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Class Information
Number: 475/116
Name: Planetary gear transmission systems or components > Fluid drive or control of planetary gearing > Fluid controlled mechanical clutch or brake
Description: Subject matter wherein a clutch* or brake* operated by fluid pressure is effective to regulate the speed ratio* of the planetary transmission.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7413525 |
Hydraulic control system for power transmission assembly |
Aug. 19, 2008 |
| 7410438 |
Switching-valve arrangement for a shifting system of an automatic transmission |
Aug. 12, 2008 |
| 7395736 |
All-wheel drive torque vectoring system |
Jul. 8, 2008 |
| 7347117 |
Hydraulic linear drive of a transmission actuator |
Mar. 25, 2008 |
| 7344466 |
Hydraulic control system of 7-speed automatic transmission for vehicle |
Mar. 18, 2008 |
| 7331902 |
Method for performing high throttle neutral to range shifts |
Feb. 19, 2008 |
| 7326141 |
Compact fault tolerant variable cross-drive electromechanical transmission |
Feb. 5, 2008 |
| 7326147 |
Continuously variable transmission apparatus |
Feb. 5, 2008 |
| 7322899 |
Electro-hydraulic control system for an electrically variable hybrid transmission |
Jan. 29, 2008 |
| 7314423 |
Hydraulic control system of 6-speed automatic transmission for vehicle |
Jan. 1, 2008 |
| 7306543 |
Automatic transmission controller |
Dec. 11, 2007 |
| 7273434 |
Automatic transmission brake for racing vehicles |
Sep. 25, 2007 |
| 7264085 |
Hydraulic passage structure of automatic transmission friction element |
Sep. 4, 2007 |
| 7255212 |
Hydraulic control circuit for automatic transmission of vehicle |
Aug. 14, 2007 |
| 7247114 |
Automatic transmission |
Jul. 24, 2007 |
| 7220206 |
Hydrostatically applied clutch system with multiplex master cylinders |
May. 22, 2007 |
| 7214165 |
Method of automatically flushing debris from an electrically-operated hydraulic valve |
May. 8, 2007 |
| 7163481 |
Driving force transmitting system |
Jan. 16, 2007 |
| 7134536 |
Hydraulic control circuit for automatic transmission of vehicle |
Nov. 14, 2006 |
| 7104381 |
Dual connecting and disconnecting apparatus |
Sep. 12, 2006 |
| 7090608 |
Wheel transmission |
Aug. 15, 2006 |
| 7083537 |
Multiple speed automatic transmission for motor vehicle |
Aug. 1, 2006 |
| 7070532 |
Planetary transmission having a rotating-type torque-transmitting mechanism with a stationary piston |
Jul. 4, 2006 |
| 7059987 |
Hydraulic port separator in an automatic transmission |
Jun. 13, 2006 |
| 7052433 |
Automatic transmission |
May. 30, 2006 |
| 7043347 |
Hydraulic clutch control of vehicle power train |
May. 9, 2006 |
| 7004871 |
Automatic transmission apparatus |
Feb. 28, 2006 |
| 7004872 |
Control method and device for automatic transmission |
Feb. 28, 2006 |
| 7001298 |
Clutch system for a transmission |
Feb. 21, 2006 |
| 7001299 |
Control apparatus of automatic transmission |
Feb. 21, 2006 |
| 6966861 |
Shift control for a two-axis automatic transmission for a vehicle |
Nov. 22, 2005 |
| 6964628 |
Methods and systems for improving the operation of transmissions for motor vehicles |
Nov. 15, 2005 |
| 6960146 |
Torque ratio control apparatus for a multi-speed transmission |
Nov. 1, 2005 |
| 6942591 |
Hydraulic control system of a six-speed automatic transmission |
Sep. 13, 2005 |
| 6905433 |
Device for control of a hydraulically actuatable shifting element |
Jun. 14, 2005 |
| 6902506 |
Limited slip differential with integrated solenoid valve and plenum |
Jun. 7, 2005 |
| 6896636 |
Oil system |
May. 24, 2005 |
| 6860832 |
Transmission assembly |
Mar. 1, 2005 |
| 6860830 |
Hydraulic control device for automatic transmission |
Mar. 1, 2005 |
| 6843745 |
Automatic transmission |
Jan. 18, 2005 |
| 6835151 |
Oil pressure control device of automatic transmission |
Dec. 28, 2004 |
| 6835150 |
Method of sealing low/reverse piston fluid circuit within an automatic transmission case |
Dec. 28, 2004 |
| 6814680 |
Methods and systems for improving the operation of transmissions for motor vehicles |
Nov. 9, 2004 |
| 6802792 |
Oil pressure control device of automatic transmission |
Oct. 12, 2004 |
| 6779418 |
Method for determination of characteristics of a transmission |
Aug. 24, 2004 |
| 6752734 |
Switch valve |
Jun. 22, 2004 |
| 6736746 |
Vehicle-running control device |
May. 18, 2004 |
| 6736747 |
Forward clutch control valve assembly |
May. 18, 2004 |
| 6726589 |
Apparatus and method for controlling oil pressure of an automatic transmission |
Apr. 27, 2004 |
| 6716127 |
Control system for automatic transmission |
Apr. 6, 2004 |
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