal Combustion Engines by Neural Network Based Virtual Sensing
Published in Lakhmi Jain, Anna Maria Fanelli, Recent Advances in Artificial Neural Networks, 2000
R.J. Howlett, M.M. de Zoysa, S.D. Walters
Figure 2 shows the essential elements of an inductive-discharge ignition-system, as typically installed in a spark-ignition engine. The ignition-coil is essentially a high-voltage transformer, increasing the battery voltage (approximately 12V) to an extra high tension (EHT) pulse. This high voltage creates a spark between the contacts of the spark plug and initiates combustion. The contact-breaker was once a mechanical component in almost all engines, but in modern electronic ignition systems, it is replaced by a semiconductor switch such as an automotive specification transistor or thyristor.
Electromagnetic induction
Published in Adrian Waygood, An Introduction to Electrical Science, 2013
The ignition coil is the term applied to an autotransformer used to step-up the 12-V d.c. battery supply to the thousands of volts required by the vehicle’s spark plugs. In order to provide the changing-current in the primary coil, necessary to induce the high-voltage into the secondary coil (which has many more turns than the primary coil), the primary circuit is continually switched on and off by a rotary switch, mechanically-driven by the vehicle’s engine or, these days, by electronic switching.
Vehicular Engines
Published in G. K. Awari, V. S. Kumbhar, R. B. Tirpude, Automotive Systems, 2021
G. K. Awari, V. S. Kumbhar, R. B. Tirpude
Ignition system: The ignition system generates the sparks necessary for the ignition of the air–fuel mixture. The optimal ignition timing is calculated by the ECU engine according to each driving condition. The ignition signal is then sent to the ignition coil (stick coil). The ignition coil generates a high voltage based on the ignition signal. This high voltage is then applied to the ignition plug electrodes, which generate ignition and cause the air–fuel mixture to burn within the cylinders.
Ignition Diagnostics in EGR- and Air-diluted Methane/Air Mixtures Using Spark Induced Breakdown Spectroscopy
Published in Combustion Science and Technology, 2022
Laura Merotto, Thomas Kammermann, Patrik Soltic
The INSIDE experimental setup used for the present work was developed for spectral and temporally resolved measurements, and is described in detail in (Kammermann et al. 2018, 2018). A sketch of the setup is shown in Figure 1. A constant volume ignition cell, designed for optical investigation of light spectral emissions from sparks in homogeneous quiescent mixtures, is coupled with a Princeton Instruments spectrograph (Acton IsoPlane SCT 320). The cell is equipped with pneumatically actuated in- and outlet-valves, an absolute pressure sensor (Keller PAA-33X) for the control of the filling process and with a piezoelectric pressure transducer (Kistler 6052C) to measure the transient in-cell pressure. Gas supply was controlled via mass flow controllers (Bronkhorst). The ignition is based on a commercially available capacitive discharge ignition coil (MoTeC 41013), providing 115 MJ of secondary energy with a maximum ignition frequency of 1000 Hz and coil primary voltage of 460 V. A commercially available M8 thread spark plug (NGK CR8EIX) with electrode gap of 0.8 mm is used. Current and voltage signals are captured through an oscilloscope with 1 GHz bandwidth (LeCroy Wavesurfer 10).
Exploration of carbon deposit on spark plug of stratified charged gasoline direct injection engine
Published in International Journal of Ambient Energy, 2020
B. Prem Anand, S. Prasanna Raj Yadav, S. R. Dhanadevi, P. Kanimozhi, T. Pavadharani
A spark plug was fitted in the place of diesel injector and an ignition coil named coil on the plug was mounted on the cylinder body. A GDI injector was side-mounted on the cylinder head with an attachment. The spark plug and injector was connected to the digital output module for ignition and injection timing of the engine. Other peripherals, such as sensors and crank angle (CA) encoder, were also connected with ECU system. The test engine was also provided with accessibility to combustion and emission measurement. The specification of the test engine is shown in Table 1.
Determination of Unstretched Laminar Burning Velocity by Simultaneous Measurements of Flame Radius and Pressure-Time Trace Using Constant Volume Method
Published in Combustion Science and Technology, 2023
Vikas Jangir, Anjan Ray, M. R. Ravi
A variable energy spark ignition system is used to produce a spark between electrodes. The variable energy spark ignition system is used to ensure that no extra energy is dumped into the chamber by controlling the charging time of the inductor in the ignition coil. This allows mixtures of varying equivalence ratios to be tested, since the Minimum Ignition Energy (MIE) varies with the strength of the mixture. The high-speed camera is triggered simultaneously with the variable spark energy system, so as to capture the combustion event starting at the time of the spark.