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    Diagnostic system for variable valve timing control system
    31.
    发明授权
    Diagnostic system for variable valve timing control system 有权
    可变气门正时控制系统诊断系统

    公开(公告)号：US08286472B2

    公开(公告)日：2012-10-16

    申请号：US12786952

    申请日：2010-05-25

    Applicant: Hiroshi Katsurahara

    Inventor： Hiroshi Katsurahara

    IPC: G01M15/04

    CPC classification number: F01L1/344 ,  F01L13/0015 ,  F01L2001/0537 ,  F01L2800/05 ,  F01L2800/11 ,  F01L2810/02 ,  F01M2011/148 ,  F02D13/02 ,  F02D19/084 ,  F02D19/087 ,  F02D41/0025 ,  F02D41/22 ,  F02D2200/0611 ,  F02D2250/11 ,  Y02T10/18 ,  Y02T10/36 ,  Y02T10/40

    Abstract: A fuel diluting quantity is estimated based on an alcohol concentration of the fuel. A response-deterioration determination value is corrected according to the estimated fuel diluting quantity. The response-deterioration determination value can be properly established even though the responsiveness of the variable valve timing controller is varied due to a variation in viscosity of the lubricant. Thereby, even when the responsiveness of the variable valve timing controller is varied (deteriorated) due to an increase in the fuel diluting quantity, it can be avoided that the computer determines that the variable valve timing controller has a defect.

    Abstract translation: 基于燃料的酒精浓度来估计燃料稀释量。 根据估计的燃料稀释量来校正响应劣化判定值。 即使可变气门正时控制器的响应性由于润滑剂的粘度变化而变化，也可以适当地建立响应劣化判定值。 因此，即使由于燃料稀释量的增加而导致可变气门正时控制器的响应性变差（恶化），也可以避免计算机判定可变气门正时控制器有缺陷。

    VARIABLE VALVE TIMING CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE
    32.
    发明申请
    VARIABLE VALVE TIMING CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE 有权
    用于内燃机的可变阀定时控制装置

    公开(公告)号：US20100288215A1

    公开(公告)日：2010-11-18

    申请号：US12777746

    申请日：2010-05-11

    Applicant: Yuichi TAKEMURA ,  Minoru WADA

    Inventor： Yuichi TAKEMURA ,  Minoru WADA

    IPC: F01L1/34

    CPC classification number: F01L1/3442 ,  F01L2001/34426 ,  F01L2001/34463 ,  F01L2800/01 ,  F01L2800/03 ,  F01L2800/05

    Abstract: In a variable valve timing control apparatus, a hydraulic variable valve timing device adjusts valve timing by changing a VCT phase. In a lock mode, the lock pin is allowed to be displaced in a lock direction for locking the VCT phase, and the VCT phase is slightly shifted in a lock-mode VCT phase shift direction corresponding to one of an advance direction and a retard direction. A lock control unit shifts the VCT phase in a direction opposite from the VCT phase shift direction if the VCT phase is located on a lock-mode VCT phase shift direction side of the intermediate lock position when the engine becomes equal to or less than a first rotational speed, and otherwise the lock control unit allows the lock pin to be displaced in the lock direction.

    Abstract translation: 在可变气门正时控制装置中，液压可变气门正时装置通过改变VCT相位来调节气门正时。 在锁定模式下，锁定销被允许在锁定方向上移位以锁定VCT相位，并且VCT相位在对应于前进方向和延迟方向之一的锁定模式VCT相移方向上稍微移动 。 如果VCT相位在中间锁定位置的锁定模式VCT相移方向侧，则发动机变为等于或小于第一位置时，锁定控制单元将VCT相位沿VCT相移方向相反的方向移动 旋转速度，否则锁定控制单元允许锁定销在锁定方向上移位。

    VALVE TIMING CONTROLLER FOR INTERNAL COMBUSTION ENGINE
    34.
    发明申请
    VALVE TIMING CONTROLLER FOR INTERNAL COMBUSTION ENGINE 有权
    内燃机用时间控制器

    公开(公告)号：US20100242880A1

    公开(公告)日：2010-09-30

    申请号：US12683003

    申请日：2010-01-06

    Applicant: Shinji Watanabe ,  Akira Furuta

    Inventor： Shinji Watanabe ,  Akira Furuta

    IPC: F01L1/34 ,  F02D41/00

    CPC classification number: F02D13/0219 ,  F01L1/024 ,  F01L1/344 ,  F01L1/3442 ,  F01L2001/0537 ,  F01L2001/34426 ,  F01L2001/3443 ,  F01L2800/00 ,  F01L2800/05 ,  F01L2820/041 ,  F01L2820/042 ,  F02D41/0002 ,  F02D41/20 ,  F02D2041/2048 ,  Y02T10/18

    Abstract: The valve timing controller for the internal combustion engine determines, based on a control parameter during phase angle feedback control, whether or not the valve timing variable mechanism is pressed against a limiting position defined by a stopper, sets a second target phase angle on a reference rotational phase angle value side of the camshaft by a first predetermined value from a detected real phase angle value of the camshaft when the stopper pressing determination means determines that the valve timing variable mechanism is pressed against the limiting position defined by the stopper, and switches a target phase angle during the phase angle feedback control from the first target phase angle to the second target phase angle.

