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| Number | Title | Issue Date |
| 8082817 | Power transmission mechanism A power transmission mechanism having a dog clutch for freely connecting and disconnecting power transmission between a first rotor and a second rotor on a common rotational shaft. The dog clutch has a plurality of dog jaws in one of the rotors and has, in the other... | 12/27/2011 |
| 8069744 | Device for synchronization and engagement of a gear transmission of a motor vehicle A synchronization and engagement device for a gear transmission of a motor vehicle is provided with: a cylindrical hollow portion, which is fixed and coaxial with respect to a shaft of the gear transmission; a toothed driving ring, fixed to an idle or neutral gear o... | 12/06/2011 |
| 7997159 | Gear selection assembly with nested differentially rotatable tube The present invention broadly comprises a gear selector assembly including a tube with at least one engagement feature, arranged to be disposed within a drive shaft for a transmission, the transmission including at least one gear and the drive shaft including at lea... | 08/16/2011 |
| 7845250 | Transmission apparatus A transmission apparatus includes a rotatable drive shaft having a first a second end, the second end of the drive shaft defining a taper and a first portion of a dogtooth device. A rotatable driven shaft has a first and a second extremity, the driven shaft being se... | 12/07/2010 |
| 7810404 | Synchronizing mechanism and transmission having the same A synchronizing mechanism includes a synchronizer hub, a coupling sleeve, a clutch gear and a synchronizer ling. The synchronizer hub is fixedly coupled to a rotational shaft. The coupling sleeve is coupled to an outer circumference of the synchronizer hub with a sp... | 10/12/2010 |
| 7770483 | Power train for an amphibious vehicle A power train for an amphibious vehicle includes an engine and transaxle arranged North-South, driving front, rear, or all four road wheels. A power take off with optional decoupler and constant velocity joint drives marine drive means. The power take off may be tak... | 08/10/2010 |
| 7743678 | Selectable one-way rocker clutch A selectable one-way rocker clutch assembly includes an inner race disposed radially within an outer race, first and second plurality of rockers, a selector ring and an apply plate. The inner race defines a plurality of pockets configured to operatively retain the f... | 06/29/2010 |
| 7735388 | Control system and method for automatic transmission A worsening of drivability is to be kept to a minimum by making a fail-safe control taking the state in the event of failure of a shifting operation into account. When clamping a sleeve to a free rotatable gear and during the period after instructing movement of the... | 06/15/2010 |
| 7717008 | Transmission module The invention relates to a transmission module, especially a transmission module in countershaft design, having at least one input and one output which are connected with each other by way of at least one speed-torque converter device, with a reverse gear which is a... | 05/18/2010 |
| 7533592 | Sleeve spline structure of synchronizer A sleeve spline structure of a synchronizer capable of lowering contact pressure in synchronization action is provided. The sleeve spline structure of a synchronizer has a first tooth portion for synchronization in acceleration, a second tooth portion for synchroniz... | 05/19/2009 |
| 7503233 | Vehicle control apparatus and control method In a torque assisted automated MT, an assist clutch is controlled to ensure that the transmission torque increase rate is reduced when disengaging a dog clutch while engaging the assist clutch. In a twin clutch type automated MT, in stepped speed change, one of the ... | 03/17/2009 |
| 7434488 | Transmission for tractor A transmission for a tractor comprises a transmission case having an opening that opens to exterior of the transmission case and a speed change device that is housed in the transmission case. The transmission also includes a cover removably attached to the transmiss... | 10/14/2008 |
| 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 |
| 7431137 | Synchronizer for a manual transmission especially for a motor vehicle A synchronizer for a manual transmission with a first and second idler gears rotatably mounted on a transmission shaft with a synchronizer sleeve non-rotatably mounted on the transmission shaft such that it can shift axially. The sleeve can be coupled to the first o... | 10/07/2008 |
| 7428854 | Gearbox A mainshaft assembly for a gearbox and a gearbox embodying such a mainshaft assembly are disclosed. The mainshaft assembly comprises a mainshaft, and several drive gears, each carried for rotation about the mainshaft, each drive gear having a different number of tee... | 09/30/2008 |
| 7428853 | Transmission apparatus having a clutch A vehicle transmission apparatus includes an engine generating a driving force; a transmission having, therein, at least one input shaft being connectable to the engine and an output shaft connected to a drive wheel, the transmission being capable of establishing, t... | 09/30/2008 |
| 7424834 | Gear, method and device for manufacturing the same A gear, a method and a device having a transmission gear part and a hub synchro having a spline teeth formed on an outer peripheral surface thereof and plurality of key holes formed in the opposite side of the transmission gear part, in which the hub synchro is coax... | 09/16/2008 |
| 7415905 | Vehicular transmissions utilizing slipper ring clutch control Provided are various vehicular transmission combinations utilizing selectively engageable spiral-type couplings or slipper ring clutches, operable to provide smooth shifting between gear sets, in place of traditional shifting mechanisms, such as hydraulic plate-type... | 08/26/2008 |
| 7387043 | Method of changing gears of an automobile, automotive gear shifter, controller for automotive gear shifter, and actuator controller for automotive gear shifter To enable compactness by lowering the connecting force of dog clutch so as to decrease the energy consumption and reduce the size of a system. A method of changing gears of automobile which moves the dog clutch in the axial direction at the time of gear change, whil... | 06/17/2008 |
| 7370548 | Method for controlling and regulating a transmission brake in an automatic motor vehicle transmission A method for the control and regulation of a transmission brake in an automatic transmission with a countershaft. The transmission brake arrests a transmission input shaft or a countershaft during an upshifting procedure. The speed of rotation (1) of these sh... | 05/13/2008 |
