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    METHOD AND APPARATUS FOR COMBINED EXHAUST AND COMPRESSION RELEASE ENGINE BRAKING
    1.
    发明公开
    METHOD AND APPARATUS FOR COMBINED EXHAUST AND COMPRESSION RELEASE ENGINE BRAKING 审中-公开

    公开(公告)号：EP3344861A1

    公开(公告)日：2018-07-11

    申请号：EP16842958.7

    申请日：2016-09-01

    申请人： Jacobs Vehicle Systems, Inc.

    发明人： ALEXANDRU, Matei

    IPC分类号： F02D13/04 ,  F02D13/02 ,  F01L13/00

    CPC分类号： F02D9/06 ,  F01L13/065 ,  F01L2800/00 ,  F02D13/04 ,  F02D41/221 ,  Y02T10/40

    摘要： A controller of an internal combustion engine receives a request for engine braking and, in response thereto, activates an exhaust braking subsystem. Additionally, after passage of a period of time, the controller further activates a compression release braking subsystem. The period of time is preferably selected to permit development of increased back pressure in an exhaust system of the internal combustion engine prior to activation of the compression release braking subsystem. Additionally, following activation of the exhaust braking subsystem, the controller may whether the exhaust braking subsystem has failed and, if so, cause the compression release braking subsystem to operate in a reduced braking power mode, for example at less than full braking power potentially down to and including no braking power.

    VALVE OPEN/CLOSE PERIOD CONTROL DEVICE
    2.
    发明公开
    VALVE OPEN/CLOSE PERIOD CONTROL DEVICE 审中-公开

    公开(公告)号：EP3276132A4

    公开(公告)日：2018-04-11

    申请号：EP15886449

    申请日：2015-09-25

    申请人： AISIN SEIKI

    发明人： AMANO HIROYUKI ,  KOBAYASHI MASAKI ,  YAMAKAWA YOSHIAKI

    IPC分类号： F01L1/356 ,  F01L1/344 ,  F16K31/06

    CPC分类号： F01L1/356 ,  F01L1/3442 ,  F01L2001/3443 ,  F01L2800/00 ,  F01L2800/01 ,  F01L2800/09 ,  F16K31/06 ,  F16K31/105

    摘要： A valve opening and closing timing control apparatus includes a drive-side rotational body, a driven-side rotational body, an intermediate lock mechanism which selectively switches between a lock state where displacement of a relative rotational phase of the driven-side rotational body relative to the drive-side rotational body is restrained in an intermediate lock phase and an unlock state where the lock state is released, and an electromagnetic valve at which a position of a spool is changed when a drive current applied to a drive source changes, and operating oil is selectively supplied or discharged such that the relative rotational phase is displaced in an advanced-angle direction or a retarded-angle direction. At a time of predetermined operation of an internal combustion engine, a value of the drive current is set as a boundary current, and the value of the drive current to be set as the boundary current differs, by a predetermined value, from a value of the drive current at a time when the unlock state was switched to the lock state due to the change of the drive current.