序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
141 Multi-speed transmission with planetary gear sets and layshafts US12954933 2010-11-29 US08360923B2 2013-01-29 Alexander Filippovich Kraynev; Vladimir Konstantinovich Astashev; Konstantin Borisovich Salamandra; Madhusudan Raghavan
A transmission is provided that includes a first compound planetary gear set and a second planetary gear set. An input member, an output member and the planetary gear sets are arranged coaxially with one another to define a first axis of rotation. A first and a second layshaft are arranged coaxially with one another to define a second axis of rotation. A first set of intermeshing gears transfer torque from the input member to the first layshaft. A second set of intermeshing gears transfer torque from the second layshaft to the second planetary gear set. Seven torque-transmitting mechanisms are engagable in different combinations to establish multiple forward speed ratios and a reverse speed ratio between the input member and the output member.
142 Automatic group transmission US12528482 2008-02-22 US08230752B2 2012-07-31 Martin Miller; Bernd Doebele; Josef Bader
An automated group transmission having a multi-stage main transmission (HG), a splitter group (VG) connected upstream from the main transmission (HG) and a two-stage range-change group (BG) connected downstream of the main transmission (HG), such that the splitter group (VG) is connected, via a controllable separator clutch, to a drive motor. The main transmission (HG) and the range-change group (BG) are of either a synchronized or an unsynchronized design and the shifting clutches of two respective transmission ratio steps, in at least one of the partial-transmissions (VG, HG, BG), are respectively combined in a common shifting packet with two shift positions and a neutral position. To speed up most range shifts, it is provided that in the main transmission (HG) the shifting clutches associated with the lowest transmission ratio step (G1) and with the highest transmission ratio step (G4 or G3) are combined in a common shifting packet (S1/4 or S1/3).
143 Multi-speed transmission with selectable one-way braking clutch US12404670 2009-03-16 US08177677B2 2012-05-15 Farzad Samie; Chunhao J. Lee
A multi-speed transmission for a vehicle is provided with a selectable one-way braking clutch (SOWBC). The transmission has one or more planetary gear sets, and a set of intermeshing gears, which may be a planetary gear set. Multiple torque-transmitting mechanisms are engagable in different combinations to establish at least one reverse speed ratio and multiple forward speed ratios between an input member and an output member. A selectable one-way braking clutch is configured to brake in one rotational direction and is selectively reversible to brake in an opposite rotational direction, and freewheels in some speed ratios.
144 Multi-step gear US11529692 2000-10-11 USRE43315E1 2012-04-17 Peter Ziemer
The invention concerns a multi-step transmission with at least 7 forward gears, with which transmission on the input drive shaft (1), two non-shiftable input-side gear sets (RS1, RS2) are provided, which, on their output-side produce two speeds of rotation (n1, n2), which, besides the speed of rotation of the input drive shaft (1), by selective closure of the shift elements (A, B, C, D, E) are shiftable in such a manner to one of the output-side planetary gear sets (RS3, RS4) which upon the output drive shafts (2), that for the shifting from one into the respective next following higher or lower gear of the two activated shift elements, respectively, only one shifting element must be open and a further element closed.
145 SPEED REDUCING DEVICE US13197060 2011-08-03 US20120036958A1 2012-02-16 Akira YAMAMOTO
Provided is a speed reducing device in which a thrust load is applied from a shaft of a counterpart machine to an output shaft, the speed reducing device including: a bearing directly supporting the output shaft to be rotatable and receiving a thrust load applied to the output shaft; a hollow body including a hollow portion and rotating along with the output shaft; and a connection member inserted into the hollow portion of the hollow body to be connected to the hollow body and the shaft of the counterpart machine, wherein the bearing receives the thrust load of the shaft of the counterpart machine applied to the output shaft through the connection member.
