公开(公告)号：US20130009522A1

公开(公告)日：2013-01-10

申请号：US13599060

申请日：2012-08-30

申请人： Takayoshi OZAKI ,  Yusuke Makino ,  Koichi Okada

发明人： Takayoshi OZAKI ,  Yusuke Makino ,  Koichi Okada

IPC分类号： H02K7/14

CPC分类号： H02K7/116 ,  H02K1/2766 ,  H02K5/20 ,  H02K21/16 ,  Y02T10/641

摘要： A drive motor for an electrically powered automotive vehicle is provided which includes a motor stator including a magnetic body and coils. The inner peripheral surface of the magnetic body has a plurality of teeth protruding therefrom, around which the coils are wound. The drive motor also includes a motor housing mounted to an outer periphery of the motor stator to retain the motor stator. The outer peripheral surface of the magnetic body includes cutout portion(s) formed at circumferential location(s) thereof, with the circumferential location(s) being at the same phase as those of the teeth. An inner peripheral surface of the motor housing includes engagement portion(s) formed at circumferential location(s) thereof, with the circumferential location(s) being opposed to the cutout portion(s). The engagement portion(s) is/are engageable with the cutout portion(s). The engagement portion(s) and the cutout portion(s) cooperate with each other to form arresting unit(s) for arresting the motor stator.

摘要翻译： 提供了一种用于电动机动车辆的驱动电机，其包括具有磁体和线圈的电动机定子。 磁性体的内周面具有从其突出的多个齿，卷绕线圈。 驱动电动机还包括安装到电动机定子的外周以保持电动机定子的电动机壳体。 磁体的外周面包括形成在其周向位置的切口部分，其周向位置与齿的相位相同。 马达壳体的内周面包括形成在其周向位置的接合部分，其周向位置与切口部分相对。 接合部分可以与切口部分接合。 接合部分和切口部分彼此协作以形成用于阻止电动机定子的止动单元。

公开(公告)号：US20120319539A1

公开(公告)日：2012-12-20

申请号：US13601309

申请日：2012-08-31

申请人： Takayoshi OZAKI ,  Yusuke Makino ,  Koichi Okada

发明人： Takayoshi OZAKI ,  Yusuke Makino ,  Koichi Okada

IPC分类号： H02K7/14

CPC分类号： H02K1/30 ,  H02K1/28 ,  Y02T10/641

摘要： A drive motor for an electric vehicle is an IPM motor including a motor rotor (25), which is made up of a rotor core portion (29) having an inner peripheral surface, which is mounted externally on a rotary output shaft (24) and which is round in sectional shape, and a permanent magnet (30) disposed within the rotor core portion (29). At a circumferential position which will become proximate to a site of the permanent magnet (30), displaced towards an outer diametric side of the rotor core portion (29), an inner peripheral surface of the rotor core portion (29) and an outer peripheral surface of the rotary output shaft are provided with respective non-round shaped portions (29a, 24a) of a circular shape in section, which form respective parts of a detention or arresting unit (31) for arresting the motor rotor (25) from rotating relative to the rotary output shaft (24).

摘要翻译： 一种用于电动车辆的驱动电动机是包括电动机转子（25）的IPM电动机，该电动机转子由外部设置在旋转输出轴（24）上的具有内周面的转子芯部（29）和 其截面形状为圆形，以及设置在转子芯部（29）内的永磁体（30）。 在靠近永磁体（30）的位置的圆周位置处，朝向转子芯部（29）的外径侧移位，转子芯部（29）的内周面和外周 旋转输出轴的表面设置有圆形截面的相应的非圆形部分（29a，24a），其形成用于阻止马达转子（25）旋转的滞留单元（31）的相应部分 相对于旋转输出轴（24）。

