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| Number | Title | Issue Date |
| 8147363 | Conical disk pair assembly with integrated torque sensor A conical disk assembly including a shaft carrying an axially movable disk and having a fixed disk rigidly connected to the shaft. A support ring having first ramp surfaces facing the axially movable disk is carried on the shaft, and a rotatable sensing piston havin... | 04/03/2012 |
| 8109847 | Belt-driven conical-pulley transmission, method for controlling and operating it, and vehicle having such a transmission An automatic transmission in the form of a belt-driven conical-pulley transmission having conical disk sets on the power input and power output sides, and an endless torque-transmitting member interconnecting the input side and the output side disk sets for transmit... | 02/07/2012 |
| 8052555 | Conical pulley with integrated torque sensor for a belt-driven conical-pulley transmission A conical pulley assembly with integrated torque sensor. A torque-dependent force is transmitted through a transmitting component to a sensing piston whose position determines the pressure in a sensing chamber. The transmitting member is connected to the movable dis... | 11/08/2011 |
| 8038553 | Oil pressure control apparatus In one embodiment, an oil pressure control apparatus includes a belt-driven continuously variable transmission, a lockup clutch provided in a torque converter, a primary regulator valve that regulates a line oil pressure that becomes a source pressure of oil pressur... | 10/18/2011 |
| 8012051 | Oil pressure control apparatus An oil pressure control apparatus includes a belt-driven continuously variable transmission, a primary regulator valve that regulates a line oil pressure that becomes a source pressure of oil pressure of various parts, and a gear oil pressure control valve that supp... | 09/06/2011 |
| 7998006 | Speed ratio control device and method for belt type continuously variable transmission In a speed ratio control device for a belt continuously variable transmission according to this invention, when a speed ratio is subjected to feedback control on the basis of a difference between an actual speed ratio and a target speed ratio, pressure supplied to a... | 08/16/2011 |
| 7980973 | Coaxial electrical actuator for continuously variable transmissions An electrically actuated continuously variable transmission (CVT) with an electric motor coaxially mounted on one of the pulleys of the CVT and having its rotor and stator both rotating with the pulley. One of two portions of the pulley is fixed-mounted on an engine... | 07/19/2011 |
| 7905803 | Straddle-type vehicle and power unit In a V-belt continuously variable transmission (CVT) of an ATV, a movable sheave half of a primary sheave is disposed on the outer side in the vehicle width direction with respect to a fixed sheave half, and a sheave drive mechanism for controlling the respective gr... | 03/15/2011 |
| 7789779 | Continuously variable transmission A belt-driven conical-pulley transmission having a shaft on the input end and a shaft on the power output end. One of the shafts includes at least one axial bore extending in the longitudinal direction of the shaft, and a transverse bore extending from the axial bor... | 09/07/2010 |
| 7789780 | Control device and control method for continuously variable transmission During Low return control, in which a speed ratio determined by a contact radius of a V-belt (4) with a non-rotating primary pulley (2) and a non-rotating secondary pulley (3) is shifted toward lowest speed ratio while the vehicle is stationary,... | 09/07/2010 |
| 7762915 | Belt-type continuously variable transmission In a continuously variable transmission, a primary pulley includes a first fixed sheave coupled with an input rotation shaft, and a first movable sheave configured to move on the input rotation shaft in an axial direction of the primary pulley; and a secondary pulle... | 07/27/2010 |
| 7556576 | V-belt continuously variable transmission and straddle-type vehicle In a V-belt continuously variable transmission (CVT), a sheave drive mechanism includes a movable tube coupled to a movable sheave half of a primary sheave so as to be rotatable with respect thereto and axially movable together therewith, a fixed tube disposed inter... | 07/07/2009 |
| 7517295 | Conical disk pair for a belt-driven conical-pulley transmission A conical disk pair for a belt-driven conical-pulley transmission includes a fixed disk, and a movable disk that is axially movable and rotationally fixed to an input shaft. A torque sensor is associated with the movable disk on a side opposite from the axially fixe... | 04/14/2009 |
