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    ENGINE VALVE TIMING CONTROL APPARATUS
    2.
    发明公开
    ENGINE VALVE TIMING CONTROL APPARATUS 有权
    VORRICHTUNG ZUR REGELUNG EINER MOTORVENTILSTEUERZEIT

    公开(公告)号：EP2743479A1

    公开(公告)日：2014-06-18

    申请号：EP12821480.6

    申请日：2012-07-02

    申请人： Nissan Motor Co., Ltd

    发明人： ITO, Hironori ,  ARIGA, Kenji ,  SHIOZAWA, Ken ,  MIURA, Takahiro ,  KITAMURA, Motomu ,  OSADA, Naoki ,  IRIYAMA, Masahiro ,  ARAI, Masahiro ,  ITOYAMA, Hiroyuki ,  ABE, Hiroshi

    IPC分类号： F02D13/02 ,  F01L1/356 ,  F01L13/00

    CPC分类号： F01L1/34 ,  F01L1/3442 ,  F01L1/356 ,  F01L13/00 ,  F01L2001/34463 ,  F01L2001/34466 ,  F01L2250/04 ,  F01L2760/001 ,  F01L2800/01 ,  F01L2800/03 ,  F02D13/02 ,  F02D13/0215 ,  F02D41/042 ,  F02D2041/001 ,  F02N19/004

    摘要： In order to achieve an intermediate lock state in a short period when an engine is stopped and improve the accuracy of confirmation of the intermediate lock state, an engine valve timing control apparatus includes a variable valve timing mechanism capable of varying valve timing of an intake/exhaust valve, and an intermediate lock mechanism capable of restricting relative rotation positions of a first and a second rotor of the variable valve timing mechanism at an intermediate lock position for starting the engine. When an engine stop request is detected, the variable valve timing mechanism and the intermediate lock mechanism are driven and controlled such that an intermediate lock state is established before the engine is stopped (S12). When the intermediate lock state is detected within a predetermined period from the detection of the engine stop request, or when the predetermined period has expired from the detection of the engine stop request, an engine stopping process is performed (S13 to S16). Even after the engine stopping process is performed, monitoring of the intermediate lock state is continued, until the engine speed is less than a predetermined value NEmin (S17 to S19).

    摘要翻译： 为了在发动机停止时在短时间内实现中间锁定状态，提高中间锁定状态的确认精度，发动机气门正时控制装置包括可变气门正时机构，该可变气门正时机构能够改变进气/ 排气阀和中间锁定机构，其能够将可变气门正时机构的第一和第二转子的相对旋转位置限制在用于起动发动机的中间锁定位置。 当检测到发动机停止请求时，驱动和控制可变气门正时机构和中间锁定机构，使得在发动机停止之前建立中间锁定状态（S12）。 当从检测到发动机停止请求的预定时间内检测到中间锁定状态时，或者当从检测到发动机停止请求到达预定期间时，执行发动机停止处理（S13〜S16）。 即使在执行发动机停止处理之后，继续监视中间锁定状态，直到发动机转速小于预定值NEmin（S17至S19）。