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公开(公告)号：US20240204624A1
公开(公告)日：2024-06-20
申请号：US18067026
申请日：2022-12-16
发明人： Arthur P. Lyons , Stephen J. Kosteva , Cameron R. Vakili , Nicholas A. Lemberg , Robert J. Vovos
摘要： A cabling system having a shielded cable for connecting an inverter and an electric machine is provided. The conductive shielding is connectable, either directly or indirectly, to the chassis of the inverter and the chassis of the electric machine such as indirectly, via a cable connector chassis. The cabling system further comprise high pass filter which comprises capacitance electrically connected to the conductive shielding configured to attenuated current less than a predetermined frequency from coupling to the conductive shielding. The attenuation is achieved via a frequency dependent current limiting impedance of the capacitance. The current less than the predetermined frequency is caused by torque producing current and/or flux modifying current. The cable connector chassis may comprise at least one high pass filter to connect serially with at least one cable inserted therein, respectively.
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公开(公告)号：US11953547B2
公开(公告)日：2024-04-09
申请号：US17560998
申请日：2021-12-23
IPC分类号： G01R31/3185 , G01R31/319
CPC分类号： G01R31/31853 , G01R31/31905 , G01R31/31915
摘要： An apparatus that allows for access to any and all registers of a central processing unit in a line replaceable unit (LRU) without a need to open the housing of the LRU is provided. The apparatus may receive write or read packets from an external device and relay the same to an LRU. The apparatus may receive state information from one or more registers of the LRU in response. The apparatus may transmit or transfer the state information to an external device. The apparatus may be used to update firmware in the LRU, for diagnostics or testing.
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公开(公告)号：US20190389406A1
公开(公告)日：2019-12-26
申请号：US16014080
申请日：2018-06-21
IPC分类号： B60R16/033 , B60L11/02
摘要： Systems and methods for reducing a likelihood that an engine exceeds its torque or power limit at a specific speed are provided. Also provided are systems and methods for reducing a likelihood that DC-DC converters and AC inverters overload a generator at a specific speed.
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公开(公告)号：US20240364094A1
公开(公告)日：2024-10-31
申请号：US18141053
申请日：2023-04-28
发明人： Robert J. Vovos , James A. Dupuy
摘要： Methods and systems for arc detection are described. A controller can receive a bus voltage of a direct current (DC) bus connected to an energy source. The controller can determine whether the received bus voltage is less than a bus voltage threshold. The controller can, in response to determining the received bus voltage being less than the bus voltage threshold, determine an occurrence of an arc event in an apparatus that includes the DC bus and the energy source.
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公开(公告)号：US20240312671A1
公开(公告)日：2024-09-19
申请号：US18121225
申请日：2023-03-14
发明人： Matthew S. Boecke , Joshua P. Stewart , Arthur P. Lyons , Robert J. Vovos , Jeffrey E. Coughlin , Brad J. Mulcahy
摘要： A polyphase cable includes a first conductor, a first shield including conductive material coaxially around the first conductor, and a first insulating material between and separating the first conductor and the first shield. The polyphase cable further includes a second conductor, a second shield including conductive material coaxially around the second conductor, and a second insulating material between and separating the second conductor and the second shield. In an example, the first shield is in physical contact, and in electrical contact, with the second shield. In an example, the polyphase cable is configured to conduct polyphase Alternating Current (AC) having a frequency of at least 100 Hertz (Hz) and/or at most 10,000 Hz. In an example, one or both of a first end and a second end of one or both of the first shield and the second shield are configured to be grounded.
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公开(公告)号：US11671050B2
公开(公告)日：2023-06-06
申请号：US17736483
申请日：2022-05-04
CPC分类号： H02P29/50 , H02J3/01 , H02M1/126 , H02P27/08 , H03H7/0138
摘要： Passive filters, line replaceable units and a modular power supply are provided. In one example the modular power supply has a DC bus link having a positive line and a negative line with at least one passive filter and an inductor having a first end and a second end, the first end coupleable to a phase output. A diode bridge having at least a first diode and a second diode, with an anode of the first diode coupleable to the second end of the inductor and a cathode of the first diode coupleable to the positive line, wherein a cathode of the second diode is coupleable to the second end of the inductor and an anode of the second diode is coupleable to the negative line, and wherein the first diode and the second diode are each configured to produce a combined reverse recovery charge that achieves a target DV/DT for an output voltage of the at least one passive filter.
