Dynamic system diagnosing apparatus, tire air pressure diagnosing
apparatus and vehicle body weight change detecting apparatus using same
    1.
    发明授权
    Dynamic system diagnosing apparatus, tire air pressure diagnosing apparatus and vehicle body weight change detecting apparatus using same 失效
    动态系统诊断装置,轮胎气压诊断装置和使用其的车体重量变化检测装置

    公开(公告)号:US5412584A

    公开(公告)日:1995-05-02

    申请号:US159196

    申请日:1993-11-30

    CPC分类号: G01M99/00 G01L17/00 G01M17/04

    摘要: A diagnosing apparatus for diagnosing a dynamic system by detecting a fault of the dynamic system. The diagnosing apparatus comprises: disturbance estimating means for estimating an integrated disturbance vector, which is the sum of external and internal disturbance vectors of the dynamic system, based on an internal state vector of the dynamic system; correlation calculating means for calculating a cross-correlation between the estimated integrated disturbance vector and the internal state vector and for separating from the integrated disturbance a component relating to the internal disturbance; and diagnosing means for specifying a corresponding fault portion of the dynamic system from the separated component relating to the internal disturbance.

    摘要翻译: 一种用于通过检测动态系统的故障来诊断动态系统的诊断装置。 诊断装置包括:干扰估计装置,用于基于动态系统的内部状态向量来估计作为动态系统的外部和内部干扰矢量的总和的积分干扰矢量; 相关计算装置,用于计算估计的积分干扰矢量和内部状态矢量之间的互相关,并且与积分干扰分离与内部干扰有关的分量; 以及用于从与内部干扰相关的分离的分量中指定动态系统的相应故障部分的诊断装置。

    Multi-level inverter
    2.
    发明授权
    Multi-level inverter 失效
    多电平逆变器

    公开(公告)号:US4467407A

    公开(公告)日:1984-08-21

    申请号:US442153

    申请日:1982-11-16

    CPC分类号: H02M7/487

    摘要: The multi-level inverter according to the present invention comprises: a group of DC power supplies including three or more DC power supplies which are connected in series with same polarities, a group of terminals including a plurality of terminals for taking desired voltage levels from the opposite end and respective connecting points of group of DC power supplies, a group of switches consisting of switches having open modes and short-circuit modes equal in number to the terminals in the group of the terminals, with respective terminals on the input side being connected to the terminals in the group of terminals and respective terminals on the output side being commonly interconnected, and output terminals connected to the terminals on the output side being commonly interconnected in the group of switches. A contact of a switch connected to a terminal corresponding to desired voltage levels is closed to output voltages at multi-levels to be applied to a load.

    摘要翻译: 根据本发明的多电平逆变器包括:一组直流电源,包括串联具有相同极性的三个或更多个直流电源,一组端子,包括多个端子,用于从 直流电源组的相对端和各个连接点,一组由具有开路模式和短路模式的开关组成的开关,其数量等于端子组中的端子,输入端上的各个端子被连接 到端子组中的端子和输出侧的各个端子共同互连,并且连接到输出侧的端子的输出端子在开关组中共同互连。 连接到对应于期望电压电平的端子的开关的触点闭合以输出要施加到负载的多电平的电压。

    Method of and apparatus for controlling current of inverter
    3.
    发明授权
    Method of and apparatus for controlling current of inverter 失效
    逆变器电流控制方法及装置

    公开(公告)号:US4641075A

    公开(公告)日:1987-02-03

    申请号:US608247

    申请日:1984-05-08

    摘要: An inverter current controlling method wherein output currents of an inverter having a plurality of switching elements and connected to a three-phase load are detected, and the switching elements are ON/OFF controlled so that the waveforms of the output currents are approximated to set output current wave commands, respectively, comprising: maintaining a specific switching element in a specific state so that a specific output terminal of the inverter is fixed to a specific polarity during a period of time when a specific ideal phase voltage of the three-phase load corresponding to the output current wave command is in a predetermined phase; and ON/OFF controlling the switching elements other than the specific switching element during the period of the predetermined phase so that the output current waveforms are approximated to the output current wave commands, respectively. Also disclosed is an inverter current controlling apparatus suitably employed in the above-mentioned method.

