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    • 1. 发明专利
    • Secondary battery monitoring device
    • 二次电池监控装置
    • JP2013102657A
    • 2013-05-23
    • JP2011246077
    • 2011-11-10
    • Hitachi Ltd株式会社日立製作所
    • ARITA YUTAKATOYODA EIICHINAGASU MASAHIROEMORI AKIHIKO
    • H02J7/02H01M10/44H01M10/48
    • Y02E60/12
    • PROBLEM TO BE SOLVED: To provide a system for detecting states of respective secondary batteries by receiving power supply from the secondary batteries formed from serially connected secondary battery cells, the system capable of achieving effective utilization of electric power stored in the secondary batteries, optimum battery capacities and miniaturized batteries by maintaining discharge amount of each battery pack unit so that the discharge amount is always equal.SOLUTION: A secondary battery monitoring device is constructed by serially connecting battery units formed from one or more chargeable and dischargeable battery cells and monitoring devices that detect states of the battery cells. In each of the battery units, there are provided a first power supply circuit that supplies electric power to the monitoring devices and a second power supply circuit that supplies electric power evenly from all the battery units.
    • 解决的问题:为了提供一种用于通过从由串联连接的二次电池组形成的二次电池接收电力来检测各个二次电池的状态的系统,该系统能够有效地利用存储在二次电池中的电力 ,最佳电池容量和小型化的电池,通过维持每个电池组单元的放电量使得放电量总是相等。 解决方案:二次电池监视装置通过串联连接由一个或多个可充电和可放电的电池单元形成的电池单元和监测电池单元状态的监控装置构成。 在每个电池单元中,设置有向监控装置供电的第一电源电路和从所有电池单元均匀地供电的第二电源电路。 版权所有(C)2013,JPO&INPIT
    • 3. 发明专利
    • Driving control device and electric rolling stock
    • 驱动控制装置和电动滚筒
    • JP2010220474A
    • 2010-09-30
    • JP2010151162
    • 2010-07-01
    • Hitachi Ltd株式会社日立製作所
    • TERUNUMA MUTSUHIROTOYODA EIICHISHIMADA MOTOMINAGASU MASAHIRO
    • B60L7/12H02M3/155
    • B60L2200/26
    • PROBLEM TO BE SOLVED: To provide a driving control device of an electric rolling stock wherein the generating AC voltage of an inverter of the electric rolling stock is increased, and thereby, the high-speed-side characteristics of an induction motor of the electric rolling stock are extended, and further, the performances of the power running and regenerating brake of the electric rolling stock are improved, in a power converter for driving the induction motor by the variable voltage and frequency type inverter. SOLUTION: In the driving control device of an electric rolling stock, a DC voltage source having an energy storage device, which has a capacity capable of treating the current of flowing-in to or flowing-out from an inverter of the electric rolling stock, is inserted into the inverter in series with the inverter in the earthing side of the input of the inverter. The output voltage of the DC voltage source is controlled from zero voltage continuously, and is added to a catenary voltage, and further, is applied to the inverter. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为了提供一种电动车辆的驱动控制装置,其中电动车辆的逆变器的发电交流电压增加,从而提供电动车辆的感应电动机的高速侧特性 电动车辆能够延长,另外,通过变频电压型变频器驱动感应电动机的动力转换器,能够提高电动车辆的动力运行再生制动性能。 解决方案:在电动车辆的驱动控制装置中,具有能量存储装置的直流电压源,其具有能够处理从电动机的逆变器流入或流出的电流 在变频器输入的接地侧与变频器串联插入变频器。 直流电压源的输出电压由零电压连续控制,加到接触网电压上,并进一步施加到逆变器上。 版权所有(C)2010,JPO&INPIT
    • 4. 发明专利
    • Device for driving railroad vehicle
    • 用于驱动铁路车辆的装置
    • JP2010011683A
    • 2010-01-14
    • JP2008170293
