"Transmission of documents via telephone wires is possible in principle, but the apparatus required is so expensive that it will never become a practical proposition."
Dennis Gabor, British physicist
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| Number | Title | Issue Date |
| 8185279 | Control system for traction transmission and hydraulic motor used therein A control system (100) for traction transmission has at least two multi capacity motors (M1, M2), which are adapted to rotate a vehicle's wheels (J1, J2) and which multi capacity motor (M1) is arranged to... | 05/22/2012 |
| 8180536 | Automatic transmission control apparatus and method During control of a shift of a first friction engagement element from an engaged state into a disengaged state and a shift of a second friction engagement element from a disengaged state into an engaged state for a gear shift to a first target gear from a second tar... | 05/15/2012 |
| 8180535 | Method for controlling gear change during shifting rule or variogram switching The inventive method for controlling the gear change of an automatic gearbox provided with distinct shifting rules or variograms used according to a vehicle operating conditions consists in detecting and carrying out gear shifting requests sequential to the shifting... | 05/15/2012 |
| 8175777 | Control apparatus, control method, and computer-readable storage medium for continuously variable transmission A control apparatus for a continuously variable transmission includes a clamping force increase portion. The continuously variable transmission includes a pair of a primary pulley and a secondary pulley on which a transmission belt is wound. A shift of the continuou... | 05/08/2012 |
| 8170758 | System and method for changing values stored in memory that relate to the operation of an automatic transmission An automatic transmission may be coupled to an internal combustion engine. A shift selector may be coupled to the transmission and may have a plurality of user selectable inputs for controlling operation of the transmission that are electrically connected to a contr... | 05/01/2012 |
| 8170757 | Selection device for shifting a vehicle transmission A selection device for shifting a vehicle transmission, with a operating element (4), which can be rotated into different shift positions (6, 7, 8, 9) about an axis of rotation (5) and with a shaft (21), which is connected to the operatin... | 05/01/2012 |
| 8165762 | Method of operating a transmission system valve configuration A method of operating a valve system of a transmission comprising part of the vehicle drive train through a valve unit and said valve unit's electro-magnetic activator configuration. In a transmission's hydraulic system and is part of the vehicle drive train, its hy... | 04/24/2012 |
| 8160788 | Improper start preventing apparatus for vehicle If a control portion determines that the direction of travel of the vehicle with a range selected by the driver is different from the direction intended by the driver to move the vehicle, a vehicle inhibiting mechanism is activated to inhibit the movement of the veh... | 04/17/2012 |
| 8160787 | Control system for a motor vehicle provided with a semiautomatic gearbox with discrete ratios The control system comprises detectors or estimators capable of supplying electrical signals or data indicative of the values of predetermined state variables including the angular velocity of the crankshaft of the engine, the diff... | 04/17/2012 |
| 8150585 | Control system for automatic transmission A control system including a friction engagement element, a solenoid valve, an engagement pressure control valve and an electronic control unit, wherein a learning correction amount is divided into an initial learning amount that has no dependence upon an engagement... | 04/03/2012 |
| 8150586 | Method for synchronized transmission gear ratio engagement A method is provided for changing a gear ratio in a transmission of a motor vehicle. Engagement of a first gear-train component with a second gear-train component is initiated at a predetermined rate. Rotational speeds of the first and the second gear-train componen... | 04/03/2012 |
| 8145397 | Optimal selection of blended braking capacity for a hybrid electric vehicle A hybrid powertrain system includes a transmission operative to transfer power between an input member and a torque machine and an output member coupled to a driveline coupled to a wheel including an actuable friction brake. The torque machine is operative to react ... | 03/27/2012 |
| 8145398 | Method for controlling gear ratio changes in an automatic transmission A method of controlling an automatic transmission of a machine includes a step of identifying an upcoming gear ratio change from a current gear ratio to a proposed gear ratio. An estimated power output value, based on the proposed gear ratio and a current engine spe... | 03/27/2012 |