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公开(公告)号：US20210341544A1
公开(公告)日：2021-11-04
申请号：US16861375
申请日：2020-04-29
发明人： Robert J. Vovos , Peter A. Carruthers , Andrew S. Clark , Arthur P. Lyons , Benjamin T. Webster
摘要： A fault detection system for a system having a single DC input and a plurality of A/C loads such as an electric or hybrid electric vehicle. A plurality of inverters convert DC to 3-phase A/C and supply A/C power to a corresponding individual A/C load. Each inverter includes a common mode current transformer and a controller. An individual corresponding common mode current transformer is coupled to the 3-phase A/C output of the inverter. An individual corresponding controller is coupled to the output of an individual corresponding common mode current transformer and is coupled to an individual corresponding A/C load. Each controller is configured to detect a fault at the individual corresponding A/C load and in the case of detection of a fault at an individual corresponding A/C load, the corresponding controller disables the A/C load.
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公开(公告)号：US09950639B2
公开(公告)日：2018-04-24
申请号：US14888260
申请日：2015-02-26
发明人： Robert J. Vovos , James A. Dupuy , Arthur P. Lyons
IPC分类号： B60L9/00 , B60L15/00 , G05D1/00 , G05D3/00 , G06F7/00 , G06F17/00 , B60L15/20 , B60L7/14 , B60L11/12
CPC分类号： B60L15/20 , B60L7/14 , B60L11/126 , B60L15/2009 , B60L2210/40 , B60L2240/12 , B60L2240/421 , B60L2240/423 , B60L2240/461 , B60L2250/12 , B60L2250/16 , B60L2260/44 , B60L2270/145 , Y02T10/6217 , Y02T10/645 , Y02T10/7077 , Y02T10/7241 , Y02T10/7275
摘要： In one aspect, a system for torsional damping of electric traction drives comprises dual Kalman filters to correct for oscillations based on measured traction motor speed and commanded traction motor torque. A first Kalman filter can perform a state space estimate of the shaft torque providing negative feedback to the final torque command in order to eliminate resonant components from the commanded torque and quickly damp external disturbances. A second Kalman filter provides a state space estimation of the load torque or, equivalently, load acceleration. This second Kalman filter can ignore commanded torque and can provide a damping feedback when the wheel speed deviates from the vehicle speed.
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公开(公告)号：US12113507B2
公开(公告)日：2024-10-08
申请号：US18067237
申请日：2022-12-16
CPC分类号： H03H7/427 , H03H7/0115 , H03H7/09
摘要： A common mode and a differential mode filter(s) between DC links are provided. Each link has a positive rail and a negative rail. The filter comprises a first inductor respectively connected to each of the positive rail and the negative rail, differential mode damping resistance connected in parallel to each of the first inductor, respectively, and a three-wire choke. The three-wire choke comprises a first wire connected in series with the differential mode damping resistance parallel to the positive rail, a second wire connected in series with the differential mode damping resistance parallel to the negative rail and a third wire connected to common mode damping resistance. The common mode damping resistance is galvanically isolated from differential mode transients flowing through the differential mode damping resistance. The differential mode filter has the differential mode damping resistance, and the common mode filter has the common mode damping resistance.
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公开(公告)号：US20240204744A1
公开(公告)日：2024-06-20
申请号：US18067237
申请日：2022-12-16
CPC分类号： H03H7/427 , H03H7/0115 , H03H7/09
摘要： A common mode and a differential mode filter(s) between DC links are provided. Each link has a positive rail and a negative rail. The filter comprises a first inductor respectively connected to each of the positive rail and the negative rail, differential mode damping resistance connected in parallel to each of the first inductor, respectively, and a three-wire choke. The three-wire choke comprises a first wire connected in series with the differential mode damping resistance parallel to the positive rail, a second wire connected in series with the differential mode damping resistance parallel to the negative rail and a third wire connected to common mode damping resistance. The common mode damping resistance is galvanically isolated from differential mode transients flowing through the differential mode damping resistance. The differential mode filter has the differential mode damping resistance, and the common mode filter has the common mode damping resistance.
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