Control apparatus for internal combustion

Details Control apparatus for internal combustion Control apparatus for internal combustion

1990-09-20

1991-10-08

Nelli, Raymond A.

Internal-combustion engines

Charge forming device

Fuel injection system

36443105, F02M 5502

Patent

active

050544519

ABSTRACT:
A contol apparatus for an internal combustion engine computing basic fuel injection period with an intake pressure and engine speed, computing a correction value from the change rate of the basic fuel injection period, and correcting the basic fuel injection period with the correction value, whereby the fuel injection rate is controlled. In order to prevent an excessive correction with the correction value at the time of rapid acceleration and rapid deceleration, the correction value is computed with the change rate restricted so as not to enlarge or the correction value is computed by multiplying a correction coefficient which is reduced in inverse proportion to the change rate and by the change rate. As a result, an excessive correction can be prevented so that over-rich and over-lean at the time of rapid acceleration and rapid deceleration can be prevented.

REFERENCES:
patent: 4370968 (1983-02-01), Nakatomi
patent: 4424568 (1984-01-01), Nishimura et al.
patent: 4831537 (1989-05-01), Scarnora et al.
patent: 4836169 (1989-06-01), Ishikawa et al.

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