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公开(公告)号：EP0512531A3
公开(公告)日：1992-12-09
申请号：EP92107689.9
申请日：1992-05-07
发明人： Matsui, Takayuki , Horie, Akira , Kawakami, Tetsuya , Saitoh, Syuuji , Toyota, Eiichi , Sakata,Kazuhiro , Tsuboi,Takashi , Nakamura, Kiyoshi , Nakata, Kiyoshi , Tsutsui, Yoshio , Tanamachi, Tokunosuke
CPC分类号： H02M7/487 , B60L3/0023 , B60L9/22 , B60L2200/26 , B60L2210/20 , H02H7/1225 , Y02T10/725
摘要： In a multi series pulse width modulation inverter arrangement, an inverter arrangement which can continue the inverter operation, in particular, by preventing an overcurrent caused by an erroneous firing of a switching element therein is provided. The multi series inverter arrangement is constituted to be operative in three level mode and in two level mode. Even when an erroneous firing thereof due to noise is generated, the operation of the inverter unit (4) can be continued, the overcurrent due to the erroneous firing is eliminated, the present inverter arrangement can be used under a severe noise environment and outputs an AC output having a small amount of higher harmonics, moreover when the inverter arrangement is operating under a three level mode in a low efficiency region, the operating mode of the inverter arrangement is positively switched from the three level mode to the two level mode, thereby the operating efficiency of the inverter arrangement is enhanced.
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公开(公告)号：EP2756979B1
公开(公告)日：2018-12-26
申请号：EP14151045.3
申请日：2014-01-14
申请人： Hitachi, Ltd.
IPC分类号： B60L3/00
CPC分类号： B60L3/003 , B60L2200/26 , B60L2240/525
摘要： If there is a possibility of a coolant of a cooler being frozen, switching elements are made to generate heat by feeding a current through the switching elements. Two kinds of sensors for measuring a temperature on the side of a heat receiving portion and the side of a heat radiating portion are installed for the cooler. The thermal resistance of the whole of the cooler is calculated from an amount of heat generated by the current of the switching elements, the temperature on the side of the heat receiving portion, the temperature on the side of the heat radiating portion. If the value of the thermal resistance is equal to or higher than a certain value, it is determined that the coolant is frozen. When it is determined that the coolant is frozen, the thermal resistance of the cooler is calculated, and warm-up operation is started.
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公开(公告)号：EP2492132B1
公开(公告)日：2018-07-11
申请号：EP12154437.3
申请日：2012-02-08
申请人： Hitachi, Ltd.
发明人： Araki, Daijiro , Toyota, Eiichi
CPC分类号： B60L11/005 , B60L7/10 , B60L9/22 , B60L2200/26 , Y02T10/7022
摘要： In conventional techniques, it is necessary to use a storage element having a large capacitance such as a lithium-ion battery and there are the problems of reduction in capacitance and cost of the system. Using a capacitor as a storage element, a path of a current flowing in a direction in which the capacitor is discharged is provided by a charge/discharge device in addition to a path of a current flowing in a direction in which the capacitor is charged by a high speed-range electric braking function, whereby a current corresponding to a difference in potential between a regenerative current (current flowing in the direction in which the capacitor is charged) and a chopper current from the charge/discharge device (current flowing in the direction in which the capacitor is discharged) is made to flow in the capacitor 7.
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公开(公告)号：EP2305509B1
公开(公告)日：2018-01-24
申请号：EP10251487.4
申请日：2010-08-24
申请人： Hitachi, Ltd.
CPC分类号： B60L9/22 , B60L11/1801 , B60L2200/26 , Y02T10/7005 , Y02T10/92
摘要： The invention provides a railway vehicle comprising a switching device and an electric storage device, and when contact break between an electric power line and a power collector occurs, the switching device is activated to perform charging or discharging of the electric storage device, wherein after the vehicle recovers from the contact break state, the switching device is stopped so as to cut down fruitless consumption of energy. The control system of an electric vehicle comprises a switching signal output device composed of a DC voltage detector for detecting a voltage value of a power converter for controlling the operation of a main motor and a contact point of the switching device, a travel distance computing device for computing a travel distance of the main vehicle, and a contact break position database storing in advance the position in which contact break occurs, wherein the device predicts entry of the vehicle in a section where contact break occurs by verifying the travel distance value and the contact break position database, and outputs a switching signal. The switching device is activated or stopped based on the switching signal.
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公开(公告)号：EP2756979A2
公开(公告)日：2014-07-23
申请号：EP14151045.3
申请日：2014-01-14
申请人： Hitachi, Ltd.
IPC分类号： B60L3/00
CPC分类号： B60L3/003 , B60L2200/26 , B60L2240/525
摘要： If there is a possibility of a coolant of a cooler being frozen, switching elements are made to generate heat by feeding a current through the switching elements. Two kinds of sensors for measuring a temperature on the side of a heat receiving portion and the side of a heat radiating portion are installed for the cooler. The thermal resistance of the whole of the cooler is calculated from an amount of heat generated by the current of the switching elements, the temperature on the side of the heat receiving portion, the temperature on the side of the heat radiating portion. If the value of the thermal resistance is equal to or higher than a certain value, it is determined that the coolant is frozen. When it is determined that the coolant is frozen, the thermal resistance of the cooler is calculated, and warm-up operation is started.
摘要翻译： 如果存在冷却器的冷却剂的可能性，则通过将电流馈送通过开关元件而使开关元件产生热量。 用于测量热接收部分侧和散热部分侧的温度的两种传感器被安装用于冷却器。 整个冷却器的热阻由开关元件的电流产生的热量，热接收部分侧的温度，散热部分一侧的温度计算。 如果热阻值等于或高于某一值，则确定冷却剂被冷冻。 当确定冷却剂被冻结时，计算冷却器的热阻，并开始预热操作。
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公开(公告)号：EP2193969B1
公开(公告)日：2012-02-08
申请号：EP09014997.2
申请日：2009-12-03
申请人： Hitachi Ltd.
