| Patent application number | Description | Published |
|---|
| 20080271554 | Device for the rotationally fixed connection of a shaft to at least one component mounted to rotate on the shaft - A device for connecting, in a rotationally fixed manner, a shaft to at least one component which is rotationally supported on the shaft, such as a gear wheel of a gear in a transmission. The device includes an actuating element that is rotationally fixed, but axially slides on the shaft, such that when the element is actuated by an actor, the element actively, frictionally communicates with the component to at least approximately equalize a rotational speed difference, between the component and the shaft. The actuating element can be actuated by the actor with a force to frictionally connect the component to the shaft in a rotationally fixed manner. The device further includes a holding device, which retains the actuating element in a shift condition essentially equivalent to the rotationally fixed condition of the component without further actuation of the actor. | 11-06-2008 |
| 20090205454 | TRANSMISSION DEVICE AND METHOD FOR OPERATING A VEHICLE DRIVETRAIN - A transmission device has at least two change-under-load shift elements with transmission capacities that are varied an actuation device. A method for operating a drive train including transmission and drive engine includes a step that when the transmission is shifted, one of the shift elements, which is engaged in the force flow, is disengaged by the actuation device and the other shift element, which is engaged, is disengaged. The actuation device includes an actuator which applies an actuating force to actuate the shift elements and a coupling device by which the actuator communicates with the shift elements to actuate them, such that an actuating force of the actuator, which is actuating the shift element to be disengaged, can be reduced, while an actuating force of the actuator, which is actuating the shift element to be engaged can simultaneously be increased. | 08-20-2009 |
| 20090232673 | METHOD AND DEVICE FOR CONTROLLING THE OIL SUPPLY OF AN AUTOMATIC GEARBOX AND A STARTING ELEMENT - A method and a device for controlling the oil supply of an automatic transmission (gearbox) and to a starting element. The method can guarantee a sufficient supply of oil to a hydraulic control unit of the automatic transmission and/or the starting element, in particular an oil-cooled friction clutch, both during the operation of the internal combustion engine ( | 09-17-2009 |
| 20090301243 | DEVICE FOR TRANSMITTING A TORQUE | 12-10-2009 |
| 20090301248 | DEVICE FOR ACTUATING A GEARWHEEL, WHICH IS DESIGNED AS A LOOSE WHEEL, OF A TRANSMISSION DEVICE - A device for actuating a gearwheel of a transmission device. The gearwheel rotates on a shaft and can be shifted by way an engagement mechanism that includes at least one actuator that is arranged at least partially inside the shaft. The actuator can be actuated by a pressure medium to fix the gearwheel to the shaft. The actuation force required for engaging or disengaging the gearwheel can come from within the shaft. The actuator is a piston-cylinder unit which is either rotationally fixed to the shaft or rotationally fixed relative the shaft. When the actuator is rotationally fixed relative to the shaft, the active connection between the actuator and the gearwheel, which is to be shifted, includes a drive decoupling unit between the actuator and the shaft. | 12-10-2009 |
| 20100043586 | DEVICE FOR ACTUATING A GEARWHEEL, WHICH IS DESIGNED AS A LOOSE WHEEL, OF A TRANSMISSION DEVICE | 02-25-2010 |
| 20100051405 | DEVICE OF A ROTATIONALLY FIXEDLY CONNECTING A SHAFT TO A COMPONENT WHICH IS ROTATABLY MOUNTED ON THE SHAFT - A device for rotationally fixing a shaft to a component that is rotatably arranged on the shaft. The actuating element positively engages the components to rotationally fix the components to the shaft. The difference in rotational speeds, between the component and the shaft, can be at least approximately compensated for by the actuating element. The actuating element, for rotationally fixing the component to the shaft by the actuator, is operatively connected to at least one support body, which is rotationally fixed with respect to the shaft in such a manner that the actuating element can act upon the component with an actuating force that depends on the torque to be transmitted from the shaft to the component and which is independent of the actuation of the actuator in the state in which the actuating element can be rotated relative to the shaft. | 03-04-2010 |