公开(公告)号：US08648504B2

公开(公告)日：2014-02-11

申请号：US12998001

申请日：2009-08-31

申请人： Koichi Okada ,  Takayoshi Ozaki ,  Yusuke Makino

发明人： Koichi Okada ,  Takayoshi Ozaki ,  Yusuke Makino

IPC分类号： H02K9/19

CPC分类号： H02K9/19 ,  H02K1/20

摘要： A vehicle drive motor, capable of efficiently cooling the motor stator without being accompanied by an increase in size, includes a stator having an annular stator core, provided in an inner periphery of a tubular motor casing, and a stator coil provided in the stator core, and a rotor on an inner side of the stator core and rotatable relative to the stator. The motor casing includes an oil supply passage and an oil discharge passage in the motor casing and opening at an inner diametric surface of the motor casing, which are opposite axially to each other. Stator core grooves communicated with the oil supply passage and the oil discharge passage extend axially in an outer diametric surface of the stator core. Accordingly, lubricant oil may flow from the oil supply passage towards the oil discharge passage through the stator core groove.

摘要翻译： 能够有效地冷却电动机定子而不伴随尺寸增大的车辆用驱动电动机包括具有设置在管状电动机壳体的内周的环状的定子铁芯的定子和设置在定子铁芯中的定子线圈 以及位于定子铁芯的内侧并相对于定子旋转的转子。 马达壳体包括在马达壳体中的供油通道和排油通道，并且在马达壳体的内径表面处彼此轴向相反地开口。 与供油通道和排油通道连通的定子芯槽在定子芯的外径表面上轴向延伸。 因此，润滑油可以通过定子芯槽从供油通道流向排油通道。

公开(公告)号：US20110156510A1

公开(公告)日：2011-06-30

申请号：US12998001

申请日：2009-08-31

申请人： Koichi Okada ,  Takayoshi Ozaki ,  Yusuke Makino

发明人： Koichi Okada ,  Takayoshi Ozaki ,  Yusuke Makino

IPC分类号： H02K9/19

CPC分类号： H02K9/19 ,  H02K1/20

摘要： A vehicle drive motor, capable of efficiently cooling the motor stator without being accompanied by an increase in size, includes a stator having an annular stator core, provided in an inner periphery of a tubular motor casing, and a stator coil provided in the stator core, and a rotor on an inner side of the stator core and rotatable relative to the stator. The motor casing includes an oil supply passage and an oil discharge passage in the motor casing and opening at an inner diametric surface of the motor casing, which are opposite axially to each other. Stator core grooves communicated with the oil supply passage and the oil discharge passage extend axially in an outer diametric surface of the stator core. Accordingly, lubricant oil may flow from the oil supply passage towards the oil discharge passage through the stator core groove.

摘要翻译： 能够有效地冷却电动机定子而不伴随尺寸增大的车辆用驱动电动机包括具有设置在管状电动机壳体的内周的环状的定子铁芯的定子和设置在定子铁芯中的定子线圈 以及位于定子铁芯的内侧并相对于定子旋转的转子。 马达壳体包括在马达壳体中的供油通道和排油通道，并且在马达壳体的内径表面处彼此轴向相反地开口。 与供油通道和排油通道连通的定子芯槽在定子芯的外径表面上轴向延伸。 因此，润滑油可以通过定子芯槽从供油通道流向排油通道。

公开(公告)号：US20090127956A1

公开(公告)日：2009-05-21

申请号：US12095933

申请日：2006-11-13

申请人： Takayoshi Ozaki ,  Koichi Okada ,  Hiroyuki Yamada ,  Kenichi Suzuki

发明人： Takayoshi Ozaki ,  Koichi Okada ,  Hiroyuki Yamada ,  Kenichi Suzuki

IPC分类号： H02K7/09 ,  F04B47/08

CPC分类号： F16C39/06 ,  F01D15/005 ,  F01D15/10 ,  F04D25/024 ,  F04D25/0653 ,  F04D29/051 ,  F05D2240/51 ,  F05D2240/515 ,  F16C19/543 ,  F16C25/08 ,  F16C2362/52 ,  F25B9/004 ,  H02K5/1732 ,  H02K7/083 ,  H02K7/09 ,  H02K7/14 ,  H02K11/20