    摘要翻译: 一种逆变器电流控制方法,其中检测到具有多个开关元件并连接到三相负载的逆变器的输出电流,并且开关元件被ON / OFF控制,使得输出电流的波形被近似设置输出 分别包括:将特定开关元件保持在特定状态,使得在相应于三相负载的特定理想相电压的时间段内将逆变器的特定输出端固定为特定极性 输出电流波形指令处于预定阶段; 以及在预定相位期间控制除了特定开关元件之外的开关元件的ON / OFF,使得输出电流波形分别近似于输出电流波形命令。 还公开了适用于上述方法的逆变器电流控制装置。

    Method of controlling current of inverter for optimum setting of
switching modes
    4.
    发明授权
    Method of controlling current of inverter for optimum setting of switching modes 失效
    控制逆变器电流的方法,以最佳设定开关模式

    公开(公告)号:US4722042A

    公开(公告)日:1988-01-26

    申请号:US915051

    申请日:1986-10-03

    摘要: A method of controlling current of a multi-phase inverter is based on the principle that, when an appropriate switching mode is set, the direction of change of the position of the end of the current deviation vector must converge within a specific range which is determined in accordance with a presently output voltage vector. Accordingly, the direction of change of the position of the end of the current deviation vector and a presently set switching mode are detected during each control period to make a judgement as to whether or not the detected current deviation change direction belongs to a predetermined reference change direction range. When the answer of this judgement is affirmative, the presently set switching mode is found to be appropriate; therefore, this switching mode is maintained, whereas, when the answer of the judgement is negative, the switching mode is changed to a switching mode which has a reference change direction range to which the detected current deviation change direction belongs and which is determined in accordance with the presently output voltage vector. Thus, an appropriate switching mode is continued or newly set, and a voltage vector is selected from among voltage vectors which are allowed to be selected in this set switching mode, said voltage vector being capable of converging the current deviations within a predetermined range including the origin on the complex plane, and the selected voltage vector is employed as a voltage vector for the next control period.

    摘要翻译: 控制多相逆变器的电流的方法是基于以下原理:当设定适当的开关模式时,电流偏差矢量的端部的位置的变化方向必须收敛在确定的特定范围内 根据目前的输出电压矢量。 因此,在每个控制周期期间检测电流偏差矢量的结束位置的变化方向和当前设定的切换模式,以判断检测到的电流偏差改变方向是否属于预定的参考变化 方向范围。 当该判断的答案是肯定的时,发现当前设置的切换模式是适当的; 因此,保持该切换模式,而当判断结果为否定时,切换模式变为切换模式,该切换模式具有检测到的电流偏差变化方向所属的参考变化方向范围,并且根据 与目前的输出电压矢量。 因此,继续或重新设定适当的开关模式,并且从在该设定开关模式中允许选择的电压矢量中选择电压矢量,所述电压矢量能够将电流偏差收敛在包括 起始于复平面,并且所选择的电压矢量被用作下一个控制周期的电压矢量。

    Control device for alternating-current motor
    6.
    发明申请
    Control device for alternating-current motor 有权
    交流电机控制装置

    公开(公告)号:US20060214625A1

    公开(公告)日:2006-09-28

    申请号:US11443365

    申请日:2006-05-31

    IPC分类号: H02P27/04

    CPC分类号: H02P21/06 H02P2207/05

    摘要: In one coordinate system of arbitrary rectangular coordinate systems including a coordinate system in which the position of a stator is fixed, a coordinate system in which the position of a rotor is fixed, and a coordinate system which rotates at a rotational frequency which is n times (n is an integer which is not 0 or 1) that of the rotor, a filter on any other coordinate system is defined. Further, driving of a motor is controlled by utilizing this filter. As a result, a coordinate transformation operation need not be individually performed with respect to control variables.

