CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
    3.
    发明公开
    CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE 审中-公开
    STEUERVORRICHTUNGFÜRVERBRENNUNGSMOTOR

    公开(公告)号:EP1813793A4

    公开(公告)日:2007-12-05

    申请号:EP05787749

    申请日:2005-09-27

    摘要: A control device for an internal combustion engine, capable achieving both excellent driveability and reduction in impact force at the time when a movable section comes into contact with a restriction section. A control device (1) has a variable valve lift mechanism (50) and a variable suction-air-amount mechanism (11). The variable valve lift mechanism (50) has a restriction section (67a) that changes a valve lift (Liftin) and restricts the valve lift (Liftin) so that the valve lift (Liftin) does not exceed a limit lift (Liftin_L) when a movable section (65) is in contact with the restriction section. The variable suction-air-amount mechanism (11) changes the amount of suction air. The control device (1) calculates (step 54) a control input (Uliftin), which is for controlling the variable valve lift mechanism (50), by predetermined algorithm including disturbance suppression parameter (POLE_lf), the control input being calculated so that the valve lift (Liftin) follows a target valve lift (Liftin_cmd). When it is determined that the movable section (65) is in contact with the restriction section (67a), the control device (1) sets (step 73) the disturbance suppression parameter (POLE_lf) so that the degree of suppression, by the disturbance suppression parameter, of influence of disturbance is less than the degree of suppression before the determination.

    摘要翻译: 本发明的内燃机的控制装置在可动部与限制部接触时能够同时实现良好的驱动性和冲击力的降低。 控制装置(1)具有可变气门升程机构(50)和可变吸气量机构(11)。 可变气门升程机构(50)具有改变气门升程(Liftin)并限制气门升程(Liftin)以使得气门升程(Liftin)不超过限制升程(Liftin L L)的限制部分(67a) 当可移动部分(65)与限制部分接触时。 可变吸入空气量机构(11)改变吸入空气量。 控制装置(1)通过包括扰动抑制参数(POLE_lf)的预定算法来计算(步骤54)用于控制可变气门升程机构(50)的控制输入(Uliftin),控制输入被如此计算 气门升程(Liftin)遵循目标气门升程(Liftin low cmd)。 控制装置(1)在判定为可动部(65)与限制部(67a)接触的情况下,将抑制程度设定为(步骤73)干扰抑制参数(POLE< lf) 干扰影响的干扰抑制参数小于判断前的抑制程度。