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    Variable valve gear device of internal combustion engine
    21.
    发明授权
    Variable valve gear device of internal combustion engine 有权
    内燃机变阀装置

    公开(公告)号：US06401675B1

    公开(公告)日：2002-06-11

    申请号：US09647660

    申请日：2000-10-04

    Applicant: Makoto Nakamura ,  Naoki Okamoto ,  Shinichi Takemura

    Inventor： Makoto Nakamura ,  Naoki Okamoto ,  Shinichi Takemura

    IPC: F01L134

    CPC classification number: F01L13/0063 ,  F01L1/143 ,  F01L1/34 ,  F01L1/34406 ,  F01L13/0021 ,  F01L13/0026 ,  F01L2013/0073 ,  F01L2800/00 ,  F01L2800/05 ,  F02D41/221 ,  Y02T10/40

    Abstract: A variable valve operating system of an internal combustion engine comprises a first variable mechanism 1 capable of variably controlling a lift characteristic of an intake valve 12, and a second variable mechanism 2 capable of variably controlling a valve-open and/or valve-close timing characteristic of the intake valve. The first variable mechanism varies an oscillating position of an oscillating cam 17 via a transmission mechanism 18 by controlling a rotational position of a control shaft 32 by an electric motor 34. On the other hand, the second variable mechanism is constructed to change a phase by axially moving a ring gear 43 by way of hydraulic-pressure supply or release to and from first and second hydraulic pressure chambers 49 and 50 so as to produce relative rotation between a timing sprocket 40 and a drive shaft 13. At the initial state of engine starting, the system operates to drive only the first variable mechanism. Therefore, by using an energy source for the first variable mechanism separated from an energy source for the second variable mechanism, in presence of a failure in one variable mechanism, it is possible to prevent the engine performance from lowering, and also to enhance the engine startability.

    Abstract translation: 内燃机的可变气门操作系统包括能够可变地控制进气门12的升程特性的第一可变机构1和能够可变地控制阀打开和/或闭阀定时的第二可变机构2 进气门特性。 第一可变机构通过由电动机34控制控制轴32的旋转位置，通过变速机构18来改变摆动凸轮17的摆动位置。另一方面，第二可变机构构造成通过 通过对第一和第二液压室49和50的液压供应或释放来轴向移动环形齿轮43，以便在正时链轮40和驱动轴13之间产生相对旋转。在发动机的初始状态 启动时，系统只能驱动第一个可变机制。 因此，通过使用与用于第二可变机构的能量源分离的第一可变机构的能量源，在存在一个可变机构的故障的情况下，可以防止发动机性能下降，并且还可以增强发动机 可启动性。

    CONTROL APPARATUS AND CONTROL METHOD FOR VARIABLE VALVE MECHANISM
    23.
    发明申请
    CONTROL APPARATUS AND CONTROL METHOD FOR VARIABLE VALVE MECHANISM 有权

    公开(公告)号：US20170089226A1

    公开(公告)日：2017-03-30

    申请号：US15126814

    申请日：2014-09-19

    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.

    Inventor： Norihiro ARAYA ,  Hirokazu SHIMIZU

    IPC: F01L1/344 ,  F02D13/02

    CPC classification number: F01L1/3442 ,  F01L2001/34423 ,  F01L2001/34426 ,  F01L2001/3443 ,  F01L2001/34453 ,  F01L2250/04 ,  F01L2800/05 ,  F02D13/0215 ,  F02D13/0238 ,  Y02T10/18

    Abstract: A control apparatus and method for a variable valve mechanism operated by an oil pressure by a variable displacement pump that is capable of varying its capacity. A control apparatus and a control method for a variable valve mechanism, by which deterioration of fuel efficiency and deterioration of operability can be suppressed, is provided. When controlling the variable valve mechanism that is operated by the oil pressure by a variable displacement pump, the control gain of the variable valve mechanism is changed, according to the capacity switching condition or the capacity switching operation of the variable valve mechanism. Driving the variable valve mechanism dependent on an actual hydraulic pressure state is enabled by changing the control gain of the variable valve mechanism in response to switching of the variable displacement pump, so that deterioration of fuel efficiency and operability can be inhibited while suppressing overshoot and response lag.