CPC分类号： B60W20/13 , B60K6/46 , B60L1/003 , B60L1/02 , B60L1/14 , B60L7/14 , B60L11/123 , B60L11/1861 , B60L11/1868 , B60L2200/26 , B60L2210/40 , B60L2260/54 , B60W10/06 , B60W10/08 , B60W10/26 , B60W20/00 , B60W30/1882 , B60W2510/244 , B60W2520/10 , B60W2520/28 , B60W2710/0677 , Y02T10/6217 , Y02T10/6286 , Y02T10/7005 , Y02T10/7044 , Y02T10/7066 , Y02T10/7077 , Y02T10/7241
摘要： A vehicle can achieve a reduction of laod of a storage battery device (105) and reduce a loss in connection with a charge/discharge of the storage battery device (105). In the vehicle, an engine output is equal to or less than an energy for driving a motor (107), or, the vehicle is driven without a charge of the storage battery device (105) from an engine (101) by way of controlling the engine output so as to be consumed all in a device except for the storage battery device (105).
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公开(公告)号：EP1619782A3
公开(公告)日：2009-05-06
申请号：EP05004079.9
申请日：2005-02-24
申请人： Hitachi, Ltd.
IPC分类号： H02M1/00
CPC分类号： H02M1/38
摘要： This invention provides a power converter system comprising; switching devices for connecting d.c. and a.c voltage terminals, a pulse generator (200,500) for generating signals to drive said switching devices, drive circuits to drive said switching devices in response to driving signals from said signal generator, and a transmission circuit for interconnecting said drive circuits, wherein the delay time for the drive circuit to turn off the switching device after receiving an OFF signal is greater than the delay time for the drive circuit to turn on the switching device after receiving an ON signal.
A high reliability power converter system that assures prevention of arm short circuit is realized.-
28.发明公开
公开(公告)号：EP1619782A2
公开(公告)日：2006-01-25
申请号：EP05004079.9
申请日：2005-02-24
申请人： Hitachi, Ltd.
IPC分类号： H02M1/00
CPC分类号： H02M1/38
摘要： This invention provides a power converter system comprising; switching devices for connecting d.c. and a.c voltage terminals, a pulse generator (200,500) for generating signals to drive said switching devices, drive circuits to drive said switching devices in response to driving signals from said signal generator, and a transmission circuit for interconnecting said drive circuits, wherein the delay time for the drive circuit to turn off the switching device after receiving an OFF signal is greater than the delay time for the drive circuit to turn on the switching device after receiving an ON signal.
A high reliability power converter system that assures prevention of arm short circuit is realized.摘要翻译： 本发明提供了一种功率转换器系统，包括： 用于连接直流电的开关装置 和交流电压端子，用于产生信号以驱动所述开关装置的脉冲发生器（200,500），响应于来自所述信号发生器的驱动信号驱动所述开关装置的驱动电路;以及用于互连所述驱动电路的传输电路，其中延迟 在接收到OFF信号之后驱动电路关闭开关装置的时间大于在接收到ON信号之后驱动电路接通开关装置的延迟时间。 实现了可靠的电力转换系统，可以防止臂短路。
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29.发明授权Control apparatus of power converter and control apparatus of electric motor vehicle 失效控制用于与电动机功率转换器和控制装置，用于车辆装置
公开(公告)号：EP0567082B1
公开(公告)日：1997-08-27
申请号：EP93106405.9
申请日：1993-04-20
申请人： HITACHI, LTD.
发明人： Nakata, Kiyoshi , Tanamachi, Tokunosuke , Terunuma, Mutsuhiro , Suzuki, Masato , Nakamura, Kiyoshi , Toyota, Eiichi , Saitou, Syuuji , Matsui, Takayuki
IPC分类号： H02M7/48
CPC分类号： H02M7/487 , B60L9/22 , B60L2200/26
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30.发明公开Power converting device for reducing induction trouble 失效Leistungswandlervorrichtung mit geringerInduktiosstörung。
公开(公告)号：EP0630777A1
公开(公告)日：1994-12-28
申请号：EP94109098.7
申请日：1994-06-14
申请人： HITACHI, LTD.
发明人： Horie, Akira , Saitou, Syuuji , Matui, Takayuki , Itoh, Ken , Tsuboi, Takashi , Toyota, Eiichi
CPC分类号： B60L15/007 , B60L3/00 , B60L9/00 , B60L2200/26 , B60L2220/12 , Y02T10/644 , Y02T10/645 , Y10T307/707
摘要： In a power converter, the inverter device casing (20) and a heat receiving plate (18a, 18b) are insulated, and the heat receiving plate (18a, 18b) and a filter capacitor (7) are connected through a predetermined inductance. Since higher-harmonic current is bypassed to the filter capacitor (7) through a resonance filter which is constructed of the electrostatic capacity in a switching element and an inductance, induction trouble, which might otherwise be caused by higher-harmonic current leaking to the outside of an inverter device, can be reduced by a simple construction.
摘要翻译： 在功率转换器中，逆变器装置壳体（20）和受热板（18a，18b）被绝缘，并且受热板（18a，18b）和滤波电容器（7）通过预定的电感连接。 由于高次谐波电流通过由开关元件中的静电电容和电感构成的谐振滤波器旁路到滤波电容器（7），否则可能由高次谐波电流泄漏到外部引起的感应故障 的逆变器装置，可以通过简单的结构来减少。
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