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    • 83. 发明授权
    • AC motor driving apparatus and method of controlling the same
    • 交流电动机驱动装置及其控制方法
    • US07271557B2
    • 2007-09-18
    • US11486151
    • 2006-07-14
    • Toshiyuki AjimaHideki MiyazakiYoshitaka IwajiTakao YanaiKinya Nakatsu
    • Toshiyuki AjimaHideki MiyazakiYoshitaka IwajiTakao YanaiKinya Nakatsu
    • H02P7/00
    • H02P6/18
    • The AC motor driving apparatus comprises an inverter for supplying power to an AC motor, current sensors for detecting current that flows in the motor or inverter, a rotation sensor for detecting the rotation of the rotor in the motor, and a control unit for controlling the driving of the inverter. A current detection value detected by the current sensor and a rotor rotational position are used to estimate three-phase motor current values. The estimated motor current values are used to control the inverter. Thereby, an inexpensive, space-saving AC motor driving apparatus as well as an AC motor controller, electric actuator, or vehicle that can perform highly precise torque control from zero speed to high-speed rotation without depending on the PWM pulse pattern are provided.
    • 交流电动机驱动装置包括用于向交流电动机供电的逆变器,用于检测在电动机或逆变器中流动的电流的电流传感器,用于检测电动机中的转子的旋转的旋转传感器,以及用于控制电动机的控制单元 驱动变频器。 使用由电流传感器检测的电流检测值和转子旋转位置来估计三相电动机电流值。 估计电机电流值用于控制变频器。 因此,提供了一种廉价的,节省空间的AC电动机驱动装置以及可以执行从零速到高速旋转的高精度转矩控制的交流电动机控制器,电动致动器或车辆,而不依赖于PWM脉冲模式。
    • 84. 发明授权
    • Fuel supply apparatus using low boiling point fuel and its control method
    • 燃料供应装置采用低沸点燃料及其控制方法
    • US07124714B2
    • 2006-10-24
    • US10383544
    • 2003-03-10
    • Shiro YamaokaMinoru OosugaKinya Nakatsu
    • Shiro YamaokaMinoru OosugaKinya Nakatsu
    • F02B75/12
    • F02M21/0221F02D19/022F02D19/023F02D19/025F02D19/027F02M21/0212F02M21/0287F02M21/0296F02M37/20Y02T10/32Y10T137/4824
    • A fuel supply apparatus reduces the fuel vaporization and leakage. The positions of vaporization and leakage and their amount in the fuel tank and the fuel pipe are detected when using a low boiling point fuel having a vapor phase in the normal temperatures and atmospheric pressures, and the fuel state is controlled based on those detected values. By providing another container made of elastomatic material having an expandable mechanical characteristic inside the fuel storing container, the low boiling point fuel is stored in the separate container. A flow rate controlling apparatus is provided for heating or cooling the fuel pipe leading the low boiling point fuel stored in the fuel storing container to the engine. A flow rate controlling apparatus is provided for adjusting the flow rate of the fuel in the fuel pipe for leading the low boiling point fuel stored in the fuel storing container to the engine.
    • 燃料供给装置减少燃料蒸发和泄漏。 当在正常温度和大气压下使用具有气相的低沸点燃料,并且基于这些检测值来控制燃料状态时,检测汽化和泄漏的位置及其在燃料箱和燃料管中的量。 通过在燃料储存容器内提供具有可膨胀机械性能的弹性材料制成的另一容器,低沸点燃料被储存在分开的容器中。 提供了一种流量控制装置,用于加热或冷却将燃料储存容器中存储的低沸点燃料引导到发动机的燃料管。 提供了一种流量控制装置,用于调节燃料管中的燃料的流量,以将存储在燃料储存容器中的低沸点燃料引导到发动机。
    • 87. 发明授权
    • Fuel supply apparatus using low boiling point fuel and its control method
    • 燃料供应装置采用低沸点燃料及其控制方法
    • US06918370B2
    • 2005-07-19
    • US10401746
    • 2003-03-31
    • Shiro YamaokaMinoru OosugaKinya Nakatsu
    • Shiro YamaokaMinoru OosugaKinya Nakatsu
    • F02M21/08F02M21/02F02M31/16F02M37/00F02M37/20F02B77/00
    • F02M21/0221F02D19/022F02D19/023F02D19/025F02D19/027F02M21/0212F02M21/0287F02M21/0296F02M37/20Y02T10/32Y10T137/4824
    • A fuel supply apparatus reduces the fuel vaporization and leakage by means that the positions of vaporization and leakage and their amount in the fuel tank and the fuel pipe is detected properly in case of using a low boiling point fuel having a vapor phase in the normal temperatures and atmospheric pressures, and the fuel state is controlled based on those detected values. By providing another container made of elastomatic material having an expandable mechanical characteristic inside the fuel storing container, the low boiling point fuel is stored in the separate container. A flow rate controlling apparatus is provided for heating or cooling the fuel pipe leading the low boiling point fuel stored in the fuel storing container to the engine. A flow rate controlling apparatus is provided for adjusting the flow rate of the fuel in the fuel pipe for leading the low boiling point fuel stored in the fuel storing container to the engine. An adjusting apparatus is provided for at least one of the fuel pressure and the fuel temperature in responsive to the output signal from the control apparatus generating the electric signal in responsive to at least one of the fuel leakage volume and the fuel vaporization state.
