Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 8177045 | Hydraulic system with a regulating circuit for controlling a motor vehicle transmission with automated actuation of clutches A hydraulic system for controlling a motor vehicle transmission having automated actuation of clutches. The hydraulic system includes a first valve connected downstream from a hydraulic energy source for producing a system pressure to control and/or regulate a clutc... | 05/15/2012 |
| 8167105 | Pressure medium-actuated control device of an automated step-by-step variable speed transmission A pressure medium-actuated control device of an automated step-by-step variable speed transmission. The device having a control valve for controlling an actively engaged disconnectable type clutch which is disposed along a power flow path between a motor and a trans... | 05/01/2012 |
| 8162113 | Clutch control system for vehicle A clutch control system for a vehicle includes an actuator which is configured to control a hydraulic pressure. A timer is configured to measure a time period from a timing at which a hydraulic pressure supply source starts supplying hydraulic oil to a hydraulic clu... | 04/24/2012 |
| 8146723 | Hydraulic control apparatus for marine reversing gear assembly for watercraft A hydraulic control apparatus for marine reversing gear assembly for watercraft includes a pressure-reducing valve for adjusting pressure of working oil supplied from a supply pump, and supplying working oil to forward and reverse clutches; a proportional electromag... | 04/03/2012 |
| 8104595 | Hydraulic control device of a clutch of a motor vehicle A hydraulic control unit is set up to hydraulically actuate a starting clutch of a motor vehicle and gear selectors of a transmission of the motor vehicle by use of hydraulic valves which are integrated in the hydraulic control unit and which have in each case at le... | 01/31/2012 |
| 8020684 | Shift apparatus for inboard-outboard drive A shift apparatus of an inboard-outboard drive in which shift operation can be carried out by electrical means without using known cables such as wires is provided. Solenoid valves 35 and 36 which carry out shifting operation in an oil-hydraulic... | 09/20/2011 |
| 8011489 | Straddle-type vehicle An automatic change gear control device for a motorcycle having a manually operated clutch operation member achieves both easy clutch operation and secure freedom of drive. A clutch is connected and disconnected to change gears in a transmission capable of freely ch... | 09/06/2011 |
| 7987956 | Automatic transmission control device and method of controlling automatic transmission A transmission ECU calculates a differential rotation, which is the rotational speed difference between a friction plate and a separator plate, when it is determined that a second brake is not engaged. If it is determined that the differential rotation is equal to o... | 08/02/2011 |
| 7942252 | Gear shift module for an automatic transmission of a motor vehicle In a gear shift module for an automatic transmission of a motor vehicle including a series of gear shift elements for example in the form of gear shift forks, which are operated for the shifting of gears, a gear shift module is provided which has a module baseplate ... | 05/17/2011 |
| 7849986 | Hydraulic pressure control apparatus The hydraulic pressure control apparatus includes an upstream control valve, a downstream control valve, a hydraulic pressure sensor, and a controller. The upstream control valve is provided between a hydraulic pressure source and a hydraulic pressure device. The do... | 12/14/2010 |
| 7841455 | Hydraulic control system for automatic transmission In clutch-to-clutch upshifting, the occurrence of inertia shock is suppressed while racing of the engine is prevented. Corresponding to a first sweep control in which an engaging-side pressure sweeps up toward a target hydraulic pressure PTA, a releasing-... | 11/30/2010 |
| 7766139 | Method of operating a DCT hydraulic power control system as well as DCT hydraulic power control system A DCT hydraulic power control system has a pump, a high pressure section for providing oil to actuators of the DCT, a low pressure section for providing oil to a lubrication and cooling system of the DCT, and a regulator for directing excess oil from the high pressu... | 08/03/2010 |
| 7487864 | Hydraulic circuit for a dual clutch transmission A hydraulic circuit for a dual clutch transmission for motor vehicles comprises a first and a second clutch that can be hydraulically actuated and a first and a second pressure control valve for regulating the clutch pressure of the first and second clutches. In thi... | 02/10/2009 |
