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    Electric vehicle drive system and drive method
    12.
    发明公开
    Electric vehicle drive system and drive method 失效
    Antriebssystem und Antriebsverfahren eines elektrischen Fahrzeugs。

    公开(公告)号：EP0622264A3

    公开(公告)日：1995-03-29

    申请号：EP94106581.5

    申请日：1994-04-27

    申请人： HITACHI, LTD.

    发明人： Mutoh, Nobuyoshi ,  Masaki, Ryoso ,  Miyazaki, Taizou ,  Tajima, Fumio ,  Ohmae, Tsutomu

    IPC分类号： B60L11/18

    CPC分类号： B60L15/20 ,  B60L11/18 ,  Y02T10/645 ,  Y02T10/646 ,  Y02T10/7005 ,  Y02T10/7275

    摘要： The object of the present invention is to provide an electric drive system which ensures effective generation of torque from the start to the maximum speed, and extended cruising distance and upgraded running performances. The drive system according to the present invention is characterized in that, in an electric vehicle to be driven by the wheels which are driven by the rotary output of two or more motors (5,6), said two or more motors (5,6) comprise at least two different types of motors, and the system is provided with the control means (10) to adjust the share of the vehicle driving force to be generated by each of said motors in conformity to the running state of said vehicle. These two or more motors (5,6) comprise a combination of a low speed drive motor (5) and high speed drive motor (6), and a highly efficient motor is used as said low speed motor (5), while a motor having a greater capacity and greater base speed than said low speed drive motor (5) is used as the high speed drive motor (6). The share of the driving force of said vehicle is controlled by the control means such that up to the maximum torque is generated by said low speed drive motor (5), with the remaining torque generated by said high speed drive motor (6).

    摘要翻译： 本发明的目的是提供一种确保从起始到最大速度有效产生转矩的电驱动系统，以及延长的巡航距离和升级的运行性能。 根据本发明的驱动系统的特征在于，在由两个或更多个马达（5,6）的旋转输出驱动的由车轮驱动的电动车辆中，所述两个或更多个马达（5,6 ）包括至少两种不同类型的电动机，并且系统设置有控制装置（10），以根据所述车辆的行驶状态来调节由每个所述电动机产生的车辆驱动力的份额。 这两个或更多个电动机（5,6）包括低速驱动电动机（5）和高速驱动电动机（6）的组合，并且使用高效率的电动机作为所述低速电动机（5），而电动机 具有比所述低速驱动电动机（5）更大的容量和更大的基准速度被用作高速驱动电动机（6）。 所述车辆的驱动力的份额由所述控制装置控制，使得由所述低速驱动电动机（5）产生的剩余转矩直到由所述低速驱动电动机（5）产生的最大转矩。

    Permanent magnet electrical machine
    15.
    发明公开
    Permanent magnet electrical machine 失效
    电机用永磁体。

    公开(公告)号：EP0169569A2

    公开(公告)日：1986-01-29

    申请号：EP85109343.5

    申请日：1985-07-25

    申请人： HITACHI, LTD.

    发明人： Saito, Koichi ,  Tamura, Akira ,  Kawano, Takuro ,  Tajima, Fumio ,  Katayama, Hiroshi ,  Miyashita, Kunio ,  Tamura, Raizo ,  Hironaka, Kenichi ,  Sekita, Yoshimi

    IPC分类号： H02K21/22 ,  H02K29/00

    CPC分类号： H02K21/16 ,  H02K21/22 ,  H02K29/03

    摘要： A permanent magnet electric machine such as, for example a motor or generator, including a permanent magnet field member (2), an armature (4) having salient magnetic poles (51,52,53) and armature windings (71,72,73). A greatest common meassure of the number of magnetic poles of the field member (2) and the salient magnetic poles (51,53) having the armature windings (71-73) differs from the number of magnetic poles. A group of grooves (8a,8b) formed between the salient magnetic poles having an interval of 2 3Mπ, with M being an integer which is not a multiple of three. To reduce the occurence of a cogging torque, auxiliary grooves (8c,8d) are provided on the surface of the salient poles (51-53) at positions which are spaced apart from positions of the grooves by π 3K + π 6, in terms of an electrical angle, with K being an integer.

