Planetary gear transmission systems or components inventions 03/07

20070072724 - Multi-mode electrically variable transmissions having two planetary gear sets with one fixed interconnection and clutched input: The electrically variable transmission family of the present invention provides low-content, low-cost electrically variable transmission mechanisms including first and second differential gear sets, a battery, two electric machines serving interchangeably as motors or generators, five selectable torque-transfer devices, and a dog clutch. The selectable torque transfer devices are engaged singly... Agent: General Motors Corporation Legal Staff

20070072725 - Multi-mode electrically variable transmissions having two planetary gear sets with two fixed interconnections and clutched input: The electrically variable transmission family of the present invention provides low-content, low-cost electrically variable transmission mechanisms including first and second differential gear sets, a battery, two electric machines serving interchangeably as motors or generators, and up to five selectable torque-transfer devices, and a dog clutch. The selectable torque transfer devices... Agent: General Motors Corporation Legal Staff

20070072723 - Powertrain with series electric launch and electric power assisted performance: A powertrain includes an engine with an engine output member, such as a crankshaft, and a first motor/generator having a first rotor connected to the crankshaft for rotation therewith. A transmission includes a transmission input member, a transmission output member, and a differential gearing arrangement selectively operatively connecting the transmission... Agent: General Motors Corporation Legal Staff

20070072726 - Transmission control unit having pressure transducer package: Pressure transducers are incorporated as part of a transmission control unit TCU rather than placed in a remote location. This configuration eliminates the need to link the pressure transducers to the TCU via a long electrical connection, thereby shortening the signal path of the low-level signals output from the pressure... Agent: Anna M. Shih

20070072727 - Speed reducer, production method for speed reducer, roller bearing, crankshaft and production method for crank shaft: A speed reducer has a crankshaft to be rotated in conjunction with a drive unit. First through third eccentric portions are provided on the crankshaft. First through third externally-toothed gears are adapted to be moved respectively in conjunction with the first through third eccentric portions. Pin teeth are disposed along... Agent: Casella & Hespos

20070072728 - Hydrostatic transmission and power train for vehicle: A hydrostatic transmission for vehicle interposed in a drive-power transmission path between a driving power source and a driving axle for non-stepwisely changing the speed of the vehicle includes an HST housing; a hydraulic pump unit having a pump shaft with first and second ends extending in a fore-aft direction... Agent: Sterne, Kessler, Goldstein & Fox PLLC

20070072729 - Drive axle for a light vehicle: A drive axle for a light vehicle having a chain drive and a differential is provided, wherein the axle pinion gears (11, 12) are connected to their half-axles (6, 7) in one piece and to the vehicle via fixed bearings (8, 8′). One of the half-axles (6) is made as... Agent: Harness Dickey And Pierce

20070072730 - Seven-speed powertrain of an automatic transmission for vehicles: A seven-speed powertrain of an automatic transmission includes an input shaft; an output shaft disposed in-parallel with the input shaft; a primary shift portion including a compound planetary gear set having four operational elements and a first simple planetary gear set having three operational elements; a secondary shift portion including... Agent: Morgan, Lewis & Bockius LLP (sf)

20070072731 - Multi-speed power transmission: A powertrain incorporates a multi-speed planetary transmission having four planetary gearsets and seven torque-transmitting mechanisms. The planetary gearsets are interconnected and controlled by the torque-transmitting mechanisms in combinations of two, such that eight forward speeds and three reverse speeds are developed between an input shaft and an output shaft of... Agent: General Motors Corporation Legal Staff

20070072732 - Nine speed automatic transmission with six torque-transmitting mechanisms: A multi-speed transmission that achieves nine forward speed ratios and a reverse speed ratio has two planetary gear sets and a plurality of intermeshing gear members which may consist of two additional planetary gear sets or gear members arranged in a countershaft design. A speed ratio of an equal value... Agent: General Motors Corporation Legal Staff

20070072733 - Seven speed transmissions with all positive rotation components in forward speeds: Seven speed transmissions are provided that include four planetary gear sets having six torque-transmitting mechanisms with various fixed interconnections to provide seven forward speed ratios and three reverse speed ratios. The powertrain includes an engine and torque converter that is continuously connected to at least one of the planetary gear... Agent: General Motors Corporation Legal Staff

