Evaporative emission system and method for controlling same

Details Evaporative emission system and method for controlling same Evaporative emission system and method for controlling same

2011-05-17

2011-05-17

Gimie, Mahmoud (Department: 3747)

Internal-combustion engines

Charge forming device

Having fuel vapor recovery and storage system

Reexamination Certificate

active

07942134

ABSTRACT:
A method for controlling an automotive canister purge valve in fluid communication with an evaporative canister includes selecting a purge flow rate of increase for the purge valve based on a hydrocarbon concentration in a fluid stream exiting the evaporative canister, and operating the purge valve based on the selected rate.

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M. James Grieve, et al., Advanced Canister Purge Algorithm with a Virtual [HC] Sensor, Reprinted From: Electronic Engine Controls 2000: Controls (SP-1500), SAE Technical Paper Series, 2000-01-0557, SAE 2000 Wold Congress, Detroit, Michigan Mar. 6-9, 2000.

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