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    Throttle valve control system for an internal combustion engine
    3.
    发明授权
    Throttle valve control system for an internal combustion engine 失效
    内燃机节流阀控制系统

    公开(公告)号：US4791902A

    公开(公告)日：1988-12-20

    申请号：US73655

    申请日：1987-07-15

    申请人： Yoshikazu Ishikawa ,  Kouji Yamaguchi

    发明人： Yoshikazu Ishikawa ,  Kouji Yamaguchi

    IPC分类号： F02D11/10 ,  F02D41/14 ,  F02D9/08

    CPC分类号： F02D11/105 ,  F02D41/14 ,  F02D2011/102

    摘要： A throttle valve control system for an internal combustion engine sets a target value of a pressure in an intake pipe of the engine for attaining a minimum fuel consumption rate in response to a detected engine rotational speed, and drives the throttle valve to an opening determined so as to reduce the difference between the detected actual pressure in the intake pipe and the target value of the pressure in the intake pipe. When the actual operation position of the throttle valve is not in an allowable range of a target throttle valve opening determined in response to the detected engine speed, the throttle valve is controlled to reduce the difference between the actual operation position of the throttle valve and the target throttle valve opening.

    摘要翻译： 用于内燃机的节气门控制系统响应于检测到的发动机转速来设定发动机的进气管中的压力的​​目标值以获得最小燃料消耗率，并且将节气门驱动到由此确定的开度 以减少检测到的进气管中的实际压力与进气管中的压力的​​目标值之间的差。 当节气门的实际操作位置不在根据检测到的发动机转速确定的目标节气门开度的允许范围内时，节流阀被控制以减小节流阀的实际操作位置与 目标节气门开度。

    Throttle valve controller for internal combustion engine
    4.
    发明授权
    Throttle valve controller for internal combustion engine 失效
    内燃机节气门控制器

    公开(公告)号：US4765295A

    公开(公告)日：1988-08-23

    申请号：US58836

    申请日：1987-06-05

    申请人： Yoshikazu Ishikawa ,  Kouji Yamaguchi ,  Takeo Suzuta

    发明人： Yoshikazu Ishikawa ,  Kouji Yamaguchi ,  Takeo Suzuta

    IPC分类号： F02D41/14 ,  F02D11/10 ,  F02D41/00 ,  F02D41/24

    CPC分类号： F02D11/105 ,  F02D41/2412 ,  F02D2011/102 ,  F02D2250/16

    摘要： An engine throttle valve control apparatus whereby a reference throttle valve degree of the opening is established in accordance with the accelerator pedal actuation position and a reference opening degree characteristic. A boundary throttle valve degree of the opening is established in accordance with the accelerator pedal actuation position and at least one upper limit opening degree characteristic and a lower limit opening degree characteristic. A target degree of the throttle opening is computed from the relationship between the reference degree of the opening and a boundary degree of the opening, in conjunction with the contents of a characteristic command which can be freely selected. Thereby throttle valve is driven to reduce the deviation between the actual degree of the opening and the target degree of the opening.

    摘要翻译： 一种发动机节流阀控制装置，其根据加速踏板致动位置和基准开度特性建立开度的基准节气门程度。 根据加速器踏板致动位置和至少一个上限开度特性和下限开度特性建立开口的边界节流阀程度。 结合可自由选择的特征指令的内容，根据打开的基准程度和开口的边界度之间的关系来计算节气门开度的目标度。 从而驱动节流阀，以减小实际的开度与目标开度之间的偏差。

    Hydraulic servo unit with solenoid operated valves having variable duty cycles
    5.
    发明授权
    Hydraulic servo unit with solenoid operated valves having variable duty cycles 失效
    带电磁阀的液压伺服单元具有可变的工作周期

    公开(公告)号：US5355772A

    公开(公告)日：1994-10-18

    申请号：US903723

    申请日：1992-06-24

    申请人： Takamichi Shimada ,  Yoshikazu Ishikawa ,  Kouji Yamaguchi

    发明人： Takamichi Shimada ,  Yoshikazu Ishikawa ,  Kouji Yamaguchi

    IPC分类号： F15B11/04 ,  F15B13/043 ,  F16H61/40 ,  F16H61/421 ,  F16H63/06 ,  F16H63/28 ,  F15B15/17 ,  F15B13/044

    CPC分类号： F16H61/425 ,  F16H61/42

    摘要： A hydraulic servo unit for changing the swash plate angle of a continuously variable transmission to vary its speed reduction ratio comprises a cylinder whose chamber is divided into a rod-side chamber and a head-side chamber by a piston slidably fitted therein. The rod-side chamber is supplied with working oil under predetermined hydraulic pressure through a first hydraulic pressure supply passage. A second hydraulic pressure supply passage is connected to the head-side chamber through a duty-cycle-controlled first solenoid-operated valve, and a drain hydraulic passage is connected to the second hydraulic pressure supply passage through a second duty-cycle-controlled solenoid-operated valve. The first and second solenoid-operated valves are simultaneously actuated with different duty cycles. The difference between the different duty ratios is varied to vary the rate at which the working oil flows into or out of the head-side chamber through the second hydraulic pressure supply passage, in a wide range from a very low rate to a high rate. The working oil can accurately be controlled especially in a very low rate range for operating the hydraulic servo unit at very low speed. Therefore, continuously variable transmission can precisely and smoothly be controlled for varying the speed reduction ratio.

