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1. 发明授权

US10655583B2 Optimum current drive for a actuator control 审中-公开
公开(公告)号：US10655583B2
公开(公告)日：2020-05-19
申请号：US15127017
申请日：2015-03-19
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： Avoki M. Omekanda , Chandra S. Namuduri , Suresh Gopalakrishnan , Thomas W. Nehl
IPC分类号： F02M51/06 , F16K31/06 , F02D41/20 , H03K17/64 , F02M57/00 , F02D41/40 , H01F7/16 , H01F7/18
摘要： A method for operating an electromagnetic actuator includes an actuation event utilizing a current waveform for the actuator characterized by an initial peak pull-in current in a first direction of current flow when the actuator is commanded to an actuated position; and a reversed peak current in a second opposite direction of current flow applied after the actuator is commanded to a rest position. The reversed peak current has a magnitude that is greater than the magnitude of the initial peak pull-in current.

2. 发明申请

US20190326842A1 STARTER INCLUDING A SWITCHED RELUCTANCE ELECTRIC MOTOR 审中-公开
公开(公告)号：US20190326842A1
公开(公告)日：2019-10-24
申请号：US15961119
申请日：2018-04-24
申请人： GM Global Technology Operations LLC
发明人： Avoki M. Omekanda , Lei Hao , Chandra S. Namuduri , Suresh Gopalakrishnan , Thomas W. Nehl
IPC分类号： H02P25/092 , F02N11/08
摘要： A starter includes a three-phase switched reluctance electric motor including a rotor and a stator, a pinion gear, a power inverter that is connected to the stator, and a rotational position sensor. The rotor includes a quantity of rotor poles that is between 6 and 16, and the stator includes a quantity of stator poles that is between 8 and 24. An outer diameter of the electric motor is less than 85 mm. An active length of the motor is less than 50 mm. An airgap distance between the rotor and the stator is between 0.1 mm and 0.5 mm. A ratio between a rotor pole arc and a stator pole arc is at least 1.0:1. A ratio between a stator diameter and a rotor diameter is at least 2.0:1, and a ratio between a stator pole height and a rotor pole height is at least 2.5:1.

3. 发明申请

US20140246943A1 OPTIMUM ROTOR SKEW ANGLE FOR AN ELECTRIC MACHINE 审中-公开
标题翻译：电动机的最佳转子轴角
公开(公告)号：US20140246943A1
公开(公告)日：2014-09-04
申请号：US13782320
申请日：2013-03-01
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： Avoki M. Omekanda , John C. Morgante
IPC分类号： H02K17/16 , B60L1/00
CPC分类号： B60L1/00 , H02K17/205
摘要： An electric machine includes a stator core defining a number of stator slots (S) extending along a longitudinal axis and angularly spaced about the longitudinal axis. The machine includes a rotor assembly rotatable relative to the stator core and defining first and second ends. The rotor assembly includes a plurality of laminations stacked between the first and second ends. Each respective one of the plurality of laminations defines a number of rotor slots (R) positioned along an outer periphery. A stator slot pitch is defined as 360 divided by the number of stator slots (S). A rotor slot pitch is defined as 360 divided by the number of rotor slots (R) in each respective one of the plurality of laminations. The laminations are skewed relative to each other. An optimal rotor skew angle is determined by the greater of the stator slot pitch and rotor slot pitch.
摘要翻译：电机包括限定沿着纵向轴线延伸并且围绕纵向轴线成角度间隔的多个定子槽（S）的定子芯。该机器包括可相对于定子铁心旋转并限定第一和第二端的转子组件。转子组件包括堆叠在第一和第二端之间的多个叠片。多个叠片中的每个相应的一个限定了沿着外周定位的多个转子槽（R）。定子槽间距定义为360除以定子槽数（S）。转子槽间距被定义为360除以多个叠片中的每个相应的一个中的转子槽（R）的数量。叠片相对于彼此倾斜。最佳转子斜角由定子槽间距和转子槽间距的较大者确定。

4. 发明公开

US20230369879A1 VEHICLE INTEGRATED DC-DC ENERGY TRANSFER 审中-公开
公开(公告)号：US20230369879A1
公开(公告)日：2023-11-16
申请号：US17743737
申请日：2022-05-13
申请人： GM Global Technology Operations LLC
发明人： Rashmi Prasad , Chandra S. Namuduri , Avoki M. Omekanda
IPC分类号： H02J7/34 , H02M3/335
CPC分类号： H02J7/342 , H02M3/335 , B60L50/60
摘要： Electrical energy is transferred between an on-vehicle DC power source and an off-vehicle DC power source by controlling conduction of the phase legs of a power inverter to operatively configure the power inverter and the stator phase windings of a traction motor as a switched-mode power converter including the at least one phase winding and at least one switch of one of the phase legs.