    Electric pump
    17.
    发明公开
    Electric pump 审中-公开
    电动泵

    公开(公告)号：EP2166231A3

    公开(公告)日：2010-04-14

    申请号：EP09177510.6

    申请日：2007-07-23

    申请人： Hitachi Ltd.

    发明人： Tajima, Fumio ,  Kitamura, Masashi ,  Enomoto, Yuji ,  Nomoto, Yuji ,  Takarai, Kenya

    IPC分类号： F04D13/06 ,  H02K1/02 ,  H02K1/14 ,  H02K1/20 ,  H02K7/14 ,  H02K21/14

    CPC分类号： F04D13/064 ,  B60L1/003 ,  B60L1/02 ,  B60L3/0061 ,  B60L11/14 ,  B60L2210/40 ,  B60L2240/34 ,  B60L2240/36 ,  B60L2240/425 ,  B60L2270/142 ,  B60L2270/145 ,  F04D13/0633 ,  H02K1/02 ,  H02K1/145 ,  H02K5/12 ,  H02K7/14 ,  H02K21/145 ,  Y02T10/641 ,  Y02T10/642 ,  Y02T10/70 ,  Y02T10/7077 ,  Y02T10/7241

    摘要： The present invention provides a compact electric motor, thus ensuring improved in-vehicle mountability. A pump is driven by all motor. The pump has a coil 14 deposed in a ring form around and along a stator core 13. The stator core 13 has a plurality of claw magnetic poles which extend alternately from both ends of one member of the stator core 13 toward the of the other member thereof. The electric motor drives the pump by rotating a rotor 16 disposed to face the inner of the stator core 13 as the coil 14 is energized. The present invention provides a compact electric pump with no coil ends, thus ensuring improved in-vehicle mountability. Further, the present invention permits efficient cooling of the electric motor adapted to discharge a cooling medium. Still further, the present invention permits use of a stator core made from a compressed powder core by molding with resin. In addition, the molded portion also serves as a partition separating pump and motor units.

    摘要翻译： 本发明提供了一种紧凑型电动机，因此确保了改进的车内可安装性。 一台泵由所有电机驱动。 该泵具有围绕定子铁芯13并且沿着定子铁芯13环形布置的线圈14.定子铁芯13具有多个爪形磁极，该多个爪形磁极从定子铁芯13的一个构件的两端向另一个构件的两端交替地延伸 它们。 当线圈14通电时，电动机通过转动面对定子铁心13的内部设置的转子16来驱动泵。 本发明提供了一种不带线圈端部的小型电动泵，因此确保了改善的车内可安装性。 此外，本发明允许适于排放冷却介质的电动机的有效冷却。 此外，本发明允许使用通过用树脂模制而由压缩的粉末芯制成的定子芯。 另外，模制部分还用作分隔泵和马达单元的隔板。

    Electric machine with permanent magnets arrangement for reducing torque pulsation
    19.
    发明公开
    Electric machine with permanent magnets arrangement for reducing torque pulsation 审中-公开
    电机与永久磁铁的布置，以减少扭矩脉动

    公开(公告)号：EP2037556A2

    公开(公告)日：2009-03-18

    申请号：EP08020893.7

    申请日：2002-09-19

    申请人： Hitachi Ltd.

    发明人： Matsunobu, Yutaka ,  Tajima, Fumio ,  Kawamata, Shouichi ,  Yasuhara, Takashi

    IPC分类号： H02K1/27

    CPC分类号： H02K29/03 ,  H02K1/276 ,  H02K1/2766

    摘要： A permanent magnet rotating electric machine comprises a stator (20) and a rotor (30) having a plurality of permanent magnets internally in a rotor core (32) and which is rotatably arranged with a predetermined gap to said stator (20), a core shape of the rotor (30) being uniform in a depth (longitudinal) direction, wherein a plurality of permanent magnets are arranged for each pole of said rotor (30) and wherein said plurality of permanent magnets are symmetrical with respect to a rotation direction but irregularly with respect to the depth direction, the rotor having for every pole thereof two radial permanent-magnet inserting holes (34A", 34C") each having a rectangular cross section with the longer side thereof arranged in radial direction of the rotor, and a circumferential permanent-magnet inserting hole (34B") having its longer side arranged in circumferential direction of the rotor, wherein a plurality of permanent magnets (36A", 36B", 36C") are inserted into the permanent-magnet inserting holes.

