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公开(公告)号：US11183911B2
公开(公告)日：2021-11-23
申请号：US16849276
申请日：2020-04-15
Applicant: EXEDY Corporation
Inventor： Hitoshi Katsura , Taichi Kitamura , Kenji Kitada
Abstract: A rotating electric machine includes a non-rotating member, a stator fixed to the non-rotating member, a field coil fixed to the non-rotating member, disposed on an inner diameter side of the stator, and having an iron core and a winding wound around the iron core, and a rotor rotatably disposed between the stator and the field coil. The rotor includes a first rotor portion and a second rotor portion. The rotating electric machine further comprises a positioning member disposed in each of the first gap, the second gap, and the third gap to position each of the first rotor portion and the second rotor portion in the circumferential direction and the extending direction.
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公开(公告)号：US10923970B2
公开(公告)日：2021-02-16
申请号：US16408892
申请日：2019-05-10
Applicant: EXEDY CORPORATION
Inventor： Hitoshi Katsura , Taichi Kitamura , Kimitaka Uemura
Abstract: A brushless winding field type rotary electric machine between a starting device and a stationary case, having a stator held in the case and internally equipped with an AC coil generating a rotating magnetic field by an AC current; a field core held in the case and internally equipped with a field coil excited by a DC current; a rotor disposed around the starting device outer periphery and rotatable with respect to the stator and the field coil; a first air gap formed between the stator and the rotor, delivering a magnetic flux between the two; a second air gap formed between the field core and the rotor, delivering a magnetic flux between the two. The second air gap has an inclined section inclined with respect to a rotation shaft axial direction so that the rotor radially outer portion is positioned on the radially outer side than the field core.
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公开(公告)号：US20190334401A1
公开(公告)日：2019-10-31
申请号：US16392222
申请日：2019-04-23
Applicant: EXEDY CORPORATION
Inventor： Hitoshi Katsura , Taichi Kitamura , Kimitaka Uemura
Abstract: A rotating electrical machine of a brushless wound field type disposed between a stationary case and rotating member that rotates inside the case includes a stator held by the case, including an AC coil that generates a rotating magnetic field with an alternating current, a field core held by the case, the field core including a field coil that generates a magnetic flux with a direct current, a rotor fixed in contact with an outer circumferential surface of the rotating member and held rotatably relative to the stator and field coil, a rotor side core portion that is a part of the rotating member. The magnetic flux of the field coil passes from the field core through the rotor via the second air gap, the stator and rotor via the first air gap, the rotor side core portion, and the field core via the third air gap.
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公开(公告)号：US12194805B2
公开(公告)日：2025-01-14
申请号：US18596050
申请日：2024-03-05
Applicant: EXEDY Corporation
Inventor： Taichi Kitamura
Abstract: It is intended to sufficiently apply a wheel pressure to a drive wheel. An upper unit is configured to be attached to a mobile object. A drive wheel is disposed to be movable in an up-and-down direction with respect to the upper unit. A drive source is configured to drive the drive wheel. A support arm is pivotably attached to the upper unit. The support arm extends slantingly downward from the upper unit. The support arm supports the drive wheel. An urging mechanism urges the support arm downward.
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公开(公告)号：US12134322B2
公开(公告)日：2024-11-05
申请号：US17877720
申请日：2022-07-29
Applicant: EXEDY Corporation
Inventor： Yusuke Ohashi , Taichi Kitamura , Hitoshi Katsura
IPC: B60L15/20
Abstract: A mobile object control device controls an electric motor assisting traveling of a mobile object. The mobile object control device includes a rolling resistance calculation section, a power loss calculation section, and an assist force calculation section. The rolling resistance calculation section calculates a rolling resistance based on a set weight set by a user. The power loss calculation section calculates a power loss caused until a power outputted from the electric motor is transmitted to a drive wheel. The assist force calculation section calculates an assist force of the electric motor based on an acceleration of the mobile object, the set weight, the rolling resistance calculated by the rolling resistance calculation section, the power loss calculated by the power loss calculation section, and an assist ratio.
