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公开(公告)号：US20240100936A1
公开(公告)日：2024-03-28
申请号：US18471067
申请日：2023-09-20
申请人： DANA TM4 INC.
发明人： Carl TRUDEL , Steven VANHEE , Luke MILLER
CPC分类号： B60K11/02 , H02K9/19 , B60K2001/001
摘要： Methods and systems are provided for an electric axle in a vehicle. An electric axle includes an electric motor having a stator and a rotor, a coolant manifold mounted to a first end plate of the rotor, the first end plate opposite a second end plate distal to the coolant manifold, wherein the coolant manifold is configured to flow coolant to rotor coolant lines extending axially through the rotor, and a spray ring comprising coolant lines coupled to the coolant manifold, wherein coolant flowing from the coolant manifold to the spray ring flows in a direction angled to an axial direction, wherein the spray ring is positioned circumferentially about axial stator end windings and configured to spray coolant onto an outer diameter of the end windings, wherein the first end plate and the second end plate are configured to spray coolant onto an inner diameter of the end windings.
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公开(公告)号：US20240030767A1
公开(公告)日：2024-01-25
申请号：US17814437
申请日：2022-07-22
申请人： DANA TM4 INC.
CPC分类号： H02K3/28 , H02K1/165 , H02P25/184 , H02K2203/09
摘要： Methods and systems are provided for a winding reconfiguration assembly for an electric machine. The winding reconfiguration assembly includes a multi-position contactor device designed to switch stator windings in the electric machine between a first electric configuration in a first position and a second electric configuration in a second position. The winding reconfiguration assembly further includes an electromagnetic actuator configured switch the multi-position contactor device between the first position and the second position in response to a change in the polarity of a coil in the electromagnetic actuator.
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3.发明授权公开(公告)号：US11757393B2
公开(公告)日：2023-09-12
申请号：US17451459
申请日：2021-10-19
申请人： DANA TM4 INC.
发明人： Amir Ranjbar
IPC分类号： H03K17/082 , H02P27/06 , H02M1/08
CPC分类号： H02P27/06 , H02M1/08 , H02P2201/05
摘要： A drive circuit for an electric machine is disclosed. In one example, the drive circuit utilizes a bootstrap capacitor and a bootstrap diode, followed by a regulator, as a basis for driving a gate of a power stage of an inverter. The regulated voltages from the bootstrap capacitor and bootstrap diode eliminate the need for using a transformer for driving the gate of the power stage of the inverter.
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公开(公告)号：US11722028B2
公开(公告)日：2023-08-08
申请号：US17217960
申请日：2021-03-30
申请人： DANA TM4 INC.
发明人： Ruisheng Shi
摘要： Systems for a voltage balanced multi-set hairpin windings for electric motors are provided. The systems comprise a stator assembly of an electric motor system, a plurality of radial slots positioned around an inner cylindrical surface, and a winding scheme for the stator assembly including alternating positioning of a hairpin wire having a seven slot span and another hairpin wire having a five slot span in four sub-circuits.
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5.发明申请公开(公告)号：US20230118348A1
公开(公告)日：2023-04-20
申请号：US17451459
申请日：2021-10-19
申请人： DANA TM4 INC.
发明人： Amir RANJBAR
摘要： A drive circuit for an electric machine is disclosed. In one example, the drive circuit utilizes a bootstrap capacitor and a bootstrap diode, followed by a regulator, as a basis for driving a gate of a power stage of an inverter. The regulated voltages from the bootstrap capacitor and bootstrap diode eliminate the need for using a transformer for driving the gate of the power stage of the inverter.
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公开(公告)号：US20220352782A1
公开(公告)日：2022-11-03
申请号：US17661473
申请日：2022-04-29
申请人： DANA TM4 INC.
发明人： Carl TRUDEL , Steven VANHEE , Luke MILLER
摘要： Methods and systems are provided for an electric axle in a vehicle. The electric axle comprises an electric motor having a stator and a rotor, a coolant manifold mounted to an end plate of the rotor, wherein the coolant manifold is configured to flow coolant to rotor coolant lines extending axially through the rotor, and a spray ring comprising coolant lines coupled to the coolant manifold, wherein coolant flowing from the coolant manifold to the spray ring flows in a direction angled to an axial direction, wherein the spray ring is positioned circumferentially about axial stator end windings.
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公开(公告)号：US20220348063A1
公开(公告)日：2022-11-03
申请号：US17661476
申请日：2022-04-29
申请人： DANA TM4 INC.
发明人： Carl TRUDEL , Steven VANHEE , Luke MILLER
摘要： Methods and systems are provided for an electric axle in a vehicle. An electric axle comprises an electric motor having a stator and a rotor, a coolant manifold mounted to an end plate of the rotor, wherein the coolant manifold is configured to flow coolant to rotor coolant lines extending axially through the rotor, and a first spray ring arranged adjacent to the coolant manifold and a second spray ring arranged distally to the coolant manifold, wherein the first spray ring receives coolant from the coolant manifold via an interior passage and the second spray ring receives coolant from the coolant manifold via an outer passage.
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公开(公告)号：US20220320934A1
公开(公告)日：2022-10-06
申请号：US17217960
申请日：2021-03-30
申请人： DANA TM4 INC.
发明人： Ruisheng SHI
IPC分类号： H02K3/28
摘要： Systems for a voltage balanced multi-set hairpin windings for electric motors are provided. The systems comprise a stator assembly of an electric motor system, a plurality of radial slots positioned around an inner cylindrical surface, and a winding scheme for the stator assembly including alternating positioning of a hairpin wire having a seven slot span and another hairpin wire having a five slot span in four sub-circuits.
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公开(公告)号：US11283334B2
公开(公告)日：2022-03-22
申请号：US17137167
申请日：2020-12-29
申请人： DANA TM4 INC.
发明人： Gyula Bihari
摘要： A method for forming the heads of coils made of rectangular wire so that it fits within the slots of the stator of an electric machine. The method includes receiving a coil having unformed first and second heads separated by first and second legs and applying controlled deformation to yield properly shaped heads. Actuators are provided for causing sequential actuated movements of one of the first and second legs to force the head-forming elements into contact with different portions of the first and second heads while allowing selective free movements of the other leg in response to the actuated movements.
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公开(公告)号：US20210119518A1
公开(公告)日：2021-04-22
申请号：US17137167
申请日：2020-12-29
申请人： DANA TM4 INC.
发明人： Gyula BIHARI
IPC分类号： H02K15/04
摘要： A method for forming the heads of coils made of rectangular wire so that it fits within the slots of the stator of an electric machine. The method includes receiving a coil having unformed first and second heads separated by first and second legs and applying controlled deformation to yield properly shaped heads. Actuators are provided for causing sequential actuated movements of one of the first and second legs to force the head-forming elements into contact with different portions of the first and second heads while allowing selective free movements of the other leg in response to the actuated movements.
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