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| Number | Title | Issue Date |
| 7891263 | Dual speed transmission A two speed transmission system mounted for driving a marine craft comprising: an input shaft coupled in direct connection with a driveshaft of an engine of the marine craft; an output shaft coaxial with the input shaft coupled in direct connection with a driveline ... | 02/22/2011 |
| 7748287 | Dual clutch transmission apparatus A dual clutch transmission apparatus includes a first input shaft, a second input shaft arranged coaxially with the first input shaft and freely rotatable, a first counter shaft and a second counter shaft arranged in parallel with the first and the second input shaf... | 07/06/2010 |
| 7735389 | Double clutch transmission An input system includes an input shaft portion, including a first and second input shafts, bearings, rotatably supporting the input shaft portion; and clutches, for transmitting rotational power to the first or second input shafts. An output system includes a first... | 06/15/2010 |
| 7669497 | Powertrain with torque converter and axially compact seven speed dual clutch transmission A powertrain having a torque converter, friction input shifting clutches and shared driving gears has an axially compact design, packages a transmission pump between the torque converter and a clutch hub and achieves seven forward speed ratios utilizing four back-to... | 03/02/2010 |
| 7478572 | Transmission with torque sensors and method of controlling a transmission A transmission is provided with torque sensors on each of the power flow paths through the transmission so that actual torque data may be used in place of estimated data in controlling various vehicle operating characteristics, such as clutch apply or release, tract... | 01/20/2009 |
| 7472617 | Step-by-step variable transmission A step-by-step variable transmission has a housing, a drive input shaft device, a drive output shaft and a countershaft. A plurality of gearwheel sets are mounted on the drive input shaft and on the countershaft. The gearwheel sets can be shifted so as to establish ... | 01/06/2009 |
| 7469613 | Twin-clutch transmission A twin-clutch transmission, in particular for a motor vehicle, with a twin-clutch arrangement comprising a first and a second clutch, and a first and a second drive unit designed as an electric machine with a stator and a rotor. The rotor of the first drive unit is ... | 12/30/2008 |
| 7437963 | Power transmission A synchronizer-controlled transmission has a plurality of input shafts, which are selectively connectible with a transmission input shaft, at least one countershaft, which rotatably supports a plurality of ratio gears, and an output shaft. A plurality of synchronize... | 10/21/2008 |
| 7434487 | Twin clutch manual gearbox A twin-clutch manual gearbox has a first input shaft and a second input shaft to which engine rotation is selectively input via individual clutches. The second input shaft is rotatably fitted onto the first input shaft so that the first input shaft protrudes from an... | 10/14/2008 |
| 7428852 | Actuator mechanism for shift motors of a transmission A system for actuating couplers to produce gear changes in a motor vehicle transmission includes first and second actuator drums supported for rotation, and first and second shift forks. Each first shift fork is driveably connected to a first actuator drum, secured ... | 09/30/2008 |
| 7421919 | Double clutch transmission A double clutch transmission with a double clutch, the input side of which can be driven and the output sides each communicate with one of two transmission input shafts that are arranged coaxially relative to one another, with an intermediate shaft and with fixed or... | 09/09/2008 |
| 7418883 | Parking mechanism for transmission An automatic transmission includes a transmission case, a parking gear fixed to the transmission case, and a meshing mechanism, such as a synchromesh mechanism. The meshing mechanism includes a coupling sleeve to engage with the parking gear and hold a transmission ... | 09/02/2008 |
| 7409886 | Twin clutch transmission with coaxial drive and output The invention relates to a twin clutch transmission of high efficiency which is compact in every dimension. This twin clutch transmission can be used particularly in vehicles having a longitudinally installed engine. For this purpose, the transmission input shaft an... | 08/12/2008 |
| 7409885 | Method for controlling a twin-clutch transmission The invention concerns a method of controlling a twin-clutch transmission (10). When the torque transmitted in a first transmission path (C1, E2, Z8, Z9, S2, Z3, Z4) reaches an upper limit given by the torque t... | 08/12/2008 |
| 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 |
| 7387590 | Motor vehicle gear device as well as method for control of a motor vehicle A method for operating a motor vehicle after receiving an acceleration signal in which the motor vehicle power train includes first and the second torque transmission devices connected to first and second subgears. The operational method includes selecting and engag... | 06/17/2008 |
| 7383749 | Twin-clutch transmission for a motor vehicle A twin clutch transmission for a motor vehicle has two input shafts, two clutches, and driving shafts. The first input shaft can be actively connected to the first clutch, and the second input shaft can be actively connected to the second clutch. The first driving s... | 06/10/2008 |
| 7384374 | Tip-in/tip-out gear shift control for a powershift automatic transmission A method for shifting a transmission from a current gear to a target gear following release of an accelerator pedal, the transmission having first and second clutches for alternately connecting and disconnecting a power source and first and second input shafts, resp... | 06/10/2008 |
| 7360466 | Double clutch transmission In a double clutch transmission, the number of components of the transmission may be reduced and the gear train optimally arranged with a plurality of gears for two clutches and six-stage gear ratios. Such an arrangement proves for smooth shifting of gears to the ra... | 04/22/2008 |
