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公开(公告)号：US20170327988A1
公开(公告)日：2017-11-16
申请号：US15150684
申请日：2016-05-10
Applicant: General Electric Company
Inventor： Shahid Ali K , Ashutosh Kulkarni , Rahul Radhakrishna Pillai
CPC classification number: D06F37/203 , D06F33/02 , D06F37/24 , D06F37/30 , D06F37/304 , D06F2202/12 , D06F2204/065 , D06F2222/00 , G01M1/16
Abstract: Systems and methods for determining an out of balance condition of a washing machine are provided. In particular, a plurality of angular positions of a motor associated with a washing machine can be determined. The washing machine can include a wash tub, and a wash basket rotatably mounted within the wash tub. The motor is configured to rotate the wash basket within said wash tub. Data indicative of at least a single phase of motor current being applied to the motor can be obtained while the wash basket rotates. The data can be spatially sampled over at least a subset of the plurality of angular positions of the motor. An out of balance condition associated with the washing machine can be determined based at least in part on the sampled data.
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公开(公告)号：US10693407B2
公开(公告)日：2020-06-23
申请号：US15462204
申请日：2017-03-17
Applicant: General Electric Company
Inventor： Shahid Ali , Rahul Radhakrishna Pillai , Jigarkumar Narendrabhai Hingu , Vandana Rallabandi
Abstract: A driver unit for an interior permanent magnet motor (IPM) is presented. The driver unit includes sensor electronics configured to sense a phase voltage corresponding to one or more phase terminals of the IPM motor to generate a corresponding phase voltage signal. The driver unit further includes a controller electrically coupled to the sensor electronics and configured to extract one or more triplen harmonics of an order of a ninth harmonic and higher than the ninth harmonic of a fundamental frequency of the phase voltage signal corresponding to the one or more phase terminals. The controller is further configured to determine an angular position of a rotor of the IPM motor based on the extracted one or more triplen harmonics. Related motor assembly and method for controlling the IPM motor are also presented.
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公开(公告)号：US10330754B2
公开(公告)日：2019-06-25
申请号：US15396968
申请日：2017-01-03
Applicant: General Electric Company
Inventor： Daniel Garcia , Tamer Fahed Khalaf , Jason Monclair Pittman , Anton Linz , William John Bonneau , Chinmoy Goswami , Vandana Rallabandi , Rahul Radhakrishna Pillai , Srinivas Satya Sai Mallampalli , Suma Memana Narayana Bhat , Viswanathan Kanakasabai
IPC: G01V3/00 , G01R33/38 , H02K7/14 , H02K11/04 , H02K13/00 , A61B5/055 , H02K1/24 , H02K11/215 , G01R33/28 , G01R33/3815 , H02P25/02
Abstract: A stator-less electric motor for an MRI system is provided. The stator-less electric motor includes a body, a rotor rotatable connected to the body, and at least one coil winding disposed on the rotor. The at least one coil winding is arranged so as to rotate the rotor when energized via an electrical current in the presence of a magnetic field generated by a magnet assembly of the MRI system.
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公开(公告)号：US10060067B2
公开(公告)日：2018-08-28
申请号：US15150684
申请日：2016-05-10
Applicant: General Electric Company
Inventor： Shahid Ali K , Ashutosh Kulkarni , Rahul Radhakrishna Pillai
CPC classification number: D06F37/203 , D06F33/02 , D06F37/24 , D06F37/30 , D06F37/304 , D06F2202/12 , D06F2204/065 , D06F2222/00 , G01M1/16
Abstract: Systems and methods for determining an out of balance condition of a washing machine are provided. In particular, a plurality of angular positions of a motor associated with a washing machine can be determined. The washing machine can include a wash tub, and a wash basket rotatably mounted within the wash tub. The motor is configured to rotate the wash basket within said wash tub. Data indicative of at least a single phase of motor current being applied to the motor can be obtained while the wash basket rotates. The data can be spatially sampled over at least a subset of the plurality of angular positions of the motor. An out of balance condition associated with the washing machine can be determined based at least in part on the sampled data.
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