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:
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Plug top coils
Coil-near-plug
Pencil coils

Delphi Plug Top Ignition Coil with Multi-Charge

Benefits
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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.

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Delphi Multi-Charge Ignition fires the ignition
coil several times to extend spark duration and
increase spark energy.

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