| 7361111 | Power branching transmission for motor vehicles A power branching transmission suitable for motor vehicles having an internal-combustion engine which drives an input shaft of the power branching transmission has several branches comprising at least one power shift transmission with a number of gears and has an ou... | 04/22/2008 |
| 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 |
| 7313981 | Reverse gear arrangement in a countershaft transmission A reverse gear arrangement in a countershaft transmission (1, 40, 44) having at least one starting element (2, 41), at least one transmission input shaft (4, 5, 42), one countershaft (22), fixed or idler gear wheels fastened or rotatably ... | 01/01/2008 |
| 7314427 | Driving force transmission apparatus A driving force transmission apparatus is provided for a twin clutch transmission with two clutches, that are controlled a gear change control without a torque cutting out to reduce slapping sounds of the gears by performing a pre-shift operation before the gear shi... | 01/01/2008 |
| 7311015 | Multi-step manual transmission for an internal combustion engine A multistage transmission for an internal combustion engine has a disconnect-type clutch, a drive shaft and a driven shift on which engaged gear wheels are arranged to achieve different gear steps. Clutches actuated via shift forks are used to move the speed gears t... | 12/25/2007 |
| 7305900 | Twin-clutch transmission A twin-clutch transmission wherein a center distance between input shafts and an auxiliary speed-change shaft can be shortened and the number of gears can be reduced. A twin-clutch transmission is provided which includes a first input shaft and a second input shaft,... | 12/11/2007 |
| 7287442 | Six-gear or seven-gear dual-clutch transmission A six-gear or seven-gear dual-clutch transmission (1, 30) comprising two clutches (K1, 2) the input sides of which are connected with one drive shaft (2) of a prime mover and the output sides with each one of two input shafts (3, 4) dispo... | 10/30/2007 |
| 7272986 | Dual input automatic transaxle A transaxle for a vehicle includes a first input shaft having a first speed drive gear, a third speed drive gear, and a reverse drive gear; and a second input shaft having a second speed drive gear. An output shaft has a first speed driven gear engaged with the firs... | 09/25/2007 |
| 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 |
| 7267022 | Multistep transmission of a layshaft type A multi-speed transmission of countershaft design having a main countershaft and a hollow countershaft arranged concentrically and having likewise two load-shift elements. A first half of the shift elements is connected with a drive unit and a second half of the shi... | 09/11/2007 |
| 7263907 | Dual clutch transmission with a torque converter A multi-speed transmission for transmitting power from a power source includes a torque converter as well as dual clutches which may be arranged as dual input clutches or dual output clutches. To combine the smoothness and ratio boosting effects of a torque converte... | 09/04/2007 |
| 7258032 | Double clutch transmission Engine torque selectively inputted through first and second input shafts is received and changed selectively by first and second output devices respectively having first and second output shafts. A reverse driven gear is axially offset from drive gears on the first ... | 08/21/2007 |
| 7246536 | Dual clutch kinematic arrangements with wide span A multiple speed power transmission is disclosed having an input, first and second input shafts, first and second clutches releasably coupling the input to the first and second input shafts, respectively, and a set of selectable power paths connecting the first and ... | 07/24/2007 |
| 7240578 | Gearing and power transmission apparatus A transmission apparatus includes an interlock member having a restraining portion movable together with a shift and select member in a right-angled direction and, while fork heads are at neutral positions in the right-angled direction, extending in the right-angled... | 07/10/2007 |
| 7231845 | Cone selector and associated transmission assembly A multi cone selector in a transmission employs sandwiched cone friction surfaces 19A, 20A and 21A and these are shown in free or unengaged state while the corresponding friction surfaces as numerals 19, 20 and 21 are shown as enga... | 06/19/2007 |
| 7225696 | Double clutch transmission In a double clutch transmission in which an input shaft can be coupled by two load clutches selectively with a central intermediate shaft and a concentric intermediate shaft and each of the intermediate shafts can be operatively connected by gear stages selectively ... | 06/05/2007 |
| 7219571 | Transmission having an electro-mechanical gear actuation system A transmission having an electromechanical gear actuation system includes an input shaft, a counter shaft, and a plurality of gear sets that are adapted to be operatively engaged to and disengaged from their shafts. A plurality of synchronizers operatively engage an... | 05/22/2007 |
| 7213480 | Motor vehicle transmission A motor vehicle transmission having two intermediate shafts, which can alternately be driven via disengageable primary gearwheels, and drive a main shaft, via gearwheels on the respective main shaft and intermediate shaft, which gearwheels engage with one another in... | 05/08/2007 |
| 7210367 | Twin-clutch transmission Since the first-speed-ratio counter gear is carried by the first countershaft, the second countershaft carries other counter gears which transmit the relatively small drive torque, such as the forth-speed-ratio counter gear, the second-speed-ratio counter gear and t... | 05/01/2007 |
| 7204166 | Dual clutch assembly for a heavy-duty automotive powertrain A dual friction clutch assembly for a multiple-ratio transmission comprises separate friction disks of the assembly separately connected to each of two torque input shafts for the transmission. Two torque flow paths for the torque input shafts are defined in part by... | 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 |