| 7367358 | Medical fluid delivery system and method relating to the same A medical fluid delivery system for the use in the delivery of medical fluids. The medical fluid delivery system may include a pumping system, a disposable medical fluid line set and a valve operating system. The disposable tubing line set may include valves adapted... | 05/06/2008 |
| 7357047 | Power unit vehicle use automatic transmission device A power unit with a multi-stage automatic transmission having two clutches for use in a vehicle as an automatic transmission. The transmission has a first group of driving gears fixed to a tubular auxiliary main shaft end a first group of follower gears rotatably mo... | 04/15/2008 |
| 7353726 | Shifting device for a transmission A shifting device for a transmission, in which at least one gearshift package is allocated to two non-successive gears and each of these gearshift packages is coupled with a gearshift lever. An H- or a multiple H-shifting diagram is allocated to the gearshift lever,... | 04/08/2008 |
| 7350433 | Transmission control system A transmission control system for maintaining good positioning performance even if a dynamic characteristic of a transmission is out of a predicted range. A sliding mode controller provided in a shift controller has two degrees of freedom and can independently speci... | 04/01/2008 |
| 7347118 | Process and device for preventing the engagement of an impermissible speed in an automated gearbox A process for preventing the engagement of an impermissible speed in an automated gearbox with a gear-switching member, which can be moved along a gear-selection speed range and out of it into speed step ranges containing the following steps: acquiring the speed ste... | 03/25/2008 |
| 7334493 | Device for reduction of axial movement of the main shaft gears in a transmission with at least two countershafts A device for the reduction of axial movement of the main shaft gears (2) in a transmission containing at least two countershafts. The main shaft gears (2) are held axially by two washer discs (3, 4) which is designed to be a pressing device (... | 02/26/2008 |
| 7331897 | Active shift transmission, transmission control unit and automobile The object of the invention is to provide a less expensive active transmission control system for an automobile, capable of disconnecting an engine, without increasing the number of dog clutches. In an active shift transmission, a second intermediate shaft is... | 02/19/2008 |
| 7331899 | Hybrid vehicle powertrain with a multiple-ratio power transmission mechanism A control method and system for a hybrid vehicle powertrain with an electric motor in a power flow path between an internal combustion engine and a multiple-ratio geared transmission. Motor torque, which is added to engine torque to obtain an effective transmission ... | 02/19/2008 |
| 7316304 | Four-wheel drive center disconnect electric actuator A four-wheel drive center disconnect electric actuator is provided. The actuator includes a one-way motor that actuates a cam mechanism for causing engagement and disengagement of the center disconnect. The actuator achieves improved reliability and efficiency throu... | 01/08/2008 |
| 7308837 | Automated manual transmission control apparatus An automated manual transmission control apparatus includes: a clutch; a transmission including: an input shaft; an output shaft; at least one forward shift stage gear; at least one synchromesh mechanism; and at least one reserve shift stage gear; an input shaft rot... | 12/18/2007 |
| 7288040 | Method for controlling the drive train of a vehicle Disclosed is a method for controlling a drive train (1) of a motor vehicle, especially an off-road vehicle, comprising a drive engine (2), a multi-group transmission (4), an output and a control device. The multi-group transmission (4) co... | 10/30/2007 |
| 7282008 | Mode switch control system for hybrid transmission A mode switch control system for a hybrid transmission for a powertrain, the powertrain including an engine, a first motor/generator, and a second motor/generator, which controls a mode switch from a high speed mode to a low speed mode. The high speed mode is establ... | 10/16/2007 |
| 7272987 | Hybrid powertrain system A powertrain system is provided that includes a first prime mover and change-gear transmission having a first input shaft and a second input shaft. A twin clutch is disposed between the first prime mover and the transmission. The twin clutch includes a first main cl... | 09/25/2007 |
| 7267024 | Gear, and method and apparatus for manufacturing the same An idler gear having a part worked by cutting is formed such that a chamfer part is formed at least on a portion between a tooth shape and chamfers are formed on the tooth shape by a forging process on an outer peripheral surface and an end part thereof in an axial ... | 09/11/2007 |
| 7264070 | Vehicle drive system In a vehicle drive system, a pair of rear wheels is driven by first and second motors. The first motor is designed to specifications suited to delivering torque at low rotational speeds and the second motor is designed to specifications suited to delivering torque a... | 09/04/2007 |
| 7261671 | Hybrid vehicle powertrain with a multiple-ratio power transmission mechanism A control method and system for a hybrid vehicle powertrain with an electric motor in a power flow path between an internal combustion engine and a multiple-ratio geared transmission. Motor torque, which is added to engine torque to obtain an effective transmission ... | 08/28/2007 |
| 7249537 | Double clutch transmission for a hybrid electric vehicle and method for operating the same A double clutch transmission is described that ideally changes torque received from an engine and a motor by providing an optimal layout in power transmission scheme and motor location. Such a double clutch transmission is optimally adapted to a hybrid electric vehi... | 07/31/2007 |
| 7247115 | Method for controlling a drivetrain in a motor vehicle A method for controlling a drivetrain (1) in a motor vehicle is disclosed, in particular in an off-road vehicle with a drive unit (2), a multi-group transmission (4) and an output. The multi-group transmission (4) comprises at least an au... | 07/24/2007 |
| 7243575 | Braking mechanism for a gear An indexing and braking mechanism for a manual transmission having a shifting mechanism and at least one rotatable drive shaft is disclosed. The mechanism includes an indexing mechanism for controlling movement of the shifting mechanism between at least a first posi... | 07/17/2007 |
| 7226379 | Active shift transmission, transmission control unit and automobile The object of the invention is to provide a less expensive active transmission control system for an automobile, capable of disconnecting an engine, without increasing the number of dog clutches. In an active shift transmission, a second intermediate shaft is... | 06/05/2007 |