    • 燃料供给装置通过在正常温度下使用具有气相的低沸点燃料的情况下适当地检测汽化和泄漏的位置及其在燃料箱和燃料管中的量的位置来减少燃料蒸发和泄漏 和大气压力,并且基于这些检测值来控制燃料状态。 通过在燃料储存容器内提供具有可膨胀机械性能的弹性材料制成的另一容器,低沸点燃料被储存在分开的容器中。 提供了一种流量控制装置,用于加热或冷却将燃料储存容器中存储的低沸点燃料引导到发动机的燃料管。 提供了一种流量控制装置,用于调节燃料管中的燃料的流量,以将存储在燃料储存容器中的低沸点燃料引导到发动机。 响应于至少一个燃料泄漏体积和燃料蒸发状态,响应于来自控制装置的产生电信号的输出信号,为燃料压力和燃料温度中的至少一个提供调节装置。
    • 88. 发明授权
    • Inverter apparatus
    • 变频器
    • US06844700B2
    • 2005-01-18
    • US10614179
    • 2003-07-08
    • Keijiro SakaiToshiaki OkuyamaKinya NakatsuHiroyuki TomitaJunji KatoTeiichi Furukawa
    • Keijiro SakaiToshiaki OkuyamaKinya NakatsuHiroyuki TomitaJunji KatoTeiichi Furukawa
    • H02P23/00H02P1/16H02P21/00H02P27/04H02P7/42
    • H02P1/16H02P21/34
    • An inverter apparatus for converting a DC power converted from an input AC power to an output AC power of a variable frequency and a variable electric power to drive an induction motor at a variable speed. The inverter apparatus includes a rectifying unit, a filter capacitor, an inverter unit having an input connected across the filter capacitor, an input current detector and a gate circuitry for driving the inverter unit. An excitation current detection unit detects an excitation current of the induction motor from an output signal of the input current detector, a gate signal for driving the gate circuitry and a reference phase command. A setting unit sets a limitation level of the excitation current, a torque boost voltage command unit produces a torque boost voltage command, and a torque boost voltage compensation unit changes the torque boost voltage command so that the detected excitation current value is smaller than or equal to the limitation level.
    • 一种逆变器装置,用于将从输入AC电力转换的DC电力转换为可变频率和可变电力的输出AC电力,以可变速度驱动感应电动机。 逆变器装置包括整流单元,滤波电容器,具有连接在滤波电容器两端的输入端的反相器单元,输入电流检测器和用于驱动逆变单元的门电路。 励磁电流检测单元根据输入电流检测器的输出信号,用于驱动门电路的栅极信号和基准相位指令来检测感应电动机的励磁电流。 设定单元设定励磁电流的限制电平,转矩提升电压指令单元产生转矩提升电压指令,转矩提升电压补偿单元改变转矩提升电压指令,使检测出的励磁电流值小于等于 到限制级别。
    • 89. 发明授权
    • Inverter apparatus
    • 变频器
    • US06741063B2
    • 2004-05-25
    • US10099973
    • 2002-03-19
    • Keijiro SakaiToshiaki OkuyamaKinya NakatsuHiroyuki TomitaJunji KatoTeiichi Furukawa
    • Keijiro SakaiToshiaki OkuyamaKinya NakatsuHiroyuki TomitaJunji KatoTeiichi Furukawa
    • H02P763
    • H02P1/16H02P21/34
    • Induction voltage command Em* is obtained from inverter's primary frequency command &ohgr;1* and torque boost voltage commander produces torque boost voltage command &Dgr;Vz* in accordance with &ohgr;1* while integrator produces reference phase command &thgr;d*. uvw/dq converter detects motor excitation current Id (equivalent of no-load current). Next, deviation of excitation current limitation level command Idmax* and detected Id is inputted to limiter processing unit to produce torque boost voltage compensation value &Dgr;Vc for varying &Dgr;Vz* so that Id is smaller than or equal to Idmax*. Inverted &Dgr;Vz* is set up as a lower limiter value of the limiter processing unit. Next, &Dgr;Vc and &Dgr;Vz* are added to produce final compensated torque boost voltage command &Dgr;Vt* and &Dgr;Vt* and Em* are added to produce q-axis voltage command Vq* of the inverter output voltage.
    • 感应电压指令Em *从变频器的主要频率指令ω1*获得,而转矩提升电压指令器根据ω1*产生转矩提升电压指令DeltaVz *,而积分器产生参考相位指令。 uvw / dq转换器检测电机励磁电流Id(等效空载电流)。 接下来,将励磁电流限制电平指令Idmax *和检测到的Id的偏差输入到限幅器处理单元,以产生用于改变DeltaVz *的转矩提升电压补偿值DeltaVc,使得Id小于或等于Idmax *。 反相DeltaVz *设置为限幅器处理单元的下限值。 接下来,增加DeltaVc和DeltaVz *以产生最终补偿的转矩提升电压命令DeltaVt *和DeltaVt *和Em *以产生逆变器输出电压的q轴电压指令Vq *。