Planetary gear transmission systems or components inventions 06/06

20060142104 - Vehicle drive and a control method for a vehicle drive: To avoid dissipation of reactive power the drive includes a shift gear (F) which has at least two input shafts (2, 3) each connected to at least one transmission step. Each of the at least two input shafts (2, 3) is in driving condition via a clutch (K1,K2) with a...

20060142105 - Speed reducer for walk assist apparatus: A reduction gear (49) for a walking assistance system is provided that includes first to third planetary gear mechanisms (P1 to P3) between an input shaft (Si) connected to a motor (48) and an output shaft (So), the second planetary gear mechanism (P2) being disposed radially outside the first planetary...

20060142107 - Hydraulic control apparatus: A hydraulic passage 148A is formed for bleeding off in the compensation valve, wherein the bleeding off is selectively conducted in accordance with a state of operation in the hydraulic circuit, in a way that in case of relatively small demand for the flow rate in the hydraulic circuit, such...

20060142106 - Swap shift control: An automatic transmission for a vehicle includes an input shaft, an output shaft, a first and second plurality of gears, and a series of engagement elements. The series of engagement elements includes at least one overrunning engagement element in mechanical communication with the second plurality of gears. A controller is...

20060142108 - Torque vectoring drive axle assembly: A drive axle assembly includes first and second axleshafts connected to a pair of wheels and a drive mechanism operable to selectively couple a driven input shaft to one or both of the axleshafts. The drive mechanism includes a differential, a speed changing unit operably disposed between the differential assembly...

20060142109 - Power transfer device with overrunning mode clutch: A controllable, multi-mode, bi-directional overrunning mode clutch and a shift system adapted for use in a power transfer assembly for transferring drive torque from a primary driveline to a secondary driveline so as to establish a four-wheel drive mode. The mode clutch includes a first ring journalled on a first...

20060142110 - Continuously variable ratio transmission system: A multi-regime continuously variable ratio transmission system has coaxial system input and output shafts (16, 24), a continously variable ratio transmission unit (V) connected coaxially to the system input shaft (16) and having a coaxial variator output shaft (18) and a mixing epicyclic gear train (E1) having an input sun...

20060142111 - Powertrain of an automatic transmission: A compound planetary gear set is designed to have first and second planetary gear sets gear-meshed with each other and respectively disposed on primary and secondary input shafts, and multi-stage shifting is realized by operating operational members of such a compound planetary gear set according to a predetermined operational chart....

20060142112 - Multi-speed transmission for vehicle: A transmission can be provided which achieves multiple speeds while maintaining good balance of gear ratio steps between gears by having a first clutch which selectively connects a first intermediate output member and a fourth rotating element RE4 together, a second clutch which selectively connects an input shaft and a...

20060142113 - Planetary gear train transmission: A planetary gear train transmission comprising: an outer case fitted with a ring gear having internal teeth; at least one outlet planet carrier having planet gears meshing with said ring gear, and with a central, sun gear; an inlet gear and an inlet bearing provided in the case; and an...

20060142114 - Epicyclic gear systems: An epicyclic gear system (A, B), which is highly compact, yet capable of transferring substantial torque, includes a sun gear (2, 62), a ring gear (4, 64) around the sun gear, and planet gears (6, 8, 66, 68) organized in two rows between the sun and ring gears. In addition,...

20060135307 - Powertrain arrangement for a skid-steer vehicle: A powertrain arrangement for selectively operating a vehicle in a skid-steer configuration is provided. The arrangement includes an engine coupled to a differential. A first torque transfer mechanism is coupled to a coupling mechanism and arranged to drive a first set of wheels on a side of the vehicle orientated...

20060135308 - Differential for motor vehicles with device for locking thereof: A differential for motor vehicles installed between two half-shafts on which two drive wheels are keyed includes a box driven by the engine by a connecting element which causes it to rotate about axes of the half-shafts, on free ends of the latter there being keyed two bevel gears housed...

20060135309 - Six-speed powertrain of an automatic transmission: Six forward speeds and one reverse speed may be realized with minimized length and weight of the transmission by employing two single pinion planetary gear sets and a double pinion planetary gear set. One planetary gear of the double pinion planetary gear set is interconnected with an adjacent second planetary...