    Internal-combustion engine having a system for variable actuation of the intake values, provided with three-way solenoid valves, and method for controlling said engine in “single-lift” mode
    25.
    发明授权
    Internal-combustion engine having a system for variable actuation of the intake values, provided with three-way solenoid valves, and method for controlling said engine in “single-lift” mode 有权
    具有用于可变地致动进气阀的系统的内燃机，具有三通电磁阀，以及用于以“单升”模式控制所述发动机的方法

    公开(公告)号：US09441509B2

    公开(公告)日：2016-09-13

    申请号：US14259189

    申请日：2014-04-23

    Applicant: C.R.F. Societa Consortile per Azioni

    Inventor： Sergio Stucchi ,  Raffaele Ricco ,  Onofrio De Michele ,  Marcello Gargano ,  Chiara Altamura ,  Carlo Mazzarella

    IPC: F01L9/02 ,  F01L13/00 ,  F01L1/344

    CPC classification number: F01L13/0015 ,  F01L9/025 ,  F01L13/0005 ,  F01L2001/3443 ,  F01L2800/05

    Abstract: An internal-combustion engine includes a three-way, three-position solenoid valve, having an inlet communicating with a pressurized-fluid chamber and with a hydraulic actuator of an intake valve, and two outlets communicating with an actuator of another intake valve of a cylinder and the exhaust channel. The solenoid valve has a first position, in which the inlet communicates with both outlets, a second position, in which the inlet communicates only with the outlet connected to the actuator of the intake valve and a third position, in which the inlet does not communicate with any of the two outlets. During at least part of an active stroke of a tappet, the solenoid valve is kept in the third position to render the first intake valve active. During the active stroke of the tappet, the solenoid valve is never brought into the second position so that the second intake valve always remains closed.

    Abstract translation: 内燃机包括三通三位置电磁阀，其具有与加压流体室连通的入口和与进气阀的液压致动器连接的两个出口，以及与另一个进气阀的致动器连通的两个出口 气缸和排气通道。 电磁阀具有第一位置，其中入口与两个出口连通，第二位置，其中入口仅与连接到进气门的致动器的出口连通，并且第三位置，入口不连通 与任何两个出口。 在挺杆的主动行程的至少一部分期间，电磁阀保持在第三位置以使第一进气阀起作用。 在挺杆的主动行程期间，电磁阀不会进入第二位置，使得第二进气门总是保持关闭。

    Method for controlling a valve control system with variable valve lift of an internal combustion engine by operating a compensation in response to the deviation of the characteristics of a working fluid with respect to nominal conditions
    27.
    发明授权
    Method for controlling a valve control system with variable valve lift of an internal combustion engine by operating a compensation in response to the deviation of the characteristics of a working fluid with respect to nominal conditions 有权
    用于通过响应于工作流体的特性相对于标称条件的偏差而进行补偿来控制内燃机的可变气门升程的阀控制系统的方法

    公开(公告)号：US08733303B2

    公开(公告)日：2014-05-27

    申请号：US13738276

    申请日：2013-01-10

    Applicant: C.R.F. Societa Consortile Per Azioni

    Inventor： Claudio Lanfranco ,  Mitzi Puccio

    IPC: F01L9/02

    CPC classification number: F01L1/34 ,  F01L9/025 ,  F01L2001/3443 ,  F01L2001/34446 ,  F01L2800/05 ,  Y10T137/7758 ,  Y10T137/7761

    Abstract: A method controls a valve-control system for variable-lift actuation of the valves of an internal-combustion engine, in which the valve-control system includes, for each cylinder of the engine, a solenoid valve for controlling the flow of a hydraulic fluid in the system, and designed manner for determining a real temperature value of the hydraulic fluid. The method includes determining a deviation of performance of the solenoid valves due to a degradation of the characteristics of the hydraulic fluid with respect to nominal values thereof, and substituting for the real temperature value an equivalent temperature value consisting of a temperature value at which the hydraulic fluid having nominal characteristics would produce performance of the solenoid valves corresponding to the performance resulting from the deviation so that each solenoid valve is governed as a function of the equivalent temperature value.

