Quotables
"Without question, the greatest invention in the history of mankind is beer. Oh, I grant you that the wheel was also a fine invention, but the wheel does not go nearly as well with pizza."
Dave Barry
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8187148 | Clutch system A clutch system for producing and interrupting a force flow between the engine and transmission of a motor vehicle, with a clutch, which is disengaged unless actuated, and one or more valves, which regulate the flow of pressure medium and which are electrically actu... | 05/29/2012 |
| 7699748 | Line pressure control apparatus and line pressure control method for automatic transmission An ECU executes a program that includes the steps of setting a line pressure to a line pressure (1) that is appropriate for improving fuel efficiency, if an automatic transmission is not shifting, and a deceleration slip control for a lock-up clutch is not be... | 04/20/2010 |
| 7662063 | Method for operating a drive train of a motor vehicle In a method of operating a drive train of a motor vehicle including a drive motor with a multi-unit transmission including an unsynchronized main transmission and a synchronized output drive unit, wherein, for performing a shift in the unsynchronized main transmissi... | 02/16/2010 |
| 7632210 | Device and method for controlling an automatic transmission A control device for an automatic transmission includes: a control portion that executes a neutral control to release the friction engagement element if a progressing position of the automatic transmission is selected, and a state of the vehicle satisfies a certain ... | 12/15/2009 |
| 7591756 | Clutch to clutch tie-up steady-state diagnostic A method of regulating operation of an automatic transmission includes identifying a tie-up condition of the automatic transmission, adjusting a pressure of a transmission element in response to the tie-up condition and determining whether a first gear ratio of the ... | 09/22/2009 |
| 7440833 | Clutch fill volume learning strategy for transmission control A transmission control system for a transmission including a first gear engagement element that receives a fluid and engages a first gear. The system includes an electromagnetic actuator that receives a control signal and that selectively interrupts flow of the flui... | 10/21/2008 |
| 7431678 | Hydraulic pressure control device for automatic transmission There is provided a hydraulic pressure control device for an automatic transmission having a fail-safe mechanism to cope with an operation malfunction of electromagnetic valves. A first changeover valve that can be switched between a normal state where a drain port ... | 10/07/2008 |
| 7416511 | Gear shift control system of hybrid vehicle In a hybrid-drive electric vehicle, upon request of gear shifting of a transmission (2), a clutch (3) is first disconnected and the transmission (2) is set to a neutral position. The rotating electric generator 4 is then operated in a mot... | 08/26/2008 |
| 7402123 | Automatic transmission control method and system having fail-safe function In an automatic transmission control system and method, an electronic control unit is programmed to output a command to establish another gear stage different from the gear stage at the time of occurrence of fault-induced disengagement by combination of engagements ... | 07/22/2008 |
| 7367924 | Method for controlling gear-shifting processes of a powershift gearbox and corresponding powershift gearbox A method for controlling gear-shifting processes of a powershift gearbox which can be coupled to a drive motor and has gear steps including two friction clutches and a plurality of clutches, and at least one gearbox actuator for actuating the gear steps. The method ... | 05/06/2008 |
| 7361121 | Control device and method for input clutch of work vehicle A controller serving as determination device determines whether or not a rising speed of the clutch pressure of the input clutch is less than a limit rising speed of the original pressure. A controller serving as original pressure control device adjusts the original... | 04/22/2008 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 7228216 | Automatic shift control apparatus and method for manual transmission In automatic shift control apparatus and method for a manual transmission, at least one clutch is interposed between an engine and the manual transmission and a controller performs a feedback control for an engagement force of the clutch after a gear shift for the m... | 06/05/2007 |
| 7207922 | Motor vehicle comprising a drive train having a multiple clutch drive A power train for a motor vehicle is configured with a control unit operable to increase or decrease the flow of operating fluid as a function of the instantaneous demand for the supply of the operating fluid to at least one of multiple clutch arrangements in such a... | 04/24/2007 |
| 7204786 | Hydraulic pressure characteristic value setting method for automatic transmission A hydraulic pressure characteristic value setting method for an automatic transmission comprises processes; disengaging one of friction engaging elements, transmitting turbine rotation to one side of each of the friction engaging elements, securing the other side of... | 04/17/2007 |
| 7204781 | Auxiliary transmission in transmission system A transmission apparatus includes at least an auxiliary transmission for supplementing a main transmission. The auxiliary transmission includes a damper which has a damper characteristic adapted to a low speed select state of the auxiliary transmission, and which is... | 04/17/2007 |
| 7201703 | Gear type speed change unit control device, control method, and automobile A control device for giving an existing gear type transmission a parking lock function to lock a vehicle; a control method thereof; and an automobile having an improved transmission. The gear type transmission comprises a gear type speed change mechanism (5) ... | 04/10/2007 |
| 7194349 | Closed-loop, valve-based transmission control algorithum A system for controlling pressure in a transmission comprises a transmission control unit, a valve controller that receives a desired pressure as input from the transmission control unit, a valve driver, a valve that regulates an amount of fluid in a transmission cl... | 03/20/2007 |
