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    • 2. 发明公开
    • METHOD AND APPARATUS FOR CONTROLLING A VARIABLE VALVE SYSTEM
    • 用于控制可变阀系统的方法和设备
    • EP2580451A1
    • 2013-04-17
    • EP11740984.7
    • 2011-06-09
    • TOYOTA JIDOSHA KABUSHIKI KAISHA
    • SHOGENJI, YoshiyukiITO, TokijiTAKIMOTO, FumitoHAYASHI, Kota
    • F02D41/00F02D41/14
    • F01L1/34F01L1/20F01L2800/09F02D41/0002F02D41/2461F02D2041/001Y02T10/42
    • A variable valve timing apparatus for an internal combustion engine, includes an actuator (15) that operates a first variable valve timing mechanism; a detecting portion (35) that detects a driving position of the actuator (15); and a control portion (21) that executes an initialization process only when a preset execution condition is satisfied. In the initialization process, the control portion drives the actuator (15) to one end of a driving range and sets the driving position detected in this state as an initial value, and then drives the actuator (15) to an opposite end of the driving range and reflects an offset amount of the driving position detected in that state with respect to an optimum value in the driving position to compensate for the offset amount. The execution condition includes a condition that an increase amount in acceleration required of the internal combustion engine (1) be equal to or greater than a preset first determining value.
    • 一种用于内燃机的可变气门正时设备,包括:致动器(15),其操作第一可变气门正时机构; 检测部(35),其对所述致动器(15)的驱动位置进行检测; 以及只有当满足预设执行条件时才执行初始化处理的控制部分(21)。 在初始化过程中,控制部分将致动器(15)驱动到驱动范围的一端,并将在该状态下检测到的驱动位置设置为初始值,然后将致动器(15)驱动到驱动的相反端 并且将在该状态下检测到的驾驶位置的偏移量相对于驾驶位置中的最佳值进行反映,以补偿偏移量。 执行条件包括内燃机(1)所需的加速度的增加量等于或大于预设的第一确定值的条件。