Switching frequency modulation utilizing rotor position

US8941346B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8941346-B2
Application numberUS-201213664596-A
CountryUS
Kind codeB2
Filing dateOct 31, 2012
Priority dateOct 31, 2012
Publication dateJan 27, 2015
Grant dateJan 27, 2015

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  2. Abstract

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  5. First independent claim

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Abstract

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A control system ( 128 ) for controlling a switched reluctance (SR) machine ( 110 ) having a rotor ( 116 ) and a stator ( 118 ) is provided. The control system ( 128 ) may include a converter circuit ( 122 ) operatively coupled to the stator ( 118 ) and including a plurality of switches ( 132 ) in selective communication with each phase of the stator ( 118 ) and a controller ( 130 ) in communication with each of the stator ( 118 ) and the converter circuit ( 122 ). The controller ( 130 ) may be configured to determine a position of the rotor ( 116 ) relative to the stator ( 118 ), and generate a modulated switching frequency ( 152 ) based on the rotor position.

First claim

Opening claim text (preview).

What is claimed is: 1. A control system for controlling a switched reluctance (SR) machine having a rotor and a stator, the control system comprising: a converter circuit operatively coupled to the stator and including a plurality of switches in selective communication with each phase of the stator; and a controller in communication with each of the stator and the converter circuit, the controller being configured to determine a position of the rotor relative to the stator, and…

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What does patent US8941346B2 cover?
A control system ( 128 ) for controlling a switched reluctance (SR) machine ( 110 ) having a rotor ( 116 ) and a stator ( 118 ) is provided. The control system ( 128 ) may include a converter circuit ( 122 ) operatively coupled to the stator ( 118 ) and including a plurality of switches ( 132 ) in selective communication with each phase of the stator ( 118 ) and a controller ( 130 ) in communic…
Who is the assignee on this patent?
Nee Brett, Williams Joshua, Caterpillar Inc
What technology area does this patent fall under?
Primary CPC classification H02P25/098. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Jan 27 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).