ClassID:

148535

F16D2048/0221 - CPC Classification

Classification description:

External control of clutches; Control by fluid pressure Valves for clutch control systems; Details thereof

Recent Application in this class:
#1
20260117860
2026-04-30

SYSTEM AND METHOD FOR CALIBRATING TRANSMISSION

#2
20250354588
2025-11-20

SELECTIVE FLUID DELIVERY UNIT FOR A POWER TRANSMISSION

#3
20240281008
2024-08-22

METHOD FOR THE VALVE CONTROL OF A HYDRAULIC VALVE

#4
20240280147
2024-08-22

HYDRAULIC ASSEMBLY, FRICTION CLUTCH AND METHOD FOR OPERATING A FRICTION CLUTCH

#5
20240209906
2024-06-27

METHOD FOR CONTROLLING A HYDRAULIC CONTROL DEVICE

#6
20240093779
2024-03-21

Method for controlling a hydraulic unit in particular for a drivetrain of a motor vehicle, hydraulic unit and drivetrain with hydraulic unit

#7
20230341013
2023-10-26

System for operating and lubricating clutch of work vehicle

#8
20230228303
2023-07-20

Methods And Systems For Improving The Operation Of Transmissions For Motor Vehicles

#9
20230097474
2023-03-30

Fluidic control system

#10
20230088401
2023-03-23

Hydraulic assembly, hydraulically actuated consumer with such a hydraulic assembly, and method for hydraulic actuation of a consumer

#11
20230086720
2023-03-23

Hydraulic control system

#12
20230070513
2023-03-09

System and method for operating two or more actuators

#13
20230022875
2023-01-26

Line pressure control method for DCT

#14
20220411036
2022-12-29

PROPULSION AND BRAKING SYSTEM USING CLUTCH

#15
20220373042
2022-11-24

Method for controlling a friction clutch, and torque transmission device comprising same

#16
20220205496
2022-06-30

Actuation method for a hydraulic system having a pump and valves for supplying multiple consumers and a cooling and/or lubricating device, and hydraulic system

#17
20220196085
2022-06-23

Housing of a solenoid valve unit, solenoid valve unit, clutch actuation unit, vehicle clutch unit and method for installing the solenoid valve unit

#18
20220163074
2022-05-26

Systems and methods for rotary seal drag reduction

#19
20220003278
2022-01-06

Hydraulic control system

#20
20210364083
2021-11-25

Continuous variable transmission hydraulic pressure control device

#21
20210332861
2021-10-28

Hydraulic pressure control device

#22
20210310525
2021-10-07

Oil feed structure including hydraulic clutch

#23
20210215209
2021-07-15

Clutch control device

#24
20210199161
2021-07-01

Clutch control device

#25
20210156436
2021-05-27

Hydraulic control device and marine transmission

#26
20210108686
2021-04-15

Clutch control valve assembly having armature with anti-adhesion surface treatment

#27
20210062873
2021-03-04

Filtering device for damping vibrations in a conduit of a hydraulic actuation system for disengaging a clutch

#28
20210025461
2021-01-28

Clutch control device

#29
20200292068
2020-09-17

Hydraulic circuit, torque transmission device having a hydraulic circuit, and method for operating a hydraulic circuit