5. 发明授权

US10476348B2 Electric motor having asymmetric configuration for generating unbalanced force 有权
公开(公告)号：US10476348B2
公开(公告)日：2019-11-12
申请号：US15845353
申请日：2017-12-18
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： Nilesh D. Mankame , Alireza Fatemi , Avoki M. Omekanda , Thomas W. Nehl , Lei Hao
IPC分类号： H02K1/17 , H02K7/06 , H02K1/27 , H02K1/26
摘要： An electric motor includes a rotor having a stack of laminations positioned axially relative to one another. The stack of laminations includes a first rotor lamination that is divided into a first portion and a second portion. The first rotor lamination is configured to have an asymmetric mass distribution such that the first portion has a first mass and the second portion has a second mass, with the first mass being different from the second mass. The electric motor is configured to selectively generate an unbalanced force during operation (i.e., when the rotor is spinning). The electric motor may include a stator configured to have an asymmetric magnetic field distribution. The electric motor may be employed in a haptic assembly and eliminates the need for a separate eccentric mass to generate a haptic signal.

6. 发明申请

US20180050686A1 Hybrid Vehicle Propulsion Systems And Methods 审中-公开
公开(公告)号：US20180050686A1
公开(公告)日：2018-02-22
申请号：US15239010
申请日：2016-08-17
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： Venkata Prasad Atluri , Norman K. Bucknor , Robert S. Conell , Suresh Gopalakrishnan , Lei Hao , Chunhao J. Lee , Derek F. Lahr , Dongxu Li , Shifang Li , Chandra S. Namuduri , Thomas W. Nehl , Avoki M. Omekanda , Bob R. Powell, JR. , Rashmi Prasad , Farzad Samie , Neeraj S. Shidore , Aaron M. Sullivan
IPC分类号： B60W20/40 , B60W10/06 , B60W10/08 , B60W10/30 , B60W20/13 , B60W20/50 , B60K6/26 , B60K6/48 , F02N11/04
CPC分类号： B60W20/40 , B60K6/26 , B60K6/387 , B60K6/48 , B60K2006/268 , B60K2006/4808 , B60K2006/4816 , B60K2006/4825 , B60K2006/4833 , B60W10/06 , B60W10/08 , B60W10/30 , B60W20/13 , B60W20/50 , B60W2510/244 , B60W2720/10 , B60Y2200/92 , B60Y2300/18066 , B60Y2300/18125 , B60Y2300/182 , F02N11/04 , Y02T10/6221 , Y02T10/6252 , Y02T10/6256 , Y02T10/626 , Y02T10/6278 , Y02T10/6286 , Y10S903/906 , Y10S903/93
摘要： A hybrid vehicle propulsion includes an engine and a first electric machine, where each is configured to selectively provide torque to propel the vehicle. The propulsion system also includes a second electric machine coupled to the engine to provide torque to start the engine from an inactive state. A high-voltage power source is configured to power both of the first electric machine and the second electric machine over a high-voltage bus. The propulsion system further includes a controller programmed to deactivate the engine and propel the vehicle using the first electric machine in response to the vehicle being driven at a steady-state speed for a predetermined duration of time. The controller is also programmed to restart the engine using the second electric machine powered by the high-voltage power source.

7. 发明授权

US09777660B2 Parameter estimation in an actuator 有权
公开(公告)号：US09777660B2
公开(公告)日：2017-10-03
申请号：US14658379
申请日：2015-03-16
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： Chandra S. Namuduri , Suresh Gopalakrishnan , Thomas Wolfgang Nehl , Avoki M. Omekanda
IPC分类号： F02D41/20 , F02M51/00 , F02M51/06 , G01K13/00 , G01R31/06 , H01F7/18 , H01F7/16
CPC分类号： F02D41/20 , F02D2041/2058 , F02D2041/2065 , F02M51/005 , F02M51/061 , G01K13/00 , G01R31/06 , H01F7/1638 , H01F7/1844
摘要： A method for parameter estimation in an electromagnetic actuator having an electrical coil and an armature includes applying a voltage pulse to the electrical coil of the actuator prior to an actuator event and of sufficient duration to ensure that a resulting electrical current achieves steady state. At least one parameter of the actuator is estimated based upon the voltage pulse and the steady state current.

