Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1996-02-07
1997-05-20
Wolfe, Willis R.
Internal-combustion engines
Charge forming device
Fuel injection system
123630, F02P 7067, F02P 1100
Patent
active
056303963
ABSTRACT:
An engine control signal generating apparatus of an internal combustion engine which is capable of performing engine cylinder identification economically, rapidly and easily with high accuracy, while 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 the 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 for each of the engine cylinders, while the second signal series includes cylinder identifying signal pulses. The pulse(s) identifying a specific cylinder or the specific cylinder group differ from those of the other engine cylinders or cylinder groups. The control means (100) includes a means (101) for detecting the reference position signal on the basis of the first signal series, a means (102, 103) for identifying the cylinder group or the cylinder on the basis of at least the second signal series, a means (104) for arithmetically determining control timings for controlling the parameter or parameters on the basis of at least the results of the cylinder identification performed by the cylinder identifying means (103) and the second signal series, and an abnormality decision means (105) for the first signal series.
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Fukui Wataru
Koezuka Yasukazu
Mitsubishi Denki & Kabushiki Kaisha
Wolfe Willis R.
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