Input vector set for position detection of PM motors
US-9917542-B2 · Mar 13, 2018 · US
Angular Position Estimation for PM Motors
US2017272012A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2017272012-A1 |
| Application number | US-201715615074-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jun 6, 2017 |
| Priority date | Sep 24, 2014 |
| Publication date | Sep 21, 2017 |
| Grant date | — |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A method of determining the angular position (θ) of a rotor of an N-phase permanent magnet motor (PMM) includes providing a processor having an associated memory, wherein the memory stores an angular position determination (APD) equation or hardware is included implementing the APD equation. The APD equation determines the angular position from N-phase measurements obtained from the stator windings associated with each of the N-phases. A voltage or a current is forced upon the stator terminals of the stator windings for each of the N-phases, a resulting stator current or stator voltage is sensed to provide the N-phase measurements responsive to the forcing of the voltage or current, and the APD equation is used to determine the angular position from the N-phase measurements.
First claim
Opening claim text (preview).
1 . A method of determining an angular position of a rotor in an N-phase permanent magnet motor (PMM), comprising: providing a processor having an associated memory, wherein said memory stores an angular position determination (APD) equation or hardware is included implementing said APD equation, said APD equation determining said angular position from N-phase measurements obtained from stator windings associated with each of said N-phases; forcing a voltage or a current upon stator terminals of said stator windings for each of said N-phases; sensing a resulting stator current or stator voltage to provide said N-phase measurements responsive to said forcing said voltage or current, and using said APD equation, determining said angular position from said N-phase measurements. 2 . The method of claim 1 , wherein said stator terminals are coupled into a control loop that includes said processor. 3 . The method of claim 2 , wherein said control loop comprises a field-oriented controller (FOC) control loop. 4 . The method of claim 1 , wherein said forcing comprises forcing said current and said sensing comprises sensing said resulting stator voltage. 5 . The method of claim 1 , wherein said forcing comprises forcing said voltage and said sensing comprises sensing said resulting stator current. 6 . The method of claim 5 , wherein said sensing said resulting stator current comprises sensorless sensing. 7 . The method of claim 1 , wherein said processor and said associated memory are both provided on a microcontroller unit (MCU) chip.
Assignees
Inventors
Classifications
- H02P6/182Primary
using back-emf in windings · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US2017272012A1 cover?
- A method of determining the angular position (θ) of a rotor of an N-phase permanent magnet motor (PMM) includes providing a processor having an associated memory, wherein the memory stores an angular position determination (APD) equation or hardware is included implementing the APD equation. The APD equation determines the angular position from N-phase measurements obtained from the stator wind…
- Who is the assignee on this patent?
- Texas Instruments Inc
- 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 Thu Sep 21 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).