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Patent Agency Ranking
公开(公告)号：US11569766B2
公开(公告)日：2023-01-31
申请号：US17336678
申请日：2021-06-02
Applicant: EXEDY Corporation
Inventor： Junichi Ito , Hitoshi Katsura , Taichi Kitamura , Chika Baba
Abstract: A drive unit attached to a mobile entity is disclosed. The drive unit includes a motor, a first detector, and a controller. The first detector detects vehicle speed information regarding a vehicle speed of the mobile entity. The controller performs PWM control for the motor. The controller controls a duty cycle of a PWM signal in accordance with the vehicle speed information detected by the first detector.
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公开(公告)号：US11323004B2
公开(公告)日：2022-05-03
申请号：US16849190
申请日：2020-04-15
Applicant: EXEDY Corporation
Inventor： Hitoshi Katsura , Taichi Kitamura , Kenji Kitada
Abstract: A rotating electric machine includes a non-rotating member, a stator fixed to the non-rotating member, a field coil fixed to the non-rotating member, disposed on an inner diameter side of the stator, and having an iron core and a winding wound around the iron core, and a rotor rotatably disposed between the stator and the iron core. A flow path through which a heat exchange medium is supplied and discharged is formed in the iron core along an axial direction thereof.
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公开(公告)号：US10985638B2
公开(公告)日：2021-04-20
申请号：US16480408
申请日：2018-01-26
Applicant: EXEDY Corporation
Inventor： Hitoshi Katsura , Kohsuke Murata , Taichi Kitamura
Abstract: A rotary electrical machine includes a stator, a field core, a rotor, and first and second air gaps. The stator includes an AC coil that generates a rotating magnetic field with an alternating current. The field core includes a field coil excited by a direct current. The rotor is disposed on an outer circumference of a starting apparatus and held rotatably about a rotational axis relative to the stator and the field coil. The first air gap is formed between the stator and the rotor, and allows a magnetic flux to flow therebetween. The second air gap is formed between the field core and the rotor, and allows a magnetic flux to flow therebetween. The second air gap defines an interval extending along a direction that intersects an axial direction of the rotational axis on one end surface of the rotor in the axial direction of the rotational axis.
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公开(公告)号：US10886799B2
公开(公告)日：2021-01-05
申请号：US16385077
申请日：2019-04-16
Applicant: EXEDY CORPORATION
Inventor： Hitoshi Katsura , Taichi Kitamura , Kimitaka Uemura
Abstract: A rotary electric machine includes a stator, a rotor, and a field coil; the rotor includes a first magnetic pole having a first annular portion and a plurality of claw portions and a second magnetic pole having a second annular portion and a plurality of projection portions; in the rotor, the claw portions and the projection portions are circumferentially alternately positioned, and the first magnetic pole and the second magnetic pole are maintained in a non-contact state by providing a radial gap, a circumferential gap, and an axial gap between the first magnetic pole and the second magnetic pole; and the gap arrangement member has an axial positioning portion that is axially locked with respect to at least one of the first magnetic pole and the second magnetic pole, and axially positions the first magnetic pole and the second magnetic pole.
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公开(公告)号：US10724616B2
公开(公告)日：2020-07-28
申请号：US15769232
申请日：2016-10-13
Applicant: EXEDY CORPORATION
Inventor： Hitoshi Katsura , Kohsuke Murata , Taichi Kitamura
IPC: F16H37/02 , B60K6/365 , F16H9/12 , B60W20/10 , B60K6/547 , B60K6/543 , B60K6/48 , F16H3/66 , F16H3/72 , B60K1/02
Abstract: A power transmission apparatus for vehicle, incorporated in a vehicle equipped with a transmission, includes a forward-reverse switching mechanism with start function produced by adding a function of a vehicle start clutch to the forward-reverse switching mechanism. Additionally, a power transmission system for vehicle includes an internal combustion engine that is a power source for vehicle driving, the transmission, a torsional vibration damper that transmits torque of the internal combustion engine to the transmission, and the forward-reverse switching mechanism with start function of the power transmission apparatus for vehicle. The forward-reverse switching mechanism with start function is disposed between the transmission, and the internal combustion engine and the torsional vibration damper.
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