| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 61 | Multi-speed transmission | US13817347 | 2011-08-17 | US08689655B2 | 2014-04-08 | Roberto Diani; Paolo Neri; Fabio Belletti |
| A multi-speed transmission for a motor vehicle, in particular for a sports car, has several forward speeds and a reverse speed, an input or primary shaft, a first output or secondary shaft for driving a first drive shaft leading to an axle differential, and a second output shaft or tertiary shaft for driving a second drive shaft leading to another axle differential. The first output or secondary shaft and the second output or tertiary shaft carry two meshing fixed gears. The fixed gear on the first output or secondary shaft meshes with an idle gear on the input or primary shaft. In one of the forward speeds the idle gear coupled in a rotationally restrained manner with the input or primary shaft directly drives the fixed gear on the first output or secondary shaft. | ||||||
| 62 | MULTI-SPEED TRANSAXLE FOR ELECTRIC AND HYBRID VEHICLE APPLICATION | US13996774 | 2011-12-14 | US20140051538A1 | 2014-02-20 | David W. Wenthen; John R. Forsyth |
| An electric drive module for transferring torque to wheels of a motor vehicle a planetary gearset having a first member driven by the rotor and a second member. A synchronizer restricts a third member of the planetary gearset from rotation when the electric drive module operates at a first drive ratio. The synchronizer transfers energy from the rotating rotor to the third member during a shift between the first drive ratio and a second drive ratio to match the rotational speeds of the rotor and the second member. A reduction unit includes an input member being driven by the second member and also includes an output member driven at a reduced speed relative to the input member. A differential assembly includes an input driven by the output member, a first differential output driving a first output shaft, and a second differential output driving a second output shaft. | ||||||
| 63 | DISCONNECTING REAR DRIVE AXLE FOR LONGITUDINALLY ARRANGED POWERTRAINS | US13395209 | 2010-12-08 | US20120238394A1 | 2012-09-20 | Paul J. Valente; James P. Downs |
| A powertrain with a disconnecting rear drive axle generally includes a prime mover including an output that rotates about a rotational axis. A transmission includes an output that rotates about a rotational axis. The rotational axes of the outputs are substantially parallel to a longitudinal axis of the powertrain. A front driveline is operable to direct rotary power from the prime mover to front vehicle wheels. A rear driveline includes a propeller shaft that provides rotary power to a first shaft member and a second shaft member through a pinion and a ring gear. The first shaft member and the second shaft are operable to connect to rear vehicle wheels. A power switching mechanism has an engaged condition and a disengaged condition. The power switching mechanism is operable to direct the rotary power from the transmission to the rear driveline in the engaged condition. A torque transfer device has an engaged condition and a disengaged condition. The power switching mechanism and the torque transfer device in the disengaged condition are operable to only transmit rotary power to the first vehicle wheels. The torque transfer device in the disengaged condition prevents the first shaft member and the second shaft member from back-driving the ring gear and the pinion of the rear driveline. The power switching mechanism in the disengaged condition prevents the transmission from driving the propeller shaft. | ||||||
| 64 | VEHICLE POWER TRANSMISSION DEVICE | US13139914 | 2008-12-15 | US20110314960A1 | 2011-12-29 | Takahiro Yoshimura |
| A vehicle power transmission device includes: a power generation device that includes a rotating machine electrically controllable in torque; and a power distribution device including three rotating elements, which are an input rotating element, a first output rotating element operatively coupled to a first wheel, and a second output rotating element operatively coupled to a second wheel, the power distribution device distributing power input to the input rotating element from the power generation device to the first output rotating element and the second output rotating element, the power distribution device being configured such that the input rotating element, the first output rotating element, and the second output rotating element are arranged in this order from one end to the other end on a collinear diagram capable of representing the rotation speeds of the three rotating elements on a straight line, the operation state of the rotating machine being controlled to put the first output rotating element and the second output rotating element into a predetermined differential sate, and the power generation device including: an electric type differential portion with the rotating machine coupled to a differential mechanism in a power transmittable manner to control a differential state between a rotation speed of a differential input member and a rotation speed of a differential output member by controlling the operation state of the rotating machine; and a power source coupled to the differential input member in a power transmittable manner. | ||||||