| 20100071497 | TRANSMISSION DEVICE HAVING AT LEAST ONE SHIFT ELEMENT WHICH CAN BE ACTUATED BY MEANS OF AN ACTUATOR ARRANGEMENT WHICH HAS AT LEAST ONE ELECTRICAL COMPONENT - A transmission device ( | 03-25-2010 |
| 20100199799 | SHIFTING ELEMENT COMPRISING AT LEAST THREE SHIFT POSITIONS FOR SHIFTING TWO GEAR RATIOS - A shift element comprising at least three shift positions for shifting two gear transmission ratios in which in a first end position, which corresponds to a first shift position, the first gear transmission ratio is engaged and in a second end position, which corresponds to a second shift position, the second gear transmission ratio is engaged, while in the central position, which corresponds to a third shift position, both gear transmission ratios are engaged. | 08-12-2010 |
| 20100206106 | DUAL CLUTCH TRANSMISSION - A double clutch transmission with two clutches connected to a drive shaft and to one of two transmission input shafts. Fixed gears are coupled to the input shafts and engage idler gears. Several coupling devices connect the idler gears to a countershaft which have an output gear that couple gears of an output shaft such power shift forward gears and a reverse gear can be shifted. Three dual gear planes each comprising one fixed gear which is supported by an input shaft and two idler gears which are supported by a respective countershaft. In each dual gear plane at least one idler gear wheel can be used for at least two gears such that at least one winding-path gear is engaged by engagement of a disengaged output coupling device assigned to one of the output gear wheels. | 08-19-2010 |
| 20100206107 | DUAL CLUTCH TRANSMISSION - A double clutch transmission with two clutches connected to a drive shaft and to one of two transmission input shafts. Fixed gears are coupled to the input shafts and engage idler gears. Several coupling devices connect the idler gears to a respective countershaft which have an output gear that couple gears of an output shaft such that forward and reverse gears can be shifted. Three dual gear planes each comprise two idler gears, each supported by a respective countershaft, and one fixed gear. In each dual gear plane, at least one idler gear wheel can be used for implementing at least two gears so that at least one winding-path gear can be shifted via a shifting device. | 08-19-2010 |
| 20100206108 | DUAL CLUTCH TRANSMISSION - A double clutch transmission with two clutches connected to a drive shaft and to one of two transmission input shafts. Fixed gears are coupled to the input shafts and engage idler gears. Several coupling devices connect the idler gears to a countershaft which have an output gear that couple with gears of an output shaft such that forward and reverse gears can be shifted. Two dual gear planes each comprise two idler gears, each supported by a respective countershaft, and one fixed gear. In each dual gear plane, at least one idler gear is used for two gears. Two single gear planes each comprise an idler gear and a fixed gear such that at least one winding-path gear is shifted via a shifting device on the second countershaft, and at least one winding-path gear is shifted via a non-engaged coupling device, assigned to an output gear wheel on the first countershaft. | 08-19-2010 |
| 20100212441 | DUAL CLUTCH TRANSMISSION - A dual clutch transmission having countershafts, idler gears and input shafts with gears which engage with the idler gears. The countershafts have a power take-off gear that is coupled to an output shaft. Shift elements connect gear wheels to engage forward and reverse gears. The transmission has two dual gear planes and two single gear planes, one idler gear of the countershafts being respectively associated with a fixed gear of one of the transmission input shafts in each of the dual gear planes. An idler gear in each dual gear plane is utilized for two gears and one idler gear of one countershafts associating with an input shaft fixed gear to shift at least one winding path gear via at least one shift element on each countershaft, and at least one winding path gear can be shifted with a coupling device associated with the take-off gear of the first countershaft and is disengaged. | 08-26-2010 |