| 8140229 | Transmission control device of motorcycle A transmission control device of a motorcycle can detect a predetermined traveling state based on the difference in rotational speed between a front wheel and a rear wheel, and can execute a shift-change control suitable for the traveling state. A transmission contr... | 03/20/2012 |
| 8135519 | Method and apparatus to determine a preferred output torque for operating a hybrid transmission in a fixed gear operating range state A hybrid transmission includes a torque machine and an energy storage device connected thereto. The hybrid transmission is operative to transfer power between an input member and an output member and the torque machines in a fixed gear operating range state. A metho... | 03/13/2012 |
| 8135520 | Gear clash logic A system and method for selectively engaging and disengaging auxiliary equipment to avoid gear clash in a vehicle is disclosed. The system includes a transmission, a transfer case, and a transmission controller. The transmission has a plurality of gears for establis... | 03/13/2012 |
| 8131436 | Speed change control system of automatic transmission When it is judged that a vehicle speed detected by a vehicle speed sensor is equal to or lower than a predetermined very low value, that is, for example, 5 km/h, the hydraulic pressure applied to an engaging-side frictional element is sharply increased, sharply redu... | 03/06/2012 |
| 8126622 | Control device for vehicular power transmitting apparatus A control device is disclosed which can obtain increased fuel economy performance depending on a kind of fuel in a vehicle having an internal combustion engine and an electric motor when the kind of fuel supplied to the internal combustion engine is altered. A deter... | 02/28/2012 |
| 8126623 | Shifting device for a manual transmission A shifting device is provided for the gear selection in a manual transmission that includes, but is not limited to a shift/selector lever that can be moved in a shifting degree of freedom and a selection degree of freedom, a measuring sensor for measuring a current ... | 02/28/2012 |
| 8121763 | Automatic productivity management control with standard power shift transmission A system and method for managing an engine-powered vehicle is provided. When the vehicle is placed in an automatic speed control mode, an electronic controller receives data from the vehicle's engine, transmission, a final drive, and a device which evaluates at leas... | 02/21/2012 |
| 8121764 | Shift control device for automatic transmission and control method thereof In a shift control device for an automatic transmission according to this invention, when the engine load increases such that a kickdown is required, and a gear position calculated in accordance with the shift map from an operating condition defined by a look-ahead ... | 02/21/2012 |
| 8121762 | Method for automatically engaging a parking lock of an automatic or automated transmission of a motor vehicle A method of automatically engaging a parking lock of an automatic or automated transmission of a motor vehicle, which can be engaged by way of a selector device depending on a drive position selected by the driver of the motor vehicle and depending on other operatin... | 02/21/2012 |
| 8116952 | Control system for automatic transmission A control system for an automatic transmission is provided with a manual shift mode capable of performing a shift command made by manual operation. While in the manual shift mode and during the operation of a downshift command generated by a shift lever, a manual sh... | 02/14/2012 |
| 8116951 | Transmission with substantially identical gear sets for torque load sharing A transmission has an input member and an output member, first and second intermediate shafts having substantially identical gear sets with gears concentric with and selectively connectable for rotation with the first and second intermediate shafts, respectively. Ou... | 02/14/2012 |
| 8112203 | System for assisting fuel-efficient driving A system for assisting fuel-efficient driving includes a storage unit for storing a shift pattern map, a collection unit for collecting the driving state information of a vehicle, a driving state calculation unit for calculating a current driving state and a target ... | 02/07/2012 |
| 8112204 | Automatic transmission controller and automatic transmission control method An automatic transmission controller calculates a predicted vehicle speed with reference to a measured vehicle state variable, and calculates a target transmission ratio with reference to the predicted vehicle speed, when a sensor input signal is normal which carrie... | 02/07/2012 |