| 65 | Hybrid powertrain and dual clutch transmission | US12351544 | 2009-01-09 | US08070649B2 | 2011-12-06 | Alan G. Holmes |
| An automatic dual clutch transmission includes an input clutch which selectively connects a prime mover to an electric motor. The electric motor, in turn, is connected to the inputs of a pair of coaxial friction clutches. Each of the coaxial outputs of the friction clutches drives an input gear with meshes with a pair of gears, one of which is associated with each of a respective pair of layshafts or countershafts. On each countershaft, between the pair of gears driven by the outputs of the two clutches, are a pair of synchronizer clutches which selectively synchronize and connect one of the two gears to the associated countershaft. A similar arrangement of a second pair of gears separated by synchronizer clutches connects the countershafts through a selected gear to a pair of output gears coupled to and driving a differential cage or spool. | ||||||
| 66 | CONTROL APPARATUS FOR FOUR-WHEEL DRIVE VEHICLE, FOUR-WHEEL DRIVE VEHICLE, AND CONTROL METHOD | US13104068 | 2011-05-10 | US20110271781A1 | 2011-11-10 | Koji TAKAIRA |
| When a count value concerning with the travel of the vehicle in a two-wheel drive state reaches or exceeds a predetermined value, the state of drive in a transfer is temporarily switched to a four-wheel drive state by connecting a synchromesh mechanism while keeping a mesh clutch disconnected, so that rotary members that do not rotate during the two-wheel drive state, such as a second output shaft, are temporarily rotated. Thus, the rotary members are restrained from remaining in contact at fixed portions and therefore being partially worn. Besides, there is no need to provide a mechanism for temporarily rotating the rotary members, such as the second output shaft, separately from the synchromesh mechanism that is normally provided for the four-wheel drive travel in the related art. Therefore, it is possible to improve durability without involving cost increase, space efficiency deterioration, etc. | ||||||
| 67 | Gear box apparatus | US11895672 | 2007-08-27 | US08011274B2 | 2011-09-06 | Vladimir Abramov |
| A motorized machine with a “mutually definite units of energy for forced energy economy” (MDUFEE) gearbox family with a simplified shifting pattern of shifting mechanisms to cause a real gear dependence on mechanical inertia created by the weight of a load and a fast changeable resistant force in response to the movement. Each gearbox includes a sufficient number of gearsets with gear ratios selected from a faltering geometric sequence and arranged to provide a sufficient number of torques and overdrive speeds to the output shaft to satisfactorily operate the machine over a conventional range of machine speeds and at least limit the use of the acceleration system in the motor to reduce the heat and power generated from a the motor to less than 50 percent that used to generate a similar conventional range of machine speeds using a motor with a conventional gear box. | ||||||
| 68 | FOUR WHEEL DRIVE POWERTRAIN | US12594068 | 2008-04-02 | US20100101366A1 | 2010-04-29 | Thomas E. Braford |
| An arrangement 7 of a powertrain for a four wheel drive vehicle with a dual clutch transmission is provided including a longitudinal mounted engine 10 with an output shaft 13 extending rearward from the engine 10, a dual clutch transmission 30 having inner and outer geared input shafts 50, 40 generally coaxial with the engine output shaft 13; an output shaft 80 having a plurality output gears operatively associated with gears of the input shafts 50, 40, a clutch module 20 connected with the transmission 30, the clutch module mounting a dual clutch assembly 14 for selectively connecting the inner and outer input shafts 50, 40 with the engine output shaft 13. A rear differential 40 is powered from a rear end of the output shaft 80 and a front differential 120 is powered from a front end of the output shaft 80. | ||||||
| 69 | DUAL CLUTCH MULTI-SPEED TRANSAXLE | US12491376 | 2009-06-25 | US20100004088A1 | 2010-01-07 | David W. WENTHEN |
| A transaxle transfers torque to first and second axle shafts. The transaxle includes a main shaft, a planetary gearset, a first clutch transferring torque between the main shaft and a first member of the planetary gearset and a second clutch transferring torque between the main shaft and a second member of the planetary gearset. An input shaft is fixed for rotation with the first member of the planetary gearset. A countershaft is selectively driven by first, second, third and fourth speed gearsets associated with the input shaft. A final drive unit provides multiplied torque to a differential assembly adapted to drive the first and second axle shafts. Actuation of the first and second clutches selectively provides first through eighth discrete forward drive ratios such that each of the first, second, third and fourth speed gearsets transfers torque during provision of two of the first through eighth forward drive ratios. | ||||||
| 70 | Four-wheel drive vehicle transmission | US10492873 | 2002-10-15 | US07578762B2 | 2009-08-25 | Franco Cimatti; Carlo Neri |