20070072734 - Six speed transmission with a single carrier: A six speed transmission is provided that includes three planetary gear sets having a common carrier member and six torque-transmitting mechanisms operated in combinations of two to provide at least six forward speed ratios and two reverse speed ratios. A method of assembling a transmission is also provided. A reduction... Agent: General Motors Corporation Legal Staff

20070072735 - Power transmission lubrication system: A planetary transmission includes a plurality of planetary gearsets. The planetary gearsets have a lubrication system comprised of pinion pins secured in side plates and central passages located within the pinion pins. The central passages or cavities have radially outwardly disposed fluid passages, which supply fluid lubrication to support bearings... Agent: General Motors Corporation Legal Staff

20070066432 - One-mode input-split electro-mechanical transmission with two fixed speed ratios: A one-mode, input-split electrically variable transmission is provided with two motor/generators and a torque-transmitting mechanism that is operatively connected to a second member of a first differential gear set and selectively engageable to connect the second member of the first differential gear set with the stationary member, thereby establishing a... Agent: General Motors Corporation Legal Staff

20070066433 - Speed monitoring device: A device for redundant speed monitoring of a synchronous motor, which is sine-commutated without the use of sensors and which has a permanently magnetically excited rotor, has a first control unit, a drive output stage, a plurality of drive phases, and a second control unit for monitoring an electrical value... Agent: Abelman, Frayne & Schwab

20070066434 - Power transmission system for working vehicle: A power transmission system for a working vehicle comprises: a vehicle frame; a prime mover mounted on the vehicle frame; a pair of left and right drive wheels; a pair of left and right transaxles juxtaposed on the vehicle frame, wherein each of the left and right transaxles includes a... Agent: Sterne, Kessler, Goldstein & Fox PLLC

20070066435 - Oil pressure control apparatus for an automatic transmission: An oil pressure control apparatus includes: a first latch circuit for maintaining a predetermined shift valve by oil pressure outputted through a first control valve when a predetermined high shift stage is established; and a second latch circuit for maintaining a predetermined shift valve by oil pressure outputted from the... Agent: Buchanan, Ingersoll & Rooney PC

20070066436 - Torque vectoring 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... Agent: Harness, Dickey & Pierce, P.L.C

20070066438 - Drive axle for a light vehicle: A drive axle for a light vehicle includes a chain drive and a differential, which comprises a differential cage (2) with a long neck (6, 7) at both sides, balance pinion gears (13) and two axle pinion gears (16), with the axle pinion gears (16) being journaled radially and axially... Agent: Harness, Dickey & Pierce, P.L.C

20070066437 - Worm gear differential: A differential includes a carrier and worm gear assembly that cooperate to provide speed differentiation between first and second output shafts as needed. The carrier is coupled to an axle input gear, such as a ring gear for example, or a transmission shaft. The worm gear assembly includes a first... Agent: Carlson, Gaskey & Olds, P.C.

20070066439 - Positive clutch with staggered teeth height: A drive train having an axle assembly with a differential and a multi-speed transmission outputs rotary power to an input pinion of the differential. The multi-speed transmission includes a positive or dog clutch with teeth having staggered heights. The staggered tooth height configuration provides a larger effective engagement area with... Agent: Harness, Dickey & Pierce, P.L.C

20070066440 - Automatic transmission: An automatic transmission includes a first brake including first clutch plates; a pump cover defining a first receiving chamber, and a second receiving chamber receiving a planetary gear; a first cylindrical portion including splines; a second cylindrical portion located radially inside the first cylindrical portion; a first cylinder chamber formed... Agent: Foley And Lardner LLP Suite 500

20070060432 - Transmission system, in particular for a motor vehicle: A vehicle (21) comprises a drive source E that drives the wheels L via a transmission system T2. The transmission system T2 has an epicyclic gearing P with three rotational members s, a, c of which a first rotational member a is connected to the drive source E, a second... Agent: VistaIPLaw Group LLP

20070060433 - Drive unit of an adjuster in a vehicle: In a drive unit (10) of an adjuster (80) in a vehicle, having at least one particularly electronically commutated motor (12) and at least one gear stage (14) provided on the output side of the motor (12), the gear stage (14) is designed as a differential gear, which by making... Agent: Womble Carlyle Sandridge & Rice, PLLC

20070060434 - Drive train of an all-wheel drive vehicle comprising clutches and method for controlling and regulating a drive train: A power train (1) of an all-wheel drive vehicle with at least two driven vehicle axles (4, 5), with a main transmission (3) placed between a main engine (2) and the vehicle axles (4, 5), capable of displaying different conversion ratios, which has three control and adjustment frictional clutches (k_VA,... Agent: Davis & Bujold, P.l.l.c.

