2013 DOE Annual Merit Review - ACCESS - Department of Energy
2013 DOE Annual Merit Review - ACCESS - Department of Energy
2013 DOE Annual Merit Review - ACCESS - Department of Energy
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<strong>2013</strong> <strong>DOE</strong> <strong>Annual</strong> <strong>Merit</strong> <strong>Review</strong> – <strong>ACCESS</strong> – Technical Accomplishment<br />
HCCI Combustion: Control Strategy<br />
Torque Structure Air System Fuel System<br />
Driver<br />
Demands<br />
Operating<br />
Coordination<br />
N, M*<br />
BMOD<br />
MFB50*<br />
+<br />
SOI [MR]<br />
+<br />
State Estimator<br />
(Cylinder Individual)<br />
MFB50-EVC FB Controller<br />
(Reference Cylinder)<br />
MFB50-SOI FF Controller<br />
(Cylinder Individual)<br />
MFB50-SOI FB Controller<br />
(Cylinder Individual)<br />
N, pint<br />
φINJ,FF<br />
Exhaust Valve<br />
Controller<br />
+<br />
φINJ,FB<br />
EVC<br />
Combustion Phasing Control<br />
• Mid-R anging C ontrol <strong>of</strong> S OI<br />
and E V C<br />
• Model-B ased F F C ontrol <strong>of</strong><br />
S O I to enable fas t trans itions<br />
• F B C ontrol <strong>of</strong> S OI to enable<br />
MF B 50 balancing<br />
Engine<br />
Torque<br />
Structure<br />
λ* Wcyl,air<br />
NMEP*<br />
+<br />
NMEP FF Controller<br />
(Reference Cylinder)<br />
NMEP FB Controller<br />
(Cylinder Individual)<br />
WINJ,FF<br />
WINJ,FB<br />
+<br />
Injector<br />
Controller<br />
φINJ<br />
ΔtINJ<br />
ENGINE<br />
Torque Control<br />
• F B C ontrol <strong>of</strong> fuel quantity to<br />
enable NME P balancing<br />
Reference Cylinder<br />
Identificaiton<br />
NMEP<br />
MFB50<br />
Combustion<br />
Feature<br />
Calculation<br />
pcyl<br />
Cylinder Pressure Sensing<br />
• E CU integrated real-time<br />
calculation <strong>of</strong> MFB 50, NME P<br />
Model-based control to enable fast and robust HCCI transitions<br />
22<br />
Gasoline S ystems | 5/17/<strong>2013</strong> | © <strong>2013</strong> R obert Bosch LLC and affiliates. All rights reserved.
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