| 20100218628 | DUAL CLUTCH TRANSMISSION - A double clutch transmission with two clutches connected to a drive shaft and to one of two transmission input shafts. Fixed gears are coupled to the input shafts and engage idler gears. Several coupling devices connect the idler gears to a countershaft which have an output gear that couple gears of an output shaft such power shift forward gears and a reverse gear can be shifted. Two dual gear planes each comprising one fixed gear which is supported by an input shaft and two idler gears which are supported by a respective countershaft. In each dual gear plane at least one idler gear wheel can be used for at least two gears. Two single gear planes each comprise an idler gear wheel and a fixed gear wheel, so that at least one winding-path gear can be shifted via the shifting device and one winding-path gear via another shifting device. | 09-02-2010 |
| 20100218629 | DUAL CLUTCH TRANSMISSION - A double clutch transmission with two clutches connected to a drive shaft and to one of two transmission input shafts. Fixed gears are coupled to the input shafts and engage idler gears. Several coupling devices connect the idler gears to either first or second countershafts which each have an output gear that couple gears of an output shaft such that forward and reverse gears can be shifted. A shifting device couples gears to engage power shift forward and reverse gears. Two dual gear planes each comprising one fixed gear and two idler gears which are supported by a respective countershaft. In each dual gear plane, at least one idler gear wheel can be used for at least two gears. Two single gear planes each comprise an idler and fixed gear such that at least one power shift winding-gear is engaged by a shifting device. | 09-02-2010 |
| 20100242646 | DUAL CLUTCH TRANSMISSION - A double clutch transmission with two clutches that have inputs connected to a drive shaft and outputs which are each connected to one of first and second transmission input shafts. Fixed gears are coupled to the input shafts and engage idler gears. Several coupling devices connect the idler gears to a respective countershaft which have an output gear that couples with an output shaft such that forward and reverse gears can be shifted. First and second dual gear planes each comprise two idler gears supported by a respective countershaft, and one fixed gear. In each of the first and the second gear planes, at least one idler gear is used for two gears. First and second single gear planes each comprise an idler gear and a fixed gear such that at least one winding-path gear can be shifted via at least one, non-engaged coupling device, assigned to one of the output gear. | 09-30-2010 |
| 20100257952 | DOUBLE CLUTCH TRANSMISSION - A double clutch transmission with two clutches whose input sides are connected to a drive shaft and whose output sides are each connected to one of two transmission input shafts arranged coaxially with respect to one another. At least two countershafts are provided on which toothed idler gearwheels are rotatably supported, and toothed fixed gearwheels are positioned on the two transmission input shafts in a rotationally fixed manner such that it is possible to shift at least a plurality of power shiftable forward gears and at least one reverse gear. A maximum of six gear planes are provided so that at least one winding path gear is shiftable when a coupling device of the second countershaft, associated with the output gear, is disengaged. | 10-14-2010 |
| 20100257953 | DOUBLE CLUTCH TRANSMISSION - A double clutch transmission with two clutches whose input sides are connected to a drive shaft and whose output sides are each connected to one of two transmission input shafts positioned coaxial with respect to one another. At least two countershafts provided and support toothed idler gearwheels while the two transmission input shafts support toothed fixed gearwheels such that it is possible to shift at least a plurality of power shift forward gears and/or at least one reverse gear. Five gear planes are provided so that at least one winding path gear is shiftable when at least one coupling device, assigned to the output gear, is disengaged. | 10-14-2010 |
| 20100257955 | DOUBLE CLUTCH TRANSMISSION - A double clutch transmission with two clutches having input sides connected to a drive shaft and the output sides connected to one of two transmission input shafts which are coaxially arranged, at least two countershafts on which toothed idler gearwheels are supported, toothed fixed gearwheels are arranged in a rotationally fixed manner on both of the transmission input shafts and mesh with at least one of the idler gearwheels. A plurality of coupling devices, each connecting one idler gearwheels to a countershaft in a rotationally fixed manner, and one power take-off gear provided on each of the two countershafts, each of which gearwheels is coupled with gearing of an output shaft, such that a plurality of power shift forward gears and at least one reverse gear can be shifted. | 10-14-2010 |
