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1. 发明专利

JP2007195334A Railcar drive device 有权
标题翻译： RAILCAR驱动装置
公开(公告)号：JP2007195334A
公开(公告)日：2007-08-02
申请号：JP2006011154
申请日：2006-01-19
申请人： East Japan Railway Co , Hitachi Ltd , 東日本旅客鉄道株式会社 , 株式会社日立製作所
发明人： SHIMADA MOTOMI , TOYODA EIICHI , KANEKO TAKASHI , MIYAUCHI TSUTOMU , NOMOTO HIROSHI , SHIMAMUNE RYOHEI , FURUTA RYOSUKE , OMURA TETSURO
IPC分类号： B60L11/12 , B60W10/08 , B60K6/46 , B60W20/00 , B61C3/02 , B61C5/00 , B61C7/04 , B61C9/24
CPC分类号： Y02T10/6217 , Y02T30/12 , Y02T30/16
摘要： PROBLEM TO BE SOLVED: To maintain a power generation state at the output point and rotational speed with which an engine can obtain maximum operational efficiency, in a railcar drive device of a series hybrid system. SOLUTION: This drive device is provided with the engine 1, a generator 2, a converter 3, a system unification control portion 9, an engine control portion 19, a constant power controller 20, and a PMW control portion 21. The control portion 19 control the engine 1 by outputting a fuel injection amount command F_eng based on a command Se of the output P_eng of the engine 1 from the unification control portion 9. The PMW controller 21 gives a gate signal GP of switching elements, which generates load capacity P_gen of the generator 2 based on a command Sc of the load capacity P_gen of the generator 2 from the unification control portion 9. The output characteristics to the rotational speed of the engine 1 is configured to decrease the output P_eng when the rotational speed increases more than a specified rotational speed and to increase the output when the speed decreases. The output command Sc to the converter 3 performs constant power generation control that makes the load capacity P_gen of the generator 2 constant irrespective of the rotational speed. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：在串联混合动力系统的轨道车辆驱动装置中，为了保持输出点处的发电状态和发动机可以获得最大运行效率的转速。解决方案：该驱动装置设置有发动机1，发电机2，转换器3，系统统一控制部分9，发动机控制部分19，恒定功率控制器20和PMW控制部分21。控制部分19通过基于来自统一控制部分9的发动机1的输出P_eng的命令Se输出燃料喷射量指令F_eng来控制发动机1.PMW控制器21给出开关元件的栅极信号GP，其产生基于来自统一控制部分9的发电机2的负载能力P_gen的指令Sc，发电机2的负载能力P_gen。发动机1的转速的输出特性被配置为当转速增加超过指定的转速并且当速度降低时增加输出。转换器3的输出指令Sc执行使发电机2的负载能力P_gen恒定的恒定发电控制，而与转速无关。版权所有（C）2007，JPO＆INPIT

