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US 2014/0005912 A1Published application
Control apparatus for an engine
AssigneeMitsubishi Jidosha Kogyo Kabushiki Kaisha
InventorsHideto IDE, Katsunori UEDA, Toshiyuki MIYATA
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AssigneeMitsubishi Jidosha Kogyo Kabushiki Kaisha
InventorsHideto IDE, Katsunori UEDA, Toshiyuki MIYATA
Estimating the term…
A control apparatus for an engine introduces purge gas containing fuel gas evaporated from a fuel tank into an intake system includes an air-fuel ratio calculation unit that calculates an air-fuel ratio (AF) of the engine, and a purge rate calculation unit that calculates a purge rate (RPRG) corresponding to an introduction rate of the purge gas. The control apparatus further includes a concentration calculation unit that calculates a concentration (KAF—PRG) of the purge gas based on the air-fuel ratio (AF) calculated by the air-fuel ratio calculation unit and the purge rate (RPRG) calculated by the purge rate calculation unit. A decision unit permits or inhibits the concentration calculation unit to calculate the concentration (KAF—PRG) based on the purge rate (RPRG) calculated by the purge rate calculation unit. The estimation accuracy of the concentration (KAF—PRG) of purge gas is improved.
A control apparatus for an engine that introduces purge gas containing fuel gas evaporated from a fuel tank into an intake system, comprising:
Dependencies are inferred from the claim text.