| 7445100 | Low power modulating clutch control system A power transmission device includes a rotary input member adapted to receive drive torque from a source of torque, a rotary output member adapted to provide drive torque to an output device and a torque transfer mechanism operable to transferring drive torque from ... | 11/04/2008 |
| 7430936 | Method for the control of operational sequencing in an automatic transmission of auxiliary construction A method for controlling operational sequencing of gears in an automatic transmission (102) which has been built in an auxiliary mode. In the case of such a shifting transmission it is possible that during the engagement of its transmission gear stage, impact... | 10/07/2008 |
| 7410438 | Switching-valve arrangement for a shifting system of an automatic transmission The invention relates to a switching-valve arrangement for a shifting system of an automatic transmission having a first actuator for engaging and releasing gears, at least a second actuator for engaging and releasing gears, a first activatable switching valve, a se... | 08/12/2008 |
| 7401689 | Hydraulic system providing pressure and volume flows in a double-clutch transmission A hydraulic system for providing pressure and volume flows in a double-clutch transmission. A first clutch and a second clutch are preceded by at least one changeover valve which, in a first state, guides lubricating flow to the first clutch and cooling flow to the ... | 07/22/2008 |
| 7395908 | Hydraulic system for providing pressures and volumetric flows in a dual clutch transmission The invention relates to a hydraulic system (1) for providing pressures and volumetric flows in a dual clutch transmission, in particular for providing a first volumetric flow for cooling and lubricating a first clutch (2) and for providing a second vo... | 07/08/2008 |
| 7363834 | Shift drum having an insertion-groove flank movable axially with respect to a shift drum axis and shifting method Shift drum (10; 10′) for a multi-step transmission of a motor vehicle, with at least one circumferential track (14, 16), in particular circumferential groove (14, 16), into which at least one axially displaceable track follower (S, T) can enga... | 04/29/2008 |
| 7356397 | Crowd control system for a loader A work vehicle comprising a motor, a drive unit for driving a ground engaging portion, a torque converter for variably transferring power from the motor to the ground engaging portion, a lubrication circuit for providing lubrication fluid to the torque converter, an... | 04/08/2008 |
| 7351175 | Drive train for a motor vehicle A drive train for a motor vehicle includes a coupling device between a drive unit and a transmission for torque or moment transfer between the drive unit and the transmission. The coupling device has at least one coupling arrangement that can be activated by a press... | 04/01/2008 |
| 7334492 | Shifting unit for an automatic transmission A shifting unit (1) for an automatic transmission, especially controlled by pressurized medium for an automobile, with multiple valves which are connected to each other through a pressure supply line (30) and a pressure reduction line (32). The ... | 02/26/2008 |
| 7335133 | Control apparatus method for automatic transmission A control apparatus for an automatic transmission includes an engine; a torque converter connected with the engine; an oil pump driven by the engine; a starting clutch adapted to be engaged by an engagement pressure produced by the oil pump to transmit propelling po... | 02/26/2008 |
| 7326149 | Converterless transmission shift control system A converterless, multiple-ratio transmission and shift control method wherein smoothness of power-on upshifts and downshifts and power-off upshifts and downshifts is achieved by closed loop control of slip speed and friction element actuating pressure for an oncomin... | 02/05/2008 |
| 7313473 | Control device and control method for a vehicle At the time of the change-speed, by correcting the torque reducing portion of an output shaft during the change-speed, the revolution number of an input shaft is controlled on the basis of the corrected torque reduction correcting value. Also, the torque of said inp... | 12/25/2007 |
| 7294091 | Transmission A transmission comprises a first transmission mechanism and a second transmission mechanism. When a clutch is in an engaged state, the first transmission mechanism transmits a driving force from the engine to the axle shaft. When a clutch is in a disengaged state, t... | 11/13/2007 |
| 7264573 | Automatic transmission control apparatus having diagnostic function An automatic transmission control apparatus controls a gear position by engaging and disengaging multiple frictional elements. A hydraulic pressure detector detects hydraulic pressure applied to the frictional elements. A failure determiner determines a failure, i.e... | 09/04/2007 |