146 Multi-group transmission of a motor vehicle US12477162 2009-06-03 US08066606B2 2011-11-29 Alan Dittrich; Rayk Hoffmann
A multi-group transmission of a vehicle is arranged in a drivetrain and includes traction force support during gearshift operations. A clutch mechanism, including a frictional clutch and two shifting clutches is arranged between a drive motor with a driveshaft and a transmission input shaft, such that the driveshaft can be connected to the transmission input shaft by one shifting clutch in a first shift position in combination with the frictional clutch or in a second shift position with bridging of the frictional clutch, such that the driveshaft can be directly connected to a main transmission shaft by the other shifting clutch in a shift position in active combination with the frictional clutch. In a method for operating the transmission, the frictional clutch is controlled and operated in combination with the first shifting clutch as a starting clutch and with the second shifting clutch as an intermediate-gear clutch.
147 Multi-speed transmissions US12371649 2009-02-16 US08052566B2 2011-11-08 Scott H. Wittkopp; Andrew W. Phillips; Clinton E. Carey; James M. Hart
The transmission has a plurality of members that can be utilized in powertrains to provide at least ten forward speed ratios and one reverse speed ratio. The transmission includes four planetary gear sets, six torque-transmitting devices, and four fixed interconnections. The powertrain includes an engine and torque converter that is continuously connected to one of the planetary gear members and an output member that is continuously connected with another one of the planetary gear members. The six torque-transmitting devices provide interconnections between various gear members and the transmission housing, and are operated in combinations of three to establish at least ten forward speed ratios and one reverse speed ratio.
148 HYBRID DRIVE TRAIN OF A MOTOR VEHICLE US13062824 2009-09-07 US20110263370A1 2011-10-27 Kai Borntraeger; Rene Budach; Axel Michael Mueller
A hybrid drive train of a motor vehicle which comprises a combustion engine, an electric machine which is operable as a motor and a generator and comprises a stator and a rotor, and a multi-stage planetary transmission with input and output shafts. The driveshaft of the combustion engine can be connected to the input shaft of the transmission, the electric machine is coaxially arranged about the input shaft, and the rotor of the electric machine is rigidly connected with the input shaft. To achieve a starting acceleration and climbing capacity on starting, corresponding to those provided by a drive train with an automatic transmission and a hydrodynamic torque converter or a manual gearshift transmission with a converter shifting clutch, the rotor of the electric machine can be connected with the transmission input shaft via an input transmission stage which is formed as a simple planetary gearset and has a high gear ratio.
149 MULTI-SPEED TRANSMISSION WITH PLANETARY AND LAYSHAFT GEARS US12954930 2010-11-29 US20110245028A1 2011-10-06 Alexander Filippovich Kraynev; Vladimir Konstantinovich Astashev; Konstantin Borisovich Salamandra; Madhusudan Raghavan
A transmission includes a coaxial input member, output member, intermediate member, and simple planetary gear set. A first and a second layshaft are arranged to define a second and a third axis of rotation, respectively. The transmission has five sets of intermeshing gears, some of which are arranged to transfer torque from the input member to the layshafts, and others of which are arranged to transfer torque from the layshafts to one of the intermediate member and the simple planetary gear set. The transmission has eight torque-transmitting mechanisms that are each selectively engagable to connect a different respective gear of the intermeshing sets of gears to a respective one of the layshafts or to a stationary member. The torque-transmitting mechanisms are engagable in different combinations to establish up to fourteen forward speed ratios and a reverse speed ratio between the input member and the output member.
150 MULTI-SPEED TRANSMISSION WITH PLANETARY GEAR SETS AND LAYSHAFTS US12954933 2010-11-29 US20110230299A1 2011-09-22 Alexander Filippovich Kraynev; Vladimir Konstantinovich Astashev; Konstantin Borisovich Salamandra; Madhusudan Raghavan
A transmission is provided that includes a first compound planetary gear set and a second planetary gear set. An input member, an output member and the planetary gear sets are arranged coaxially with one another to define a first axis of rotation. A first and a second layshaft are arranged coaxially with one another to define a second axis of rotation. A first set of intermeshing gears transfer torque from the input member to the first layshaft. A second set of intermeshing gears transfer torque from the second layshaft to the second planetary gear set. Seven torque-transmitting mechanisms are engagable in different combinations to establish multiple forward speed ratios and a reverse speed ratio between the input member and the output member.
