H02P 23/30
Direct torque control [dtc] or field acceleration method [fam]
Official title: Direct torque control [DTC] or field acceleration method [FAM]
H02P23/30 (Direct torque control [dtc] or field acceleration method [fam]) appears on 65 US grants and 65 published applications in this corpus.
Search patents in H02P- Granted patents
- 65
- Published applications
- 65
- Assignees
- 55
- Inventors
- 175
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 3 |
| 2003 | 2 | 2 |
| 2004 | 4 | 0 |
| 2005 | 0 | 2 |
| 2006 | 2 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 2 |
| 2009 | 1 | 2 |
| 2010 | 1 | 2 |
| 2011 | 1 | 1 |
| 2012 | 3 | 1 |
| 2013 | 0 | 4 |
| 2014 | 5 | 8 |
| 2015 | 1 | 1 |
| 2016 | 4 | 5 |
| 2017 | 5 | 1 |
| 2018 | 3 | 3 |
| 2019 | 2 | 3 |
| 2020 | 2 | 1 |
| 2021 | 3 | 2 |
| 2022 | 1 | 6 |
| 2023 | 4 | 4 |
| 2024 | 3 | 4 |
| 2025 | 4 | 3 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Frequency characteristic measurement apparatus and frequency characteristic measurement method15 Sep 2026US 12,738,873 B2Panasonic Intellectual Property Management Co., Ltd.
- AC motor control device and tangible computer readable storage medium15 Sep 2026US 12,738,874 B2Denso Corporation
- Method, an arrangement and a frequency converter for controlling vibration of an electric machine23 Sep 2025US 12,422,336 B2ABB Schweiz AG
- Power tool including current-based field weakening29 Jul 2025US 12,375,022 B2Milwaukee Electric Tool Corporation
- Motor control device and motor control method8 Jul 2025US 12,351,251 B2Jtekt Corporation
- Motor control device16 Jul 2026US 2026/0205040 A1Fanuc Corporation
- Motor control device26 Mar 2026US 2026/0088747 A1Toyota Jidosha Kabushiki Kaisha
- Motor driver5 Mar 2026US 2026/0066829 A1Mitsubishi Electric Corporation
- Power tool including current-based field weakening15 Jan 2026US 2026/0019023 A1Milwaukee Electric Tool Corporation
- Motor control20 Nov 2025US 2025/0357879 A1Cypress Semiconductor Corporation
Most cited
By later US patents
- Four quadrant motor controller minimizing distortion index88US 5,585,708 AKenetech Windpower, Inc. · 1996
- Sensorless control system for synchronous motor46US 6,690,137 B2Hitachi, Ltd. · 2004
- Method and apparatus for motor control42US 7,586,286 B2Continental Automotive Systems US, Inc. · 2009
- Controller for a wound rotor slip ring induction machine32US 6,448,735 B1ABB Automation Inc. · 2002
- Drive control apparatus and method of alternating current motor30US 6,781,333 B2Toyota Jidosha Kabushiki Kaisha · 2004