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Electric motor phase control system
US9130494B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9130494-B2 |
| Application number | US-201314037846-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 26, 2013 |
| Priority date | Sep 26, 2013 |
| Publication date | Sep 8, 2015 |
| Grant date | Sep 8, 2015 |
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Abstract
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A method and apparatus for controlling an electric motor. A controller is configured to identify a start time for a signal based on a back electromotive force present in an electric motor during operation of the electric motor. The start time is for a position of a rotor relative to a group of coils. The controller is further configured to send the signal to the group of coils using the start time identified. An effect of the back electromotive force on the signal is reduced.
First claim
Opening claim text (preview).
What is claimed is: 1. An apparatus comprising: a controller configured to identify a start time for a signal based on a back electromotive force present in an electric motor during operation of the electric motor, wherein the start time is for a position of a rotor relative to a group of coils; and send the signal to the group of coils using the start time identified, wherein an effect of the back electromotive force on the signal is reduced; wherein the signal is a curren…
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- H02P6/182Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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- What does patent US9130494B2 cover?
- A method and apparatus for controlling an electric motor. A controller is configured to identify a start time for a signal based on a back electromotive force present in an electric motor during operation of the electric motor. The start time is for a position of a rotor relative to a group of coils. The controller is further configured to send the signal to the group of coils using the start t…
- Who is the assignee on this patent?
- Boeing Co
- What technology area does this patent fall under?
- Primary CPC classification H02P6/182. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Sep 08 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).