Apparatus for controlling operation timing of internal combustio

Details Apparatus for controlling operation timing of internal combustio Apparatus for controlling operation timing of internal combustio

1996-02-07

1996-12-17

Nelli, Raymond A.

Internal-combustion engines

Charge forming device

Fuel injection system

123417, F02P 500

Patent

active

055842747

ABSTRACT:
An engine control apparatus for an internal combustion engine which is capable of performing engine cylinder identification economically, rapidly and easily with high accuracy, while capable of performing a backup control upon occurrence of abnormality. The control apparatus includes a first signal detector (81) provided in association with a crank shaft (11) for obtaining a first signal series, a second signal detector (82) provided in association with a cam shaft (1) for obtaining a second signal series (SGC) and a control means (100) for controlling parameter (P) involved in operation of the engine on the basis of each signal series. The first signal series includes an angular position signal and a reference position signal (.theta.R) for a specific cylinder group, while the second signal series includes cylinder identifying signal pulses. The pulse identifying a given cylinder differs from those for the other cylinders. The control means (100) includes a means (101) for detecting the reference position signal on the basis of the first signal series, a means (101A) for detecting reference positions for the individual cylinders on the basis of the first signal series, a means (102) for identifying the cylinder group on the basis of the reference position signal, a means (103) for identifying the cylinders on the basis of the second signal series, a means (104) for arithmetically determining control timings for controlling the parameter on the basis of the results of the cylinder identification and the second signal series, and an abnormality decision means (105) for the signal series.

REFERENCES:
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patent: 5329904 (1994-07-01), Kokubo et al.
patent: 5333586 (1994-08-01), Fukui
patent: 5345909 (1994-09-01), Fukui et al.
patent: 5429093 (1995-07-01), Fukui et al.
patent: 5469823 (1995-11-01), Ott et al.
patent: 5487008 (1996-01-01), Ribbens et al.
patent: 5494017 (1996-02-01), Miyata et al.

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