| 7402118 | Control device for controlling V-belt continuously variable transmission A control device for controlling a continuously variable transmission (5) is disclosed. The control device has an oil pressure control unit (100) which supplies an oil pressure to a primary pulley (10) and secondary pulley (11) based on a... | 07/22/2008 |
| 7387589 | Shift control apparatus of belt type continuously variable transmission A shift control apparatus of a belt type continuously variable transmission is comprised of a controller which is arranged to set a first hydraulic pressure controlled variable based on a first target transmission ratio determined based on a vehicle traveling condit... | 06/17/2008 |
| 7354368 | Method and means for shifting a hydromechanical transmission A method for achieving high quality shifts with one hydraulic unit near zero displacement when using dog clutches. This method includes selecting the proper displacement and vocation (whether the hydrostatic unit works as a pump or motor) of a low displacement hydra... | 04/08/2008 |
| 7351169 | Utility machinery and associated control arrangements A power transmission device for utility machinery is disclosed, the device including: a) a sleeve supporting a first sheave member having a first face; b) a hub received through the sleeve and moveable axially in relation thereto, the hub supporting a second sheave ... | 04/01/2008 |
| 7341533 | CVT housing having wear-resistant bore A continuously variable transmission (CVT) includes an aluminum housing member having a bore formed therein. A rotatable pulley member is supported on a bearing within the bore. The bore includes a layer of thermal spray coating for improved wear resistance so that ... | 03/11/2008 |
| 7331900 | Shift control apparatus and method for continuously variable transmission The shift control apparatus for a continuously-variable transmission includes a primary pulley; a secondary pulley connected with the primary pulley by a belt; a shift actuator that varies a speed ratio; a line pressure adjusting that adjusts a line pressure; a seco... | 02/19/2008 |
| 7320654 | Ratio control system for an automatic transmission in a vehicle A procedure for the control of ratio-change occurrences of an automatic transmission in a motor vehicle, which vehicle possesses a hydraulic system with at least two hydraulic pressure branches (3, 9) with different hydraulic pressures, wherein in a first hyd... | 01/22/2008 |
| 7311624 | Apparatus for controlling speed of a water pump For enhancement of heating performance of a vehicle, operating speed of a water pump of an engine is varied in accordance with engine operation conditions, so a speed of a coolant temperature increase can be accelerated when needed. ... | 12/25/2007 |
| 7303505 | Method for controlling rate of change of ratio in a continuously variable transmission A method for controlling a rate of change of speed ratios in a continuously variable transmission (CVT) includes sensing a vehicle speed, sensing an engine speed, and sensing a change in a position of an accelerator pedal. The method includes determining a desired e... | 12/04/2007 |
| 7291078 | Control of belt-type continuously variable transmission A gear change control system of a belt-type continuously variable transmission includes: a movable pulley piston chamber for causing a thrust force to a movable pulley varying a groove width of primary pulley and secondary pulley. The movable pulley piston chamber h... | 11/06/2007 |
| 7288043 | Belt type continuously variable transmission A belt type continuously variable transmission including a primary pulley; a secondary pulley; a belt which is looped over the primary pulley and the secondary pulley; a reduction gear unit that transmits torque, which has been output from an internal combustion eng... | 10/30/2007 |
| 7286922 | Method of and apparatus for transmitting torque in vehicular power trains The magnitude of torque which can be transmitted by a bypass clutch between the housing and the turbine of a torque converter between a prime mover, such as an engine, and an automatic transmission in the power train of a motor vehicle is selectively regulatable by ... | 10/23/2007 |
| 7264564 | Cone disc infinitely-variable gearbox A cone disc infinitely-variable gearbox including a shaft, a cone disc preferably embodied in one piece with the shaft, a cone disc connected to the shaft in a non-rotating axially-displaceable manner, a bearing ring axially fixed onto the shaft at a separation from... | 09/04/2007 |
| 7261672 | Method and system for controlling rate of change of ratio in a continuously variable transmission Systems and methods for efficiently and effectively controlling the rate of change of ratio, not simply the ratio, in a CVT. By controlling the rate of change of ratio, the acceleration or deceleration of a vehicle can be controlled in an efficient manner. Furthermo... | 08/28/2007 |