    摘要翻译： 一种永磁旋转电机包括：可旋转地以预定间隙与所述定子（20），芯布置在定子（20）和在转子芯（32），其具有在内部的永久磁铁的多个A转子（30）和所有的 形状的转子（30）是均匀的，在深度方向（纵向）的，worin永磁体的多元被布置用于所述转子（30）的每个极和worin所述多个永磁体是对称的相对于旋转方向，但 不规则相对于深度方向，具有转子每极而两个径向永久磁铁插入孔（34A“ 34C”），每个具有与所述长边在所述转子的径向方向上排列的矩形横截面，和一个 圆周永久磁铁插入孔（34B“），其具有其长边在所述转子的周向方向布置，worin永久磁铁的多个（36A”，36B“ 36C”）被插入到永久MAGN 等插入孔。

    Electric pump
    20.
    发明公开
    Electric pump 有权
    Elektrische Pumpe

    公开(公告)号：EP1881200A1

    公开(公告)日：2008-01-23

    申请号：EP07014406.8

    申请日：2007-07-23

    申请人： Hitachi, Ltd.

    发明人： Tajima, Fumio ,  Kitamura, Masashi ,  Enomoto, Yuji ,  Nomoto, Yuji ,  Takarai, Kenya

    IPC分类号： F04D13/06 ,  H02K1/02 ,  H02K1/14 ,  H02K1/20 ,  H02K7/14 ,  H02K21/14

    CPC分类号： F04D13/064 ,  B60L1/003 ,  B60L1/02 ,  B60L3/0061 ,  B60L11/14 ,  B60L2210/40 ,  B60L2240/34 ,  B60L2240/36 ,  B60L2240/425 ,  B60L2270/142 ,  B60L2270/145 ,  F04D13/0633 ,  H02K1/02 ,  H02K1/145 ,  H02K5/12 ,  H02K7/14 ,  H02K21/145 ,  Y02T10/641 ,  Y02T10/642 ,  Y02T10/70 ,  Y02T10/7077 ,  Y02T10/7241

    摘要： The present invention provides a compact electric motor, thus ensuring improved in-vehicle mountability. A pump is driven by an electric motor. The pump has a coil 14 disposed in a ring form around and along a stator core 13. The stator core 13 has a plurality of claw magnetic poles which extend alternately from both ends of one member of the stator core 13 toward the end of the other member thereof. The electric motor drives the pump by rotating a rotor 16 disposed to face the inner periphery of the stator core 13 as the coil 14 is energized. The present invention provides a compact electric pump with no coil ends, thus ensuring improved in-vehicle mountability. Further, the present invention permits efficient cooling of the electric motor adapted to discharge a cooling medium. Still further, the present invention permits the use of a stator core made from a compressed powder core by molding with resin. In addition, the molded portion also serves as a partition separating pump and motor units.

    摘要翻译： 本发明提供一种紧凑型电动机，从而确保车载安装性能的改善。 泵由电动机驱动。 泵具有围绕定子铁芯13设置成环状的线圈14.定子铁芯13具有多个爪状磁极，其从定子铁芯13的一个部件的两端向另一端部交替延伸 其成员。 当线圈14通电时，电动机通过旋转设置在面向定子铁芯13的内周的转子16来驱动泵。 本发明提供一种没有线圈端的紧凑型电动泵，从而确保了车内安装性能的提高。 此外，本发明允许适于排出冷却介质的电动机的有效冷却。 此外，本发明允许通过用树脂模制来使用由压缩粉末芯制成的定子芯。 此外，模制部分还用作分隔泵和电动机单元的隔板。