| 20100257958 | DOUBLE CLUTCH TRANSMISSION - A double clutch transmission with two clutches with input sides connected to a drive shaft and output sides each respectively connected to one of two transmission input shafts disposed coaxially to one another. At least two countershafts are provided upon which toothed idler gearwheels are mounted in a rotatable manner and toothed fixed gearwheels are disposed on the two transmission input shafts in a rotationally fixed manner. At least one shift element is provided for connecting two idler gearwheels in a rotationally fixed manner such that at least several power shiftable forwards gears and/or at least one reverse gear can be shifted. A maximum of six gear planes are provided so that at least one power shiftable winding path gear can be shifted using the at least one shift element. | 10-14-2010 |
| 20100257959 | DOUBLE CLUTCH TRANSMISSION - A double clutch transmission comprising two clutches (K | 10-14-2010 |
| 20100257960 | DOUBLE CLUTCH TRANSMISSION - A double clutch transmission with first and second clutches (K | 10-14-2010 |
| 20100257963 | DOUBLE CLUTCH TRANSMISSION - A double clutch transmission with two clutches (K | 10-14-2010 |
| 20100257964 | DOUBLE CLUTCH TRANSMISSION - A double clutch transmission with two clutches (K | 10-14-2010 |
| 20100257967 | DOUBLE CLUTCH TRANSMISSION - A double clutch transmission with two clutches with input sides connected to a drive shaft and output sides each respectively connected to one of two transmission input shafts arranged coaxially with each other. At least two countershafts on which toothed idler gearwheels are rotatably supported. There are toothed fixed gearwheels arranged on the two transmission input shafts in a rotationally fixed manner. At least one first shift element is provided for connecting two idler toothed gears in a rotationally fixed manner whereby at least several power-shift forward gears at least one reverse gear are capable of being implemented. There are a maximum of seven gear planes so that at least one winding path gear is shifted with a disengaged first output coupling device that is allocated to the first power take-off gear. | 10-14-2010 |
| 20100294060 | DUAL CLUTCH TRANSMISSION - A double clutch transmission with two clutches connected to a drive shaft and to one of two transmission input shafts. Fixed gears are coupled to the input shafts and engage idler gears. Several coupling devices connect the idler gears to a countershaft which have an output gear that couples to an output shaft such that forward and reverse gears can be shifted. Two dual gear planes each comprising two idler gears, each supported by a respective countershaft, and one fixed gear. In each dual gear plane, at least one idler gear wheel can be used for at least two gears. Two single gear planes each comprise an idler and a fixed gear such that a winding-path gear is shifted by disengaging an output gear wheel coupling device on the first countershaft. Another winding-path gear is shifted by disengaging an output gear wheel coupling device on the second countershaft. | 11-25-2010 |
| 20100324792 | METHOD FOR BLOCKING INADMISSIBLE GEAR SHIFTS IN A TRANSMISSION AND SHIFT ASSEMBLY FOR A TRANSMISSION - A method of blocking inadmissible gearshift processes in a transmission with a plurality of shifting devices which, in order to carry out a shift process, are moved by actuating devices when a shift command is sent by a control unit to the relevant actuating device. The actuating devices exchange data with one another and the control unit such that the actuating device of the shifting device to be shifted is activated only if clearance is given by at least another actuating device. In a transmission with a control unit and a plurality of actuating devices for the actuation of shifting devices, the actuating devices are associated with at least one shaft and connected for data exchange with one another and with the control unit such that the actuating device of the shifting device to be shifted can be activated provided that clearance has been given by at least one other actuating device. | 12-23-2010 |