| 8108111 | Hydrostatic regenerative drive system A variable transmission comprises a first fluid working machine (1) for connection to a prime mover (2), a second fluid working machine (5) for connection to a mechanical load (6) and a fluid system linking the first and second working ma... | 01/31/2012 |
| 8095284 | Automatic transmission and control method thereof An automatic transmission control unit determines whether or not a constantly open failure, in which a switch valve cannot switch a pressure regulating valve and a second hydraulic chamber to a non-communicative state, has occurred on the basis of a parameter (an in... | 01/10/2012 |
| 8095283 | Transmission control apparatus A transmission control apparatus detects a drop in power transmission performance of a clutch actuator, and prevents a failure thereof. When power transmission performance drop detecting means detects a drop in power transmission performance of a first clutch even i... | 01/10/2012 |
| 8095282 | Method and apparatus for soft costing input speed and output speed in mode and fixed gear as function of system temperatures for cold and hot operation for a hybrid powertrain system Methods and systems for manipulating inputs relating to transmission shifting events in a hybrid-engine powered vehicle equipped with an electro-mechanical hybrid transmission include sets of preferability factors inputted from engine sensors are combined in a micro... | 01/10/2012 |
| 8090509 | Transmission, vehicle having the transmission, and control device and control method for the transmission A transmission includes a gear ratio change mechanism, a driving circuit and an electronic control unit (ECU). The gear ratio change mechanism has a motor for continuously varying the gear ratio. The driving circuit applies a pulse voltage to the motor. The ECU outp... | 01/03/2012 |
| 8078370 | Hydraulic or pneumatic control of an automated shift transmission A hydraulic or pneumatic control device for an automated shift transmission including actuating devices with actuating cylinders (15, 16) having pressure spaces (19a, 19b; 20a, 20b). The pressure spaces ... | 12/13/2011 |
| 8078369 | Method and device for controlling a standstill circuit of an automatic transmission The invention relates to a method and a device for controlling a standstill circuit of an automatic transmission of the vehicle, comprising a decision unit for selection of the target gear, a low-speed monitoring unit and a standstill circuit, which, when the vehicl... | 12/13/2011 |
| 8068963 | Control device for automatic transmission A control device for an automatic transmission capable of operating in an automatic shift mode in which a gear ratio is automatically selected based on driving conditions of a vehicle, and also capable of operating in a manual shift mode in which the gear ratio is c... | 11/29/2011 |
| 8065063 | Method and apparatus to shift-by-speech for semi-manual transmissions with intelligent shifting algorithm A shift-by-speech transmission system with intelligent shifting algorithm allows a driver or a motorcyclist to choose a desired gear by voice command. An intuitive and engaging shift-by-speech technology disclosed in the present invention, called “VoiceShift”, a... | 11/22/2011 |
| 8065064 | Shift control device for automatic transmission and control method thereof An automatic transmission calculates a current thermal load state of the frictional element, predicts (S24, 531), prior to the start of the shift, a heat generation amount of the frictional element during the shift, predicts (S25, S32) a thermal... | 11/22/2011 |
| 8055413 | Method for compensating hydraulic pressure of automatic transmission Faster shifting operation and reduced shift shock in response to a braking operation during a lift-foot-up shifting may be achieved when an automatic transmission is controlled by a method for compensating a hydraulic pressure that includes: determining whether a li... | 11/08/2011 |
| 8050828 | Transmission oil measurement system and method A system includes a pressure sensor that measures a transmission fluid pressure at a first fluid cavity of a transmission. A transmission control module receives the transmission fluid pressure, determines a transmission fluid temperature in the first fluid cavity b... | 11/01/2011 |
| 8050829 | Electronically controlled differential locker An electronic locking mechanism for a vehicle differential assembly includes a lock element movable in response to an actuation signal between an open position and a locked position. The lock element generally forces side gears of the differential assembly to turn g... | 11/01/2011 |
| 8050827 | Vehicle transmission system A vehicle has an engine, an accelerator for controlling the rotary speed of the engine, an axle and a multi-speed transmission for transmitting power from the engine to the axle. The multi-speed transmission includes an odd-numbered speed drive train for an odd-numb... | 11/01/2011 |