Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1994-05-04
1995-06-27
Dolinar, Andrew M.
Internal-combustion engines
Charge forming device
Fuel injection system
123493, F02D 4112
Patent
active
054270715
ABSTRACT:
A method of catalyst purging (run-time) fuel lean-out for an internal combustion engine including the steps of determining whether the engine is in a throttle deceleration condition or a MAP deceleration condition, sensing a speed of the engine, determining whether the current sensed engine speed is above a predetermined speed if the engine is in a throttle or MAP deceleration condition, determining a magnitude of a run-time lean-out multiplier (RTLEAN) value if the current sensed engine speed is above the predetermined speed, and applying the determined RTLEAN value to a fuel pulsewidth value of fuel injectors for the engine and reducing the amount of fuel injected into the engine by the fuel injectors.
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Tallarek Glen E.
Thomas Christopher P.
Vincent Michael T.
Weber Gregory T.
Chrysler Corporation
Dolinar Andrew M.
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