| 20110005345 | ACTUATING ARRANGEMENT FOR SHIFT ELEMENTS OF A TRANSMISSION - An actuating system for at least first and second coaxially arranged shifting elements of a transmission, in particular, a dual-clutch transmission ( | 01-13-2011 |
| 20110005886 | ACTUATING DEVICE FOR A FRICTION CLUTCH DEVICE AND TORQUE TRANSMISSION DEVICE FORMED BY THE SAME - An actuating device for applying actuating forces in a friction clutch device for engaging and disengaging a friction clutch assembly of the friction clutch device. The torque transmission device comprises the actuating device for transmission of torque between a drive unit and a transmission which also includes the friction clutch device. A method for installing a torque transmission device of this type. Various aspects relate to setting of a pre-load on a bearing of the actuating device, setting an over-dead-point configuration for a compensation spring associated with at least one rotary member of the actuating device, setting a rotation movement range for the rotary member and/or an axial movement range for an actuating element which can be displaced axially by rotation movement imparted to the rotary member, and producing either a normally engaged or disengaged characteristic in a normally-engaged or normally-disengaged friction clutch assembly with the compensation spring. | 01-13-2011 |
| 20110031085 | ARRANGEMENT FOR SHIFTING AT LEAST TWO FREEWHEELS - The invention relates to an arrangement for coupling at least two freewheels ( | 02-10-2011 |
| 20110048150 | ACTUATING ASSEMBLY FOR A CENTRALLY SYNCRONISED DUAL-CLUTCH TRANSMISSION - An actuating assembly for actuating synchronizing elements of a centrally synchronized dual-clutch transmission having at least a first part-transmission ( | 03-03-2011 |
| 20110048156 | DEVICE FOR SHIFTING AT LEAST ONE FREEWHEEL ON AN ASSOCIATED SHAFT OF A GEAR MECHANISM - The invention relates to an arrangement for shifting at least one freewheel ( | 03-03-2011 |
| 20110079101 | ACTUATING APPARATUS FOR ACTUATING AT LEAST ONE SHIFT APPARATUS AND METHOD FOR THE ASSEMBLY AND DISASSEMBLY THEREOF - An actuating apparatus for actuating a shifting mechanism in a transmission to shift a gear wheel on a hollow shaft with an actuator module that is at least partially positioned within the hollow shaft and which comprises an actuator which can be connected with a coupling element of the shift mechanism which radially, inwardly extends into the inner diameter of the hollow shaft. The enclosure of the actuator module has at least an axially extending assembly passageway which guides the coupling element, during axial insertion of the actuator module into the hollow shaft. A method for the assembly and disassembly of an actuator module, with at least one actuator of an actuating apparatus for inside actuation of a shift mechanism on the hollow shaft. The actuator module is axially inserted into the hollow shaft and rotated via an assembly guide. | 04-07-2011 |
| 20110099994 | POSITIVELY ENGAGING SHIFTING ELEMENT WHICH CAN BE HYDRAULICALLY OR PNEUMATICALLY ACTUATED - The invention relates to a positively engaging shifting element which can be hydraulically or pneumatically actuated, comprising a hydraulically or pneumatically actuatable piston (I) having a piston compartment ( | 05-05-2011 |
| 20110108384 | POSITIVELY ENGAGING SHIFTING ELEMENT WHICH CAN BE HYDRAULICALLY OR PNEUMATICALLY ACTUATED - The invention relates to a positively engaging shifting element which can be hydraulically or pneumatically actuated, comprising a hydraulically or pneumatically actuatable piston (I) having a piston compartment ( | 05-12-2011 |
| 20120125731 | TRANSMISSION ARRANGEMENT FOR A VEHICLE - A transmission configuration for a vehicle with at least a wet clutch ( | 05-24-2012 |
| 20120145509 | ELECTROMECHANICAL ACTUATING ASSEMBLY - An electromechanical actuating assembly for at least an actuator element of a vehicle transmission with at least a drive device which is coupled with to an actuator device to activate an actuator element. The actuator device comprises of a toggle lever mechanism which is actuated by a ramped contour. | 06-14-2012 |
| 20130196814 | POWER-SHIFTABLE TRANSMISSION - A power-shiftable transmission, in particular an automatic transmission for a vehicle, which comprises a plurality of frictional shifting elements and at least one interlocking shifting element (A, B, C, D, E) and a plurality of gearwheels which can be engaged in a power flow by the shifting elements (A, B, C, D, E). In order to engage a gear step, at least two associated shifting elements (A, B, C, D, E) are engaged and at least one interlocking shifting element (B), as a shifting element (B) to be engaged, is associated with a gear step to be engaged with a supporting gear. | 08-01-2013 |