    • 2008-06-30
    • East Japan Railway CoHitachi Ltd東日本旅客鉄道株式会社株式会社日立製作所
    • KONISHIDE MASAOMISHIMADA MOTOMINAGASU MASAHIROTOYODA EIICHINOMOTO HIROSHISHIMAMUNE RYOHEIFURUTA RYOSUKEOMURA TETSURO
    • B60L15/20B60L9/18B60L11/12B60L11/18B61C3/02B61C7/04
    • Y02T10/7005Y02T10/7241Y02T10/7275Y02T30/16
    • PROBLEM TO BE SOLVED: To solve the inconvenience that if a hybrid vehicle currently running on a local line with a running pattern of a low-speed diesel car directly enters a service zone for an electric vehicle operating on a rapid and tight schedule, other electric vehicles catch up with the hybrid vehicle and thereby operation schedules are all mixed up. SOLUTION: A device for driving a railroad vehicle is provided with a device 12 for detecting a current service route. According to a service route detected by the device 12, the optimum running pattern is selected by a controller 11, and then a command value to each device is switched to allow a railroad vehicle to operate with the same running pattern as those of other diesel cars and electric vehicles according to the detected service route. This way, diesel cars can be easily substituted by hybrid vehicles without installing additional facilities on the ground such as a railroad crossing and changing operation schedules. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:解决如果当前运行在具有低速柴油车辆的行驶模式的本地线上的混合动力车辆直接进入电动车辆的服务区域,以便以快速且紧凑的时间表运行 其他电动车赶上混合动力汽车,从而使运行计划全部混合。 解决方案:一种用于驱动铁路车辆的装置设置有用于检测当前服务路线的装置12。 根据由装置12检测到的服务路线,由控制器11选择最佳运行模式,然后切换每个装置的指令值,以允许铁路车辆以与其它柴油车辆相同的运行模式运行 和电动车辆根据检测到的服务路线。 这样,柴油车可以很容易地被混合动力车辆代替,而不需要在地面上安装额外的设施,例如铁路道口和改变的运行时间表。 版权所有(C)2010,JPO&INPIT
    • 5. 发明专利
    • Power conversion apparatus equipped with gate drive for semiconductor switching element
    • 配有门控驱动器的电源转换装置用于半导体开关元件
    • JP2009296732A
    • 2009-12-17
    • JP2008146091
    • 2008-06-03
    • Hitachi Ltd株式会社日立製作所
    • KONISHIDE MASAOMIKONO YASUHIKONAGASU MASAHIRO
    • H02M1/08
    • PROBLEM TO BE SOLVED: To solve the problem that excessive current is interrupted because IGBT is turned off in an arm short-circuit state and that IGBT is destroyed due to an overvoltage occurring in parasitic inductance of wiring with a sudden change of current of an arm short circuit preventing circuit in the prior art.
      SOLUTION: A power conversion apparatus includes two IGBT connected in series, a gate driver driving respective IGBT, a command part generating a driving signal of IGBT and outputting the driving signal to the gate driver, a gate resistor which is arranged in the gate driver and controls switching speed of IGBT and a simultaneous ON preventing circuit which turns off at least one IGBT in accordance with a control signal when the control signal from the other gate driver is input to one gate driver and two IGBT are simultaneously turned on. The simultaneous ON preventing circuit has a function for changing a gate resistance value by combination of respective states of a driving command and the control signal.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为了解决由于IGBT在短路状态下关断而导致过电流中断的问题,并且IGBT由于电流的突然变化引起的布线的寄生电感中的过电压而被破坏 的现有技术中的臂短路防止电路。 解决方案:电力转换装置包括串联连接的两个IGBT,驱动各自的IGBT的栅极驱动器,产生IGBT的驱动信号并将驱动信号输出到栅极驱动器的指令部分,布置在栅极电阻器 栅极驱动器和控制IGBT的开关速度,并且当来自另一个栅极驱动器的控制信号被输入到一个栅极驱动器并且两个IGBT同时导通时,根据控制信号来断开至少一个IGBT的同时导通防止电路。 同时ON防止电路具有通过组合驱动命令的各个状态和控制信号来改变栅极电阻值的功能。 版权所有(C)2010,JPO&INPIT
