Evaporative fuel-purging control system for internal combustion

Details Evaporative fuel-purging control system for internal combustion Evaporative fuel-purging control system for internal combustion

1992-06-16

1994-04-05

Miller, Carl S.

Internal-combustion engines

Charge forming device

Having fuel vapor recovery and storage system

123198D, F02M 3302

Patent

active

052995445

ABSTRACT:
An evaporative fuel-purging control system for an internal combustion engine includes at least one flowmeter arranged across a purging passage for outputting a detection parameter indicative of a flow rate of a gaseous mixtured purged through the purging passage, and a purge control valve arranged across the purging passage for controlling the flow rate of the gaseous mixture based on a control parameter indicative of a control amount for the purge control valve. One of the detection parameter and the control parameter is corrected based on a value of the one of the detection parameter and the control parameter assumed when the other of the detection parameter and the control parameter assumes a value corresponding to a state in which the flow rate of the gaseous mixture is equal to the minimum value.

REFERENCES:
patent: 4949695 (1989-07-01), Uranishi
patent: 5139001 (1992-08-01), Tada
patent: 5143040 (1992-09-01), Okawa
patent: 5178117 (1993-01-01), Fujimoto
patent: 5186153 (1993-02-01), Steinbrenner
patent: 5188085 (1993-02-01), Habaguchi

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