2. 发明专利

JP2008054408A Driver of rail vehicle 有权
标题翻译：铁路车辆司机
公开(公告)号：JP2008054408A
公开(公告)日：2008-03-06
申请号：JP2006227585
申请日：2006-08-24
申请人： East Japan Railway Co , Hitachi Ltd , 東日本旅客鉄道株式会社 , 株式会社日立製作所
发明人： SHIMADA MOTOMI , TOYODA EIICHI , KANEKO TAKASHI , MIYAUCHI TSUTOMU , NOMOTO HIROSHI , SHIMAMUNE RYOHEI , FURUTA RYOSUKE , OMURA TETSURO
IPC分类号： B60L11/12 , B61C3/02 , B61C5/00 , B61C7/04
CPC分类号： B61C7/04 , B60K6/46 , B60L11/123 , B60L11/14 , B60L11/1861 , B60L15/2045 , B60L2200/26 , B60L2240/421 , B60L2240/547 , B60L2240/549 , B60W10/06 , B60W10/08 , B60W10/26 , B60W20/00 , B60W20/15 , H02P21/0089 , H02P21/06 , Y02T10/6217 , Y02T10/6286 , Y02T10/643 , Y02T10/645 , Y02T10/7005 , Y02T10/7044 , Y02T10/705 , Y02T10/7283 , Y02T30/16
摘要： PROBLEM TO BE SOLVED: To provide an environment friendly driver of series hybrid system rail vehicle in which a situation capable of engine stop is judged appropriately, and an idle stop control system ensuring stabilized powering performance while taking into account response of engine power generation is achieved while reducing fuel consumption and engine noise. SOLUTION: A system general control section in the driver of rail vehicle judges whether generation power of an engine is required or not based on the rotational speed of a generator, the rotational speed of a motor, and an internal state signal obtained from a power accumulator and controls power generation state by an operation command to the engine and an operation command to a converter. Furthermore, when generation power of the engine is not required, the system general control section judges whether the engine can be stopped or not, and can give a command for stopping the engine by an operation command to the engine. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种能够适当地判断能够发动机停止的情况的串联混合动力系统轨道车辆的环境友好的驾驶员，以及在考虑发动机功率的响应的同时确保稳定的动力性能的怠速停止控制系统实现了一代，同时降低了燃油消耗和发动机噪音。解决方案：轨道车辆驾驶员中的系统总体控制部分根据发电机的转速，电动机的转速以及从内部状态信号获得的内部状态信号来判断发动机的发电功率是否需要蓄电装置，通过对发动机的运转指令来控制发电状态以及对转换器的运转指令。此外，当不需要发动机的发电时，系统通用控制部判断发动机是否可以停止，并且能够通过对发动机的运转指令给出停止发动机的指令。版权所有（C）2008，JPO＆INPIT

3. 发明专利

JP2004312863A Controller for power converter of rolling stock 有权
标题翻译：滚动电源转换器控制器
公开(公告)号：JP2004312863A
公开(公告)日：2004-11-04
申请号：JP2003102436
申请日：2003-04-07
申请人： East Japan Railway Co , Hitachi Ltd , 東日本旅客鉄道株式会社 , 株式会社日立製作所
发明人： SUZUKI MASAHITO , SHIMADA MOTOMI , KANEKO TAKASHI , TOYODA EIICHI , OSAWA MITSUYUKI , ABIKO HIROSHI , TERAYA SHINJI , FUJII TAKETO
IPC分类号： B61C9/24 , B60L3/04 , B60L9/18 , B60L11/12 , B60L11/18 , H01M10/44
CPC分类号： Y02T10/7005 , Y02T10/7241
摘要： PROBLEM TO BE SOLVED: To provide a device which enables the escaping travel to a neighboring station even in case that some batteries are disabled in the case where batteries are used for a hybrid rolling stock where a diesel rail-car and an electric rolling stock are united together. SOLUTION: In this controller for the power converter of a rolling stock, two or more pieces of batteries are connected in series to make one unit, and two or more units are connected in parallel to constitute a battery device. Moreover, in one unit, a semiconductor switch is inserted in series with a battery, and in case an abnormality occurs in the battery during normal operation, the unit containing the abnormal battery can be electrically cut off. Furthermore, in one unit, a parallel connection body of a resistor and a switch is inserted in series with the battery and the semiconductor switch, and also when connecting two or more units in parallel in the first place, they are connected via the above resistor, and after the voltage is balanced, the resistor is short-circuited, thereby preventing the deterioration of the battery. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：即使在电池用于混合动力车辆的情况下，即使在一些电池被禁用的情况下，即使在柴油轨道车和电动车辆的混合动力车辆的情况下，也可以提供一种能够逃逸到邻近车站的装置机车车辆联合在一起。
解决方案：在这种用于机车车辆的电力转换器的控制器中，两个或更多个电池串联连接成一个单元，并且两个或更多个单元并联连接以构成电池装置。此外，在一个单元中，半导体开关与电池串联插入，并且在正常操作期间在电池中发生异常的情况下，可以断电包含异常电池的单元。此外，在一个单元中，电阻器和开关的并联连接体与电池和半导体开关串联插入，并且当首先并联连接两个或更多个单元时，它们通过上述电阻器并且在电压平衡之后，电阻器短路，从而防止电池的劣化。版权所有（C）2005，JPO＆NCIPI