摘要： The device includes a rolling bearing unit supporting a radial load and a magnetic bearing unit supporting an axial load and/or a bearing preload; an electromagnet fitted to a spindle housing so as to confront, on a non-contact basis, a flange shaped thrust plate mounted on a main shaft; a motor rotor of a motor for driving the shaft, and a motor stator opposed to the rotor, the shaft being driven by magnetic or Lorentz forces developed between the rotor and the stator; and a sensor detecting an axial force acting on the bearing unit, and a controller controlling the electromagnet. In this device, the stiffness of a composite spring formed by the bearing unit and a support system for the bearing unit is chosen to be higher than the negative stiffness of a composite spring of a motor part comprised of the electromagnet and the motor.

摘要翻译： 该装置包括支撑径向载荷的滚动轴承单元和支撑轴向载荷和/或轴承预载荷的磁轴承单元; 安装在主轴壳体上的电磁体，以便在非接触的基础上面对安装在主轴上的凸缘形止推板; 用于驱动轴的电动机的电动机转子和与转子相对的电动机定子，该轴由在转子和定子之间产生的磁力或洛伦兹力驱动; 以及传感器，其检测作用在所述轴承单元上的轴向力，以及控制所述电磁体的控制器。 在该装置中，由轴承单元形成的复合弹簧的刚度和用于轴承单元的支撑系统的刚度被选择为高于由电磁体和电动机组成的电动机部件的复合弹簧的负刚度。

公开(公告)号：US20130002179A1

公开(公告)日：2013-01-03

申请号：US13613670

申请日：2012-09-13

申请人： Takayoshi Ozaki ,  Koichi Okada ,  Takeshi Kanda

发明人： Takayoshi Ozaki ,  Koichi Okada ,  Takeshi Kanda

IPC分类号： H02P6/12

CPC分类号： B60T17/18 ,  B60L3/003 ,  B60L3/0084 ,  B60L3/0092 ,  B60L11/14 ,  B60L15/20 ,  B60L2220/44 ,  B60T7/042 ,  B60W50/0205 ,  B60W50/0225 ,  H02K7/116 ,  H02K7/14 ,  Y02T10/641 ,  Y02T10/645 ,  Y02T10/70 ,  Y02T10/7077 ,  Y02T10/72 ,  Y02T10/7275

摘要： To provide a controller apparatus of a type, in which the controller is given the redundancy so that the control of the drive motor can be properly performed at all times when an abnormality such as the failure of the controller occurs, with the reliability consequently increased, a plurality of controllers are provided, each including a power circuit for outputting a drive current for the drive motor and a control circuit, which is a light electric circuit, for controlling the power circuit in response to a motor drive command fed from a higher control. An abnormality determiner is provided for determining an abnormality occurring in the controller then in use according to a prescribed rule and then generating a switching signal. A switch is provided, which is operable in response to the switching signal to change the controller then in a state of functioning relative to the drive motor.

摘要翻译： 为了提供一种类型的控制器装置，其中给予控制器冗余，使得当发生诸如控制器的故障的异常时始终可以适当地执行驱动电动机的控制，从而可靠性因此增加， 提供了多个控制器，每个控制器包括用于输出用于驱动电动机的驱动电流的电源电路和作为光电路的控制电路，用于响应于从较高控制器提供的电机驱动命令来控制电源电路 。 提供了一种异常确定器，用于根据规定的规则确定控制器中正在使用的异常，然后产生切换信号。 提供开关，其可响应于切换信号而操作，以便在相对于驱动马达的功能状态下改变控制器。

