Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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| Number | Title | Issue Date |
| 8142329 | Controlling torque in a flywheel powertrain A method for controlling a powertrain for an automotive vehicle includes determining a desired flywheel torque, determining, with reference to the desired flywheel torque, a desired torque capacity torque of a clutch through which torque is transmitted between the f... | 03/27/2012 |
| 7976429 | Continuously variable transmission A continuously variable transmission for a motorcycle that provides appropriate engagement of a centrifugal clutch when a clutch shoe is worn. A control unit controls a change gear ratio to a TOP side to engage the centrifugal clutch when the centrifugal clutch is d... | 07/12/2011 |
| 7972240 | Work machine with power limit control using an infinitely variable transmission A work machine includes an internal combustion (IC) engine, and an infinitely variable transmission (IVT) coupled with the IC engine. The IVT includes an adjustable module and a mechanical module, with an adjustable input/output (I/O) ratio. A clutch is coupled with... | 07/05/2011 |
| 7833126 | Arrangement for power take-off on a two-shaft engine With a two-shaft engine, the accessory drive gearbox (5) for the operation of a generator and other auxiliaries (6) is connected to the high-pressure shaft (1) via a high-pressure shaft gearbox (3), which is coupled to a low-pressure shaf... | 11/16/2010 |
| 7426434 | Engine controller with an atmospheric pressure correction function An engine controller of the present invention is comprised of: a determining section for determining a state where an engine is not driven; a braking torque obtaining section for obtaining a braking toque acting on the vehicle; a vehicle speed sensing section for se... | 09/16/2008 |
| 7370516 | Method for estimating transmission input torque A method for estimating transmission input torque is provided. The method includes identifying a plurality of measurable characteristics that influence transmission input torque. Thereafter, transmission input torque values are measured on a sample powertrain operat... | 05/13/2008 |
| 7356400 | Clutch control apparatus and method A clutch control apparatus for a power transmission system including an input rotating member and an output rotating member. The clutch control apparatus includes a friction clutch, and a control unit. The control unit sets a first desired clutch torque setting in a... | 04/08/2008 |
| 7347802 | Clutch control apparatus for hybrid vehicle A clutch control apparatus for a hybrid vehicle (1) having an engine (2) and a motor (3) as power sources, and an output shaft (13a). The clutch control apparatus includes a clutch device (12) and a clutch control device ( | 03/25/2008 |
| 7349785 | Method of controlling clutch slip during gear shifts of an automatic transmission A method is provided for controlling engagement of a clutch which carries torque before, during and after a shifting event in a transmission which is connected to a throttle-controlled engine. The method includes providing a feed forward input command which increase... | 03/25/2008 |
| 7317978 | Driving force control apparatus for vehicle A driving force control apparatus for a vehicle includes a first sensor that detects an output command supplied to a power source, a second sensor that detects an operating condition amount of a vehicle and a controller. The controller calculates a basic command val... | 01/08/2008 |
| 7316283 | Automatic transmission controller for hybrid vehicle An automatic transmission controller for a hybrid vehicle of the present invention is used for the hybrid vehicle being a four-wheel drive vehicle and including an engine and a generator motor on a front wheel side of the hybrid vehicle and a traction motor on a rea... | 01/08/2008 |
| 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 |
| 7273440 | Continuously variable transmission apparatus A continuously variable transmission apparatus includes a toroidal-type continuously variable transmission, a planetary gear type transmission and a clutch apparatus that connects the toroidal-type continuously variable transmission and the planetary gear type trans... | 09/25/2007 |
| 7267632 | Control of belt-drive continuously variable transmission A controller (50) controls the supply of oil pressure to a primary pulley (41) and a secondary pulley (42) of a belt-drive continuously variable transmission (1) in accordance with the depression amount of an accelerator pedal (81)... | 09/11/2007 |
| 7255663 | Starting clutch control apparatus There is provided a starting clutch control apparatus which is capable of controlling transmission torque of a starting clutch according to changes in accelerator operated amount without preparing a plurality of data maps of torque coefficients in advance. A clutch ... | 08/14/2007 |
| 7255664 | Starting clutch control device A starting clutch control device includes a starting clutch disposed between an engine and a transmission installed to a vehicle. A torque coefficient setting section sets a torque coefficient based on a clutch speed ratio of the starting clutch and a throttle openi... | 08/14/2007 |
| 7247125 | Torque converter controller stuck-on test in a multiplex device A device and method for fluid delivery in a continuously variable transmission that includes a valve assembly, configured to distribute a fluid, having a first position and a second position. A forward clutch, a reverse clutch, and a torque converter are connected t... | 07/24/2007 |
| 7238135 | Three-mode continuously variable transmission with a direct low mode and two split path high modes A powertrain includes a continuously variable transmission having a starting mechanism, a continuously variable unit (CVU), and a pair of planetary gear arrangements. The continuously variable transmission also includes a plurality of torque transmitting mechanisms ... | 07/03/2007 |
| 7235035 | Release clutch for a vehicle A vehicle includes an engine that powers a wheel through a drive train. The drive train includes a continuously variable transmission (CVT) and toothed gearing disposed between the CVT and the wheel. A release clutch is also disposed between the CVT and the wheel. A... | 06/26/2007 |
| 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 |
| 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 |
