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    Electric motor
    1.
    发明专利
    Electric motor 审中-公开
    电动马达

    公开(公告)号：JP2003333784A

    公开(公告)日：2003-11-21

    申请号：JP2002135499

    申请日：2002-05-10

    Applicant: Toyota Motor Corp ,  トヨタ自動車株式会社

    Inventor： KAWABATA YASUMI ,  NAGAMATSU SHIGETAKA ,  MIURA TETSUYA ,  FUKUMARU KENICHIRO

    IPC: H02K1/16 ,  H02K3/04 ,  H02K3/34

    CPC classification number: Y02T10/641

    Abstract: PROBLEM TO BE SOLVED: To provide an electric motor improving its heat radiation and assembly workability of a coil.
    SOLUTION: The electric motor provided with a stator and/or a rotor comprising an iron core 10 constituted by radially arranging a plurality of slots 11 consisting of a groove in almost a square section and a coil constituted by an element wire 31 in almost a square section stored in these slots, is characterized by a clearance L=(S-M) in a circumferential direction, determined by a distance S between inner walls in a circumferential direction in the slot and by a wire width M in a circumferential direction of the element wire, satisfying a relation 0.12≤L/M≤0.2. The clearance in the slot provided in the stator core or the like can be easily optimized, heat radiation and assembly workability of the coil can be improved to an extent with no example in the past.
    COPYRIGHT: (C)2004,JPO

    Abstract translation: 要解决的问题：提供一种提高线圈的热辐射和组装操作性的电动马达。 解决方案：设置有定子和/或转子的电动机包括铁芯10，该铁芯10由径向布置由几乎正方形的槽组成的多个槽11和由元件线31构成的线圈 存储在这些槽中的几乎一个方形部分的特征在于周向上的间隙L =（SM），其由槽中的圆周方向的内壁之间的距离S和圆周方向的线宽度M决定 元素线，满足0.12≤L/M≤0.2的关系。 可以容易地优化设置在定子铁芯等中的槽中的间隙，可以在过去没有例子的程度上提高线圈的热辐射和组装可操作性。 版权所有（C）2004，JPO

    POWER OUTPUT DEVICE AND CONTROL METHOD THEREOF
    2.
    发明专利
    POWER OUTPUT DEVICE AND CONTROL METHOD THEREOF 审中-公开

    公开(公告)号：JP2003262142A

    公开(公告)日：2003-09-19

    申请号：JP2002371804

    申请日：2002-12-24

    Applicant: TOYOTA MOTOR CORP

    Inventor： KAWABATA YASUMI ,  MATSUHASHI SHIGERU ,  TAKAGI NOBUYOSHI ,  KANAMORI AKIHIKO ,  YAMADA EIJI

    IPC: B60W20/00 ,  B60K6/442 ,  B60K6/445 ,  B60K6/448 ,  B60K17/04 ,  B60L50/16 ,  B60W10/06 ,  B60W10/10 ,  F02D29/02 ,  F16H61/02 ,  F16H63/50 ,  B60K6/04 ,  B60L11/14

    Abstract: PROBLEM TO BE SOLVED: To reduce maximum load capacity of an assist motor, and also reduce maximum current value of an inverter circuit for driving the assist motor. SOLUTION: A control unit 90 sets a WOT line L2 as a boundary of an overdrive area and an underdrive area, when a coupling condition of an assist motor 40 is an overdrive linking condition (S104). The control unit 90 determines a desired coupling point of a drive shaft, namely an outer rotor shaft 35 from a required output (S106). When the desired operating point is in the underdrive area, the unit selects the WOT line L2 for maximizing a torque of an engine 50 as an operating line of the engine 50 (S116), and marks a switch flag from the overdrive coupling to the underdrive coupling (S118). Thereby, the overdrive coupling is switched to the underdrive coupling, and when the operating point of the drive shaft, namely the outer rotor shaft 35 is in the underdrive area, the WOT line L2 is used as the operating line of the engine 50. COPYRIGHT: (C)2003,JPO

