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    • 2. 发明申请
    • CONTROL APPARATUS AND CONTROL METHOD OF INTERNAL COMBUSTION ENGINE
    • 内燃机控制装置及控制方法
    • WO2008041109A1
    • 2008-04-10
    • PCT/IB2007/002946
    • 2007-10-04
    • TOYOTA JIDOSHA KABUSHIKI KAISHATANAKA, Toshihiko
    • TANAKA, Toshihiko
    • F02D41/02
    • F02D41/0007F02B37/18F02D41/0255Y02T10/144Y02T10/26
    • A control apparatus of an internal combustion engine performs control to warn- up a catalyst. More specifically, the control apparatus keeps a wastegate valve (WGV) open when the temperature of the catalyst is less than a predetermined temperature and closes the wastegate valve (WGV) when the temperature of the catalyst becomes equal to or greater than the predetermined temperature. The control apparatus executes control to increase and decrease the fuel injection quantity such that the internal combustion engine alternately switches between lean burn and rich burn when the wastegate valve is closed. Accordingly, rich gas and lean gas can be reliably mixed in the catalyst, and CO can be reliably combusted in the catalyst. Therefore, the catalyst can be promptly warmed up while CO, HC, and the like can be appropriately suppressed from flowing through the catalyst.
    • 内燃机的控制装置执行用于警告催化剂的​​控制。 更具体地,当催化剂的温度小于预定温度时,控制装置保持废气门阀(WGV)打开,并且当催化剂的温度等于或大于预定温度时,关闭废气门阀(WGV)。 控制装置执行控制以增加和减少燃料喷射量,使得内燃机在废气门关闭时在稀燃和富燃之间交替切换。 因此,在催化剂中可以可靠地混合富气和贫气,并且可以在催化剂中可靠地燃烧CO。 因此,可以适当地抑制CO,HC等流过催化剂而迅速升温催化剂。