Method of correcting engine maps based on engine temperature

Details Method of correcting engine maps based on engine temperature Method of correcting engine maps based on engine temperature

1995-11-13

1996-12-24

Moulis, Thomas N.

Internal-combustion engines

Charge forming device

Fuel injection system

123381, F02M 3704, F02M 700

Patent

active

055865380

ABSTRACT:
In one aspect of the present invention, a method for correcting an engine map for use in an electronic control system that regulates the quantity of fuel that a hydraulically-actuated injector dispenses into an engine. The engine map stores a plurality of engine operating curves. The method modifies at least one of the engine operating curves in response to the engine temperature, which is indicative of the temperature of the actuating fluid used to hydraulically actuate the injector. Consequently, the engine map curves are corrected to compensate for changing engine temperatures to insure that the hydraulically-actuated fuel injectors dispense a desired quantity of fuel.

REFERENCES:
patent: 5121730 (1992-06-01), Ausman et al.
patent: 5181494 (1993-01-01), Ausman et al.
patent: 5357912 (1994-10-01), Barnes et al.
patent: 5423302 (1995-06-01), Glassey
patent: 5445129 (1995-08-01), Barnes

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