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    Variable valve operating system of internal combustion engine enabling variation of working angle and phase
    2.
    发明授权
    Variable valve operating system of internal combustion engine enabling variation of working angle and phase 有权

    公开(公告)号：US06408806B1

    公开(公告)日：2002-06-25

    申请号：US09874052

    申请日：2001-06-06

    申请人： Takanobu Sugiyama ,  Tsuneyasu Nohara

    发明人： Takanobu Sugiyama ,  Tsuneyasu Nohara

    IPC分类号： F01L134

    摘要： A valve operating system of an internal combustion engine enabling both valve working angle and phase to be varied, includes a variable working angle control mechanism being responsive to a supply pressure of working fluid to adjust a working angle of an intake valve, and a variable phase control mechanism being responsive to a supply pressure of working fluid to adjust a phase of the working angle of the intake valve. A control unit controls the supply pressure to each of the control mechanisms depending on engine operating conditions. In a cold-engine state that the temperature of working fluid is below a predetermined temperature, an intake valve open timing is retarded in comparison with a predetermined stability-limit valve open timing, by limiting a controlled variable of at least one of the control mechanisms.

    Control system and method for an internal combustion engine
    3.
    发明授权
    Control system and method for an internal combustion engine 失效
    内燃机的控制系统和方法

    公开(公告)号：US06883476B1

    公开(公告)日：2005-04-26

    申请号：US10649973

    申请日：2003-08-28

    申请人： Tsuneyasu Nohara ,  Shinichi Takemura ,  Takanobu Sugiyama

    发明人： Tsuneyasu Nohara ,  Shinichi Takemura ,  Takanobu Sugiyama

    IPC分类号： F01L13/00 ,  F02D13/02 ,  F02D15/02 ,  F02D41/00 ,  F02D41/22 ,  F02D45/00 ,  F01L1/34

    CPC分类号： F02D13/02 ,  F01L1/022 ,  F01L1/024 ,  F01L13/0026 ,  F01L2013/0073 ,  F01L2800/00 ,  F01L2820/041 ,  F02D41/0002 ,  F02D41/221 ,  F02D2041/001 ,  F02D2041/227 ,  F02D2041/228 ,  Y02T10/18 ,  Y02T10/42

    摘要： A control system for an internal combustion engine having a variable valve operating mechanism capable of varying at least one of a valve lift and an operation angle of an engine valve continuously is provided. The control system comprises a detecting device that detects an operating condition of the variable valve operating mechanism and produces a signal representative thereof, and a controller that controls the operating condition of the variable valve operating mechanism in response to the signal from the detecting device. The controller is programmed to determine whether an operation responsiveness of the variable valve operating mechanism is lowered based on the signal from the detecting device and vary operational characteristics of the variable valve operating mechanism when the operation responsiveness of the variable valve operating mechanism is lowered. A control method is also provided.

    摘要翻译： 提供一种具有能够连续地改变发动机气门的气门升程和操作角度中的至少一个的可变气门操作机构的内燃机的控制系统。 该控制系统包括检测装置，该检测装置检测可变气门操作机构的操作状态并产生代表其的信号;以及控制器，其响应于来自检测装置的信号来控制可变气门操作机构的操作状态。 控制器被编程为基于来自检测装置的信号来确定可变气门操作机构的操作响应性是否降低，并且当可变气门操作机构的操作响应性降低时改变可变气门操作机构的操作特性。 还提供了一种控制方法。

    Variable valve control device of internal combustion engine
    7.
    发明授权
    Variable valve control device of internal combustion engine 有权
    内燃机变阀控制装置

    公开(公告)号：US06513467B2

    公开(公告)日：2003-02-04

    申请号：US09934588

    申请日：2001-08-23

    申请人： Tsuneyasu Nohara ,  Takanobu Sugiyama

    发明人： Tsuneyasu Nohara ,  Takanobu Sugiyama

    IPC分类号： F01L134

    CPC分类号： F01L1/3442 ,  F01L13/0021 ,  F01L13/0026 ,  F01L2013/0073 ,  F01L2800/00 ,  Y10T74/2102

    摘要： Disclosed is a control device comprising an IVWAV or EVWAV mechanism. The IVWAV mechanism varies a working angle of an intake valve and the EVWAV varies a working angle of an exhaust valve. An IVOPV mechanism varies an operation phase of the intake valve. An EVOPV mechanism varies an operation phase of the exhaust valve, and a control unit controls the IVWAV or EVWAV mechanism and the IVOPV and EVOPV mechanisms according to an operating condition of an engine. The control unit is configured to control the IVWAV or EVWAV mechanism and the IVOPV and EVOPV mechanisms.

    摘要翻译： 公开了一种包括IVWAV或EVWAV机构的控制装置。 IVWAV机构改变进气门的工作角度，EVWAV改变排气阀的工作角度。 IVOPV机构改变进气门的运行阶段。 EVOPV机构改变排气门的运行阶段，并且控制单元根据发动机的运行状况来控制IVWAV或EVWAV机构以及IVOPV和EVOPV机构。 控制单元配置为控制IVWAV或EVWAV机制以及IVOPV和EVOPV机制。

    Valve control device of internal combustion engine
    8.
    发明授权
    Valve control device of internal combustion engine 有权
    内燃机阀门控制装置

    公开(公告)号：US06397800B2

    公开(公告)日：2002-06-04

    申请号：US09803141

    申请日：2001-03-12

    申请人： Tsuneyasu Nohara ,  Takanobu Sugiyama ,  Shinichi Takemura

    发明人： Tsuneyasu Nohara ,  Takanobu Sugiyama ,  Shinichi Takemura

    IPC分类号： F01L134

    CPC分类号： F01L13/0021 ,  F01L13/0026

    摘要： A first variable valve actuating mechanism varies an operating angular range of an intake valve, a second variable valve actuating mechanism varies a center angle of the operating angular range, and a control unit controls, through the first and second variable valve actuating mechanisms, the operating angular range and the center angle in accordance with an operation condition of the engine. The control unit is configured to carry out, in a low-output operation range of the engine, advancing the center angle with increase of the engine output while making the variation of the center angle larger than that of the operating angular range; and in a middle-output operation range of the engine, increasing the operating angular range with increase of the engine output while making the variation of the operating angular range larger than that of the center angle.

    摘要翻译： 第一可变气门致动机构改变进气门的操作角度范围，第二可变气门致动机构改变操作角度范围的中心角度，并且控制单元通过第一和第二可变气门执行机构控制操作 角度范围和中心角度。 所述控制单元被配置为在所述发动机的低输出操作范围内执行使所述中心角度的变化大于所述操作角度范围的变化而使所述发动机输出增加的中心角; 并且在发动机的中间输出操作范围内，随着发动机输出的增加而增加操作角度范围，同时使得操作角度范围的变化大于中心角的变化。