Fuel-injection-timing adapting method and apparatus for...

Details Fuel-injection-timing adapting method and apparatus for... Fuel-injection-timing adapting method and apparatus for...

2011-03-01

2011-03-01

Kwon, John T (Department: 3747)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

C123S294000, C123S305000

Reexamination Certificate

active

07899604

ABSTRACT:
A computer simulates a relationship between a fuel-rate of fuel which collides with the cavity of the piston and the fuel injection timing, and/or the relationship between the fuel-rate of fuel which collide with the cylinder inner wall and the fuel injection timing. A range of the fuel injection timing in which the combustion state is stable is computed based on the simulation results. This range of fuel injection timing may be defined as the measuring range in which the measure points are arranged. Furthermore, the fuel injection timing is varied gradually around an upper and lower limit values of the measuring range and the engine torque is measured. The measuring range is corrected so that the combustion state becomes stable.

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