US Patent 11698014 Flow estimation for secondary air system
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US Patent 11698014 Flow estimation for secondary air system
Article
Methods and systems using model based and iterative calculations of mass flow throughout an internal combustion engine system. A secondary air injection valve is provided to selectively allow intake air to pass to the exhaust side of the engine system to aid in exothermic reaction with exhaust gasses exiting the engine for various purposes. The iterative calculations of mass flow include estimation of the mass flow through the secondary air injection valve.
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Patent Jurisdiction
Patent Number
116980140
Date of Patent
July 11, 2023
0Patent Application Number
178696330
Date Filed
July 20, 2022
0Patent Citations
Patent Primary Examiner
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