4. 发明专利

JP2010011683A Device for driving railroad vehicle 有权
标题翻译：用于驱动铁路车辆的装置
公开(公告)号：JP2010011683A
公开(公告)日：2010-01-14
申请号：JP2008170293
申请日：2008-06-30
申请人： East Japan Railway Co , Hitachi Ltd , 東日本旅客鉄道株式会社 , 株式会社日立製作所
发明人： KONISHIDE MASAOMI , SHIMADA MOTOMI , NAGASU MASAHIRO , TOYODA EIICHI , NOMOTO HIROSHI , SHIMAMUNE RYOHEI , FURUTA RYOSUKE , OMURA TETSURO
IPC分类号： B60L15/20 , B60L9/18 , B60L11/12 , B60L11/18 , B61C3/02 , B61C7/04
CPC分类号： Y02T10/7005 , Y02T10/7241 , Y02T10/7275 , Y02T30/16
摘要： 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
摘要翻译：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

JP2008054387A Controller of electric vehicle 有权
标题翻译：电动车控制器
公开(公告)号：JP2008054387A
公开(公告)日：2008-03-06
申请号：JP2006226342
申请日：2006-08-23
申请人： East Japan Railway Co , Hitachi Ltd , 東日本旅客鉄道株式会社 , 株式会社日立製作所
发明人： SHIMADA MOTOMI , TOYODA EIICHI , KANEKO TAKASHI , MIYAUCHI TSUTOMU , NOMOTO HIROSHI , SHIMAMUNE RYOHEI , FURUTA RYOSUKE , OMURA TETSURO
IPC分类号： B60L11/18 , B60L11/12
CPC分类号： Y02T10/7005 , Y02T10/7241 , Y02T90/168 , Y04S30/12
摘要： PROBLEM TO BE SOLVED: To provide a controller of an electric vehicle in which regenerative energy can be absorbed effectively by assuring predetermined acceleration performance.
SOLUTION: The controller of an electric vehicle comprises an engine, a generator, a converter, an inverter means, a power accumulation means, a control means, a motor, a unit 62 for operating a reference rotational speed signal Fr, and a section 52 for calculating the running position distance in kilometers Dis_h with reference to each station distance in kilometers by referring to a mileage obtained by integrating the Fr and each station distance in kilometers database and recognizing arrival at station. It is further provided with a section 53 for calculating an average forward inclination Inc_h, i.e. an inclination amount for every predetermined distance interval, with reference to an inclination database by receiving the Dis_h, and a section 54 for selecting a marginal charge limit pattern Chg_pat and a marginal discharge limit pattern Dch_pat for making possible to absorb an appropriate regeneration power based on the Inc_h.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种通过确保预定的加速性能可以有效地吸收再生能量的电动车辆的控制器。解决方案：电动车辆的控制器包括发动机，发电机，转换器，逆变器装置，蓄电装置，控制装置，电动机，用于操作参考转速信号Fr的单元62，以及参照每公里距离（公里）计算出行驶位置距离（公里Dis_h）的部分52，参考通过将Fr和每个站距离整合在公里数据库中并通过车站到达而获得的里程。另外还设有一个部分53，用于通过接收Dis_h来参考倾斜数据库计算每个预定距离间隔的平均前进倾斜度Inc_h，即每个预定距离间隔的倾斜量;以及用于选择边缘充电限制模式Chg_pat的部分54和边缘放电限制模式Dch_pat，用于根据Inc_h吸收适当的再生功率。版权所有（C）2008，JPO＆INPIT