| 7197385 | Method and apparatus for adjusting a contact force in a motor vehicle drive train A method and apparatus for regulating the contact force between two frictionally-engaged torque-transmitting components of a motor vehicle drive system. A contact force between an endless torque-transmitting device and a pair of conical disks of a continuously varia... | 03/27/2007 |
| 7192371 | System and method of controlling V-belt type continuously variable transmission A system for controlling a V-belt type CVT is constructed to change a first position of a step motor to a second position of the step motor corresponding to a second target shift ratio if it is determined that the primary-pulley pressure fails to reach a predetermin... | 03/20/2007 |
| 7189185 | Method for operating a drive train in a motor vehicle In a method for operating a drive train for a motor vehicle including a transmission with a hydraulic torque converter having a converter lockup clutch which can be activated by a working pressure acting on a piston under engine overrun conditions when an increased ... | 03/13/2007 |
| 7188717 | Control apparatus for power train including continuously variable transmission A control apparatus for a power train including a continuously variable transmission and a clutch arranged in series with the continuously variable transmission is provided in which an engaging pressure of the clutch is first reduced until a slip occurs, and is then... | 03/13/2007 |
| 7174246 | Method and system for regulating the torque-transmission capacity of a frictionally engaged, torque transmitting assembly A method and system for regulating the torque transmitting capacity of a frictionally-engaged torque-transmitting assembly located in the drive train of a motor vehicle. The torque-transmitting assembly has an input and an output, the values of which, such as input ... | 02/06/2007 |
| 7160226 | Continuously variable transmission and method of operation thereof A continuously variable transmission is disclosed comprising a transmission input, a transmission output, and a continuously variable ratio unit (“variator”) arranged to be coupled between the transmission input (205) and output (240) by means of a... | 01/09/2007 |
| 7128688 | Hydraulic control for automatic transmission A hydraulic control system for an automatic transmission includes a lubrication passage for feeding lubricating oil to a wet clutch and lubrication points of the transmission, first and second passages with a large-diameter orifice and a small-diameter orifice, resp... | 10/31/2006 |
| 7117881 | Control system The invention relates to a control system, especially a hydraulic control system for a transmission, including a valve assembly, especially a directional valve assembly, designed for controlling a cooling system for a clutch and for ensuring a minimum level of press... | 10/10/2006 |
| 7112154 | System and method for hydraulically controlling automatic transmission Hydraulic control system and method for an automatic transmission. The hydraulic control system includes a hydraulic pressure source, a flow rate control valve having a spool with an orifice and a drain hole, stroke position determining means, and pressure regulator... | 09/26/2006 |
| 7097587 | Ratio selection method for a continuously variable transmission A gear ratio selection method for a transmission in a motor vehicle includes detecting a power request, detecting a vehicle speed of the motor vehicle, and providing an engine speed of the motor vehicle. A first desired engine speed is calculated from a first variog... | 08/29/2006 |
| 7077783 | Method and device for operating a clutch A method and device for operating a clutch between an internal combustion engine and at least one driven wheel of a vehicle, a torque being transmitted between the internal combustion engine and the driven wheel by pressing the clutch together via an application for... | 07/18/2006 |
| 7074160 | Controller for driving system of vehicle A control device for a drive line of a vehicle, in which a drive line from a power source to drive wheel includes a wheel control for controlling the speed of the wheels, and a connection mechanism for increasing/decreasing a torque transmission capacity between the... | 07/11/2006 |
| 7074148 | Hydraulic controller of power transmission device A hydraulic controller of a power transmission device is equipped with a transmission for changing a rotation speed of motor power input from a motor and outputting the motor power; a forward/backward change-over mechanism provided between an input shaft, where the ... | 07/11/2006 |
| 7066860 | Driving system of motor vehicle A driving system of a motor vehicle includes a driving power source that generates power, and a belt-and-pulley type continuously variable transmission that transmits the power received from the driving power source to drive wheels while changing a first speed of ro... | 06/27/2006 |
| 7056262 | Method and apparatus for the control of characteristic operating values of a power train A first characteristic operating value, for example the amount of transmissible clutch torque, in a motor vehicle power train with an engine is controlled by using at least a second characteristic value. The second characteristic value is subject to adaptation, if n... | 06/06/2006 |
| 7058498 | Automatic clutch control device The automatic clutch control device controls, regardless of the gear-shift operation, the clutch to be brought into a half-clutch state or to a perfect disconnecting state according to a running state of a vehicle from the following five viewpoints deceleration slip... | 06/06/2006 |
| 7044873 | Belt-type continuously variable transmission A continuously variable transmission includes: (a) a drive pulley and a driven pulley in which the pulley width between a fixed disk and a movable disk may be varied in accordance with oil pressure, (b) a V-belt, which is wound around the drive pulley and driven pul... | 05/16/2006 |
| 7044888 | Method of controlling engagement of a starting clutch in an automatic transmission during vehicle launch A control strategy is provided for controlling engagement of a clutch during vehicle launch. A feed-back input command and a feed-forward input command are utilized and summed to determine a clutch control command. The feed back input command uses a reference slip p... | 05/16/2006 |
| 7044889 | Control system for a start-up element of an automated or automatic transmission at limp home mode A control system, method for control, and control software for operating a startup shift element of an automated motor vehicle transmission or automatic transmission capable of electro-hydraulic or electro-pneumatic actuation with an electronic transmission control ... | 05/16/2006 |