20060135310 - Six-speed powertrain of automatic transmission: A six-speed powertrain of an automatic transmission is formed by combining three simple planetary gear sets, and an output element is realized as a single element without combination with a clutch. Therefore, because a torque load of a respective clutch is reduced, durability may be enhanced and a length of...

20060135311 - Toroidal transmission: A method is provided for optimally engineering a toroidal transmission having a desired input/output ratio to implement the desired ratio of the transmission while meeting the torque and efficiency requirements of the design. Nanoparticle technology is used to manufacture the stator walls to replace the cutting and milling procedures now...

20060135312 - Planetary gear apparatus: A planetary gear apparatus whose gears are all constituted by continuous shifted gears. A backlash between the input sun gear and each of the input side planetary gears is adjusted by pressing a second carrier plate supporting each integrated pair of the input side planetary gears and the output side...

20060128513 - Powertrain with electrically variable transmission providing improved gradeability: A powertrain includes an engine with an engine output member and a transmission with two motor/generators and a transmission input member operatively connected to the engine output member. A control unit is configured to selectively cause a device to resist or prevent rotation of the input member in response to...

20060128514 - Modular transmission unit, in particular multistage transmission: The invention concerns a modular transmission unit, in particular multistage transmission, comprising the following components: a box input and output; two superimposed gears as planetary gears with three shafts each including a sun wheel, a hollow wheel, a spacer and planetary wheels, each shaft equipped with solar wheels, hollow wheels,...

20060128515 - Two-speed transfer case: A transfer case includes a two-speed range unit, a mode clutch, an actuation mechanism and a control system. The actuation mechanism includes an electric motor, an actuator shaft driven by the motor, a range actuator assembly and a mode actuator assembly. The range actuator assembly includes range, a cam driven...

20060128516 - Helical gear differential: An axle assembly that includes a differential casing, which is rotatable about an axis, a pair of side gears that are disposed within the differential casing, a spacer and a cross pin. The spacer is disposed between the side gears. The cross pin is fixed to the differential casing and...

20060128517 - Multi-stage automatic transmission with three planetary gearwheel assemblies: A multi-stage automatic transmission comprises a drive input shaft (AN), a drive output shaft (AB), three planetary gearwheel assemblies (RS1, RS2, RS3) arranged next to one another in series and five shift control elements (A to E). A sun gearwheel (SO3) of the third planetary gearwheel assembly (RS3) can be...

20060128518 - Planetary transmissions having four interconnecting members and clutched input members: 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 four interconnecting members. The powertrain includes an engine...

20060128519 - Transmission having multiple ratio planetary gear unit in series with an auxiliary gear unit: A multiple ratio transmission having a planetary primary gear unit producing forward ratios and a reverse ratio, and a planetary auxiliary gear unit in series with the primary gear unit producing a direct drive ratio and either an underdrive ratio or an overdrive ratio. The transmission produces six or seven...

20060116231 - Transmission arrangements for hybrid electric vehicles: A geared, power transmission mechanism for a hybrid electric vehicle wherein multiple power flow paths are established between an engine and vehicle traction wheels and between an electric motor and the vehicle traction wheels. At least one of the power flow paths is characterized by at least two ratios....

20060116232 - Manually adjustable clutch assembly with visual indicator: A manual adjustment mechanism for a clutch is provided wherein an adjusting gear rotates an adjusting ring relative to a pressure plate that are interconnected by means of an inclined surface or a threaded surface. The adjustment gear is mounted on a shaft and is rotated manually. An externally visible...

20060116233 - Electric drive axle: An electric drive axle, which is located between and powers the left and right drive wheels of an automotive vehicle, includes an electric motor and left and right torque couplings. Torque developed by the motor transfers through the torque couplings to axle shafts which are connected to the drive wheels....

20060116234 - Gearbox for motor vehicles: Method and arrangement for providing a range gearbox with planetary gear (1) for motor vehicles, intended to be connected to the output side of a basic gearbox. The ring gear (18) of the planetary gear is axially displaceable. The ring gear (18) can engage coupling rings (10, 16) alternatively. A...