H02P 21/02
Arrangements or methods for the control of electric machines by vector control
Official title: specially adapted for optimising the efficiency at low load
H02P21/02 (Arrangements or methods for the control of electric machines by vector control) appears on 47 US grants and 56 published applications in this corpus.
Search patents in H02P- Granted patents
- 47
- Published applications
- 56
- Assignees
- 35
- Inventors
- 117
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 3 |
| 2008 | 2 | 4 |
| 2009 | 3 | 3 |
| 2010 | 3 | 2 |
| 2011 | 2 | 1 |
| 2012 | 2 | 2 |
| 2013 | 3 | 1 |
| 2014 | 2 | 3 |
| 2015 | 2 | 3 |
| 2016 | 0 | 2 |
| 2017 | 5 | 4 |
| 2018 | 1 | 0 |
| 2019 | 1 | 2 |
| 2020 | 1 | 6 |
| 2021 | 4 | 4 |
| 2022 | 3 | 2 |
| 2023 | 2 | 5 |
| 2024 | 5 | 2 |
| 2025 | 1 | 3 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Power converter22 Sep 2026US 12,744,479 B2Hitachi Industrial Equipment Systems Co., Ltd.
- Boosted converter for pulsed electric machine control21 Apr 2026US 12,609,646 B2Tula eTechnology, Inc.
- Methods of reducing vibrations for electric motors14 Jan 2025US 12,199,532 B2Tula eTechnology, Inc.
- Method for tracing MTPA curve of vehicle permanent magnet synchronous motor based on DC power1 Oct 2024US 12,107,523 B2Zhejiang University City College
- Dual-motor unit for a flywheel energy storage system with a nonlinear overall power characteristic curve17 Sep 2024US 12,095,400 B2Adaptive Balancing Power GmbH
- Power tool motor control and methods associated therewith7 May 2026US 2026/0128692 A1Techtronic Cordless GP
- Stall detection in field-oriented sensorless motor control20 Nov 2025US 2025/0357873 A1Black & Decker Inc.
- Electrical Power System10 Apr 2025US 2025/0118968 A1InnCat Ltd
- Power Converter20 Feb 2025US 2025/0062708 A1Hitachi Industrial Equipment Systems Co., Ltd.
- Boosted converter for pulsed electric machine control25 Apr 2024US 2024/0136968 A1Tula eTechnology, Inc.
Most cited
By later US patents
- Large capacity variable speed PWM spatial vector type sub-harmonic system for driving AC electric motor54US 5,298,848 AHitachi, Ltd. · 1994
- Boosted converter for pulsed electric machine control42US 10,944,352 B2Tula eTechnology, Inc. · 2021
- Variable-flux motor drive system42US 8,552,678 B2Kabushiki Kaisha Toshiba · 2013
- Controller for permanent magnet synchronous motor38US 5,652,495 AMatsushita Electric Industrial Co., Ltd. · 1997
- Motor control apparatus and motor control method27US 6,674,262 B2Nissan Motor Co., Ltd. · 2004