    • 6. 发明专利
    • Vehicle controlling apparatus, vehicle controlling method and vehicle
    • 车辆控制装置,车辆控制方法和车辆
    • JP2009055784A
    • 2009-03-12
    • JP2008293823
    • 2008-11-17
    • Hitachi LtdHitachi Mito Engineering Co Ltd日立水戸エンジニアリング株式会社株式会社日立製作所
    • ISHIDA SEIJISATO YUTAKAMIYAUCHI TSUTOMUTOYODA EIICHISHIMADA MOTOMINAGASU MASAHIRO
    • B60L7/22B60L11/08
    • Y02T10/7077
    • PROBLEM TO BE SOLVED: To achieve highly efficient driving utilizing regenerative power and to obtain a maintenance-reduced, inexpensive vehicle controlling apparatus and vehicle. SOLUTION: The apparatus is provided with a motor 1, an alternating current generator 2 to be driven by the motor 1, a first power converter 3a to convert alternating current power output from the alternating current generator 2 into direct current power, a second power converter 6 to convert the direct current power into the alternating current power having a variable frequency, and an alternating-current electric motor 7 to be driven by the second power converter 6. Furthermore, the apparatus has a resistor 401 and a switching means 402 and is provided with a break chopper 4 to be connected to the direct current side of the second power converter 6 and a storage battery 5 to be connected to the direct current side of the second power converter 6. The regenerative power acquired from the alternating-current electric motor 7 is stored or consumed by the motor 1, the break chopper 4 and the storage battery 5. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:为了实现利用再生电力的高效率驱动并获得维护减少的便宜​​的车辆控制装置和车辆。 解决方案:该装置设置有电动机1,由电动机1驱动的交流发电机2,将从交流发电机2输出的交流电力转换为直流电力的第一电力变换器3a, 将直流电力转换成具有可变频率的交流电力的第二电力转换器6和由第二电力转换器6驱动的交流电动机7.此外,该装置具有电阻器401和开关装置 402,并且设置有连接到第二电力转换器6的直流侧的断路器4和要连接到第二电力转换器6的直流侧的蓄电池5.从交替地获取的再生电力 电动马达7被电动机1,断路器4和蓄电池5储存或消耗。(C)2009,JPO&INPIT
    • 8. 发明专利
    • Inverter controller
    • 逆变器控制器
    • JP2007185025A
    • 2007-07-19
    • JP2006000717
    • 2006-01-05
    • Hitachi Ltd株式会社日立製作所
    • TACHIHARA SHUICHINAGASU MASAHIROTOYODA EIICHITERUNUMA MUTSUHIROSHIMADA MOTOMI
    • H02P21/00H02P27/04
    • PROBLEM TO BE SOLVED: To reduce a motor constant error when an inverter is restarted for the enhancement of performance for controlling restart of the inverter with respect to an inverter controller having a motor constant correcting computing means for correcting a motor constant error. SOLUTION: The inverter controller is so constructed that the following is implemented: when an inverter is at a stop, a motor constant correction value is interpolated using a time that lapsed after the inverter was stopped or information on speed while the inverter is at a stop; and the thus obtained value is set as an initial value of the motor constant correction value used when the inverter is restarted. Thus, a motor constant error produced when the inverter is restarted is reduced, and controlling performance, such as torque accuracy and current accuracy, can be enhanced. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:为了提高用于控制逆变器重启的性能,为了减少电动机常数误差,相对于具有用于校正电动机常数误差的电动机常数校正计算装置的逆变器控制器,减小电动机常数误差。 解决方案:变频器控制器的结构如下:当变频器停机时,变频器停机后经过的时间或变频器的速度信息,电机常数校正值被插值 停下来 将这样获得的值设定为在逆变器重启时使用的电动机常数校正值的初始值。 因此,减少了逆变器重启时产生的电动机常数误差,能够提高转矩精度,电流精度等控制性能。 版权所有(C)2007,JPO&INPIT