20070060435 - Hydraulic transaxle apparatus: A transaxle apparatus comprises: a housing; a hydrostatic transmission disposed in the housing, the hydrostatic transmission including a hydraulic pump receiving power from a prime mover, a first hydraulic motor driven in response to fluid supplied from the hydraulic pump, and a center section including an inner fluid passage for... Agent: Sterne, Kessler, Goldstein & Fox PLLC

20070060436 - Vehicle differential including pump with variable-engagement clutch: A vehicle differential assembly is provided that includes a differential driven by an input and adapted to allow differing rotational speed between a pair of outputs. The differential includes a gear assembly connected to the outputs and one or more hydraulically-actuated clutches for selectively and variably coupling the outputs. A... Agent: Dykema Gossett PLLC

20070060437 - Vehicle differential including pump with variable-engagement clutch: A vehicle differential assembly is provided that includes a differential driven by an input and adapted to allow differing rotational speed between a pair of outputs. The differential includes a gear assembly connected to the outputs and a hydraulically-actuated clutch for selectively and variably coupling the outputs. A hydraulic pump... Agent: Dykema Gossett PLLC

20070060438 - Vehicular automatic transmission: A vehicular automatic transmission is provided with a reduction planetary gear for reducing and outputting an inputted rotation of an input shaft, first and third clutches for enabling the transmission of a reduced rotation reduced through the reduction planetary gear, a planetary gear unit having second and third sun gears... Agent: Oliff & Berridge, PLC

20070060439 - Automatic transmission: In an automatic transmission (AT) in which an input shaft (Input) and an output gear (Output) are disposed on the same axis and three clutches (C1-C3) and two brakes (B1, B2) are selectively operated to provide six forward speeds, first and second planetary gear sets (GS1, GS2) are configured to... Agent: Staas & Halsey LLP

20070060440 - Speed reduction system for generating high torque: A speed reduction system includes a rotating source, a first ring gear, a first holding seat, a first gear set disposed on the first holding seat, meshed with the first ring gear and coupled to an output shaft of the rotating source, a second ring gear juxtaposed to the first... Agent: Bruce H. Troxell

20070054771 - Clutch device and differential device using the same: A clutch device 2 has a diff case 19 rotatable with drive torque, side gears 11, 13 to which the drive torque is transferred from the diff case 19, a clutch ring 63 held in constant connection to the diff case 19 and axially movable to the side gears 11,... Agent: Morrison & Foerster, LLP

20070054772 - Seven-speed powertrain of an automatic transmission for a vehicle: A seven-speed powertrain for an automatic transmission includes first, second and third single pinion planetary gear sets, each having a first gear, a ring gear, and a planet carrier as an operating member thereof. The first, the second, and the third single pinion planetary gear sets are arranged on an... Agent: Morgan, Lewis & Bockius LLP (sf)

20070049444 - Automatic vehicle gearshift transmission: An automatic gearshift transmission with a drive input shaft and a drive output, a mechanical gearshift with first and second planetary gearsets, the first planetary gearset being a single planetary gearset downstream from which is connected a double planetary gearset, with several shift elements, including clutches and brakes and with... Agent: Davis & Bujold, P.l.l.c.

20070049445 - Drive train of hybrid vehicle: A drive train (1) of a hybrid vehicle having one internal combustion engine and one transmission (3), between the internal combustion engine and the transmission (3), at least one electric machine (7) with one stator (8) and one rotor (9) is situated wherein the rotor (9) can be connected by... Agent: Davis & Bujold, P.l.l.c.