| A four-wheel-drive vehicle transmission (1) having a drive torque input shaft (8) rotated about a first axis of rotation (A); a front output shaft (10); a rear output shaft (12); an auxiliary tubular shaft (14) mounted alongside the input shaft (8) to rotate about a second axis of rotation (D); at least one first group of gears (15, 16) for selectively connecting the auxiliary tubular shaft (14) to the input shaft (8); a first countershaft (17) mounted inside the auxiliary tubular shaft (14); a second countershaft (18) mounted for rotation opposite the first countershaft (17); a planetary gear train (19) for mechanically connecting the auxiliary tubular shaft (14) to the first (17) and second (18) countershafts; and a first (25) and a second (26) cascade gear set for connecting the first and second countershafts (17,18) to the front and rear output shafts (10,12), respectively. | ||||||
| 71 | Vehicle Transmission | US12178119 | 2008-07-23 | US20090025496A1 | 2009-01-29 | Leonard Earp; David Allan Wozencraft |
| An automatic powershift vehicle transmission comprising an input shaft; an output shaft; first and second intermediate shafts parallel to the input shaft; a lay shaft parallel to the output shaft; gearing providing first, second, third and fourth forward driving paths from the input shaft to the output shaft; a first clutch and a second clutch between the ends of the input shaft to establish driving connections; a third clutch for establishing the first or third forward driving path when the first clutch is operative; and a fourth clutch for establishing the second or fourth forward driving path when the second clutch is operative. | ||||||
| 72 | Gear box apparatus | US11895672 | 2007-08-27 | US20080047380A1 | 2008-02-28 | Vladimir Abramov |
| A “mutually definite units of energy for forced energy economy” (MDUFEE) gearbox family has simplified the shifting pattern of shifting mechanisms to cause a real gear dependence on mechanical inertia created by the weight of a load and a fast changeable resistant force in response to the movement. This gearbox is able to operate in a manual, semi-automatic or automatic regime. Each family of designs produces torques and overdrive speeds in a faltering geometric sequence that significantly reduces the power that a motorized vehicle or craft or machine tool needs of a power source from a ratio of highest revolution of its shaft to idle revolution. This is achieved by using the unique function to keep highest torque of power source shaft within its work process. Therefore, an existing power source could be replaced by power source with substantially reduced power when gearbox of a MDUFEE gearbox family has replaced an existing gearbox. Also, the new gearbox substantially limits or eliminates the need for conventional acceleration systems to control speed produced by power source for maximizing the reduced energy consumption, emission and wear of power source. In addition, the greater degree of control of power usage with a compound MDUFEE gearbox family leads to a dramatic increase in the maneuvering capability of a motorized object on land, water or air. | ||||||
| 73 | Double clutch transmission | US11346481 | 2006-02-02 | US20060169076A1 | 2006-08-03 | Gerhard Gumpoltsberger; Jens Patzner |
| 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 idler gears that are mounted or rotatably supported on the shafts, and with shifting units that are allocated to the idler gears, with which the idler gears can be non-rotatably connected to the properly allocated shaft for the purpose of realizing gear ratio. To allow a more cost-effective production of this type of transmission, the fixed gears for the reverse gear and first gear are arranged axially directly in front each other on the same transmission input shaft, or that the fixed gears for the reverse gear and for the first gear are designed as a single common fixed gear. | ||||||
| 74 | Differential apparatus | US10800868 | 2004-03-16 | US20040185982A1 | 2004-09-23 | Yoshinobu Yamazaki; Mamoru Murakami |
| A differential apparatus having a limited slip differential mechanism which comprises a differential case, a pair of side gears housed in the differential case and connected to driving shafts, and pinion gears meshing with the pair of side gears. One of the tooth surfaces of each tooth of the side gears and the pinion gears has a large pressure angle and the other surface has a small pressure angle, such that meshing reaction forces Dr in a drive mode is larger than that of Co in a coast mode to obtain different limiting forces. | ||||||
| 75 | Automatic transmission | US10158912 | 2002-06-03 | US06655226B2 | 2003-12-02 | Masami Oguri |
| An automatic transmission for a vehicle having a plurality of gear trains provided between an input shaft and an output shaft, comprises a hollow shaft coaxially including the input shaft, a forward drive gear rotatably mounted on the hollow shaft, a forward driven gear integrally mounted on the output shaft and constantly meshing with the forward drive gear, a reverse drive gear rotatably mounted on the input shaft, a changeover hub integrally mounted on the hollow shaft between the forward drive gear and the reverse drive gear, an first idler gear constantly meshing with the reverse drive gear, a second idler gear integrally formed with the first idler gear and constantly meshing with the forward driven gear and a changeover member provided between the forward gear and the reverse drive gear for engaging the changeover hub either with the forward drive gear or the reverse drive gear. | ||||||