6. 发明专利

JP2011061880A System for driving rolling stock 有权
标题翻译：驱动滚筒系统
公开(公告)号：JP2011061880A
公开(公告)日：2011-03-24
申请号：JP2009205301
申请日：2009-09-04
申请人： East Japan Railway Co , Hitachi Ltd , 東日本旅客鉄道株式会社 , 株式会社日立製作所
发明人： TOYODA EIICHI , SHIMADA MOTOMI , KANEKO TAKASHI , MIYAUCHI TSUTOMU , NOMOTO HIROSHI , FURUTA RYOSUKE
IPC分类号： B60L11/18 , B60K6/46 , B60L11/08 , B60L11/12 , B61C3/02 , B61C5/00 , B61C7/04
CPC分类号： Y02T10/6217 , Y02T10/7005 , Y02T10/7241 , Y02T30/16
摘要： PROBLEM TO BE SOLVED: To reduce an imbalance between a supplier side of power or energy and a consumer side on a system, when the imbalance exceeds the performance of an energy storage apparatus in a DC unit for connecting a converter to an inverter of a serially connected hybrid system. SOLUTION: The driving system has a balance control section for commanding the inverter to reduce its output when a charging and discharging current to the energy storage apparatus in powering or regenerating exceeds the maximum permissible charging and discharging current of the energy storage apparatus or when it becomes lower than the permissible charging and discharging current, and for commanding an engine to perform an engine brake operation and commanding the converter to control a generator to perform a motor-driven operation and to absorb energy from the DC unit when the energy storage apparatus exceeds the maximum permissible charging amount, thereby reducing the imbalance between input and output of the DC unit. Thus, charging and discharging, which exceeds the excessive charging and discharging current output of the energy storage apparatus and the limit of charging amount, can be prevented. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了减少电力供应方或能量供应方与系统上的消费者之间的不平衡，当不平衡超过用于将转换器连接到逆变器的DC单元中的能量存储装置的性能时的串联混合系统。解决方案：驱动系统具有平衡控制部分，用于在通电或再生能量存储装置的充放电电流超过能量储存装置的最大允许充电和放电电流时指令逆变器减小其输出，或当其变得低于允许的充放电电流时，并且用于指令发动机执行发动机制动操作并且指示转换器控制发电机执行电动机操作并且当能量存储器装置超过最大允许充电量，从而减小DC单元的输入和输出之间的不平衡。因此，可以防止超过储能装置的过充电和放电电流输出的充电和放电以及充电量的限制。版权所有（C）2011，JPO＆INPIT

7. 发明专利

JP2010011685A Drive system for rolling stock 有权
标题翻译：滚动驱动系统
公开(公告)号：JP2010011685A
公开(公告)日：2010-01-14
申请号：JP2008170295
申请日：2008-06-30
申请人： East Japan Railway Co , Hitachi Ltd , 東日本旅客鉄道株式会社 , 株式会社日立製作所
发明人： SHIMADA MOTOMI , TOYODA EIICHI , KANEKO TAKASHI , MIYAUCHI TSUTOMU , NOMOTO HIROSHI , SHIMAMUNE RYOHEI , FURUTA RYOSUKE , OMURA TETSURO
IPC分类号： B60L11/08 , B60L11/18 , B61C3/02 , B61C5/00 , B61C7/04
CPC分类号： Y02T10/7005 , Y02T30/16
摘要： PROBLEM TO BE SOLVED: To provide a drive system for a rolling stock, which can establish compatibility between requirements of ensuring slope climbing performance and reduction in fuel consumption which are necessary for the rolling stock by calculating engine maximum output for ensuring the sufficient slope climbing performance based on each data of maximum power, representative gradient amount and balance speed on a gradient and a range of power storage for achieving both reduction of fuel consumption and prolonging of the service life of a storage battery, and can prolong the service life of the power storage device. SOLUTION: The drive system for a rolling stock includes: an AC power generating means; an inverter means; a power storage means; a first control means for controlling the above means; an electric motor for driving the rolling stock; an information storing means for storing data necessary for driving the rolling stock on a track; and an optimum computation means for calculating engine output responsibility meeting the proper performance for driving on the track and a power storing reference meeting proper fuel consumption for driving on the track on the basis of the information owned by the information storing means. The drive system controls the output of the engine based on the engine output responsibility outputted from the optimum computation means, and controls the power storing amount of the power storing means based on the power storing reference outputted from the optimum computation means. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于车辆的驱动系统，其可以通过计算发动机最大输出以确保足够的速度来建立确保坡道爬升性能和减少燃油消耗的要求之间的兼容性基于每个最大功率的数据，代表梯度和平衡速度的坡度和一定范围的蓄电量，实现降低燃油消耗并延长蓄电池使用寿命，并可延长使用寿命的蓄电装置。解决方案：用于车辆的驱动系统包括：交流发电装置; 逆变器装置; 蓄电装置; 用于控制上述装置的第一控制装置; 用于驱动车辆的电动机; 信息存储装置，用于存储在轨道上驱动车辆所需的数据; 以及最佳计算装置，用于根据信息存储装置所拥有的信息来计算满足用于在轨道上行驶的适当性能的发动机输出负载和满足用于在轨道上行驶的适当燃料消耗的功率存储基准。驱动系统基于从最佳运算单元输出的发动机输出负荷来控制发动机的输出，并且基于从最佳运算单元输出的功率存储基准来控制蓄电装置的蓄电量。版权所有（C）2010，JPO＆INPIT