    Abstract translation: 一种方法控制用于内燃机的阀的可变升程致动的阀控制系统，其中阀控制系统包括用于发动机的每个气缸的电磁阀，用于控制液压流体的流动 在系统中，以及用于确定液压流体的实际温度值的设计方式。 该方法包括由于液压流体的特性相对于其标称值的劣化而确定电磁阀性能的偏差，并且将实际温度值替换为等效温度值，该温度值由液压 具有标称特性的流体将产生对应于由偏差产生的性能的电磁阀的性能，使得每个电磁阀被控制为等效温度值的函数。

    VALVE TIMING ADJUSTING DEVICE
    28.
    发明申请
    VALVE TIMING ADJUSTING DEVICE 有权
    阀门定时调整装置

    公开(公告)号：US20140096731A1

    公开(公告)日：2014-04-10

    申请号：US14050693

    申请日：2013-10-10

    Applicant: DENSO CORPORATION

    Inventor： Yuusuke YASUKI ,  Shuhei OE ,  Makoto OTSUBO ,  Taketsugu SASAKI ,  Kuniaki OKA ,  Akira OKADA ,  Takehiro TANAKA

    IPC: F01L1/344

    CPC classification number: F01L1/344 ,  F01L1/3442 ,  F01L2001/34459 ,  F01L2001/34463 ,  F01L2001/34469 ,  F01L2800/02 ,  F01L2800/05 ,  Y02T10/18

    Abstract: A main lock member is fitted in a main lock bore at a main lock phase for closing an intake valve at a timing later than a timing when a piston reaches a bottom dead center, whereby a rotation phase is locked. In a subordinate lock mechanism, the rotation phase is locked at a subordinate lock phase advancing further than the main lock phase. In a lock control mechanism, a temperature sensing body is changed to an expanded state, whereby a moving member is latched at a first position in which the main lock member is allowed to be fitted in the main lock bore, whereas at a main lock phase in a cold stop state after a timing when the temperature of the stopped internal combustion engine becomes less than a preset temperature, the temperature sensing body is changed to a contracted state.

    Abstract translation: 主锁定构件安装在主锁定孔的主锁定位置处，用于在比活塞到达下止点的时刻晚的时刻关闭进气门，从而旋转相位被锁定。 在从属锁定机构中，旋转相位被锁定在比主锁相位进一步前进的从属锁相位。 在锁定控制机构中，温度检测体变为膨胀状态，由此移动构件在允许主锁定构件被配合在主锁定孔中的第一位置处被锁定，而在主锁定阶段 在停止的内燃机的温度变得小于预设温度的定时之后处于冷停止状态，温度检测体变为收缩状态。

    VARIABLE VALVE TIMING DEVICE
    29.
    发明申请
    VARIABLE VALVE TIMING DEVICE 有权
    可变阀门定时装置

    公开(公告)号：US20140069363A1

    公开(公告)日：2014-03-13

    申请号：US14115493

    申请日：2011-05-13

    Applicant: Ichiro Yamaguchi ,  Yuu Yokoyama ,  Haruhito Fujimura

    Inventor： Ichiro Yamaguchi ,  Yuu Yokoyama ,  Haruhito Fujimura

    IPC: F01L1/344

    CPC classification number: F01L1/344 ,  F01L1/3442 ,  F01L2001/34459 ,  F01L2001/34469 ,  F01L2250/02 ,  F01L2800/00 ,  F01L2800/05

