Internal-combustion engines – Charge forming device – Having fuel vapor recovery and storage system
Patent
1992-04-30
1993-11-23
Wolfe, Willis R.
Internal-combustion engines
Charge forming device
Having fuel vapor recovery and storage system
123458, F62M 2900
Patent
active
052634604
ABSTRACT:
A method of controlling a purge solenoid for a purge control system of an internal combustion engine is provided. The method includes the steps of determining whether predetermined conditions are right for duty cycling the purge solenoid and turning the purge solenoid OFF if predetermined conditions are not right and obtaining a duty cycle for the purge solenoid based on a duty cycle flow (DCFLOW) if predetermined conditions are right. The method also includes the steps of determining an output level of the purge solenoid based on the obtained duty cycle and controlling the purge solenoid to the obtained duty cycle.
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Baxter Claude J.
Blomquist William B.
Cichon Cynthia H.
Richardson Roland T.
Calcaterra Mark P.
Chrysler Corporation
Morris Thomas N.
Wolfe Willis R.
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