#30
20200256406
2020-08-13

Clutch current control circuit and electrical control valve having the same

#31
20200182262
2020-06-11

Fluidic control system

#32
20200102989
2020-04-02

Wet clutch assembly

#33
20200096062
2020-03-26

Hydraulic brake and disconnect for rotational machines

#34
20200088252
2020-03-19

Transmission Control System, Method, and Apparatus

#35
20190351756
2019-11-21

Electric all wheel drive two speed with chain drop

#36
20190186560
2019-06-20

Popoff valve in hydraulic arrangement for multi-clutch assembly

#37
20190186559
2019-06-20

Hydraulic control system of double piston clutch unit for automatic transmission

#38
20190128407
2019-05-02

Hydraulic control system for automatic transmission

#39
20190112005
2019-04-18

HYDRAULIC CLUTCH SYSTEM FOR MOTORCYCLE AND METHOD OF USING THE SAME

#40
20190078627
2019-03-14

System and method for controlling engine clutch slip for a hybrid vehicle

#41
20190063597
2019-02-28

Hydraulic control system for an automatic transmission

#42
20190047415
2019-02-14

VEHICLE DRIVING DEVICE, METHOD FOR VEHICLE DRIVING AND VEHICLE INCLUDING SAME

#43
20180328420
2018-11-15

OPERATION CONTROL DEVICE AND OPERATION CONTROL METHOD OF DIRECT CONTROL SOLENOID VALVE

#44
20180306251
2018-10-25

Clutch control device

#45
20180281765
2018-10-04

Fluid pressure control device

#46
20180274600
2018-09-27

Automatic transmission

#47
20180245642
2018-08-30

Hydraulic power transmission device

#48
20180238442
2018-08-23

Method for operating an automatic gearbox of a motor vehicle

#49
20180003248
2018-01-04

Fluid arrangement

#50
20170335907
2017-11-23

Hydraulic Circuit and Method for Controlling a Hydraulic Circuit

#51
20170335906
2017-11-23

System and method for clutch pressure control

#52
20170268659
2017-09-21

Hydraulic control device for an automatic transmission

#53
20170248178
2017-08-31

Hydraulic control system

#54
20170138417
2017-05-18

ACTUATOR WHICH CAN BE DRIVE-COUPLED AND HAS A VARIABLE DISPLACEMENT PUMP

#55
20170130812
2017-05-11

Four pass torque converter

#56
20170008396
2017-01-12

Clutch control device for four-wheel drive vehicle

#57
20160380479
2016-12-29

Hydraulically-driven extended-runtime flywheel uninterruptible power supply

#58
20160369854
2016-12-22

Clutch control hydraulic circuit for vehicle and vehicle including same

#59
20160363180
2016-12-15

Hydraulic system for a vehicle

#60
20160356322
2016-12-08

Hydrostatically operated clutch system

#61
20160312842
2016-10-27

SYSTEM AND METHOD FOR CLUTCH PRESSURE CONTROL

#62
20160169402
2016-06-16

Valve, and the use thereof for a clutch

#63
20160153551
2016-06-02

Hydraulic control arrangement for an automatic transmission

#64
20160146325
2016-05-26

Latching clutch control system

#65
20160116004
2016-04-28

Fluid control device

#66
20160069402
2016-03-10

System and method for clutch pressure control

#67
20160032989
2016-02-04

Method and apparatus for controlling clutch using fail-safe valve

#68
20160010706
2016-01-14

Method for operating a hydraulic disc coupling in an AWD vehicle and a coupling therefore

#69
20160010704
2016-01-14

Hydraulically-Driven Flywheel Uninterruptable Power Supply

#70
20160010698
2016-01-14

Shut off valve in a hydraulic disc coupling for an AWD vehicle

#71
20150337914
2015-11-26

Hydraulic supply apparatus

#72
20150337912
2015-11-26

Temperature compensated torque limiting valve

#73
20150276057
2015-10-01

CLUTCH CONTROL DEVICE FOR AUTOMATIC TRANSMISSION

#74
20150260269
2015-09-17

Control valve and method of controlling torque converter lock-up clutch

#75
20150232102
2015-08-20

Hydraulic control system for vehicle

#76
20150192178
2015-07-09

Universal solenoid driver

#77
20150167831
2015-06-18

Pressure control system of torque control device

#78
20150013785
2015-01-15

Selectable valve assembly for a vehicle transmission

#79
20140239737
2014-08-28

Electronic control device for controlling actuators

#80
20140230591
2014-08-21

Actuation device for actuating switching elements

#81
20130296093
2013-11-07

Latching clutch control system

#82
20130281253
2013-10-24

Latching clutch control system

#83
20130161146
2013-06-27

Two stage piston for faster clutch apply

#84
20130118854
2013-05-16

Transmission hydraulic control system having an automatic engine stop-start accumulator

