Class 477/53 - Impeller-turbine-type

Subclass of Class 477 - Interrelated power delivery controls, including engine control
Definition: Subject matter wherein the fluid torque transmitting means is made up of at
No. of patents: 25
Last issue date: 07/19/2011

Number	Title	Issue Date
7980992	Multi function torque converter with turbine engine idle disconnect and method of controlling a multi function torque converter for engine idle disconnect A torque converter including a damper assembly connected to a hub for the torque converter; a turbine clutch connected to a turbine and the damper assembly; and a torque converter clutch connected to a cover for the torque converter and the damper assembly. In an id...	07/19/2011
7468017	Gear shifting completion determination device for automatic transmission An ECT_ECU of the present invention executes a program including the step of setting a determination time T for determining the completion of an upshift in an accelerator off mode to a short determination time T (X) when a slip value NS (NS=NE−NT) between an engin...	12/23/2008
7468016	Characteristics correction system for automatic transmission In a property correcting system of an automatic transmission according to the present invention, a difference of revolutions between input revolutions Nin of a torque converter and turbine revolutions Nt is compared with target rotational difference ΔN, and is incr...	12/23/2008
7422543	Rotation coupling employing torque converter and synchronization motor A system employing a torque converter and a synchronizing motor to start up a large rotational driver/load combination. The torque converter is employed to increase the rotational speed of the load to the maximum speed permitted by the torque converter. The synchron...	09/09/2008
7369932	System and method for turbine engine fault detection using discrete event system modeling A system and method is provided for fault detection in a turbine engine. The fault detection system and method uses discrete event system modeling to provide improved fault diagnosis and prognosis. The fault detection system and method receives sensor taken at multi...	05/06/2008
7361120	Control of lock-up clutch A lock-up clutch control device which controls a lock-up clutch (6) provided in a torque converter (5) interposed between an engine (3) and a transmission (4) used with a vehicle, is disclosed. The lock-up clutch control device has a diff...	04/22/2008
7357754	Mechanism and method of controlling an automatic shifting power transmission to effect a first gear launch The present invention provides a mechanism and method of launching a vehicle using a conventional automatic shifting power transmission. By slipping a first gear reaction clutch during a launch, an efficient hydrodynamic fluid drive with a low stall speed may be use...	04/15/2008
7331902	Method for performing high throttle neutral to range shifts According to a preferred embodiment of the present invention, a “special neutral” is commanded to initiate the neutral to range shift. The “special neutral” of the present invention is special in that while the transmission output speed remains unconstrained...	02/19/2008
7288046	Torque converter slip control for multi-displacement engine Prior to transitioning a multiple-displacement engine from a full-displacement engine operating mode to a partial-displacement engine operating mode, a base slip rate of a torque converter coupled to the engine engine is increased by a predetermined slip rate offset...	10/30/2007
7259471	Drive line for fluid flow power engine with speed guidance, power impact reduction and short-term energy storage Control procedure for a flow machine, wherein the flow machine comprises a turbine, which picks up power from a wind or water current, and a driveline, which transfers power from the turbine to an electric generator connected to an electricity grid of constant grid ...	08/21/2007
7238142	Lock-up capacity control apparatus and method for torque converter In lock-up capacity control apparatus and method for a torque converter, the torque converter is caused to have a converter state in which a relative revolution between input and output elements of the torque converter is free of limitation in a case where a lock-up...	07/03/2007
7204783	Toroidal type continuously variable transmission When, with engine kept stopped, driven road wheels are turned, the toroidal type continuously variable transmission is suppressed from shifting toward a higher speed side. That is, when, with the engine kept stopped, the road wheels are turned in a reverse direction...	04/17/2007
7192380	Toroidal continuously variable transmission In a toroidal continuously variable transmission, a primary oil pump is driven by an engine, whereas a secondary oil pump is driven in response to rotation of a road wheel. A hydraulic servo mechanism is connected to a trunnion to create an offset of the trunnion fr...	03/20/2007
7128686	Method and apparatus for synchronized PTO control in a motor vehicle powertrain One or more friction devices of a transmission coupled to an engine through a fluid coupling are used during engine neutral idle operation to control the state of the fluid coupling for synchronous engagement and disengagement of a PTO input gear with a transmission...	10/31/2006
7008346	Seven-speed transmission A multi-speed transmission includes an input shaft, an output shaft, and a planetary gear arrangement having three planetary gear sets. The input shaft and output shaft are continuously connected with members of the planetary gear sets. Six torque-transmitting mecha...	03/07/2006
6984190	Power train for a mobile vehicle A power train for construction machinery, preferably a wheel loader, has an internal combustion engine (1) which, via a primary clutch (2), drives a hydrodynamic torque converter (3) the output of which drives a reduction gear (4). The pr...	01/10/2006
6898547	Rotor assembly system and method A system is disclosed for use in assembling a plurality of rotatable elements in the assembly of a turbine engine. The system includes an initialization unit, a measurement unit, and a processing unit. The initialization unit is for entering initialization data into...	05/24/2005
6463740	Compressor starting torque converter The subject invention involves a compressor starting torque converter (CSTC) to enable starting up single-shaft gas turbine driven compressor sets, such as in a liquified natural gas (LNG) plant. The system includes a single-shaft gas turbine with an outp...	10/15/2002
6278926	Adaptive electronic transmission control system and strategy for nonsynchronous automatic transmission An adaptive electronic transmission control for an automatic transmission having multiple-ratio gearing establishing plural torque flow paths between a torque input member and a driven member, the relative motion of the elements of the gearing being contr...	08/21/2001
5586029	Shift control system for a multiple ratio automatic transmission with manual ratio ranges A multiple ratio transmission for an automotive vehicle comprising a main gear unit with at least three ratios and an overdrive gear unit with a direct drive ratio and an overdrive ratio, and a control valve system that will permit upshifting and downshif...	12/17/1996
5274553	Torque converter slip rate based skip power downshift control strategy A power downshift control method/system strategy (FIG. 6), based upon sensed torque converter slip (TC slip) is provided for an automated mechanical transmission system (12) including an engine (16), a mechanical transmission (14) and a torque converter (...	12/28/1993
4617835	Transmission The present invention provides a high efficiency automatic transmission for a vehicle in which the input speed to output speed gearing ratio is infinitely variable. The transmission of the present invention comprises a torque converter assembly having a f...	10/21/1986
4598612	Pump control arrangement for automatic automotive transmission or the like In order to prevent excessive pump output drain off and ensure that the hydraulic pressure supplied to a control chamber of a variable capacity pump of a hydraulically controlled automatic automotive transmission control system, is maintained at an approp...	07/08/1986
4509391	Hydraulic pressure regulating system for a vehicle automatic transmission In a hydraulic control system for an automatic transmission for vehicles having a pump being driven by the engine of the vehicle for generating a pressure of pressurized fluid in the hydraulic control system, and a pressure regulator valve for regulating ...	04/09/1985
4385531	Hydraulic circuit system for automatic transmission A hydraulic circuit system in the automatic transmission has a hydraulic line or passage through which a hydraulic fluid delivered from a hydraulic power source or a hydraulic fluid output provided by a regulator valve is directly supplied to a torque con...	05/31/1983

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Class 477/53 - Impeller-turbine-type