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公开(公告)号：US10800279B2
公开(公告)日：2020-10-13
申请号：US16130071
申请日：2018-09-13
发明人： Krishna Prasad Bhat , Michael W. Degner , Allan Roy Gale , Ke Zou , Xi Lu
摘要： An exemplary charging system includes, among other things, a first portable charger that electrically couples to an electrified vehicle to charge a traction battery of the electrified vehicle while a second portable charger is providing electrical energy to charge the traction battery. An exemplary charging method includes, among other things, electrically coupling both a first and a second portable charger to an electrified vehicle to charge a traction battery of the electrified vehicle using electrical energy from both the first and the second portable chargers.
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公开(公告)号：US10114041B2
公开(公告)日：2018-10-30
申请号：US15471485
申请日：2017-03-28
发明人： Xi Lu , Krishna Prasad Bhat , Chingchi Chen , Mark Allan Lippman , Zhuxian Xu , Guangyin Lei
摘要： A voltage probe holster includes a support member disposed on a base. The support member defines a plurality of apertures sized to receive a plurality of single-ended probes having coaxial leads. Each of the apertures have a conductive periphery configured to conduct electricity from one of the coaxial leads such that a common ground loop through the support member and the base is formed and that differences in ground potential are reduced.
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公开(公告)号：US20180284158A1
公开(公告)日：2018-10-04
申请号：US15471214
申请日：2017-03-28
发明人： Chingchi Chen , Xi Lu , Guangyin Lei , Zhuxian Xu
IPC分类号： G01R15/14
CPC分类号： G01R1/203
摘要： A shunt includes a power terminal having a planar first potential region (FPR) connected to a second potential region (SPR) through a resistive element, the SPR being offset from and parallel to the FPR. The shunt includes a sensor terminal having a first potential lead (FPL) connected to the FPR, and a second potential lead (SPL) connected to the SPR and separated from the FPL by an insulation sheet. The SPL and sheet cover the resistive element.
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公开(公告)号：US09917435B1
公开(公告)日：2018-03-13
申请号：US15263691
申请日：2016-09-13
发明人： Xi Lu , Chingchi Chen , Michael W. Degner , Zhuxian Xu , Ke Zou
IPC分类号： H02H5/04 , H02H3/08 , H02M7/5387
CPC分类号： H02M7/5387 , B60K6/22 , B60K6/26 , B60K6/48 , B60Y2400/61 , H02H3/085 , H02M1/08 , H02M7/53871 , H02M2001/0009 , H02M2001/327
摘要： A power switching circuit provides temperature compensation for an insulated gate power switching device. A timing circuit determines a switch timing signal comprising desired on and off switching times of the switching device. A temperature monitor quantifies a device temperature. A gate drive profile generator generates a switching device drive signal according to the switch timing signal and having a dv/dt phase and a di/dt phase. The drive signal has a profile during the di/dt phase that is adjusted in response to the device temperature, and the drive signal has a profile during the dv/dt phase that is not adjusted in response to the device temperature.
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公开(公告)号：US20170274776A1
公开(公告)日：2017-09-28
申请号：US15077492
申请日：2016-03-22
发明人： Zhuxian Xu , Chingchi Chen , Xi Lu , Ke Zou
CPC分类号： B60L11/02 , B60L11/1814 , H01L27/0664 , H01L29/7396 , H02M3/158 , H02M7/533 , H02M7/53875 , H02M2001/0054 , H02M2001/007 , Y02B70/1491 , Y02T10/7258
摘要： A vehicle powertrain includes an IGBT that conducts current between a supply and load. The vehicle powertrain also includes a controller that applies voltage to a gate of the IGBT at a first level for a first duration that depends on a capacitance of the gate, and increases the voltage over a second duration based on a rate of change of the current falling below a threshold defined by a supply voltage for the load.
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公开(公告)号：US11173803B2
公开(公告)日：2021-11-16
申请号：US16166330
申请日：2018-10-22
发明人： Krishna Prasad Bhat , Jacek Brauner , Xi Lu , Theodore Joseph Filippi , Ke Zou , Allan Roy Gale , Michael W. Degner
摘要： A vehicle system includes a converter, outlets, and a switching arrangement electrically between the outlets and the converter. A controller is programmed to, responsive to a first request, operate the switching arrangement to electrically connect a line and a neutral to a first outlet and operate the converter to output single-phase power to the first outlet. Responsive to a second request, the controller is configured to operate the switching arrangement to electrically connect a plurality of lines and not the neutral to a second outlet, and operate the converter to output three-phase power to the second outlet.
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公开(公告)号：US11115019B2
公开(公告)日：2021-09-07
申请号：US15917476
申请日：2018-03-09
发明人： Xi Lu , Chingchi Chen
IPC分类号： H02H7/00 , H03K17/082 , H03K5/24
摘要： Circuitry includes a pair of switches arranged in series, and a gate driver. The gate driver, responsive to a magnitude of current through one of the switches exceeding a threshold, discharges a gate of the one through a first resistor. The gate driver also, responsive to a voltage across a parasitic inductance of the switch becoming zero, discharges the gate through a second resistor but not the first resistor.
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公开(公告)号：US20170264284A1
公开(公告)日：2017-09-14
申请号：US15067878
申请日：2016-03-11
发明人： Zhuxian Xu , Chingchi Chen , Ke Zou , Xi Lu , Michael W. Degner , Jun Kikuchi
IPC分类号： H03K17/16 , H03K17/567 , H02M1/088 , B60L11/18
摘要： A vehicle includes an electric machine, an IGBT, and a gate driver. The IGBT has a gate, an emitter, and a collector and is configured to flow an electric charge through a phase of the electric machine. The gate driver is configured to flow current onto the gate at a first level, and in response to a time integral of a voltage across the phase exceeding a predetermined level, transition from the first level to a second level less than the first level.
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公开(公告)号：US11133796B2
公开(公告)日：2021-09-28
申请号：US15067878
申请日：2016-03-11
发明人： Zhuxian Xu , Chingchi Chen , Ke Zou , Xi Lu , Michael W. Degner , Jun Kikuchi
IPC分类号： H02P1/00 , H03K17/16 , H02M1/08 , B60L50/51 , H02M1/088 , H03K17/567 , H02M7/5387 , H02M1/15 , H02M3/158 , H02M1/00
摘要： A vehicle includes an electric machine, an IGBT, and a gate driver. The IGBT has a gate, an emitter, and a collector and is configured to flow an electric charge through a phase of the electric machine. The gate driver is configured to flow current onto the gate at a first level, and in response to a time integral of a voltage across the phase exceeding a predetermined level, transition from the first level to a second level less than the first level.
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公开(公告)号：US10933761B1
公开(公告)日：2021-03-02
申请号：US16589744
申请日：2019-10-01
发明人： Xi Lu , Ke Zou , Krishna Prasad Bhat , Chingchi Chen , Michael W. Degner
IPC分类号： B60L53/22 , H02M7/5387 , H02M7/219 , H02M1/00 , B60L50/60
摘要： A system and method for powering an electrical load. The system and method including a first inverter for converting a first DC power provided from a battery within a vehicle to a first AC power. The system and method also including a rectifier that includes an input connected to a secondary winding of a transformer. The rectifier also having an output connected to at least two capacitors. The rectifier and capacitors converting the first AC power to a second DC power. The system and method also including an inverter for converting the second DC power to an output AC power that is supplied to a split-phase output. The system and method also connecting one leg of the split-phase output between the at least two capacitors and to a center tap of the transformer to modify a voltage amplitude of the second DC power.
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