Fuel injection controlling apparatus for internal combustion...

Details Fuel injection controlling apparatus for internal combustion... Fuel injection controlling apparatus for internal combustion...

2008-01-08

2008-01-08

Vo, Hieu T. (Department: 3747)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

C701S110000, C123S350000

Reexamination Certificate

active

07317983

ABSTRACT:
A sensor signal from a speed sensor is inputted into an ECU. The ECU calculates a rotation speed of a crankshaft in a predetermined period based on the sensor signal. The rotation speed is filtered by a frequency which is defined based on a combustion frequency of the engine to obtain a value corresponding to a current torque. The ECU calculates a workload of each cylinder based on the value corresponding to the current torque, and controls characteristic of each cylinder based on the workload.

REFERENCES:
patent: 4715339 (1987-12-01), Sagawa et al.
patent: 6678605 (2004-01-01), Kisaka et al.
patent: 195 27 218 (1996-06-01), None
patent: 6-50077 (1986-03-01), None
patent: 8-218924 (1996-08-01), None
Korean Examination Report issued Jul. 26, 2007 in Application No. 10-2006-0055897 with English translation.
Korean Office Action issued Mar. 28, 2007, and an English translation, issued in corresponding Korean Application No. 10-2006-0055897.

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