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    • 1. 发明授权
    • Valve timing control apparatus for internal combustion engine
    • 内燃机气门正时控制装置
    • US08452519B2
    • 2013-05-28
    • US12372227
    • 2009-02-17
    • Naoki KokuboYoshiyuki KobayashiMasahiko WatanabeTakahumi Oowada
    • Naoki KokuboYoshiyuki KobayashiMasahiko WatanabeTakahumi Oowada
    • F02D45/00F01L1/34
    • F01L1/344F01L2001/3522F01L2800/00F01L2820/041
    • A valve timing control apparatus includes a phase varying mechanism arranged to vary a relative rotational phase of a cam shaft with respect to a crank shaft; a driving mechanism arranged to provide a driving force to the phase varying mechanism by energization; a control mechanism configured to control a current applied to the driving mechanism; and a phase angle sensing mechanism arranged to sense the relative rotational phase of the cam shaft with respect to the crank shaft, and to have a detection period longer than a control period of the control mechanism in accordance with an engine operating state. The control mechanism is configured to repeat increasing and decreasing of the current applied to the driving mechanism when the phase varying mechanism continuously varies the relative rotational phase of the cam shaft with respect to the crank shaft by a predetermined angle or more.
    • 气门正时控制装置包括相变机构,其被布置成改变凸轮轴相对于曲轴的相对旋转相位; 驱动机构,其被布置成通过通电向所述相变机构提供驱动力; 控制机构,被配置为控制施加到所述驱动机构的电流; 以及相位角检测机构,其布置成感测凸轮轴相对于曲轴的相对旋转相位,并且具有比根据发动机运行状态的控制机构的控制周期长的检测周期。 所述控制机构构成为,在所述相变机构使所述凸轮轴相对于所述曲轴的相对旋转相位连续变化预定角度以上的同时,重复所述施加于所述驱动机构的电流的上升和下降。
    • 2. 发明申请
    • VALVE TIMING CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE
    • 内燃机用时间控制装置
    • US20090210137A1
    • 2009-08-20
    • US12372227
    • 2009-02-17
    • Naoki KOKUBOYoshiyuki KobayashiMasahiko WatanabeTakahumi Oowada
    • Naoki KOKUBOYoshiyuki KobayashiMasahiko WatanabeTakahumi Oowada
    • F01L1/34
    • F01L1/344F01L2001/3522F01L2800/00F01L2820/041
    • A valve timing control apparatus includes a phase varying mechanism arranged to vary a relative rotational phase of a cam shaft with respect to a crank shaft; a driving mechanism arranged to provide a driving force to the phase varying mechanism by energization; a control mechanism configured to control a current applied to the driving mechanism; and a phase angle sensing mechanism arranged to sense the relative rotational phase of the cam shaft with respect to the crank shaft, and to have a detection period longer than a control period of the control mechanism in accordance with an engine operating state. The control mechanism is configured to repeat increasing and decreasing of the current applied to the driving mechanism when the phase varying mechanism continuously varies the relative rotational phase of the cam shaft with respect to the crank shaft by a predetermined angle or more.
    • 气门正时控制装置包括相变机构,其被布置成改变凸轮轴相对于曲轴的相对旋转相位; 驱动机构,其被布置成通过通电向所述相变机构提供驱动力; 控制机构,被配置为控制施加到所述驱动机构的电流; 以及相位角检测机构,其布置成感测凸轮轴相对于曲轴的相对旋转相位,并且具有比根据发动机运行状态的控制机构的控制周期长的检测周期。 所述控制机构构成为,在所述相变机构使所述凸轮轴相对于所述曲轴的相对旋转相位连续变化预定角度以上的同时,重复所述施加于所述驱动机构的电流的上升和下降。
    • 3. 发明授权
    • System for diagnosing sensors to find out abnormality therein
    • 用于诊断传感器以发现异常的系统
    • US08339142B2
    • 2012-12-25
    • US13011256
    • 2011-01-21
    • Takahumi Oowada
    • Takahumi Oowada
    • G01R31/02
    • G01R35/00G01R19/0092
    • In an abnormality diagnosing system for first and second current sensors for measuring a current, an obtaining unit obtains at least one pair of measured values of the first and second current sensors. The at least one pair of measured values is measured by the first and second current sensors at a substantially same timing. A diagnosing unit diagnoses whether there is an abnormality in at least one of the first and second current sensors based on a function defining a relationship between the at least one pair of measured values of the first and second current sensors.