| 20130345018 | HYBRID DRIVE OF A MOTOR VEHICLE - A hybrid drive of a motor vehicle having an automated manual transmission with two coaxial input shafts and a common output shaft. The input shafts are respectively driven by an engine and an electric machine and can couple the output shaft via respective groups of gearwheel sets. Each gearwheel set comprises a gear fixed to the associated input shaft and an idler gear supported by respective countershafts. At least two idler gears disposed on one of the two countershafts of two gearwheel sets, within the transmission, assigned to two different input shafts, can be coupled via a winding-path shift element, and the two output constants are disposed in a common radial plane by using a common output gear disposed on the output shaft. | 12-26-2013 |
| 20140011624 | TRANSMISSION WITH DISENGAGEABLE VARIATOR - A transmission, preferably for driving a motor vehicle, includes a multi-gear main transmission and a range group, that is connected downstream from the main transmission and comprises an input shaft and an epicyclic gear system. The epicyclic gear system comprises elements in the form at least of a central gearwheel and a planetary carrier. Furthermore, the transmission comprises a first connection for driving one of the elements of the epicyclic gear system by way of the input shaft of the range group and a variator, as well as a second connection that can be engaged with the first connection for driving a further element of the elements of the epicyclic gear system. When the second connection is engaged, the input shaft of the range group drives the variator and a drive output of the variator drives the further element of the epicyclic gear system. | 01-09-2014 |
| 20140109705 | PARALLEL GEARSHIFT TRANSMISSION OF A MOTOR VEHICLE - A parallel shift transmission of a motor vehicle comprising splitter and range groups. At least the splitter group is split into two parallel transmission branches having countershafts. One branch can be actuated by a power-shift element to transfer rotation of a drive shaft to a countershaft, via a stepped transmission ratio of the splitter group according to the actuation of one of the transmission branches and then converting and transmitting the rotation, via one of a plurality of range transmission ratios of the range group, to an output shaft. In order to reverse rotation, parallel countershafts can be coupled by individual gearwheel pairs by actuation of associated switching elements such that one countershaft, at the output side of the splitter group in the flow of power flow from the drive to the output shaft, is connected to the other countershaft at a drive side of the range group. | 04-24-2014 |
| 20140196556 | PARALLEL SHIFT TRANSMISSION - A parallel shift transmission which comprises split and range groups, each of which is divided into two parallel transmission branches. One branch can be actuated by a load shift element to transfer rotation of a drive shaft, via a transmission ratio of the split group, and then to a countershaft of the associated branch. Subsequently rotation can be converted, via a range ratio of the range group, into rotation of an output drive shaft. The gear stages are alternately divided between the branches in the order of associated transmission ratios, while each of the range ratios is achieved by shifting one of the group stages of the range group. To drive a power take-off via the transmission, the load shift elements are individual clutches, each of which is arranged in the associated branch between an output-side counter shaft of the split group and a drive-side counter shaft of the range group. | 07-17-2014 |
| 20140230591 | Actuation Device for Actuating Switching Elements - The invention relates to an actuating device for actuating at least one shifting element ( | 08-21-2014 |
| 20140239737 | Electronic Control Device for Controlling Actuators - The invention relates to an electronic control device ( | 08-28-2014 |
| 20140264112 | Device for Controlling a Flow of Coolant and/or Lubricating Oil - The invention relates to a device for controlling at least one cooling oil flow and/or lubricating oil flow by means of at least one valve ( | 09-18-2014 |
