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    • 1. 发明授权
    • Guard system for inverter apparatus
    • 逆变器装置保护系统
    • US4672525A
    • 1987-06-09
    • US824551
    • 1986-01-23
    • Akira HorieShigetoshi Okamatsu
    • Akira HorieShigetoshi Okamatsu
    • H02M7/515H02M7/527H02H7/122
    • H02M7/527H02M1/32
    • An inverter using gate turn-off thyristors (GTOs) is controlled by means of pulse width modulation (PWM) to control the speed of an induction motor. If the current flowing through the induction motor becomes an overcurrent which can still be cut off by the GTOs, a gate off signal is supplied to respective GTOs to interrupt the overcurrent. If any one of arms respectively corresponding to phases is short-circuited, a gate on signal is supplied to all GTOs to distribute the short circuit current among the arms, and the main circuit is interrupted by a high-speed breaker. At this time, a simultaneous gate on signal is given priority. If the simultaneous gate on signal is present, a simultaneous gate off signal is disabled. Owing to this configuration, destruction of the GTOs due to consecutive guard operation can be prevented.
    • 使用栅极截止晶闸管(GTO)的逆变器通过脉宽调制(PWM)来控制,以控制感应电机的速度。 如果流过感应电动机的电流成为仍然被GTO断开的过电流,则向相应的GTO提供栅极截止信号以中断过电流。 如果分别对应于相位的臂中的任何一个短路,则向所有GTO提供栅极导通信号以在臂之间分配短路电流,并且主电路被高速断路器中断。 此时,同时门开通信号被优先考虑。 如果存在同时门极导通信号,则禁止同时门极关闭信号。 由于这种配置,可以防止由于连续的保护操作导致的GTO的破坏。
    • 2. 发明授权
    • Controller for electric vehicles
    • 电动车控制器
    • US06274998B1
    • 2001-08-14
    • US09508856
    • 2000-03-17
    • Takashi KanekoTakeshi AndoAkira HorieKen Itou
    • Takashi KanekoTakeshi AndoAkira HorieKen Itou
    • H02P534
    • B60L3/102B60L15/025B60L2200/26Y02T10/643Y02T10/646
    • A controller for electric vehicles comprising a vector control inverter for controlling motors, which drive wheels of the electric vehicles, by dividing the primary current of the motors into an exciting current component and a torque current component, and controlling respective of the current components based on a respectively designated command, characterized in further comprising a dectector for detecting a wheel velocity (including a rotor frequency of the motor proportional to the wheel velocity), a detector for detecting slipping and skidding of the wheel based on a differential value (a changing rate with time) of the detected wheel velocity, a dectector for detecting re-adhesion of the wheel based on the differential value and a twice differential value of the detected wheel velocity, and an adjuster for adjusting the designated command for the torque current component in response to the detectors.
    • 一种用于电动车辆的控制器,包括用于通过将电动机的初级电流分成励磁电流分量和转矩电流分量来控制电动车辆的驱动轮的电动机的矢量控制变换器,并且基于 分别指定的命令,其特征在于还包括用于检测车轮速度(包括与车轮速度成比例的电动机的转子频率)的检测器,用于根据差分值(变化率)检测车轮的滑动和打滑的检测器 检测到的车轮速度的时间),用于根据微分值检测车轮重新附着的检测器和检测到的车轮速度的两倍差值;以及调节器,用于响应于调整转矩电流分量的指定命令 到检测器。
    • 4. 发明申请
    • Control apparatus for electric railcar
    • 电动车控制装置
    • US20050184693A1
    • 2005-08-25
    • US11107737
    • 2005-04-18
    • Motomi ShimadaAkira Horie
    • Motomi ShimadaAkira Horie
    • B60L7/16B60L7/14B60L7/18B60L9/18B60L9/22H02P3/08H02P7/00
    • B60L9/22B60L2200/26
    • A control apparatus for an electric railcar that provides control so that when rotational speed of a motor decreases below a required value, torque of the motor will decrease at a required rate of change, a current limiter for limiting a torque current command “(A)Iqp” output from a current command arithmetic unit is provided to ensure that when the rotational speed of the motor decreases below the required value, the torque current command will be limited to a command value “(B)Iqp” smaller than that command value, and to ensure that a carrier frequency at which PWM signals are created when switching elements of the electric power converter are controlled by carrier generator is controlled to become lower than a carrier frequency existing when the rotational speed of the motor decreases below the required value.