| 7258182 | Device and method for continuous regulation of the erection of a tandem axle The present invention relates to a device for continuously regulating the erection of a tandem axle of a vehicle or a self-moving working machine having a vehicle frame and at least one drive axle, wherein a tandem drive axle with a movable tandem axle housing is re... | 08/21/2007 |
| 7258636 | Method and apparatus for performing a slippage regulation in a continuously variable transmission A method and apparatus for carrying out a drive belt slippage regulation in a continuously variable transmission. A driving disk set and a driven disk set are connected together for torque transfer by an endless torque-transmitting element in which a power ratio bet... | 08/21/2007 |
| 7252608 | Automatic transmission having at least two conical disk sets An automatic transmission (1) is described, having a variator (5) that comprises at least two conical disk sets (2, 3), such that a wrap-around element (4) is guided via the conical disk sets (2, 3) for torque transmission with con... | 08/07/2007 |
| 7244202 | Step motor positioning structure for belt-type continuously variable transmission A step motor positioning structure for a belt-type continuously variable transmission having a speed-change control valve for controlling a primary pressure to be supplied to a primary pulley, a servo link, and a step motor for driving, by way of the servo link, the... | 07/17/2007 |
| 7241238 | Device for controlling contact pressure in a continuously variable transmission The invention relates to a device for controlling the contact pressure of a transmission element of a continuously variable transmission, especially the traction element of a flexible drive for motor vehicles. The inventive device is provided with at least two lever... | 07/10/2007 |
| 7243011 | Hybrid transmission launch algorithm A launch system for a hybrid vehicle includes a pump, an electronic throttle, a sensor, and a hybrid control module. The pump is driven by an internal combustion engine and provides pressurized fluid to a transmission. The electronic throttle selectively adjusts air... | 07/10/2007 |
| 7229373 | Engine torque control system In case information such as an actual gear ratio is not stored in an EEPROM 28 due to a trouble of a backup power source 29 or like when an initialization operation of a step motor 27 is performed at the time of start of a vehicle or during stop... | 06/12/2007 |
| 7229372 | Slippage prevention apparatus of belt-drive continuously variable transmission for automotive vehicle During a downshift of a belt-drive continuously variable transmission, occurring owing to vehicle deceleration, a CVT controller foretells that a slippage between a drive belt and each of primary and secondary variable-width pulleys tends to occur, when a primary pu... | 06/12/2007 |
| 7220216 | Lock-up clutch control device A lock-up clutch control device for controlling a lock-up clutch mechanism provided to a torque converter is including an estimator means for estimating a contact timing of a friction material included in the lock-up clutch mechanism during a driven state based on a... | 05/22/2007 |
| 7222005 | Abnormal oil pressure reduction determination device for vehicle transmission An abnormal oil pressure reduction determining device has an oil pressure sensor which detects a real oil pressure, a sensor which detects a vehicle running state, and a controller which sets an oil pressure command value for an oil pressure control mechanism. The c... | 05/22/2007 |
| 7211013 | Hydraulic control apparatus for V-belt type continuously variable transmission There is provided a hydraulic control apparatus for a belt CVT, which is comprised of a pulley pressure control section that controls the line pressure in accordance with the oil amount balance of an oil pump based on the engine speed and the oil temperature during ... | 05/01/2007 |
| 7212935 | Method for in-system auto zeroing of a torque sensor in an automatic transmission drive train The invention relates to torque sensors or more particularly to automotive torque sensors which measure the torque transmitted at one or more positions within an automotive power train. The invention provides a method for zeroing an automotive power train torque sen... | 05/01/2007 |
| 7207920 | V-belt continuously variable transmission for a vehicle engine A control device for controlling a V-belt CVT (Continuously Variable Transmission) which is connectible to a vehicle engine and comprises a primary variator and a secondary variator. The control device has a plurality of sensors which generate electronic measured va... | 04/24/2007 |