20070049443 - Electrically variable hybrid transmission and powertrain: Provided for a vehicle is an electrically variable hybrid transmission and powertrain utilizing a flywheel for energy storage. The flywheel is connected to an output shaft of the transmission and a first electric power unit through two planetary gear sets. Also provided is a second electrical power unit selectively coupled... Agent: General Motors Corporation Legal Staff

20070049440 - Electrically variable transmission having three interconnected planetary gearsets, a stationary member and a fixed input: The electrically variable transmission family of the present invention provides low-content, low-cost electrically variable transmission mechanisms including first, second and third differential gear sets, a battery, two electric machines serving interchangeably as motors or generators, and up to five selectable torque-transfer devices. The selectable torque transfer devices are engaged singly... Agent: General Motors Corporation Legal Staff

20070049442 - Multiplexed trim valve system for an electrically variable hybrid transmission: A powertrain has an electrically variable hybrid transmission having an electro-hydraulic control system, plurality of electrical power units, and a plurality of torque transmitting mechanisms selectively engageable by the electro-hydraulic control system to provide four forward speed ranges, a neutral condition, an electric low speed mode, an electrically variable low... Agent: General Motors Corporation Legal Staff

20070049441 - Parallel hybrid transmission having a single motor/generator: A reduced cost, compact parallel hybrid transmission having only a single motor/generator is provided. The transmission utilizes a reduced number of components, preferably only three interconnecting members and four torque-transmitting mechanisms, to provide a reverse speed mode and seven forward speed modes (i.e., operating states achieved by engagement of a... Agent: General Motors Corporation Legal Staff

20070049439 - Planetary drive arrangement: A drive arrangement for a work machine is disclosed. The drive arrangement has a first planetary gear set, a second planetary gear set, a third planetary gear set, a first motor, a second motor, and a third motor. The first, second, and third motors are drivingly connected to the first,... Agent: Caterpillar/finnegan, Henderson, L.L.P.

20070049447 - Hydraulic control system of 6-speed automatic transmission for vehicle: A hydraulic control system of a six-speed automatic transmission provides an enhanced overall performance by achieving precise and effective control by providing a fail-safe function in at least two ways.... Agent: Morgan, Lewis & Bockius LLP (sf)

20070049446 - Hydraulic control system of 7-speed automatic transmission for vehicle: A hydraulic control system of a seven-speed automatic transmission that provides enhanced overall performance by achieving precise and effective control by providing a fail-safe function in at least two ways.... Agent: Morgan, Lewis & Bockius LLP (sf)

20070049448 - Planetary gear wheel construction: A planetary gear wheel construction with one or several planet wheels which are bearing-mounted on a planet carrier, which is provided in a rotating manner in a housing, and an oil lubrication which is formed of an oil supply via a ring-shaped channel in the housing formed of a ring-shaped... Agent: Young & Thompson

20070049449 - Power transfer device: A power transfer device uses the differential ball principle or friction gear with friction reducing features for a given output torque capacity. The friction gear may be used in high output torque applications with an acceptably low torque requirement at the input. The power transfer device incorporates a two stage... Agent: Dykas, Shaver & Nipper, LLP

20070049450 - Continuously variable transmission: Embodiments of the inventions disclosed include a continuously variable transmission (CVT) where power is transmitted from a group of balls to a shaft via an idler. In one application, the CVT couples to a gearbox and to a generator of a wind turbine. Traction elements of a CVT can be... Agent: Knobbe Martens Olson & Bear LLP

20070049451 - Two-speed transfer case with ballramp clutch actuator: A transfer case is provided with a range unit, an interaxle differential, a clutch assembly and a power-operated actuation mechanism. The range unit includes a planetary gearset driven by an input shaft, and a synchronized dog clutch assembly for releasably coupling one of the input shaft or an output component... Agent: Harness, Dickey & Pierce, P.L.C

20070049452 - Common center section for independent rear suspension and fixed axle applications: A drive system for a motor vehicle according to this invention includes a first housing that includes a first mounting surface for securing the first housing to one of an IRS housing and a beam housing. Located within the first housing and one of said IRS housing and the beam... Agent: Macmillan, Sobanski & Todd, LLC

20070049453 - Automatic speed reducing ratio-switching apparatus: Helical gears, which are provided for a sun gear, planet gears, and an internal gear, have helix angles θ of not less than 25 degrees and not more than 45 degrees. Pawls provided for lock sections and internal gear lock receiving sections of the internal gear have rising angles γ,... Agent: Paul A. Guss Paul A. Guss Attorney At Law

20070049454 - Gas turbine gearbox: A method of manufacturing and/or providing a gearbox for rotating a propeller in a selected single one of a first and second direction is disclosed. The gearbox includes a many common components, selected irrespective of desired propeller direction, and a few unique components selected based on desired propeller direction. In... Agent: Ogilvy Renault LLP (pwc)