151 MULTI-GROUP TRANSMISSION AND METHOD FOR CHANGING GEAR IN A MULTI-GROUP TRANSMISSION US12302094 2007-04-25 US20090107289A1 2009-04-30 Kai Borntrager
An automated multi-group standard transmission, for a utility vehicle, and a process for changing gears in the multi-group transmission. The multi-group transmission includes at least two multi-speed transmission groups arranged one after the other, such that a multitude of gears can be shifted. A transmission input shaft that can be connected to an engine, via a startup element, is associated with a first transmission group and a second transmission main shaft is associated with a second transmission group. Load shifting mechanisms produce a temporary direct connection between the transmission input shaft and the transmission main shaft such that an intermediate gear can be shifted during a gear change from an original gear into a target gear. The load shifting mechanism enables gear changes that are virtually free of interruptions in load transfer during a gear change from a lower to a higher gear, thus increasing a high operational comfort.
152 Automatic transmission US12216425 2008-07-03 US20090011893A1 2009-01-08 Hiroshi Kato; Masaaki Nishida
An automatic transmission includes an input shaft, an acceleration/deceleration output unit that is coupled to the input shaft and has a first element that selectively outputs a decelerated rotation or an accelerated rotation of the input shaft and a second element that outputs a same number of rotations as the input shaft, a multiple planetary gear set for shifting having third, fourth, fifth and sixth elements, a first clutch coupling the first element and the sixth element selectively, a second clutch coupling the input shaft and the fourth element selectively, a third clutch coupling the first element and the third element selectively, a fourth clutch coupling the second element and the third element selectively, a first brake fixing the third element selectively, a second brake fixing the fourth element selectively and an output shaft coupled directly to the fifth element.
153 Transmission for tractor US12068997 2008-02-14 US20080282823A1 2008-11-20 Hyo-jung Kim; Hyung-tai Kim; Sang-heon Lee
A transmission for a tractor has an input shaft receiving power from an engine, an idle shaft disposed parallel with the input shaft, an output shaft disposed parallel with the idle shaft and transmitting power to a main transmission part, forward/reverse driving gears installed on the input shaft so as to rotate idle, a forward/reverse clutch installed between the forward driving gear and the reverse driving gear to selectively connect the forward driving gear or the reverse driving gear to the input shaft, a forward driven gear installed on the idle shaft and engaged with the forward driving gear, a reverse driven gear installed on the idle shaft and engaged with the reverse driving gear, high speed/low speed driving gears installed between the forward driven gear and the reverse driven gear so as to rotate idle, a high speed/low speed clutch installed between the high speed driving gear and the low speed driving gear to selectively connect the high speed driving gear or the low speed driving gear to the idle shaft, and high speed/low speed driven gears installed on the output shaft and engaged with the high speed driving gear and the low speed driving gear, respectively.
154 Planetary manual transmission US10976054 2004-10-28 US07128682B2 2006-10-31 Raymond J. Haka
A mechanical clutch-controlled planetary transmission employs three planetary gearsets and seven synchronizer clutches to establish fifteen forward speed ratios and seven reverse speed ratios between a transmission input shaft and a transmission output shaft. Two of the planetary gearsets each provide three forward speed ratios including two underdrives and a direct drive, and a third of the planetary gearsets provides a reverse speed ratio, an underdrive speed ratio, a direct speed ratio, and an overdrive speed ratio.
155 Planetary transmissions having two fixed interconnections and a stationary gear member US10940539 2004-09-14 US07104914B2 2006-09-12 Norman K. Bucknor; Patrick B. Usoro; Madhusudan Raghavan
The family of transmissions has a plurality of members that can be utilized in powertrains to provide at least eight forward speed ratios and one reverse speed ratio. The transmission family members include three planetary gear sets having seven torque-transmitting mechanisms, two interconnecting members, and a grounded planetary gear member. The powertrain includes an engine that is selectively connectable to at least one of the planetary gear members and an output member that is continuously connected with another one of the planetary gear members. The seven torque-transmitting mechanisms provide interconnections between various gear members, the input shaft and the transmission housing, and are operated in combinations of three to establish at least eight forward speed ratios and at least one reverse speed ratio.
