H02P 21/143
Inertia or moment of inertia estimation
Official title: {Inertia or moment of inertia estimation}
H02P21/143 (Inertia or moment of inertia estimation) appears on 27 US grants and 31 published applications in this corpus.
Search patents in H02P- Granted patents
- 27
- Published applications
- 31
- Assignees
- 30
- Inventors
- 92
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 3 |
| 2014 | 1 | 1 |
| 2015 | 3 | 1 |
| 2016 | 0 | 0 |
| 2017 | 3 | 6 |
| 2018 | 4 | 2 |
| 2019 | 2 | 3 |
| 2020 | 0 | 1 |
| 2021 | 3 | 0 |
| 2022 | 0 | 3 |
| 2023 | 2 | 7 |
| 2024 | 6 | 0 |
| 2025 | 0 | 3 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Method and an apparatus for computing moment of inertia in a motor speed controller, and a speed control method and apparatus for a motor17US 5,175,483 AHitachi, Ltd. · 1992
- Electric motor controller comprising function for simultaneously estimating inertia, friction, and spring4US 8,872,463 B2Fanuc Corporation · 2014
- Motor control device3US 8,963,461 B2Toshiba Schneider Inverter Corporation · 2015
- Motor control constant calculation device3US 9,859,836 B2Mitsubishi Electric Corporation · 2018
- Determination of stator winding resistance in an electric machine2US 9,647,602 B1GM Global Technology Operations LLC · 2017