Patent application number | Description | Published |
20080227587 | MULTI-SPEED TRANSMISSION - A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes a sun gear member, a planet carrier member, and a ring gear member. The torque transmitting devices include clutches and brakes arranged within a transmission housing. | 09-18-2008 |
20080242471 | Multi-Speed Transmission - A multi-speed transmission has four planetary gear sets and five torque-transmitting mechanisms packaged in at least one of six possible zones within the transmission casing. | 10-02-2008 |
20080242485 | MULTI-SPEED TRANSMISSION - A multi-speed transmission has four planetary gear sets and five torque-transmitting mechanisms packaged in at least one of six possible zones within the transmission casing. | 10-02-2008 |
20090005206 | HYDRAULIC FEED SYSTEM FOR A TRANSMISSION - The present invention provides an assembly for use in a transmission that includes a first rotating member having a first portion and a second portion, the second portion having an outer diameter greater than an outer diameter of the first portion and having a bore with an open end. An annulus has a port for providing a fluid and is disposed proximate to the first portion. A second rotating member is at least partially located within the bore and extends from the open end. A first passage is connected to the port of the annulus and a second passage is connected to the first passage. The second passage is located through the second portion. A third passage is connected to the second passage and is located in the second rotating member. Fluid is able to flow from the port through the passages to provide fluid to the second rotating member. | 01-01-2009 |
20090247343 | AUTOMATIC TRANSMISSION GEAR AND CLUTCH ARRANGEMENT - A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque-transmitting devices. Further, a hydraulic fluid control circuit is provided for controlling the operation of the plurality of torque-transmitting devices. The hydraulic fluid control circuit receives pressurized hydraulic fluid from an off-axis hydraulic fluid pump and has a plurality of fluid passages disposed in the transmission house, input shaft, output shaft and other coupling members. | 10-01-2009 |
20100038200 | Powertrain with Engine Oil-Fed Torque Converter - A powertrain is provided that has an engine and a torque converter. The engine is configured to provide oil to the torque converter for operation of the torque converter. The engine oil may provide both the fluid coupling and torque converter clutch apply and release functions. | 02-18-2010 |
20100179009 | ELECTRICALLY-VARIABLE TRANSMISSION - Various embodiments of electrically-variable transmissions have first and second motor-generators, first and second planetary gear sets, and two torque-transmitting mechanisms, including a rotating-type torque-transmitting mechanism and a stationary-type torque-transmitting mechanism. An input member is connected for common rotation with a ring gear of the first planetary gear set. Carrier members of both of the planetary gear sets are connected for common rotation with one another, and with an output member, via one or more radial-extending hub members and an axial-extending member or shaft. The first motor/generator is connected for common rotation with the sun gear of the first planetary gear set. The second motor/generator is connected for common rotation with the sun gear member of the second planetary gear set. In each embodiment, the various components of the transmission are positioned relative to one another to minimize the number and/or size of interconnecting shafts and shells. | 07-15-2010 |
20100179026 | LATCHING CLUTCH ASSEMBLY AND METHOD OF OPERATING THE SAME - A method of operating a friction plate clutch includes activating a clutch control mechanism to engage the friction plate clutch, and engaging a holding clutch. The clutch control mechanism is then deactivated, rendering it unable to maintain engagement of the friction plate clutch. The holding clutch is used to retain engagement of the friction plate clutch. One embodiment of the method uses a wedge clutch as the holding clutch, and another embodiment uses a one-way bearing clutch. The clutch control mechanism may be a hydraulic clutch control. A latching clutch assembly includes a friction plate clutch movable between an engaged and a disengaged position. A bearing clutch is operatively coupled to the friction plate clutch and has a locked and a released position. The locked position is configured to oppose movement of the friction plate clutch from the engaged position to the disengaged position. | 07-15-2010 |
20100190602 | MULTI-SPEED TRANSMISSION HAVING TWO PLANETARY GEAR SETS - A transmission is provided having an input member, an output member, two planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices include clutches, centrifugal clutches, and synchronizers. | 07-29-2010 |
20100210388 | MULTI-SPEED TRANSMISSION WITH AXIS TRANSFER - Various embodiments of electrically-variable transmissions are provided that have two motor-generators, two planetary gear sets, and two torque-transmitting mechanisms, including a rotating-type clutch and a stationary-type clutch. An input member is connected for common rotation with a ring gear of the first planetary gear set. Carriers of both of the planetary gear sets are connected for common rotation with one another, and with an output member. The first motor/generator is connected for common rotation with the sun gear of the first planetary gear set. The second motor/generator is connected for common rotation with the sun gear member of the second planetary gear set. A drive transfer assembly transfers torque from components establishing the first axis of rotation to components establishing the second axis of rotation. | 08-19-2010 |
20100236358 | DUAL CLUTCH MULTI-SPEED TRANSMISSION - A transmission includes an input member, an output transfer gear, first and second shaft members, first and second counter shaft members, a plurality of co-planar gear sets, and a plurality of torque transmitting devices. The torque transmitting devices include a plurality of synchronizer assemblies and a dual clutch assembly. The transmission is operable to provide at least one reverse speed ratio and a plurality of forward speed ratios between the input member and the output member. | 09-23-2010 |
