Controlling a brushless motor
US-12095402-B2 · Sep 17, 2024 · US
Control of a brushless motor
US9065367B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9065367-B2 |
| Application number | US-201113088098-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 15, 2011 |
| Priority date | Apr 16, 2010 |
| Publication date | Jun 23, 2015 |
| Grant date | Jun 23, 2015 |
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Abstract
Official abstract text for this publication.
A method of controlling a brushless motor that includes exciting a winding of the motor until current in the winding exceeds a threshold, and then continuing to excite the winding for an overrun period. The length of the overrun period is adjusted in response to a change in one of time, motor speed and excitation voltage. Additionally, a control system that implements the method, and a motor system that incorporates the control system.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method of controlling a brushless motor, the method comprising: exciting a winding of the motor until current in the winding exceeds a threshold; continuing to excite the winding for an overrun period; and adjusting a length of the overrun period in response to a change in one of time, motor speed and excitation voltage. 2. The method of claim 1 , wherein the overrun period is defined by a waveform that varies periodically…
Assignees
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Classifications
- H02P6/14Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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- What does patent US9065367B2 cover?
- A method of controlling a brushless motor that includes exciting a winding of the motor until current in the winding exceeds a threshold, and then continuing to excite the winding for an overrun period. The length of the overrun period is adjusted in response to a change in one of time, motor speed and excitation voltage. Additionally, a control system that implements the method, and a motor sy…
- Who is the assignee on this patent?
- Greetham Stephen, Dyson Technology Ltd
- What technology area does this patent fall under?
- Primary CPC classification H02P6/14. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jun 23 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).