公开(公告)号：US07723883B2

公开(公告)日：2010-05-25

申请号：US12095933

申请日：2006-11-13

申请人： Takayoshi Ozaki ,  Koichi Okada ,  Hiroyuki Yamada ,  Kenichi Suzuki

发明人： Takayoshi Ozaki ,  Koichi Okada ,  Hiroyuki Yamada ,  Kenichi Suzuki

IPC分类号： H02K7/09

CPC分类号： F16C39/06 ,  F01D15/005 ,  F01D15/10 ,  F04D25/024 ,  F04D25/0653 ,  F04D29/051 ,  F05D2240/51 ,  F05D2240/515 ,  F16C19/543 ,  F16C25/08 ,  F16C2362/52 ,  F25B9/004 ,  H02K5/1732 ,  H02K7/083 ,  H02K7/09 ,  H02K7/14 ,  H02K11/20

摘要： The device includes a rolling bearing unit supporting a radial load and a magnetic bearing unit supporting an axial load and/or a bearing preload; an electromagnet fitted to a spindle housing so as to confront, on a non-contact basis, a flange shaped thrust plate mounted on a main shaft; a motor rotor of a motor for driving the shaft, and a motor stator opposed to the rotor, the shaft being driven by magnetic or Lorentz forces developed between the rotor and the stator; and a sensor detecting an axial force acting on the bearing unit, and a controller controlling the electromagnet. In this device, the stiffness of a composite spring formed by the bearing unit and a support system for the bearing unit is chosen to be higher than the negative stiffness of a composite spring of a motor part comprised of the electromagnet and the motor.

摘要翻译： 该装置包括支撑径向载荷的滚动轴承单元和支撑轴向载荷和/或轴承预载荷的磁轴承单元; 安装在主轴壳体上的电磁体，以便在非接触的基础上面对安装在主轴上的凸缘形止推板; 用于驱动轴的电动机的电动机转子和与转子相对的电动机定子，该轴由在转子和定子之间产生的磁力或洛伦兹力驱动; 以及传感器，其检测作用在所述轴承单元上的轴向力，以及控制所述电磁体的控制器。 在该装置中，由轴承单元形成的复合弹簧的刚度和用于轴承单元的支撑系统的刚度被选择为高于由电磁体和电动机组成的电动机部件的复合弹簧的负刚度。

公开(公告)号：US08558499B2

公开(公告)日：2013-10-15

申请号：US13613670

申请日：2012-09-13

申请人： Takayoshi Ozaki ,  Koichi Okada ,  Takeshi Kanda

发明人： Takayoshi Ozaki ,  Koichi Okada ,  Takeshi Kanda

IPC分类号： H02P27/04

CPC分类号： B60T17/18 ,  B60L3/003 ,  B60L3/0084 ,  B60L3/0092 ,  B60L11/14 ,  B60L15/20 ,  B60L2220/44 ,  B60T7/042 ,  B60W50/0205 ,  B60W50/0225 ,  H02K7/116 ,  H02K7/14 ,  Y02T10/641 ,  Y02T10/645 ,  Y02T10/70 ,  Y02T10/7077 ,  Y02T10/72 ,  Y02T10/7275

摘要： To provide a controller apparatus of a type, in which the controller is given the redundancy so that the control of the drive motor can be properly performed at all times when an abnormality such as the failure of the controller occurs, with the reliability consequently increased, a plurality of controllers are provided, each including a power circuit for outputting a drive current for the drive motor and a control circuit, which is a light electric circuit, for controlling the power circuit in response to a motor drive command fed from a higher control. An abnormality determiner is provided for determining an abnormality occurring in the controller then in use according to a prescribed rule and then generating a switching signal. A switch is provided, which is operable in response to the switching signal to change the controller then in a state of functioning relative to the drive motor.