| 76 | Driving force distributing structure for four wheel drive vehicle | US09735644 | 2000-12-14 | US06557439B2 | 2003-05-06 | Tetsuya Ohtani; Tadayasu Sanpe; Nobuo Takemasa; Takashi Hotta |
| In a transmission in which transmission mechanisms (1st speed, 2nd speed, 3rd speed and reverse transmission mechanisms 11, 12, 13, 14) are disposed between transmission input and output shafts 1, 2 which are parallel with each other, a structure in which a driving force is distributed from the output shaft 2 for transmission to front and rear wheels of a vehicle comprising an intermediate rear wheel driving gear 32 rotatably disposed on the input shaft 1, a front wheel side driving gear 3a fixed to the output shaft for transmitting the driving force to the front wheels, a first rear wheel driving gear 31 fixed to the output shaft so as to mesh with the intermediate gear and a second rear wheel driving gear 33 rotatably disposed on a rear wheel driving rotating shaft 35 which is parallel with the input shaft and adapted to mesh with the intermediate rear wheel driving gear so as to transmit the driving force to the rear wheels. | ||||||
| 77 | Automatic transmission | US10158912 | 2002-06-03 | US20020178856A1 | 2002-12-05 | Masami Oguri |
| An automatic transmission for a vehicle having a plurality of gear trains provided between an input shaft and an output shaft, comprises a hollow shaft coaxially including the input shaft, a particular forward drive gear rotatably mounted on the hollow shaft, a forward driven gear integrally mounted on the output shaft and constantly meshing with the forward drive gear, a reverse drive gear rotatably mounted on the input shaft adjacently to the forward drive gear, a friction clutch provided between the input shaft and the hollow shaft for selectively transmitting power from the input shaft to the hollow shaft, a changeover hub integrally mounted on the hollow shaft between the particular forward drive gear and the reverse drive gear, an first idler gear constantly meshing with the reverse drive gear, a second idler gear integrally formed with the first idler gear and constantly meshing with the forward driven gear and a changeover member provided between the particular forward gear and the reverse drive gear for engaging the changeover hub either with the particular forward drive gear or the reverse drive gear. | ||||||
| 78 | Torque distribution control system for a four-wheel drive motor vehicle | US541768 | 1990-06-21 | US5071396A | 1991-12-10 | Toshio Kobayashi |
| A central differential comprising a planetary gear device is coaxially mounted on one of the axles of a motor vehicle. The planetary gear device comprises a first sun gear connected to an output shaft of a transmission, a carrier, first and second planetary pinions integral with each other and rotatably supported on the carrier, and a second sun gear. The first planetary pinion is engaged with the first sun gear, and the second planetary pinion is engaged with the second sun gear. A fluid-operated multiple-disk clutch is disposed so as to restrict the differential operation of the planetary gear device. | ||||||
| 79 | Torque distribution control system for a four-wheel drive motor vehicle | US485092 | 1990-02-23 | US5066268A | 1991-11-19 | Toshio Kobayashi |
| A system for controlling torque distributed to front wheels and rear wheels of a motor vehicle. A planetary gear device including a first sun gear connected to an output shaft of a manual transmission, first and second planet pinions integral with each other, a carrier provided to rotatably support the pinions and operatively connected to the front wheels, and a second sun gear operatively connected to the rear wheels is disposed to distribute the torque to front wheels and rear wheels. The first planetary pinion is engaged with the first sun gear, and the second planetary pinion is engaged with the second sun gear. A fluid operated multiple-disk clutch selectively connects two of the first sun gear, the carrier and the second sun gear so as to restrict the differential operation of the planetary gear device. | ||||||
| 80 | Transmission for working vehicle having overtop drive | US928561 | 1986-11-10 | US4750580A | 1988-06-14 | Tomeo Umemoto |
| A transmission system for a vehicle comprising a main transmission, a bypass transmission line, an auxiliary transmission, and a rear wheel drive line. The main transmission includes a multistep change speed mechanism, a first output gear for outputting a maximum speed provided by the multistep change speed mechanism, and a second output gear for outputting other speeds provided by the multistep change speed mechanism. The bypass transmission line is operatively connected to the first output gear, and the auxiliary transmission is operatively connected to the second output gear. The rear wheel drive line is operatively connected to the bypass transmission line and to the auxiliary transmission. The first output gear, bypass transmission line and front wheel drive line constitute an overtop drive transmission line. | ||||||
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