Intake device for engine

Abstract

PURPOSE:To prevent exhaust gas from generating in exceeding purifying ability of catalyst in the case of fall in pulifying ability of the same by suppressing intake air volume when temperature of catalyst is lower than a fixed temperature. CONSTITUTION:A control unit 5 controls a throttle valve 3 via an actuator 4 based on detected value of an accel sensor 9 which detects operated quantity of an accel pedal 10. In that case, economy mode, normal mode or power mode is chosen according to a mode setting switch 8. Detected value on a catalyst temperature sensor 7 which detects temperature of catalyst 6 is put in as well to the control unit 5 and when pulifying ability of catalyst is low owing to lower temperature of catalyst than a fixed temperature, choice of power mode is prohibited.

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Patent Citations (2)

    Publication numberPublication dateAssigneeTitle
    JP-S5910752-AJanuary 20, 1984Mazda Motor CorpEngine throttle valve controller
    JP-S6036720-AFebruary 25, 1985Mazda Motor CorpStratified-mixture supplied engine

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Cited By (2)

    Publication numberPublication dateAssigneeTitle
    JP-2009114990-AMay 28, 2009Mitsubishi Electric Corp, 三菱電機株式会社Control device for vehicular engine
    JP-2009138725-AJune 25, 2009Pivot Corp, 株式会社ピボットAccelerator sensor signal conversion equipment