    ELECTRICAL ANGLE MEASURING INSTRUMENT, CONTROLLER FOR MOTOR-DRIVEN ROTARY MACHINE, METHOD FOR MEASURING ELECTRICAL ANGLE, AND METHOD FOR CONTROLLING MOTOR- DRIVEN ROTARY MACHINE
    4.
    发明专利
    ELECTRICAL ANGLE MEASURING INSTRUMENT, CONTROLLER FOR MOTOR-DRIVEN ROTARY MACHINE, METHOD FOR MEASURING ELECTRICAL ANGLE, AND METHOD FOR CONTROLLING MOTOR- DRIVEN ROTARY MACHINE 失效

    公开(公告)号：JP2001069781A

    公开(公告)日：2001-03-16

    申请号：JP24610099

    申请日：1999-08-31

    Applicant: TOYOTA MOTOR CORP

    Inventor： KOIDE SATOSHI ,  KAWABATA YASUMI ,  YAMADA EIJI

    IPC: H02P6/18 ,  H02P6/06 ,  H02P6/08 ,  H02P6/16 ,  H02P6/182 ,  H02P6/28

    Abstract: PROBLEM TO BE SOLVED: To detect an electrical angle with accuracy and ideally control the angle by impressing a pulse voltage having an arbitrary time interval upon multiphase coils and detecting the variation of the currents flowing to the coils. SOLUTION: A pulse voltage having an arbitrary time interval is impressed upon the multiphase coils U, V, and W of a motor-driven rotary machine 60 and the variation of the currents flowing to the coils U, V, and W caused by the impressed voltage is detected. Thus the detected electrical angle between the rotator and stator of the machine 60 is measured. Namely, the driving condition of the machine 60 is detected in advance and the relative timing after the impression of the pulse voltage is started is decided to a prescribed timing in the pulse voltage impressing duration as the detecting timing of the variation of the currents flowing to the coils U, V, and W in accordance with the driving condition of the machine 60. At the decided detecting timing, current detectors 12 and 14 detect the variation of the currents flowing to the coils U, V, and W and an electrical angle detecting section 40 decides the electrical angle based on the detected variation. In addition, a control section 20 controls the machine 60 based on the electrical angle.

    STATOR CORE FOR ROTARY ELECTRIC MACHINE AND MANUFACTURE THEREOF
    5.
    发明专利
    STATOR CORE FOR ROTARY ELECTRIC MACHINE AND MANUFACTURE THEREOF 失效

    公开(公告)号：JP2000341913A

    公开(公告)日：2000-12-08

    申请号：JP14931899

    申请日：1999-05-28

    Applicant: TOYOTA MOTOR CORP

    Inventor： HIRAKO MASARU ,  YAMADA EIJI ,  KAWABATA YASUMI ,  MIURA TETSUYA

    IPC: H02K1/18 ,  H02K15/02

    Abstract: PROBLEM TO BE SOLVED: To prevent the occurrence of eddy currents on the punched end faces of a stator core formed by laminating blank stator materials upon another, without coating the end faces with insulating films. SOLUTION: A stator core for rotary electric machine is formed, by alternately laminating two kinds of blank stator materials 22 and 32 having different external forms upon another. Since the materials 22 and 32 have different external forms, all punched end faces of the formed stator core 20, such as the outer peripheral surfaces, inner peripheral surfaces, and end faces of tooth sections do not become smooth. Consequently, the occurrence of nonconformities such as efficiency deterioration due to heat generated from the core 20, etc., resulting form eddy currents which may occur, when the punched end faces are smooth can be prevent.