    Abstract translation: 用于内燃机的气门正时控制器基于相位角反馈控制期间的控制参数，确定气门正时可变机构是否被限制器所限定的极限位置按压，将第二目标相位角设置在基准 当所述止动器按压确定装置确定所述气门正时可变机构被所述止动器限定的限制位置压紧时，所述凸轮轴的转动相位角值侧与所述凸轮轴的检测到的实际相位角值相对应的第一预定值， 在从第一目标相位角到第二目标相位角的相位角反馈控制期间的目标相位角。

    Two-step oil control valve failure diagnostic
    35.
    发明授权
    Two-step oil control valve failure diagnostic 有权
    两步油控阀故障诊断

    公开(公告)号：US07783413B2

    公开(公告)日：2010-08-24

    申请号：US12041159

    申请日：2008-03-03

    Applicant: Kenneth J. Cinpinski ,  Donovan L. Dibble

    Inventor： Kenneth J. Cinpinski ,  Donovan L. Dibble

    IPC: F01L9/04 ,  F01L9/02 ,  G05D1/00

    CPC classification number: F01L1/34 ,  F01L2800/05 ,  F01L2800/11 ,  F02D41/221 ,  F02D2041/001 ,  F02D2041/2027

    Abstract: A method may include commanding operation of an engine in a first lift mode. The engine may include a valve lifter system that selectively operates a valve member in the first lift mode and a second lift mode through engagement with a camshaft. A first duty cycle of a cam phaser oil control valve (OCV) may be determined to maintain a first camshaft position corresponding to the first lift mode. The camshaft position may be maintained by a cam phaser that is coupled to the camshaft and in communication with the cam phaser OCV. Engine operation may be commanded to the second lift mode and a second duty cycle of the cam phaser OCV may be determined to maintain a second camshaft position corresponding to the second lift mode. A valve lifter system failure may be diagnosed based on a difference between the first and second duty cycles.

    Abstract translation: 一种方法可以包括以第一提升模式命令发动机的操作。 发动机可以包括气门升降器系统，其在第一提升模式中选择性地操作阀构件，并且通过与凸轮轴接合而包括第二提升模式。 可以确定凸轮相位器油控制阀（OCV）的第一占空比以保持对应于第一升程模式的第一凸轮轴位置。 凸轮轴位置可以由耦合到凸轮轴并与凸轮移相器OCV连通的凸轮相位器来维持。 发动机操作可以被命令到第二提升模式，并且可以确定凸轮移相器OCV的第二占空比以保持对应于第二提升模式的第二凸轮轴位置。 可以基于第一和第二占空比之间的差异来诊断气门挺杆系统故障。

    2-STEP OIL CONTROL VALVE FAILURE DIAGNOSTIC
    36.
    发明申请
    2-STEP OIL CONTROL VALVE FAILURE DIAGNOSTIC 有权
    2步油控制阀故障诊断

    公开(公告)号：US20090222196A1

    公开(公告)日：2009-09-03

    申请号：US12041159

    申请日：2008-03-03

    Applicant: Kenneth J. Cinpinski ,  Donovan L. Dibble

    Inventor： Kenneth J. Cinpinski ,  Donovan L. Dibble

    IPC: F02D41/00

    CPC classification number: F01L1/34 ,  F01L2800/05 ,  F01L2800/11 ,  F02D41/221 ,  F02D2041/001 ,  F02D2041/2027

    Abstract: A method may include commanding operation of an engine in a first lift mode. The engine may include a valve lifter system that selectively operates a valve member in the first lift mode and a second lift mode through engagement with a camshaft. A first duty cycle of a cam phaser oil control valve (OCV) may be determined to maintain a first camshaft position corresponding to the first lift mode. The camshaft position may be maintained by a cam phaser that is coupled to the camshaft and in communication with the cam phaser OCV. Engine operation may be commanded to the second lift mode and a second duty cycle of the cam phaser OCV may be determined to maintain a second camshaft position corresponding to the second lift mode. A valve lifter system failure may be diagnosed based on a difference between the first and second duty cycles.

    Abstract translation: 一种方法可以包括以第一提升模式命令发动机的操作。 发动机可以包括气门升降器系统，其在第一提升模式中选择性地操作阀构件，并且通过与凸轮轴接合而包括第二提升模式。 可以确定凸轮相位器油控制阀（OCV）的第一占空比以保持对应于第一升程模式的第一凸轮轴位置。 凸轮轴位置可以由耦合到凸轮轴并与凸轮移相器OCV连通的凸轮相位器来维持。 发动机操作可以被命令到第二提升模式，并且可以确定凸轮移相器OCV的第二占空比以保持对应于第二提升模式的第二凸轮轴位置。 可以基于第一和第二占空比之间的差异来诊断气门挺杆系统故障。

    Controller for variable valve device
    40.
    发明授权
    Controller for variable valve device 有权
    可变阀门控制器

    公开(公告)号：US08919306B2

    公开(公告)日：2014-12-30

    申请号：US13548601

    申请日：2012-07-13

    Applicant: Toyokazu Nakashima

    Inventor： Toyokazu Nakashima

    IPC: F01L1/34 ,  F01L1/18 ,  F01L1/344

    CPC classification number: F01L1/3442 ,  F01L1/185 ,  F01L2001/34466 ,  F01L2001/34469 ,  F01L2001/34476 ,  F01L2800/05

    Abstract: A controller for a variable valve device of an internal combustion engine includes a hydraulic valve timing changing mechanism that changes the valve timing VT of an intake valve, a valve timing locking mechanism that locks the valve timing VT to an intermediate phase, and an electronic controller that controls the operation of the valve timing changing mechanism. The electronic controller limits the variable range of the valve timing VT in accordance with the composition of hydraulic oil, when the operational state of the valve timing changing mechanism is a phase-unlocked state in which the valve timing VT can be changed.

    Abstract translation: 一种用于内燃机的可变阀装置的控制器包括：改变进气门的气门正时VT的液压阀正时改变机构，将气门正时VT锁定到中间相的气门正时锁定机构;以及电子控制器 其控制气门正时变更机构的动作。 当气门正时改变机构的操作状态是能够改变气门正时VT的相位解锁状态时，电子控制器根据液压油的组成来限制气门正时VT的可变范围。

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