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    • 6. 发明公开
    • CONTROL DEVICE OF INTERNAL COMBUSTION ENGINE
    • STEUERVORRICHTUNGFÜREINEN VERBRENNUNGSMOTOR
    • EP2541026A4
    • 2013-12-18
    • EP11747208
    • 2011-02-14
    • HONDA MOTOR CO LTD
    • TSUJI KANTAMITSUI ATSUSHIHARA FUMIO
    • F02D41/06F02D17/00F02D29/02F02D41/00F02D41/02F02D45/00
    • F02D29/02F02D41/009F02D41/062F02D2041/0092F02N11/0814
    • Disclosed is a control device of an internal combustion engine capable of improving emission characteristics of the internal combustion engine at the start-up. When an ECU for engine control controls injection during the exhaust stroke of a port-injection internal combustion engine, first fuel injection is carried out during a period t 1 to t 2 at a fuel-injection timing before actual stroke determination at the engine start-up as shown in, for example, FIG. 12(b) on the basis of a crank angle based on a memory, and the injected fuel is introduced to a cylinder during the actual stroke. If the fuel is not injected during a period of t 1N to t 3N of the subsequent exhaust stroke as indicated by a solid line, the cylinder blows out, and the rotation of the engine cannot be smoothed at the engine start-up. To avoid this, the ECU for engine control performs control such that the fuel injection can be carried out by clearing a flag (F_INJ) indicating completion of fuel injection as indicated by an alternate long and short dash line at a timing t JUD of determining a memory lapse in the crank angle.
    • 公开了一种能够在起动时改善内燃机的排放特性的内燃机的控制装置。 在发动机控制用ECU控制喷射口内燃机的排气行程中的喷射时,在发动机起动时的实际行程判定前的燃料喷射时期的期间t 1〜t 2期间进行第一次燃料喷射, 例如如图1所示。 如图12(b)所示,根据基于存储器的曲轴转角,将喷射的燃料在实际行程中引入气缸。 如果如实线所示,在后续排气冲程的t 1N至t 3N期间内没有喷射燃料,则气缸吹出,并且在发动机起动时不能平滑发动机的旋转。 为了避免这种情况,用于发动机控制的ECU执行控制,使得通过在确定时间t JUD时清除表示完成燃料喷射的标记(F_INJ),如单点划线所示,执行燃料喷射 记忆在曲轴角度的失效。