    摘要翻译: 在包括固定定子的位置的坐标系,固定有转子位置的坐标系和以n次旋转的旋转频率旋转的坐标系的任意直角坐标系的坐标系中, (n是不为0或1的整数)转子的任何其他坐标系上的滤波器被定义。 此外,通过利用该过滤器来控制电动机的驱动。 结果,不需要相对于控制变量单独执行坐标变换操作。

    Production system of electrolyzed water
    7.
    发明授权
    Production system of electrolyzed water 失效
    电解水生产系统

    公开(公告)号:US06391169B1

    公开(公告)日:2002-05-21

    申请号:US09665049

    申请日:2001-04-30

    IPC分类号: C25B900

    摘要: In a production system of electrolyzed water A, alkaline water and acid water produced in electrode chambers 12, 13 of an electrolyzer 10 are discharged through discharge conduits 41, 42 connected to the electrode chambers 12, 13 through a flow passage changeover valve 50. The discharge conduits 41, 42 are provided with manually operated faucets 43, 44 and 45, 46, respectively. When the faucets of either one of the discharge conduits 41 and 42 was opened, the electrolyzed water produced in the electrode chamber communicated with the discharge conduit opened at its faucets is discharged. Simultaneously, a drain valve provided on a drain conduit connected to the discharge conduit opened at its faucets is closed while a drain valve provided on a drain conduit connected to the discharge conduit closed at its faucets is intermittently opened.

    摘要翻译: 在电解水A的生产系统中,电解槽10的电极室12,13中产生的碱性水和酸性水通过流路切换阀50与连接于电极室12,13的排出导管41,42排出。 排放管道41,42分别设置有手动操作的水龙头43,44和45,46。 当排出导管41和42中的任何一个的水龙头打开时,与在其水龙头处打开的排出管道连通的电极室中产生的电解水被排出。 同时,设置在连接到在其龙头处打开的排放管道的排水管道上的排水阀关闭,同时设置在连接到在其龙头处封闭的排放管道的排水管道上的排水阀间歇地打开。

    Vibration analysis of the rotating wheel for controlling anti-lock
braking operation
    8.
    发明授权
    Vibration analysis of the rotating wheel for controlling anti-lock braking operation 失效
    用于控制防抱死制动操作的旋转轮的振动分析

    公开(公告)号:US5588721A

    公开(公告)日:1996-12-31

    申请号:US519965

    申请日:1995-08-28

    摘要: A braking force acting on the wheel is actuated by a very small amount at a resonant frequency of a vibrating system comprised of a vehicle body, a wheel, and road surface, and the amplitude of the resonant-frequency component of the wheel speed is detected. A gain in the amplitude of the resonant-frequency component of the wheel speed with respect to the amplitude of the very small actuation of the braking force is determined. A mean braking force is controlled to decrease when the gain is smaller than a reference value, and to increase when the gain is greater than the reference value.

    摘要翻译: 作用在车轮上的制动力以由车体,车轮和路面组成的振动系统的共振频率的非常小的量被致动,并且检测到车轮速度的共振频率分量的振幅 。 确定车轮速度的共振频率分量的振幅相对于制动力非常小的致动的振幅的增益。 当增益小于参考值时,平均制动力被控制为减小,并且当增益大于参考值时增加。

    Low loss and anti-shoot-through pulse width modulated inverter controller
    9.
    发明授权
    Low loss and anti-shoot-through pulse width modulated inverter controller 失效
    低损耗和防穿透脉宽调制逆变器控制器

    公开(公告)号:US4739465A

    公开(公告)日:1988-04-19

    申请号:US884366

    申请日:1986-07-11

    IPC分类号: H02M7/48 H02H7/122

    CPC分类号: H02M1/38 H02M7/53803

    摘要: An inverter controller for controlling an inverter having a plurality of electric valves each formed by connecting a switching element and a diode in anti-parallel with each other. On the basis of an output current command value, an ON/OFF signal is supplied to a switching element which needs to operate, and the supply of an ON signal to a switching element which need not operate is inhibited. Thus, it becomes unnecessary to provide dead time which has heretofore been needed.

    摘要翻译: 一种逆变器控制器,用于控制具有多个电动阀的逆变器,每个电动阀通过将开关元件和二极管彼此反平行地连接而形成。 基于输出电流指令值,将ON / OFF信号提供给需要操作的开关元件,并且禁止向不需要操作的开关元件提供ON信号。 因此,不需要提供迄今为止所需的死区时间。