    Abstract: In a variable valve timing device, which varies the rotational phase of a camshaft through the relative rotation of a vane rotor and a housing and is provided with a lock mechanism that releases the lock thereof in response to the application of lock-release hydraulic pressure, the crank angle CCA at which the application of lock-release hydraulic pressure is commanded is set variably in accordance with the pressure of the oil supplied for the application so that the lock-release hydraulic pressure rises at a crank angle at which the state of the cam torque becomes suitable for lock-release without relying on changes of time needed for the lock-release hydraulic pressure to raise resulting from oil temperature.

    Abstract translation: 在可变气门正时装置中，其通过叶片转子和壳体的相对旋转来改变凸轮轴的旋转相位，并且设置有锁定机构，其响应于施加锁定释放液压而释放其锁定， 根据为施加供给的油的压力可变地设定施加了释放液压的曲柄角CCA，使得解锁液压在以下状态的曲柄角度上升 凸轮转矩适合于锁定释放，而不依赖于由油温引起的锁定释放液压升高所需的时间变化。

    METHOD FOR CONTROLLING A VALVE CONTROL SYSTEM WITH VARIABLE VALVE LIFT OF AN INTERNAL COMBUSTION ENGINE BY OPERATING A COMPENSATION IN RESPONSE TO THE DEVIATION OF THE CHARACTERISTICS OF A WORKING FLUID WITH RESPECT TO NOMINAL CONDITIONS
    30.
    发明申请
    METHOD FOR CONTROLLING A VALVE CONTROL SYSTEM WITH VARIABLE VALVE LIFT OF AN INTERNAL COMBUSTION ENGINE BY OPERATING A COMPENSATION IN RESPONSE TO THE DEVIATION OF THE CHARACTERISTICS OF A WORKING FLUID WITH RESPECT TO NOMINAL CONDITIONS 有权
    用于控制内燃机可变阀门的控制系统的方法通过对与工作流体相关的特殊条件偏差进行补偿的操作进行调整

    公开(公告)号：US20130284133A1

    公开(公告)日：2013-10-31

    申请号：US13738276

    申请日：2013-01-10

    Applicant: C.R.F. SOCIETA CONSORTILE PER AZIONI

    Inventor： Claudio LANFRANCO ,  Mitzi PUCCIO

    IPC: F01L1/34

    CPC classification number: F01L1/34 ,  F01L9/025 ,  F01L2001/3443 ,  F01L2001/34446 ,  F01L2800/05 ,  Y10T137/7758 ,  Y10T137/7761

    Abstract: A method for controlling a valve-control system for variable-lift actuation of the valves of an internal-combustion engine, wherein the valve-control system comprises, for each cylinder of the engine, a solenoid valve for controlling the flow of a hydraulic fluid in the system, and means configured for determining a real temperature value of said hydraulic fluid.The method includes: determining a deviation of performance of the solenoid valves due to a degradation of the characteristics of said hydraulic fluid with respect to nominal values thereof; and substituting for said real temperature value an equivalent temperature value consisting of a temperature value at which the hydraulic fluid having nominal characteristics would produce performance of the solenoid valves corresponding to the performance resulting from the aforesaid deviation so that each solenoid valve is governed as a function of said equivalent temperature value.

    Abstract translation: 一种用于控制用于内燃机的阀的可变升程致动的阀控制系统的方法，其中所述阀控制系统包括用于每个发动机气缸的电磁阀，用于控制液压流体的流动 以及构造成用于确定所述液压流体的实际温度值的装置。 该方法包括：由于所述液压流体的特性相对于其标称值的劣化，确定电磁阀的性能偏差; 并且用所述实际温度值代替由具有标称特性的液压流体产生对应于由上述偏差产生的性能的电磁阀的性能的温度值组成的等效温度值，使得每个电磁阀被控制为功能 的等效温度值。

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