8. 发明专利

JP2010011684A Drive system for rolling stock 有权
标题翻译：滚动驱动系统
公开(公告)号：JP2010011684A
公开(公告)日：2010-01-14
申请号：JP2008170294
申请日：2008-06-30
申请人： East Japan Railway Co , Hitachi Ltd , 東日本旅客鉄道株式会社 , 株式会社日立製作所
发明人： SHIMADA MOTOMI , TOYODA EIICHI , KANEKO TAKASHI , SUZUKI MASAHITO , NOMOTO HIROSHI , SHIMAMUNE RYOHEI , FURUTA RYOSUKE , OMURA TETSURO
IPC分类号： B60L3/00 , B60L11/12 , B61C3/02 , B61C7/04
CPC分类号： Y02T10/7005 , Y02T10/7241 , Y02T30/12 , Y02T30/16
摘要： PROBLEM TO BE SOLVED: To provide a drive system for a rolling stock of a series-hybrid system which can suppress heat generation of a power storing device by reducing a square mean value of charging and discharging current of the power storing means and minimizing a conduction loss due to the charging and discharging current. SOLUTION: A system centrally control unit 9 receives as input a driver command NTC_inv outputted from a driver's board 11, an electric motor rotor frequency FR_mtr outputted from a speed calculation section 20b, a driving torque information TRQ_inv outputted from an inverter 4, a battery cell temperature TMP_btr outputted from the power storing device 8 and a battery power storing amount SOC_btr; outputs an engine output command NTC_eng to an engine 1 and a converter power generating command NTC_cnv to a converter 3; and controls the total operation state of these apparatuses so that the power storing amount of a secondary battery may be within a predetermined range. The conduction loss due to charging and discharging current is minimized, thereby achieving unfailing safety and long service life of the power storing means. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种串联混合动力系统的车辆的驱动系统，其能够通过减小蓄电装置的充放电电流的平均值来抑制蓄电装置的发热，以及最小化由于充电和放电电流导致的导通损耗。解决方案：系统集中控制单元9接收从驾驶员板11输出的驾驶员命令NTC_inv作为输入，从速度计算部20b输出的电动机转子频率FR_mtr，从逆变器4输出的驱动转矩信息TRQ_inv，从蓄电装置8输出的电池单元温度TMP_btr和蓄电池蓄电量SOC_btr; 将发动机输出指令NTC_eng输出到发动机1和转换器发电指令NTC_cnv到转换器3; 并且控制这些装置的总体操作状态，使得二次电池的蓄电量可以在预定范围内。由于充放电电流引起的导通损耗最小化，从而实现蓄电装置的安全性和使用寿命长。版权所有（C）2010，JPO＆INPIT

