Fuel injection controller and diagnosis method of fuel...

Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – With indicator or control of power plant

Reexamination Certificate

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Details

C701S104000, C701S105000, C123S1980DB

Reexamination Certificate

active

08010277

ABSTRACT:
A fuel injection controller (incorporated in an engine control ECU) for controlling an injection operation of an injector has a program for executing injections in plural injection patterns including an injection pattern of a multiple injection in a certain order into a certain cylinder of the engine during non-injection operation and a program for obtaining sums of fluctuation degrees of an engine operating condition due to all the injections in a first injection unit composed of one (single stage injection) of the plural patterns and all the injections in a second injection unit composed of a different one (multiple injection of two stages) of the plural patterns which are executed by the former program, with an injection condition (cylinder number and data number N).

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