| 7255214 | Damper lock-out clutch and motor/generator cooling multiplexed control system and method for an electrically variable hybrid transmissions The present invention provides a multiplexed control system, employing a single solenoid valve, to selectively control the damper lock-out clutch and motor/generator cooling of an electronically variable hybrid transmission. The present invention also contemplates a... | 08/14/2007 |
| 7255212 | Hydraulic control circuit for automatic transmission of vehicle A hydraulic control circuit for an automatic transmission of a vehicle, the transmission including hydraulically operated coupling devices at least one of which is selectively operated to establish a corresponding one of speed steps, the hydraulic control circuit in... | 08/14/2007 |
| 7246535 | Method for the recognition of the synchronization position and the end of the synchronization operation of an automated shiftable transmission A method for recognition of the synchronization position and the end of the synchronization operation in an automated shiftable transmission with an electromotive shift actuator is disclosed, which is characterized in that the rotational speed of the shift actuator ... | 07/24/2007 |
| 7247127 | Method for increasing the spontaneity of an automatic transmission A method for shifting gears of a transmission of a vehicle, which, during a shift, a first shift element opens and a second shift element closes. To increase the spontaneity and reduce the shifting frequency a downshift from a first gear to a second gear is interrup... | 07/24/2007 |
| 7244215 | Transmission control system and method A vehicle transmission transmits torque from an engine to a drive axle and includes a power shift transmission and a reverser module. A control system and method automatically partially disengages the reverser module during a shift of the power shift transmission wi... | 07/17/2007 |
| 7237450 | Vehicular automatic power transmission operating device A vehicular automatic power transmission operating device includes an operating lever, a lever case, a torque sensor, a mounting member and a power assist unit. The operating lever creates operational force to shift into a position of an automatic power transmission... | 07/03/2007 |
| 7231845 | Cone selector and associated transmission assembly A multi cone selector in a transmission employs sandwiched cone friction surfaces 19A, 20A and 21A and these are shown in free or unengaged state while the corresponding friction surfaces as numerals 19, 20 and 21 are shown as enga... | 06/19/2007 |
| 7225907 | Hydraulic pressure control system A hydraulic pressure control system for an automatic transmission is comprised of an engagement element engaged when the vehicle runs and a first engagement control actuator controlling the engagement element by supplying the controlled hydraulic pressure to the eng... | 06/05/2007 |
| 7222551 | Automatic transmission A mesh-type automatic transmission includes a power input shaft for introducing power of an engine, a plurality of transmission gears, a plurality of cogged clutches, a power output shaft for outputting driving force, a counter shaft, and a plurality of counter gear... | 05/29/2007 |
| 7216560 | Gearshift device A gear shifting system for idler wheels (3) comprising sliding sleeves (2), which are connected torsion-resistant with a main shaft (1) and can be connected form-locking with an idler wheel (3) to be shifted via axial displacement. Actuat... | 05/15/2007 |
| 7214165 | Method of automatically flushing debris from an electrically-operated hydraulic valve The normal control of an electrically-activated hydraulic valve armature is overridden to automatically and periodically open the armature for flushing out debris that has accumulated between the armature and a seat that the armature is designed to engage. The valve... | 05/08/2007 |
| 7188017 | Method and apparatus for controlling a transfer case clutch to improve vehicle handling In a motor vehicle driveline having an automatic transmission driveably connected to a transfer case whose output is continually connected to a first output, a clutch, selectively engaged in response to a control signal, driveably connects a second output to the fir... | 03/06/2007 |
| 7182710 | Observer-based control method for automatically shifting a manual transmission A method of controlling the shifting of an automatic manual transmission is based on observer-based timing of different phases of the shift process. The observer-based control strategy includes simultaneous management of the engine throttle and transmission actuator... | 02/27/2007 |
