Abstract
The case study shows the process of emission and engine speed oscillation optimization of the Borgward project with engine G01, GDI, transmission 6AT, and EU5 standards. A series of methods were adopted during the optimization process, including catalyst-heating idle speed, fuel rail pressure, ignition angle, exhaust VVT position, angle injection beginning 1st of suction stroke injection in the HSP during catalyst heating (SOI), end angle of 1st injection in hp2 while catalyst heating (EOI), split factor HP2 injection compression stroke during catalyst heating, the maximum time for active catalyst heating, etc. Finally, the emission result reaches the target, and the engine speed oscillation is optimized.
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