#85
20130075222
2013-03-28

Pressure holding transmission clutch with ball check valve

#86
20130056657
2013-03-07

Latch valve for actuating a transmission control element

#87
20130025998
2013-01-31

CLUTCH DEVICE AND CONTROL METHOD

#88
20120211325
2012-08-23

Hydraulic control device for vehicular friction clutch

#89
20120174998
2012-07-12

Transmission hydraulic control system having fluid bypass sleeve

#90
20120107145
2012-05-03

Fan drive system with sensor feedback

#91
20120090948
2012-04-19

Powertrain pressure control system

#92
20120090947
2012-04-19

Powertrain pressure and flow control system for a torque converter clutch

#93
20120090946
2012-04-19

Powertrain pressure control system

#94
20120090945
2012-04-19

Powertrain pressure and flow control system for dog clutches

#95
20120090940
2012-04-19

Micro-electro-mechanical-systems based hydraulic control system for a dry dual clutch transmission

#96
20120090416
2012-04-19

Micro-electro-mechanical-systems based hydraulic control system for a wet dual clutch transmission

#97
20120085614
2012-04-12

Pressure medium supply device of a hydraulically actuated shifting element

#98
20110315503
2011-12-29

Selectable valve assembly for a vehicle transmission

#99
20110229323
2011-09-22

FAN DRIVE SYSTEM WITH OIL PRESSURE CONTROL

#100
20110220452
2011-09-15

Fan drive system with lubrication flow system

#101
20110155533
2011-06-30

Hydraulic system with a regulating circuit for controlling a motor vehicle transmission with automated actuation of clutches

#102
20110108140
2011-05-12

Latching check valve

#103
20110093176
2011-04-21

METHOD FOR ACTUATING A HYDRAULIC OPERATED CLUTCH AND CONTROLLER

#104
20110092335
2011-04-21

Hydraulic control systems for dual clutch transmissions

#105
20110056315
2011-03-10

Hydraulic control systems for dual clutch transmissions

#106
20110022280
2011-01-27

System for controlling peak torque in manual transmissions

#107
20100326543
2010-12-30

PRESSURE CONTROL VALVE

#108
20100313970
2010-12-16

Latching pressure regulator

#109
20100300828
2010-12-02

Dual-Stage Regulator Valve Assembly

#110
20100276022
2010-11-04

Pressure control valve device

#111
20100258192
2010-10-14

Method for actuating a hydraulic servo system

#112
20100242468
2010-09-30

Hydraulic element

#113
20100094517
2010-04-15

Flow control valve for clutch control device

#114
20100089717
2010-04-15

Mechanical slip failsafe system for a heavy duty multi-speed fan clutch

#115
20100087999
2010-04-08

Apparatus and Method for Detecting End-of-Fill at Clutch in Automatic Transmission

#116
20100081543
2010-04-01

Valve arrangement in a hydraulic control unit

#117
20090301588
2009-12-10

Solenoid valve

#118
20090291802
2009-11-26

Pressure medium-actuated control device of an automated step-by-step variable speed transmission

#119
20090275441
2009-11-05

Flow accumulator and clutch control system for automatic transmissions

#120
20090229905
2009-09-17

Driving force transmitting device for four-wheel drive vehicle

#121
20090215584
2009-08-27

HYDRAULIC CONTROL FOR A DUAL CLUTCH TRANSMISSION

#122
20090211830
2009-08-27

Driving force transmitting device for four-wheel drive vehicle

#123
20090158866
2009-06-25

Hydraulic control device of a clutch of a motor vehicle

#124
20090131219
2009-05-21

Activation control device for the clutch packs of a hydraulic double clutch

#125
20090127061
2009-05-21

Method of feeding a clutch cylinder of a hydraulically actuated clutch system

#126
20090125200
2009-05-14

Control system for a torque transmitting device in an automatic transmission

#127
20090120758
2009-05-14

Actuator For A Vehicle Clutch

#128
20090111643
2009-04-30

Method and apparatus to control clutch fill pressure in an electro-mechanical transmission