| 7192386 | Method for controlling and/or regulating the braking torque in a drive train, and control and regulating system The aim of the invention is to regulate the braking torque in a drive train comprising an internal combustion engine (2) and a gearbox unit (3) which can be coupled to the same, using a regulatable clutch (5). To this end, the power introduced b... | 03/20/2007 |
| 7181327 | Method and apparatus for controlling fluid supply to a clutch pack of an automatic transmission When an engine is restarted after a predetermined period of being stopped oil is supplied to a clutch pack for a 2–3 and/or 3–4 shift while a transmission is engaged in the first speed for the first time since starting. The amount of oil drained during the prede... | 02/20/2007 |
| 7139654 | Method for synchronizing a gearbox and device for damping the vibrations in gearbox, especially during synchronization A method for synchronizing a gearbox in a vehicle, whereby the engine and/or the clutch are controlled in a suitable manner during synchronization. In addition, a device for damping the vibrations in a gearbox, especially during synchronization, wherein at least one... | 11/21/2006 |
| 7134983 | Shift control method of automatic transmission for vehicles A shift control method and system for an automatic transmission. The control method includes calculating a clutch engaging pressure for each shift speed corresponding to an engine load and calculating an optimal engaging pressure for an operating clutch in each shif... | 11/14/2006 |
| 7120531 | Method of determining a default transmission input speed A default value of transmission input speed in a motor vehicle powertrain having an automatic-shift multi-gear ratio power transmission is continuously updated based on a measured value of the input speed and other reliable speed data including transmission output s... | 10/10/2006 |
| 7108632 | Control apparatus of automatic transmission An automatic transmission including plural friction engaging elements configures plural shift ranges based on combinations of each friction engaging element being in engaging or disengaging condition and a controlling unit for controlling the friction engaging eleme... | 09/19/2006 |
| 7108633 | Control apparatus for automatic transmission In a control apparatus for an automatic transmission, a return control is executed to engage a clutch that has had its engagement pressure lowered and to disengage a brake so as to resume the state of the automatic transmission from the neutral state under a neutral... | 09/19/2006 |
| 7107134 | Method of determining a default transmission output speed A default value of transmission output speed in a motor vehicle powertrain having an automatic-shift multi-gear ratio power transmission is continuously updated based on a measured value of the output speed and other reliable speed data including transmission input ... | 09/12/2006 |
| 7002454 | System and method for warning an operator of a vehicle if the vehicle is operating in a condition that may result in drive belt failure A system and method for warning an operator of a vehicle if the vehicle is operating in a condition that may result in drive belt failure. The ground speed of the vehicle, its engine speed and transmission gear placement are compared to determine if the engine speed... | 02/21/2006 |
| 6981931 | Method and apparatus for providing momentary torque reversal for a transmission having an automated shift system An automated vehicle transmission having a wet clutch and an auxiliary motor that is operatively connected to the transmission to overcome residual torque forces in the wet clutch. Residual torque forces in the wet clutch may prevent disengagement of a gear train an... | 01/03/2006 |
| 6973849 | Transmission A transmission having a first input shaft X1 connecting a first clutch D1, a second input shaft X2, inserted in the first input shaft X1, and connecting to a second clutch D2, an output shaft Xo, a counter shaft Xs, and an idle sha... | 12/13/2005 |
| 6966861 | Shift control for a two-axis automatic transmission for a vehicle A shift control method for an automatic transmission having a primary shift portion and a secondary shift portion is provided that comprises: starting, if a shift signal is output, a shift in the secondary shift portion, and then starting a shift in the primary shif... | 11/22/2005 |
| 6955628 | Change-speed system for utility vehicle A change-speed system for a utility vehicle includes a gear change-speed device operated for change speed in response to an operation of an actuator, a hydraulic clutch for selectively engaging/disengaging power transmission to the gear change-speed device, a curren... | 10/18/2005 |
| 6951526 | Motor vehicle comprising a drive train having a multiple clutch drive A power train for a motor vehicle includes a drive unit, a gearbox having first and second input shafts, and a clutch having first and second multi-disk clutch arrangements assigned to respective input shafts for transferring torque between the drive unit and the ge... | 10/04/2005 |
| 6949051 | Multistage automatic transmission A device is provided that issues a vehicle speed signal representative of a vehicle speed. A control unit is configured to carry out when, upon the transmission assuming the second speed, the vehicle speed represented by the vehicle speed signal becomes equal to or ... | 09/27/2005 |
| 6945906 | Control system for vehicle There is provided a control system for a vehicle, which is capable of increasing the service life of a transmission belt while preventing slippage thereof, and at the same time improving fuel economy and drivability. The control system for a vehicle sets a transmiss... | 09/20/2005 |
| 6939268 | Vehicle transmission system with coast controls A vehicle transmission system includes a transmission component that has an engaged condition where torque can be transferred from a vehicle engine to a drive component, and a non-engaged condition where torque is prohibited from being transferred to the drive compo... | 09/06/2005 |