    • 在用于测量电流的第一和第二电流传感器的异常诊断系统中,获得单元获得第一和第二电流传感器的至少一对测量值。 所述至少一对测量值在第一和第二电流传感器的基本相同的时刻测量。 诊断单元基于定义第一和第二电流传感器的至少一对测量值之间的关系的函数来诊断第一和第二电流传感器中的至少一个是否存在异常。
    • 4. 发明授权
    • Abnormality determination apparatus for angle detection device
    • 角度检测装置异常确定装置
    • US09043165B2
    • 2015-05-26
    • US13307346
    • 2011-11-30
    • Takahumi Oowada
    • Takahumi Oowada
    • G01D5/20G01D5/244
    • G01D5/2073G01D5/24461
    • The abnormality determination apparatus, which is for determining presence of an abnormality in an angle detection device configured to output an output signal having a value equivalent to a rotational angle of a rotating body, includes a smoothing device configured to receive the output signal of the angle detection device to smooth a dependent variable of a function whose independent variable is the rotational angle equivalent value, and a parameter calculation device for calculating an abnormality determination parameter based on the dependent variable smoothed by the smoothing device. The function is such that an integrated value of the rotational angle equivalent value over a predetermined time section is always positive or negative, and is configured to vary the dependent variable continuously in accordance with continuous variation of the independent variable in at least a part of the predetermined time section.
    • 用于确定角度检测装置中存在异常的异常确定装置,其被配置为输出具有与旋转体的旋转角度相等的值的输出信号,该平滑装置被配置为接收角度的输出信号 检测装置,其使自变量为旋转角度当量值的函数的因变量平滑;以及参数计算装置,其基于由平滑装置平滑的因变量来计算异常判定参数。 该功能使得在预定时间段上的旋转角等效值的积分值总是为正或负,并且被配置为根据自变量的至少一部分中的连续变化连续地改变因变量 预定时间段。
    • 5. 发明申请
    • CONTROL APPARATUS FOR ELECTRIC ROTATING MACHINE
    • 电动旋转机控制装置
    • US20110210687A1
    • 2011-09-01
    • US13035119
    • 2011-02-25
    • Hiroya TsujiTatsuru MoriokaHiroshi InamuraTakahumi Oowada
    • Hiroya TsujiTatsuru MoriokaHiroshi InamuraTakahumi Oowada
    • H02P21/00
    • H02P21/0003
    • A control apparatus for use with an electric power conversion system which is equipped with a dc/ac converter connected to an electric rotating machine and a capacitor joined to input terminals of the dc/ac converter. The control apparatus stores an angle of rotation (i.e., start angle θ0) of the electric rotating machine before start of control of energization of the electric rotating machine to discharge the capacitor and determines command currents idr and iqr which will result in zero (0) torque in the electric rotating machine. The control apparatus includes a command current correcting circuit which corrects the command currents idr and iqr by a difference between a current angle θ of rotation of the electric rotating machine and the start angle θ0, thereby avoiding constant rotation of the electric rotating machine when the capacitor is discharged.
    • 一种与电力转换系统一起使用的控制装置,其配备有连接到旋转电机的dc / ac转换器和连接到dc / ac转换器的输入端子的电容器。 控制装置在旋转电机的通电控制开始之前存储旋转电机的旋转角度(即,起始角度& t; 0),以对电容器进行放电,并且确定将导致零点的指令电流idr和iqr 0)旋转电机的转矩。 控制装置包括指令电流校正电路,其通过当前角度和电位差之间的差校正指令电流idr和iqr; 旋转电机的旋转角度和起始角度θ; 0,从而避免了当电容器放电时旋转电机的恒定旋转。
    • 6. 发明授权
    • Control apparatus for electric rotating machine
    • 电动旋转机控制装置
    • US08446114B2
    • 2013-05-21
    • US13035119
    • 2011-02-25
    • Hiroya TsujiTatsuru MoriokaHiroshi InamuraTakahumi Oowada
    • Hiroya TsujiTatsuru MoriokaHiroshi InamuraTakahumi Oowada
    • H02P21/00H02P21/14
    • H02P21/0003
    • A control apparatus for use with an electric power conversion system which is equipped with a dc/ac converter connected to an electric rotating machine and a capacitor joined to input terminals of the dc/ac converter. The control apparatus stores an angle of rotation (i.e., start angle θ0) of the electric rotating machine before start of control of energization of the electric rotating machine to discharge the capacitor and determines command currents idr and iqr which will result in zero (0) torque in the electric rotating machine. The control apparatus includes a command current correcting circuit which corrects the command currents idr and iqr by a difference between a current angle θ of rotation of the electric rotating machine and the start angle θ0, thereby avoiding constant rotation of the electric rotating machine when the capacitor is discharged.
    • 一种与电力转换系统一起使用的控制装置,其配备有连接到旋转电机的dc / ac转换器和连接到dc / ac转换器的输入端子的电容器。 控制装置在旋转电机的通电控制开始之前存储旋转电机的旋转角度(即,起始角θ0),以对电容器进行放电,并确定将产生零(0)的指令电流idr和iqr, 旋转电机中的转矩。 控制装置包括指令电流校正电路,其通过旋转电机的当前旋转角度θ和起始角θ0之间的差来校正指令电流idr和iqr,从而避免电动机在电容器 出院