H02P 2203/09
Motor speed determination based on the current and/or voltage without using a
Official title: Motor speed determination based on the current and/or voltage without using a tachogenerator or a physical encoder
H02P2203/09 (Motor speed determination based on the current and/or voltage without using a) appears on 74 US grants and 78 published applications in this corpus.
Search patents in H02P- Granted patents
- 74
- Published applications
- 78
- Assignees
- 66
- Inventors
- 183
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 1 | 1 |
| 2007 | 4 | 3 |
| 2008 | 0 | 2 |
| 2009 | 3 | 3 |
| 2010 | 2 | 6 |
| 2011 | 1 | 4 |
| 2012 | 4 | 1 |
| 2013 | 5 | 2 |
| 2014 | 4 | 2 |
| 2015 | 0 | 3 |
| 2016 | 5 | 1 |
| 2017 | 1 | 5 |
| 2018 | 2 | 3 |
| 2019 | 4 | 8 |
| 2020 | 7 | 11 |
| 2021 | 5 | 5 |
| 2022 | 11 | 7 |
| 2023 | 6 | 2 |
| 2024 | 3 | 2 |
| 2025 | 1 | 1 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Tunable circuit for rotary position detection28 Apr 2026US 12,614,996 B2Texas Instruments Incorporated
- Stepless regulation fan3 Mar 2026US 12,565,898 B1
- Electrical submersible pump control13 May 2025US 12,297,823 B2Sensia LLC
- Manufacturing-sensitive control of high rotor pole switched reluctance motors29 Oct 2024US 12,132,427 B2Turntide Technologies, Inc.
- Frequency converter23 Apr 2024US 11,967,890 B2Lenze SE
- Motor Control Device, Motor Control Method, and Motor Control System13 Aug 2026US 2026/0238147 A1Astemo, Ltd.
- Method for determining and/or calculating a rotational speed and an angle in sensorless drives, as well as a computer program and a device23 Jul 2026US 2026/0213684 A1Schaeffler Technologies AG & Co. KG
- Stepless regulation fan5 Mar 2026US 2026/0063132 A1Guangdong Aoyun Technology Co., Ltd.
- Detection of a rotor position15 Jan 2026US 2026/0018973 A1Schaeffler Technologies AG & Co. KG
- Method for Detecting Field Magnet Position of an Electric Motor7 Aug 2025US 2025/0253783 A1Shinano Kenshi Co., Ltd.
Most cited
By later US patents
- Motor control circuit47US 5,973,473 ATherm-O-Disc, Incorporated · 1999
- System and method for controlling motor using parameter associated with magnetic flux21US 7,772,790 B2Denso Corporation · 2010
- Operation of an electrical machine20US 7,057,362 B2Switched Reluctance Drives Limited · 2006
- Motor control device19US 7,504,797 B2Sanyo Electric Co., Ltd. · 2009
- System and method for motor speed estimation using hybrid model reference adaptive system17US 7,193,387 B1Rockwell Automation Technologies, Inc. · 2007