F16D 2500/30402
Clutch friction coefficient
F16D2500/30402 (Clutch friction coefficient) appears on 42 US grants and 40 published applications in this corpus.
Search patents in F16D- Granted patents
- 42
- Published applications
- 40
- Assignees
- 27
- Inventors
- 108
- Latest grant
- 8 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 2 |
| 2003 | 2 | 1 |
| 2004 | 1 | 2 |
| 2005 | 1 | 3 |
| 2006 | 3 | 1 |
| 2007 | 1 | 1 |
| 2008 | 1 | 0 |
| 2009 | 1 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 2 |
| 2012 | 2 | 4 |
| 2013 | 4 | 2 |
| 2014 | 2 | 1 |
| 2015 | 0 | 1 |
| 2016 | 2 | 4 |
| 2017 | 3 | 3 |
| 2018 | 3 | 2 |
| 2019 | 2 | 1 |
| 2020 | 3 | 3 |
| 2021 | 1 | 2 |
| 2022 | 2 | 2 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Method for actively changing the frictional value of a hybrid disconnect clutch installed in a power train of a vehicle8 Jul 2025US 12,351,159 B2Schaeffler Technologies AG & Co. KG
- Clutch control method and apparatus, storage medium, and program product21 May 2024US 11,988,256 B2Aurobay Technology Co., Ltd.
- Energy based component wear model for clutch control offsets in an automatic transmission6 Sep 2022US 11,434,965 B2Fca US LLC
- Friction engagement element control system and method of controlling friction engagement element10 May 2022US 11,326,654 B2Mazda Motor Corporation
- Vehicle and method for operating a clutch as a starter element13 Apr 2021US 10,974,712 B2Audi AG
- Method for calibrating a clutch control29 May 2025US 2025/0172179 A1
- Clutch control method and apparatus, storage medium, and program product28 Dec 2023US 2023/0417296 A1Aurobay Technology Co., Ltd.
- Method and system for estimating clutch parameters24 Nov 2022US 2022/0373043 A1
- Method for actively changing the frictional value of a hybrid disconnect clutch installed in a power train of a vehicle5 May 2022US 2022/0135020 A1Schaeffler Technologies AG & Co. KG
- Friction engagement element control system and method of controlling friction engagement element19 Aug 2021US 2021/0254672 A1Mazda Motor Corporation
Most cited
By later US patents
- Control system for vehicular friction-type transmission clutch31US 4,503,734 ADaimler-Benz Aktiengesellschaft · 1985
- Method of controlling speed change clutches in a transmission28US 4,836,057 AKabushiki Kaisha Komatsu Seisakusho · 1989
- Continuously variable transmission having a continuously slipping clutch21US 6,412,617 B1Van Doorne's Transmissie B. V. · 2002
- Method of and apparatus for regulating the transmission of torque in power trains19US 5,890,992 ALuK Getriebe-Systeme GmbH · 1999
- Method and device for operating a clutch12US 7,077,783 B2Robert Bosch GmbH · 2006