8. 发明申请

US20160308427A1 OPTIMUM ROTOR SKEW ANGLE FOR AN ELECTRIC MACHINE 审中-公开
标题翻译：电动机的最佳转子轴角
公开(公告)号：US20160308427A1
公开(公告)日：2016-10-20
申请号：US15191652
申请日：2016-06-24
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： Avoki M. Omekanda
IPC分类号： H02K17/16
CPC分类号： H02K17/205 , B60L50/51 , B60L2220/12 , B60L2220/50 , B60L2240/423 , B60L2270/145 , H02K2201/06 , Y02T10/641 , Y02T10/642 , Y02T10/7005
摘要： An electric machine assembly includes a stator core, a rotor assembly and a controller. The stator core defines a number of stator slots extending along a longitudinal axis and angularly spaced about the longitudinal axis. The rotor assembly is rotatable relative to the stator core and includes a plurality of laminations stacked between first and second ends of the rotor assembly. The laminations are skewed relative to each other. Each respective one of the plurality of laminations defines a number of rotor slots positioned along an outer periphery. The controller includes a processor and tangible, non-transitory memory on which is recorded instructions for executing a method of obtaining an optimal rotor skew angle. The optimum rotor skew angle is selected from a set (SK) of skew angles between first and second skew angles (SK1≦SK≦SK2).
摘要翻译：电机组件包括定子芯，转子组件和控制器。定子芯限定了沿着纵向轴线延伸并且围绕纵向轴线成角度地间隔开的多个定子槽。转子组件可相对于定子铁心旋转并且包括堆叠在转子组件的第一和第二端之间的多个叠片。叠片相对于彼此倾斜。多个叠片中的每个相应的一个限定了沿着外周定位的多个转子槽。控制器包括处理器和有形的非暂时性存储器，其上记录有用于执行获得最佳转子斜角的方法的指令。从第一和第二偏斜角（SK1≤SK≤SK2）之间的倾斜角度的集合（SK）中选择最佳的转子偏斜角。

9. 发明公开

US20230313771A1 PRECISION VALVE FOR VEHICLE 审中-公开
公开(公告)号：US20230313771A1
公开(公告)日：2023-10-05
申请号：US17708125
申请日：2022-03-30
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： Chandra S. NAMUDURI , Thomas W. Nehl , Avoki M. Omekanda , Suresh Gopalakrishnan
IPC分类号： F02M61/06 , F02M51/06 , F02M57/00 , F02M61/16 , F02M61/18
CPC分类号： F02M61/06 , F02M51/0664 , F02M57/005 , F02M61/166 , F02M61/188 , F02M61/168 , F02M2200/24 , F02M2200/8084 , F02M2200/9053
摘要： A valve system of a vehicle includes: a housing that is electrically conductive and made of a metal and that includes: an inlet configured to receive a fluid; an outlet configured to output the fluid; and a fluid channel fluidly connecting the inlet and the outlet; a pintle disposed within the housing and that is electrically conductive and made of a metal; a ball that is mechanically fastened to the pintle, that is configured to close the outlet, and that is electrically conductive and made of a metal; an armature that is mechanically fastened to the pintle, that is disposed within the housing, and that is electrically conductive and made of a metal; a solenoid coil that is disposed within the housing and that surrounds the pintle; and an electrically insulative material configured to insulate the pintle from the housing.

10. 发明授权

US10190526B2 Alternating current drive for actuators 有权
公开(公告)号：US10190526B2
公开(公告)日：2019-01-29
申请号：US15127014
申请日：2015-03-19
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： Thomas W. Nehl , Suresh Gopalakrishnan , Avoki M. Omekanda , Chandra S. Namuduri
IPC分类号： F02D41/40 , F02D41/20 , H03K17/64 , F02M51/06 , F02M57/00 , F16K31/06 , H02P25/06 , H01F7/16 , H01F7/18
摘要： A method for providing consistent actuator events for each of a plurality of consecutive actuator events of an electromagnetic actuator, includes applying a first bi-directional current waveform for a first actuator event and applying a second bi-directional current waveform for a second actuator event immediately subsequent to the first actuator event. The first bi-directional current waveform includes applying current in a first direction when the actuator is commanded to an actuated position and applying current in a reversed second direction when the actuator is commanded to a rest position. The second bi-directional current waveform includes applying current in the reversed second direction when the actuator is commanded to an actuated position and applying current in the first direction when the actuator is commanded to a rest position.

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