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Class Information
Number: 477/68
Name: Interrelated power delivery controls, including engine control > Transmission control > Including fluid drive > Ratio control
Description: Subject matter wherein the speed ratio of the fluid torque transmitting means is regulated by the engine*.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7584040 |
Method of CVT control in a vehicle for adapting its noise characteristics with permanent and transient modes |
Sep. 1, 2009 |
| 7529607 |
Method for controlling selection of an automatic transmission gear ratio |
May. 5, 2009 |
| 7487026 |
Vehicle drive force control apparatus |
Feb. 3, 2009 |
| 7416513 |
Variable resolution single lever speed control for a hydrostatic transmission |
Aug. 26, 2008 |
| 7390282 |
Directional shift in hydrostatic drive work machine |
Jun. 24, 2008 |
| 7344473 |
Hydraulic transmission vehicle |
Mar. 18, 2008 |
| 7303505 |
Method for controlling rate of change of ratio in a continuously variable transmission |
Dec. 4, 2007 |
| 7288046 |
Torque converter slip control for multi-displacement engine |
Oct. 30, 2007 |
| 7247122 |
Downshift in hydrostatic drive work machine |
Jul. 24, 2007 |
| 7216025 |
Adaptive pressure control method for synchronous downshifts in a multiple-ratio transmission |
May. 8, 2007 |
| 7189185 |
Method for operating a drive train in a motor vehicle |
Mar. 13, 2007 |
| 7107135 |
Auxiliary gearset shift progression command generator for a swap-shift automatic transmission |
Sep. 12, 2006 |
| 7047118 |
Method and apparatus for regulating the transmission ratio of a continuously variable transmission |
May. 16, 2006 |
| 7037236 |
Hydraulic transmission vehicle |
May. 2, 2006 |
| 7029421 |
Method for operating an automatic gearbox on a motor vehicle |
Apr. 18, 2006 |
| 7022044 |
Drive train for powering a mobile vehicle |
Apr. 4, 2006 |
| 6997837 |
Shift control system of automatic transmission for vehicle and shift control method thereof |
Feb. 14, 2006 |
| 6988571 |
Crawler tractor |
Jan. 24, 2006 |
| 6950736 |
Shift control method and apparatus of an automatic transmission |
Sep. 27, 2005 |
| 6908412 |
Control apparatus for continuously variable transmission |
Jun. 21, 2005 |
| 6885929 |
Control method for an automatic transmission of an engine-driven vehicle |
Apr. 26, 2005 |
| 6849028 |
Propelling transmission control apparatus for a working vehicle having a hydrostatic stepless transmission |
Feb. 1, 2005 |
| 6839617 |
Extension of operating range of feedback in CVT ratio control |
Jan. 4, 2005 |
| 6830533 |
Apparatus and method for controlling transmission ratio of toroidal-type continuously variable transmission unit for continuously variable transmission apparatus |
Dec. 14, 2004 |
| 6827667 |
Select-shock control system and method for automotive automatic transmission |
Dec. 7, 2004 |
| 6723021 |
Gear actuator for engaging and/or disengaging gears of a transmission |
Apr. 20, 2004 |
| 6712735 |
Control apparatus for automatic transmission |
Mar. 30, 2004 |
| 6641502 |
Apparatus for controlling a motor vehicle transmission |
Nov. 4, 2003 |
| 6640177 |
Method for determining a transmission ratio for an automatic transmission arranged in a drive train of a motor vehicle |
Oct. 28, 2003 |
| 6632156 |
Method of controlling continuously variable transmission |
Oct. 14, 2003 |
| 6575872 |
Method and apparatus for making smooth shifts during mode changes of an HMT when using mechanical clutches |
Jun. 10, 2003 |
| 6549839 |
Vehicle drive system |
Apr. 15, 2003 |
| 6485391 |
Control system for continuously variable automatic transmission |
Nov. 26, 2002 |
| 6471619 |
Transmission control method |
Oct. 29, 2002 |
| 6402660 |
Apparatus and method for adaptively shifting between ranges in a continuously variable transmission |
Jun. 11, 2002 |
| 6295497 |
Method and apparatus for adaptively shifting ranges in a continuously variable transmission |
Sep. 25, 2001 |
| 6292730 |
Speed ratio controller and control method of continuously transmisson |
Sep. 18, 2001 |
| 6250180 |
Hydromechanical traveling mechanism |
Jun. 26, 2001 |
| 6223111 |
Method and apparatus for generating velocity commands for a continuously variable transmission |
Apr. 24, 2001 |
| 6212458 |
Adaptive brake compensation for grade braking |
Apr. 3, 2001 |
| 6157884 |
Speed ratio control device and control method for automatic transmission |
Dec. 5, 2000 |
| 6080074 |
Process for precise adjustment of a hydrostatic and mechanical torque division gearing |
Jun. 27, 2000 |
| 6067493 |
Speed change ratio controller for continuously variable transmission |
May. 23, 2000 |
| 6044317 |
Method for eliminating instability in a vehicle automatic transmission which constantly shifts from one speed ratio to the higher ratio and conversely |
Mar. 28, 2000 |
| 6042502 |
Method and apparatus for generating velocity commands in response to rapid changes in operator inputs |
Mar. 28, 2000 |
| 5730683 |
Shift control method for automatic transmission and apparatus thereof |
Mar. 24, 1998 |
| 5682315 |
Method and system for controlling a split torque transmission |
Oct. 28, 1997 |
| 5678462 |
Hydrostatic travelling drive |
Oct. 21, 1997 |
| 5642283 |
Multiple ratio transmission with swap-shift controls |
Jun. 24, 1997 |
| 5636119 |
Downstream rate limiting method in transmission control |
Jun. 3, 1997 |
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