    • 一种用于电气轨道车辆的控制装置,其提供控制,使得当电动机的转速降低到所需值以下时,电动机的转矩将以所需的变化幅度减小,用于限制转矩电流指令“(A)”的限流器, 提供从电流指令运算单元输出的“Iqp”,以确保当电动机的转速降低到所需值以下时,转矩电流指令将被限制为小于该指令值的指令值“(B)Iqp” 并且确保当电力转换器的开关元件由载波发生器控制时产生PWM信号的载波频率被控制成低于当电动机的转速降低到所需值以下时存在的载波频率。
    • 5. 发明授权
    • DC apparatus and vehicle using the same
    • 直流设备和使用其的车辆
    • US06633495B2
    • 2003-10-14
    • US10101529
    • 2002-03-20
    • Seiji IshdaToshiaki OkuyamaTetsuo KojimaKiyoshi NakataAkira Horie
    • Seiji IshdaToshiaki OkuyamaTetsuo KojimaKiyoshi NakataAkira Horie
    • H02M324
    • H02M1/143
    • The voltage applied to a power converter is detected by a voltage detector, a function generator produces a voltage proportional to this detected voltage, and a high-pass filter detects an AC component superimposed on the voltage. An adder adds a bias voltage to this AC component, and an adder adds the output from the adder and the output from the function generator. The output from the adder is compared with a triangular wave produced from a rectangular wave generator, and a switching element is controlled to make switching operation according to the compared result. When a DC current is decreased by the AC component, a resistance current Ib is increased so that the AC components superimposed on the current and resistance current can be cancelled out.
    • 施加到功率转换器的电压由电压检测器检测,功能发生器产生与该检测电压成比例的电压,高通滤波器检测叠加在电压上的AC分量。 加法器向该AC分量加上偏置电压,加法器将来自加法器的输出和来自函数发生器的输出相加。 将来自加法器的输出与由矩形波发生器产生的三角波进行比较,并且根据比较结果控制开关元件进行开关操作。 当直流电流被交流分量降低时,电阻电流Ib增加,从而可以消除叠加在电流和电阻电流上的交流分量。
    • 10. 发明授权
    • Washing method
    • 洗涤方法
    • US5334258A
    • 1994-08-02
    • US913047
    • 1992-07-14
    • Nagato OsanoYukihiro ImaiAkihito HosakaIkuo NakajimaToshiji NishiguchiAkira Horie
    • Nagato OsanoYukihiro ImaiAkihito HosakaIkuo NakajimaToshiji NishiguchiAkira Horie
    • B08B3/04B08B3/08
    • B08B3/04
    • Disclosed is a washing method in which parts and products are washed free of residual smudges without using fleon-family solvents. The method of washing members such as parts or products comprises a first degreasing step for degreasing in nonaqueous liquid the members to be washed after worked, a second degreasing step for degreasing the members being washed in an aqueous liquid which dissolves the nonaqueous liquid, a finish washing step for washing in the aqueous liquid, a rinsing step, and a drying step, wherein the drying step is performed in a plurality of pure water baths, the temperature of a last pure water bath is established to a range of 70.degree. to 85.degree. C., and the washed members are taken out from the pure water bath for drying the surfaces thereof.Also, the washing method is disclosed in which pure water in a plurality of the pure water baths has temperature gradient in the sequence of washing steps.Furthermore, the washing method is disclosed in which the speed of taking out the washed members from the last pure water bath is established so as to be in inverse proportion to the surface area of the washed member.
    • 公开了一种洗涤方法,其中部分和产品被洗涤而没有残留的污迹而不使用脉络醇溶剂。 清洗部件或制品等部件的方法包括第一脱脂步骤,用于在非水液体中脱脂,加工后待清洗的部件,第二脱脂步骤,用于对在非水溶液中溶解的水性液体中洗涤的部件进行脱脂, 在水性液体中洗涤的洗涤步骤,漂洗步骤和干燥步骤,其中干燥步骤在多个纯水浴中进行,最后一个纯水浴的温度建立在70℃至85℃的范围内 并且将洗涤过的构件从纯水浴中取出以干燥其表面。 此外,公开了一种洗涤方法,其中多个纯水浴中的纯水按洗涤步骤的顺序具有温度梯度。 此外,公开了洗涤方法,其中从最后一个纯水浴中取出洗涤的部件的速度被建立成与洗涤部件的表面积成反比。