9. 发明专利

JP2008049811A Hybrid railway vehicle 有权
标题翻译：混合铁路车辆
公开(公告)号：JP2008049811A
公开(公告)日：2008-03-06
申请号：JP2006227586
申请日：2006-08-24
申请人： East Japan Railway Co , Hitachi Ltd , 東日本旅客鉄道株式会社 , 株式会社日立製作所
发明人： SUZUKI MASAHITO , TOYODA EIICHI , SHIMADA MOTOMI , KANEKO TAKASHI , NOMOTO HIROSHI , SHIMAMUNE RYOHEI , FURUTA RYOSUKE , OMURA TETSURO
IPC分类号： B61C7/04 , B60L11/08 , B61C3/02
CPC分类号： B60W20/13 , B60K6/46 , B60L11/123 , B60L11/1803 , B60L11/1851 , B60L11/187 , B60L2200/26 , B60L2220/12 , B60L2240/421 , B60W10/08 , B60W20/00 , B60W2510/081 , B60W2510/244 , B60W2510/246 , Y02T10/6217 , Y02T10/642 , Y02T10/7005 , Y02T10/705
摘要： PROBLEM TO BE SOLVED: To provide a hybrid railway vehicle capable of performing starting of an engine using output of a secondary battery. SOLUTION: In the hybrid railway vehicle according to the present invention, a power converter 4 and an induction generator 2 usually used as a DC power source are used as an inverter device and an induction motor, thereby, starting of the engine 1 can be performed without providing a specific device. An engine starting determination part 93 for determining availability of starting of the engine from a voltage of a secondary battery 6 and the number of revolutions of the engine 1 is provided. Even when it is detected that the secondary battery 6 is abnormal by a secondary battery information monitoring part 10, if the secondary battery voltage is within a predetermined range by a voltage detection part 7, starting of the engine is made possible. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供能够使用二次电池的输出来执行发动机起动的混合动力车辆车辆。解决方案：在根据本发明的混合动力车辆中，通常用作直流电源的功率转换器4和感应发电机2被用作逆变器装置和感应电动机，从而起动发动机1 可以在不提供特定设备的情况下执行。提供了用于根据二次电池6的电压和发动机1的转数确定发动机起动的可用性的发动机起动判定部93。即使在二次电池信息监视部10检测到二次电池6异常的情况下，如果二次电池电压由电压检测部7在规定范围内，则能够起动发动机。版权所有（C）2008，JPO＆INPIT

10. 发明专利

JP2004282859A Drive unit for rolling stock 有权
公开(公告)号：JP2004282859A
公开(公告)日：2004-10-07
申请号：JP2003069112
申请日：2003-03-14
申请人： East Japan Railway Co , Hitachi Ltd , 東日本旅客鉄道株式会社 , 株式会社日立製作所
发明人： SHIMADA MOTOMI , TOYODA EIICHI , KANEKO TAKASHI , OSAWA MITSUYUKI , ABIKO HIROSHI , TERAYA SHINJI , FUJII TAKETO
IPC分类号： B61C3/02 , B60L11/08 , B60L11/18 , B61C5/00 , B61C9/24 , B61C17/06
CPC分类号： Y02T10/7005 , Y02T10/7241 , Y02T30/18
摘要： PROBLEM TO BE SOLVED: To provide a drive unit for a rolling stock, which controls human power/cost required for maintenance and also is gentle for global environment, using a power accumulation facility together with a power-generating unit driven by an engine. SOLUTION: This drive unit is equipped with a converter device 3 which converts AC power generated by a generator 2 driven by an engine 1 into DC power, an inverter device 4 which converts DC power into AC power, an accumulator 8 which has the function of charging and discharging the DC power, and a motor 5 which drives the rolling stock. When the inverter device is supplied with the DC power generated by the converter device and the DC power generated by the accumulator, this sets the accumulation energy, accumulated in the accumulator as an accumulation amount management criteria pattern with respect to vehicle speed in a controller 11, and controls the DC power that the converter device generates, according to the difference between the amount of accumulation by this pattern and the amount of actual accumulation of the accumulator. COPYRIGHT: (C)2005,JPO&NCIPI

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