#129
20090111642
2009-04-30

Method and apparatus to control clutch stroke volume in an electro-mechanical transmission

#130
20090107135
2009-04-30

Low power HMT with by-pass valve

#131
20090093338
2009-04-09

Hydraulic control unit

#132
20090088296
2009-04-02

Control system for a transmission with a dual area apply piston for a torque-transmitting mechanism engagement

#133
20090071787
2009-03-19

Latching frictional engagement assembly using a check valve

#134
20090032755
2009-02-05

PTM self-bleed/failsafe open system for FWD and RWD

#135
20090014275
2009-01-15

Clutch system with a hydraulically actuated clutch device

#136
20090000897
2009-01-01

Hydraulic control for a dual clutch transmission

#137
20080283355
2008-11-20

Hydraulic system for a vehicle

#138
20080234100
2008-09-25

Control valve arrangement for controlling a starting clutch of an automatic transmission

#139
20080234099
2008-09-25

Control valve assembly for controlling a starting clutch of an automatic transmission

#140
20080149446
2008-06-26

HYDRAULIC CLUTCH CIRCUIT

#141
20080142334
2008-06-19

Device and method for actuating a clutch

#142
20080103009
2008-05-01

Self-contained torque-coupling assembly

#143
20080087337
2008-04-17

Hydraulic system for supplying hydraulic fluid to a component

#144
20080067022
2008-03-20

Gear shift module for an automatic transmission of a motor vehicle

#145
20080047617
2008-02-28

Hydraulic control apparatus

#146
20070175727
2007-08-02

Pressure controlled clutch peak torque limiter

#147
20070137715
2007-06-21

Hydraulic pressure control valve

#148
20070114105
2007-05-24

Hydraulic clutch actuation system

#149
20070080040
2007-04-12

Coupling device of a motor vehicle

#150
20070051580
2007-03-08

Clutch control regulator valve with end of fill detection

#151
20070028760
2007-02-08

Pressure control system for a torque-transmitting mechanism

#152
20070023250
2007-02-01

Clutches

#153
20070023091
2007-02-01

Proportional pressure control valve

#154
20060289267
2006-12-28

Hydraulic pressure control valve

#155
20060201771
2006-09-14

Fan drive having pressure control (fluid) of a wet friction fan drive

#156
20060169563
2006-08-03

Method and apparatus for controlling the cooling of a clutch and for switching a safety function of the clutch of a motor vehicle

#157
20060169338
2006-08-03

Hydraulic pressure control device for automatic transmission

#158
20060162328
2006-07-27

Simple action actuator with a hydraulic fast-opening valve for controlling a clutch

#159
20060157660
2006-07-20

Hydraulic system having at least one hydraulic valve for actuating a component

#160
20060131123
2006-06-22

Hydraulic system having an emergency release mechanism for a clutch having servo-assisted pedal actuation

#161
20060116240
2006-06-01

Automatic transmission controller

#162
20060105883
2006-05-18

Transfer case with variably controlled torque coupling device

#163
20060091340
2006-05-04

Latching valve for a torque-transmitting mechanism in a transmission

#164
20060065509
2006-03-30

Self bleeding system

#165
20060054443
2006-03-16

Hydraulic system, in particular for motor vehicles

#166
20060006043
2006-01-12

Dual clutch transmission clutch cooling circuit

#167
20050252326
2005-11-17

Device for driving a plurality of hydraulic shift cylinders and hydraulic supply system for a twin-clutch transmission

#168
20050211295
2005-09-29

Control valve apparatus

#169
20050194231
2005-09-08

Coupling device and improved method of controlling torque transmission

#170
20050183783
2005-08-25

Solenoid control valve

#171
20050137043
2005-06-23

Failsafe hydraulic circuit

#172
17365796
2022-11-22

Clutch-by-wire integration including human override

#173
17215333
2022-07-26

System and method for controlling a clutch plate assembly of a vehicle

#174
17101173
2021-11-16

Clutch hydraulic control circuit with a pilot operated failure mode response valve

#175
14731517
2017-12-12

Clutch assembly and system