    摘要翻译： 用于改变无级变速器的斜盘角度以改变其减速比的液压伺服单元包括一个气缸，其腔室通过可滑动地装配在其中的活塞分成杆侧室和头侧室。 杆侧室通过第一液压供给通道在预定液压下供给工作油。 第二液压供给通道通过占空比控制的第一电磁阀连接到头侧室，并且排水液压通道通过第二占空比控制螺线管连接到第二液压供给通道 操作阀。 第一和第二电磁阀同时由不同的占空比驱动。 改变不同占空比之间的差异，以便在从低速率到高速率的宽范围内改变工作油通过第二液压供给通道流入或流出头侧室的速率。 工作油可以精确地控制，特别是在非常低的速率范围内，以非常低的速度操作液压伺服单元。 因此，可以精确平稳地控制无级变速器，以改变减速比​​。

    Method of controlling speed reduction ratio for a continuously variable speed transmission
    6.
    发明授权
    Method of controlling speed reduction ratio for a continuously variable speed transmission 失效
    控制连续变速传动的减速比的方法

    公开(公告)号：US4962679A

    公开(公告)日：1990-10-16

    申请号：US260186

    申请日：1988-10-19

    申请人： Yoshikazu Ishikawa ,  Kouji Yamaguchi ,  Koji Sasajima

    发明人： Yoshikazu Ishikawa ,  Kouji Yamaguchi ,  Koji Sasajima

    IPC分类号： B60W10/04 ,  B60W10/10 ,  B60W10/103 ,  F16H61/40 ,  F16H61/421

    CPC分类号： F16H61/462 ,  F16H61/425 ,  F16H61/46 ,  Y10T477/636

    摘要： The speed reduction ratio of a continuously variable speed transmission is controlled by setting a reference engine speed according to a parameter representing a driver's intention of acceleration, such as the depression of an accelerator pedal, and controlling the speed reduction ratio so as to equalize the engine rotational speed with the reference engine speed. When the parameter is lowered such as by releasing the accelerator pedal, the process of controlling the speed reduction ratio due to a reduction in the reference engine speed caused by the reduction in the parameter is started after a certain time delay.

    摘要翻译： 通过根据表示驾驶员的加速意图的参数（例如加速器踏板的按下）来设定基准发动机转速并控制减速比来控制连续变速传动的减速比，以便使发动机 转速与参考发动机转速。 当通过释放加速器踏板来降低参数时，在一定的时间延迟之后开始由于参数减小引起的参考发动机转速的降低来控制减速比的处理。

    Throttle control system for automotive internal combustion engine
    8.
    发明授权
    Throttle control system for automotive internal combustion engine 失效
    汽车内燃机节气门控制系统

    公开(公告)号：US4860708A

    公开(公告)日：1989-08-29

    申请号：US200988

    申请日：1988-06-01

    申请人： Kouji Yamaguchi ,  Yoshikazu Ishikawa ,  Toshihiro Kameda ,  Shogo Hattori ,  Junichi Miyake

    发明人： Kouji Yamaguchi ,  Yoshikazu Ishikawa ,  Toshihiro Kameda ,  Shogo Hattori ,  Junichi Miyake

    IPC分类号： F02D9/02 ,  F02D11/10

    CPC分类号： F02D11/10 ,  F02D2011/103

    摘要： A control system for a throttle valve in automotive internal combustion engines in which the throttle valve is both mechanically linked with an accelerator pedal and also connected with an actuator such as a pulse motor for fine-adjusting the opening of the throttle valve in the closing direction in accordance with the operating state of the engine after it has been opened through the mechanical linkage. A spring is inserted in the mechanical linkage system between the accelerator pedal and the throttle valve. The provision of the spring substantially isolates the accelerator pedal from forces acting in other parts of the system so that the operator does not feel an unnatural change in the amount of pressure needed to depress the accelerator pedal when the actuator goes into operation.

    摘要翻译： 一种用于汽车内燃机中的节流阀的控制系统，其中节流阀与加速器踏板机械连接并且还与诸如脉冲电机的致动器连接，用于在关闭方向上微调节气门的开度 根据发动机在通过机械连杆打开后的运行状态。 在加速器踏板和节流阀之间的机械联动系统中插入弹簧。 弹簧的设置基本上将加速器踏板与作用在系统的其他部分中的力隔离，使得操作者在致动器进入操作时不会感到压下加速踏板所需的压力的不自然的变化。