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Delphi Multi-Charge Ignition

Delphi Multi-Charge Ignition
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POWERTRAIN SYSTEMS Delphi Multi-Charge Ignition Delphi Multi-Charge Ignition is an ignition control feature that fires a specially designed coil multiple times to extend spark duration and increase spark energy. It is designed to support the industry's newest advanced lean burn and stratified gasoline direct injection (GDi) engine programs. With Delphi's Multi-Charge Ignition, the initial spark is followed by several additional sparks to ensure igniting the fuel-air mixture under challenging operating conditions, such as high exhaust gas recirculation (EGR) levels and lean fuel mixtures. The very fast consecutive spark events enable ignition to occur at the desired spark timing. This results in optimal combustion and helps achieve significantly improved fuel economy and reduced emissions. Delphi can apply the feature to various ignition coil designs to accommodate customer requirements for coil-per-cylinder applications including: • • • Plug top coils Coil-near-plug Pencil coils Delphi Plug Top Ignition Coil with Multi-Charge Enables spray guided GDi engines to achieve up to 20% better fuel economy and very low engine-out emissions — virtually no soot or particulate emissions Helps achieve leaner injection with more dilution and EGR for enhanced engine performance Current-controlled ignition defines coil charge at the time of refiring to optimize combustion Long burn time eliminates misfire Interface is compatible with a standard engine control unit Cost effective solution for reliable combustion in spray guided GDi engine applications Typical Applications Delphi Multi-Charge Ignition is designed especially for use with advanced spray guided gasoline direct injection engines and other sophisticated gasoline engines that operate on highly diluted fuel-air mixtures. The number of cylinders in the engine program does not restrict the range of Multi-Charge Ignition applications. Delphi Multi-Charge Ignition is compatible with ethanol-blend fuel systems. www.delphi.com | © Delphi. All rights reserved. | Delphi Multi-Charge Ignition fires the ignition coil several times to extend spark duration and increase spark energy.

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Delphi Multi-Charge Ignition Technical Specifications Breakdown voltage Total energy Total energy @ cranking speed U z, max > 40 kV E total = f (1/min) E total (200/min) < 800 mJ @ 20 ms E total (1,000/min) < 250 mJ @ 6.5 ms E total (2,000/min) < 130 mJ @ 3.3 ms Performance Advantages Delphi Multi-Charge Ignition provides a more reliable solution for achieving optimal combustion in spray guided gasoline direct injection engine programs compared with competitive time-controlled multiple spark ignition systems. With the Delphi Multi-Charge concept, each spark is extended further into the...

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