156 Wide ratio transmissions having a stationary planetary member and at least four clutches US10861183 2004-06-04 US07094173B2 2006-08-22 Madhusudan Raghavan; Norman K. Bucknor; Patrick B. Usoro
The family of transmissions has a plurality of members that can be utilized in powertrains to provide at least eight forward speed ratios and one reverse speed ratio. The transmission family members include three planetary gear sets having seven torque-transmitting mechanisms, a fixed interconnection and a stationary (grounded) member. The powertrain includes an engine and torque converter that is continuously connected to at least one of the planetary gear members and an output member that is continuously connected with another one of the planetary gear members. The seven torque-transmitting mechanisms provide interconnections between various gear members and with the transmission housing, and are operated in combinations of three to establish at least eight forward speed ratios and at least one reverse speed ratio.
157 Wide ratio transmissions with two fixed interconnecting members and at least three clutches US10861633 2004-06-04 US07086986B2 2006-08-08 Madhusudan Raghavan; Norman K. Bucknor; Patrick B. Usoro
The family of transmissions has a plurality of members that can be utilized in powertrains to provide at least eight forward speed ratios and one reverse speed ratio. The transmission family members include three planetary gear sets having seven torque-transmitting mechanisms and two fixed interconnections. The powertrain includes an engine and torque converter that is continuously connected to at least one of the planetary gear members and an output member that is continuously connected with another one of the planetary gear members. The seven torque-transmitting mechanisms provide interconnections between various gear members and with the transmission housing, and are operated in combinations of three to establish at least eight forward speed ratios and at least one reverse speed ratio.
158 Planetary transmissions having three gear sets and input clutches US10921237 2004-08-18 US07074153B2 2006-07-11 Patrick B. Usoro; Madhusudan Raghavan; Norman K. Bucknor
The family of transmissions has a plurality of members that can be utilized in powertrains to provide at least eight forward speed ratios and one reverse speed ratio. The transmission family members include three planetary gear sets having seven torque-transmitting mechanisms and two fixed interconnecting members. The powertrain includes an engine that is selectively connectable to at least one of the planetary gear members and an output member that is continuously connected with another one of the planetary gear members. The seven torque-transmitting mechanisms provide interconnections between various gear members, the input shaft and the transmission housing, and are operated in combinations of four to establish at least eight forward speed ratios and at least one reverse speed ratio.
159 Planetary transmissions having a stationary member and at least two input clutches US10897668 2004-07-23 US07066861B2 2006-06-27 Norman K. Bucknor; Patrick B. Usoro; Madhusudan Raghavan
The family of transmissions has a plurality of members that can be utilized in powertrains to provide at least eight forward speed ratios and one reverse speed ratio. The transmission family members include three planetary gear sets having seven torque-transmitting mechanisms, an interconnecting member, and a grounded planetary gear member. The powertrain includes an engine that is selectively connectable to at least one of the planetary gear members and an output member that is continuously connected with another one of the planetary gear members. The seven torque-transmitting mechanisms provide interconnections between various gear members, the input shaft and the transmission housing, and are operated in combinations of four to establish at least eight forward speed ratios and at least one reverse speed ratio.
160 Wide ratio transmissions with a fixed interconnecting member and a stationary planetary member US10843080 2004-05-10 US07059994B2 2006-06-13 Patrick B. Usoro; Madhusdan Raghavan; Norman K. Bucknor
The family of transmissions has a plurality of members that can be utilized in powertrains to provide at least eight forward speed ratios and one reverse speed ratio. The transmission family members include three planetary gear sets having seven torque-transmitting mechanisms and a fixed interconnecting member. The powertrain includes an engine and torque converter that is continuously connected to at least one of the planetary gear members and an output member that is continuously connected with another one of the planetary gear members. The seven torque-transmitting mechanisms provide interconnections between various gear members and the transmission housing, and are operated in combinations of three to establish at least eight forward speed ratios and at least one reverse speed ratio.
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