Parametric Analysis of Ignition Circuit Components on Spark Discharge Characteristics

“…15 Figure 2(b) is the acquired electric waveforms to demonstrate the charging and discharging processes of the conventional TCI system. When simply considering the TCI system as a transformer, the primary current (I p ) and discharge current (I s ) can be calculated according to equations (1) and (2) respectively, [30][31][32][33]…”

Section: Single-coil Single Spark Dischargementioning

confidence: 99%

“…The peak discharge current (I s max ) is determined by a number of parameters, including the primary cut-off current (I p max ), the coupling coefficient of the ignition coil (k cp ), and the primary and secondary inductance (L p and L s ), as shown in equation (3). 30,31…”

Section: Single-coil Single Spark Dischargementioning

confidence: 99%

Investigation of multi-event spark discharge strategy for lean methane-air combustion

Zhu

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part D:

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The characterization of the single-coil repetitive discharge and the dual-coil offset discharge was conducted in a constant volume combustion chamber to better understand the operating principle of the multi-event spark ignition strategies. A parametric study of the dual-coil offset discharge was carried out through electric and optical diagnosis to identify the effective operational parameters, including coil working frequency, charging voltage, and coil inductances. Combustion tests under both quiescent and flow conditions with methane-air mixture were performed to demonstrate the ignition capability of the dual-coil offset strategy. Test results have shown that constantly depositing spark energy through offset discharge is beneficial to secure flame kernel. However, the offset discharge strategy requires a high working frequency, an elevated charging voltage, and fast reacting coils to maintain the spark plasma channel under high background pressure and intensified flow conditions.

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“…To this end, there were reviewed works related to the modeling and experimental techniques for the study of the ignition systems and their components. Instrumental in the modeling and the development of the ignition system mockup and instrumentation setup are the works of Maly, 2 Pashley et al, 3 Yu et al, 4 Stevenson et al, 5 Wang et al, 6 and Ro´_ zowicz. 7 For the ignition system of an internal combustion engine, the coil and a switching device are needed to provide an electrical spark to initiate a firing onto the combustion chamber in a controlled manner.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Experimental and numerical approach to assess the dynamic performance of an inductive ignition system

Monroy Jaramillo,

Ramírez Alzate,

Romero Piedrahita

et al. 2024

International Journal of Engine Research

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This paper envisages studying the features of a conventional inductive ignition system along with its MOSFET and IGBT-based transistorized modifications. The influence of mechanical contact breaker dynamics and ignition coil characteristics on the current and voltage waveforms of the primary and secondary circuits of these studied ignition systems are mathematically and experimentally exposed. The investigation is considered necessary prior to attempting subsequent modeling and diagnostics procedures on the current-voltage performance characteristics of conventional and transistorized ignition systems. The work has demanded the development of an experimental setup based on a basic modifiable ignition system mockup and an instrumentation system to measure and analyze the voltage-current parameters of inductive ignition systems. The paper describes the design details of such instrumentation system, presents mechanical and electrical models for contact breaker and ignition circuits, then simulated to obtain base free-run response waveforms and electrical continuity behavior of the contact. A test of frequency response of the ignition coil provided additional input to the model. An experimental test of continuity of the contact, in agreement with its model, shed light on the actual excitation of the primary coil. The work comments on a sample of the registered current and voltage waveforms in primary and secondary coil windings of the ignition system at atmospheric conditions. Comparisons of waveforms and energy for mechanical contact, MOSFET and IGBT switches are made to establish them as a reference for future tests.

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Parametric Analysis of Ignition Circuit Components on Spark Discharge Characteristics

Cited by 11 publications

References 10 publications

Effects of Spark Energy on Spark Plug Fault Recognition in a Spark Ignition Engine

Effects of Spark Energy on Spark Plug Fault Recognition in a Spark Ignition Engine

Investigation of multi-event spark discharge strategy for lean methane-air combustion

Experimental and numerical approach to assess the dynamic performance of an inductive ignition system

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