摘要翻译： 为了提供一种类型的控制器装置，其中给予控制器冗余，使得当发生诸如控制器的故障的异常时始终可以适当地执行驱动电动机的控制，从而可靠性因此增加， 提供了多个控制器，每个控制器包括用于输出用于驱动电动机的驱动电流的电源电路和作为光电路的控制电路，用于响应于从较高控制器提供的电机驱动命令来控制电源电路 。 提供了一种异常确定器，用于根据规定的规则确定控制器中正在使用的异常，然后产生切换信号。 提供开关，其可响应于切换信号而操作，以便在相对于驱动马达的功能状态下改变控制器。

公开(公告)号：US20110074233A1

公开(公告)日：2011-03-31

申请号：US12736990

申请日：2009-05-26

申请人： Koichi Okada ,  Yusuke Makino ,  Ken Sugiura

发明人： Koichi Okada ,  Yusuke Makino ,  Ken Sugiura

IPC分类号： H02K9/19

CPC分类号： H02K9/19 ,  H02K1/32

摘要： An internal cooling structure for a motor, which is effective to remove the heat in the rotor to achieve high cooling effect is provided. The motor includes a stator having a stator coil and a stator core, and a rotor positioned on an inner side of the stator core. The rotor includes a tubular rotor spindle on a rotor drive shaft, and the rotor core is fitted to the rotor spindle. A cooling space is defined between the rotor drive shaft and the rotor spindle. An inner peripheral surface of the rotor spindle confronting the cooling space has tapered shape having large diameter at an end portion. An oil feed passage for a cooling oil is defined inside the rotor drive shaft, and a cooling oil discharge port of such oil feed passage is formed in the rotor drive shaft confronting the cooling space.

摘要翻译： 提供一种用于电动机的内部冷却结构，其有效地去除转子中的热量以实现高冷却效果。 电动机包括具有定子线圈和定子铁心的定子和位于定子铁芯内侧的转子。 转子包括转子驱动轴上的管状转子轴，转子芯安装在转子主轴上。 在转子驱动轴和转子主轴之间限定冷却空间。 面对冷却空间的转子主轴的内周面在端部具有大直径的锥形形状。 用于冷却油的供油通道限定在转子驱动轴内部，并且在与冷却空间相对的转子驱动轴中形成有这种供油通道的冷却油排出口。

公开(公告)号：US09211807B2

公开(公告)日：2015-12-15

申请号：US13489022

申请日：2012-06-05

申请人： Koichi Okada ,  Yusuke Makino

发明人： Koichi Okada ,  Yusuke Makino

IPC分类号： B60L15/20 ,  B60K7/00 ,  B60W10/08 ,  B60W30/18 ,  B60K1/02

CPC分类号： B60L15/20 ,  B60K1/02 ,  B60K7/00 ,  B60K7/0007 ,  B60K2007/0038 ,  B60L15/2036 ,  B60L2220/44 ,  B60L2240/24 ,  B60L2240/423 ,  B60T2240/07 ,  B60W10/08 ,  B60W30/18145 ,  B60W2510/083 ,  Y02T10/645 ,  Y02T10/646 ,  Y02T10/72 ,  Y02T10/7275

摘要： Even when the effective radii of wheels differ from each other because of a change in tire pneumatic pressure, the difference in driving force between left and right drive wheels are substantially zeroed to suppress a turning force to thereby increase the traveling stability. The use is made of a corrector for correcting a command value to be outputted to a drive circuit for an electric drive motor for each of the drive wheels. This corrector receives the steering angle, the respective numbers of revolutions of the drive wheels and an electric drive motor current and corrects with the use of the steering angle as measured with respect to a traveling direction so that command values relative to the drive wheels may have such a relation that the turning force induced in a vehicle as a result of the difference in effective radius between the drive wheels can be suppressed.

摘要翻译： 即使当轮胎的有效半径因轮胎气压的变化而彼此不同时，左右驱动轮之间的驱动力的差基本上为零，以抑制转动力，从而提高行驶稳定性。 使用用于校正要输出到用于每个驱动轮的电驱动电动机的驱动电路的指令值的校正器。 该校正器接收转向角度，驱动轮的相应转数和电驱动电动机电流，并且使用相对于行驶方向测量的转向角来校正，使得相对于驱动轮的指令值可以具有 可以抑制由于驱动轮之间的有效半径的差异而在车辆中引起的转动力的关系。