    DEVICE FOR MANUFACTURING FLAT SQUARE WIRE COIL AND METHOD THEREFOR
    8.
    发明专利
    DEVICE FOR MANUFACTURING FLAT SQUARE WIRE COIL AND METHOD THEREFOR 失效

    公开(公告)号：JP2000082628A

    公开(公告)日：2000-03-21

    申请号：JP24865298

    申请日：1998-09-02

    Applicant: TOYOTA MOTOR CORP

    Inventor： NAKAMURA MASAYUKI ,  KAWABATA YASUMI ,  NISHIOKA MASAHIRO ,  ENDO KATSUHISA ,  ISHIMARU YASUHIKO ,  MIURA TETSUYA

    IPC: B21B1/18 ,  B21B1/16 ,  B21B1/38 ,  B21B13/12 ,  H01B7/02 ,  H01B13/00 ,  H01F41/04 ,  H01F41/06

    Abstract: PROBLEM TO BE SOLVED: To provide a device and method for making it unnecessary to correct twisting of a flat square wire coil, and for easily manufacturing a flat square wire coil at low costs. SOLUTION: A round wire 3 having a circular cross-section is wound around a coil reel 1. When a coil former 25 is rotated by a coil former motor 29, the round wire 3 is pulled and led from the coil reel 1. The round wire 3 is crushed by a flat square molding roller 7 so that a flat square wire 9 having a rectangular cross-section can be formed. The flat square wire 9 is directly wound around a coil former 25 as it is, so that a flat square coil 39 can be formed. The formation of the flat square wire and the winding around the coil former 25 is executed in a series of continuous processes so that it is not necessary to execute any process for removing twisting of the flat square wire. Thus, the flat square wire coil 39 can be formed of the inexpensive round wire 3 by a simple and inexpensive device. Moreover, it is desired that the dimension and shape of the flat square wire can be varied by controlling the clearance width of the molding roller and any tension acting on the flat square wire after passing the roller.

    TRANSMISSION
    9.
    发明专利
    TRANSMISSION 失效

    公开(公告)号：JPH11270582A

    公开(公告)日：1999-10-05

    申请号：JP9283698

    申请日：1998-03-20

    Applicant: TOYOTA MOTOR CORP

    Inventor： KOIDE SATOSHI ,  KAWABATA YASUMI ,  YAMADA EIJI

    IPC: F16D23/06

    Abstract: PROBLEM TO BE SOLVED: To provide a transmission capable of reducing the length of a shaft. SOLUTION: A transmission to selectively transmit the torque between a plurality of shafts is provided with a first synchronizing mechanism 36 having a first clutch hub sleeve 51, a first synchronizing cone 53, the first clutch hub sleeve 51, and a first synchronizer ring 54, and a second synchronizing mechanism 37 having a second clutch hub sleeve 55, a second synchronizing cone 58 and a second synchronizer ring 59 arranged on the outer side in the radial direction of the first synchronizing mechanism 36.

    ELECTRICAL ANGLE DETECTOR AND DESIGNING THEREOF
    10.
    发明专利
    ELECTRICAL ANGLE DETECTOR AND DESIGNING THEREOF 失效

    公开(公告)号：JPH1169884A

    公开(公告)日：1999-03-09

    申请号：JP24198097

    申请日：1997-08-21

    Applicant: TOYOTA MOTOR CORP

    Inventor： YAMADA EIJI ,  KAWABATA YASUMI

    IPC: H02P27/06 ,  H02P6/06 ,  H02P6/08 ,  H02P6/18 ,  H02P6/182 ,  H02P6/185 ,  H02P7/63

    Abstract: PROBLEM TO BE SOLVED: To attain detection of sensor-less electrical angle, by calculating the behavior of ideal current in switching with no dead time, between the mutual behavior of current where the behavior of current flowing through a prescribed phase of a coil winding according to the applied voltage of the coil winding of a motor is detected at a plurality of times of timing, and the behavior of ideal current, and computing an electrical angle. SOLUTION: A voltage applying part 130 for applying voltage between respective coils in order to obtain respective phases of current of a motor 40 inputted separately is provided at an output part in a controlling ECU 100 equipped with a microprocessor CPU 120 for arithmetic operation. The control outputs Gu to Gw and SD from the CPU 120 are outputted in the voltage applying part 130, and the voltage applied to the coil of the motor can be controlled from the outside. The detection of current may be conducted by detecting its behavior three times or more at the completion of forward voltage application and reverse voltage application. It is thus possible to eliminate the dispersion of switching elements and the effect of temperature or secular change thereof, that is, the effect of dead time.

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