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Class Information
Number: 477/143
Name: Interrelated power delivery controls, including engine control > Transmission control > Transmission controlled by engine > By input manifold pressure or engine fuel control > Servo motor timing
Description: Subject matter wherein a speed ratio* of the gear transmission* is engaged by a fluid actuated piston forming a movable wall of a chamber and means is provided to regulate the buildup or release of fluid pressure in one or more of such chambers.

Sub-classes under this class:

Class Number Class Name Patents
477/153 Double acting servo 19
477/144 Downshift 79
477/155 Electric valve control 282
477/154 Speed responsive control 211
477/150 With fluid accumulator 90

Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8652008 Power transmission apparatus Feb. 18, 2014
8632439 Control device for vehicular lockup clutch Jan. 21, 2014
8568274 Hydraulic pressure supply control apparatus for automobile Oct. 29, 2013
8528684 Charge pressure reduction circuit for improved transmission efficiency Sep. 10, 2013
8447490 Vehicle power transmission apparatus May. 21, 2013
8392076 Control device of vehicular automatic transmission Mar. 5, 2013
8364368 Acceleration control apparatus for vehicle Jan. 29, 2013
8235868 Clutch control apparatus for vehicle Aug. 7, 2012
8216111 Clutch control for a transmission Jul. 10, 2012
8214117 Driving force controlling apparatus of vehicle Jul. 3, 2012
8206265 Control system for dual clutch transmission Jun. 26, 2012
8113989 Control of sequential downshifts in a transmission Feb. 14, 2012
7925407 Adjustment method for vehicle automatic transmission Apr. 12, 2011
7909733 Clutch end-of-fill detection strategy Mar. 22, 2011
7894964 Engine control apparatus Feb. 22, 2011
7892144 Method for the operation of a drivetrain Feb. 22, 2011
7853386 Control architecture and method for two-dimensional optimization of input speed and input torque in mode for a hybrid powertrain system Dec. 14, 2010
7832518 Torque distribution control in a motor vehicle Nov. 16, 2010
7789798 Transmission upshift control method Sep. 7, 2010
7775935 Overrun prevention system for an automatic transmission Aug. 17, 2010
7731628 Control apparatus for vehicle and method of controlling vehicle Jun. 8, 2010
7731629 Control apparatus for vehicle and method of controlling vehicle Jun. 8, 2010
7686738 Powertrain control apparatus and method Mar. 30, 2010
7651440 Control of engine torque reduction at upshift initiation Jan. 26, 2010
7563197 Shift control device and shift control method of automatic transmission Jul. 21, 2009
7527578 Electronic adaptive swap-shift control for an automatic transmission for automotive vehicles May. 5, 2009
7524267 Control apparatus for vehicular automatic transmission Apr. 28, 2009
7497799 Torque transmitting mechanism engagement control system and method Mar. 3, 2009
7464618 Hydraulic control apparatus for an automatic dual clutch transmission Dec. 16, 2008
7416515 Engine torque control device Aug. 26, 2008
7390285 Hydraulic control system of automatic transmission for vehicle Jun. 24, 2008
7384375 Apparatus for controlling an automatic transmission Jun. 10, 2008
7357754 Mechanism and method of controlling an automatic shifting power transmission to effect a first gear launch Apr. 15, 2008
7351183 Ratio shift control for a multiple ratio automatic transmission Apr. 1, 2008
7344477 Up shift control with overrunning clutch Mar. 18, 2008
7318789 Hydraulic control system for automatic transmission Jan. 15, 2008
7306543 Automatic transmission controller Dec. 11, 2007
7291092 Shift control apparatus and method for automatic transmission Nov. 6, 2007
7282012 Electronic adaptive swap-shift control for an automatic transmission for automotive vehicles Oct. 16, 2007
7194348 High acceleration time shift control apparatus and control method for vehicle Mar. 20, 2007
7115069 Electronic adaptive swap-shift control for an automatic transmission for automotive vehicles Oct. 3, 2006
7077777 Continuously variable transmission Jul. 18, 2006
7066862 Method for a shift control of a power shift transmission Jun. 27, 2006
7056263 Electronic clutch-to-clutch transmission control system Jun. 6, 2006
7048673 Shift control method for six-speed automatic transmission May. 23, 2006
6997843 Shift control apparatus for automatic transmission Feb. 14, 2006
6969340 Control apparatus and control method for automatic transmission Nov. 29, 2005
6955629 Shift control apparatus for an automatic transmission Oct. 18, 2005
6887183 System and method of controlling automatic transmission May. 3, 2005
6755091 Transmission and method for controlling a transmission for a motor vehicle Jun. 29, 2004

1 2 3 4 5

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