20100236359 | DUAL CLUTCH MULTI-SPEED TRANSMISSION HAVING ONE COUNTERSHAFT AND A REVERSE SHAFT - A transmission includes an input member, an output transfer gear, first and second shaft members, a countershaft, a reverse shaft, a plurality of co-planar gear sets, and a plurality of torque transmitting devices. The torque transmitting devices include a plurality of synchronizer assemblies and a dual clutch assembly. The transmission is operable to provide at least one reverse speed ratio and a plurality of forward speed ratios between the input member and the output member. | 09-23-2010 |
20100267513 | MULTI-SPEED TRANSMISSION - A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes a sun gear member, a planet carrier member, and a ring gear member. The torque transmitting devices include clutches and brakes arranged within a transmission housing. | 10-21-2010 |
20100267514 | MULTI-SPEED TRANSMISSION - A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes a sun gear member, a planet carrier member, and a ring gear member. The torque transmitting devices include clutches and brakes arranged within a transmission housing. | 10-21-2010 |
20100267515 | MULTI-SPEED TRANSMISSION - A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes a sun gear member, a planet carrier member, and a ring gear member. The torque transmitting devices include clutches and brakes arranged within a transmission housing. | 10-21-2010 |
20100267516 | MULTI-SPEED TRANSMISSION - A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes a sun gear member, a planet carrier member, and a ring gear member. The torque transmitting devices include clutches and brakes arranged within a transmission housing. | 10-21-2010 |
20100267517 | MULTI-SPEED TRANSMISSION - A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes a sun gear member, a planet carrier member, and a ring gear member. The torque transmitting devices include clutches and brakes arranged within a transmission housing. | 10-21-2010 |
20100279811 | AUTOMATIC TRANSMISSION GEAR AND CLUTCH ARRANGEMENT - A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque-transmitting devices. Further, a hydraulic fluid control circuit is provided for controlling the operation of the plurality of torque-transmitting devices. The hydraulic fluid control circuit receives pressurized hydraulic fluid from an off-axis hydraulic fluid pump and has a plurality of fluid passages disposed in the transmission house, input member and other coupling members. | 11-04-2010 |
20100304917 | MULTI-SPEED TRANSMISSION - A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes a sun gear member, a planet carrier member, and a ring gear member. The torque transmitting devices include clutches and brakes arranged within a transmission housing. | 12-02-2010 |
20110021300 | MULTI-SPEED TRANSMISSION WITH MULTI-AXIS TRANSFER - Various embodiments of electrically-variable transmissions are provided that have two motor-generators, two planetary gear sets, and two torque-transmitting mechanisms, including a rotating-type clutch and a stationary-type clutch. An input member is connected for common rotation with a ring gear of the first planetary gear set. Carriers of both of the planetary gear sets are connected for common rotation with one another, and with an output member. The first motor/generator is connected for common rotation with the sun gear of the first planetary gear set. The second motor/generator is connected for common rotation with the sun gear of the second planetary gear set. A drive transfer assembly transfers torque from components establishing the first axis of rotation through components establishing one or two additional axes of rotation to a differential establishing yet another axis of rotation. | 01-27-2011 |
20110053725 | AUTOMATIC TRANSMISSION GEAR AND CLUTCH ARRANGEMENT - A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque-transmitting devices. Further, a hydraulic fluid control circuit is provided for controlling the operation of the plurality of torque-transmitting devices. The hydraulic fluid control circuit receives pressurized hydraulic fluid from an off-axis hydraulic fluid pump and has a plurality of fluid passages disposed in the transmission house, input member and other coupling members. | 03-03-2011 |
20110176932 | HYDRAULIC CIRCUIT FOR A POWER TRANSMISSION DEVICE - A hydraulic fluid circuit for a power transmission device includes a first hydraulic circuit segment fluidly decoupled from a second hydraulic circuit segment. A hydraulic pump includes a first fluidic pumping element and a second fluidic pumping element. The first fluidic pumping element fluidly communicates with the first hydraulic circuit segment. The second fluidic pumping element fluidly communicates with the second hydraulic circuit segment. The first fluidic pumping element is controllable to a first pump operating point to achieve a preferred high fluidic flow rate in the first hydraulic circuit segment. The second fluidic pumping element is controllable to a second pump operating point to achieve a preferred high fluidic pressure in the second hydraulic circuit segment. | 07-21-2011 |
20110209470 | TRANSMISSION HYDRAULIC CONTROL SYSTEM HAVING A PUMP BYPASS VALVE - A system for providing pressurized hydraulic fluid in a transmission of a motor vehicle includes a pump for providing pressurized hydraulic fluid having an inlet port and an outlet port. A bypass valve includes an inlet port in communication with the outlet port of the pump, a first outlet port in communication with the inlet port of the pump, and a second outlet port. The inlet port of the bypass valve is in communication with the second outlet port of the bypass valve when the bypass valve is in a first position and the inlet port of the bypass valve is in communication with the first outlet port of the bypass valve when the bypass valve is in a second position. A control device and accumulator are operatively associated with the bypass valve. | 09-01-2011 |
20120129640 | AUTOMATIC TRANSMISSION GEAR AND CLUTCH ARRANGEMENT - A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque-transmitting devices. Further, a hydraulic fluid control circuit is provided for controlling the operation of the plurality of torque-transmitting devices. The hydraulic fluid control circuit receives pressurized hydraulic fluid from an off-axis hydraulic fluid pump and has a plurality of fluid passages disposed in the transmission house, input member and other coupling members. | 05-24-2012 |
20120174998 | TRANSMISSION HYDRAULIC CONTROL SYSTEM HAVING FLUID BYPASS SLEEVE - A hydraulic control system for a clutch of a transmission includes a source of pressurized hydraulic fluid, a line pressure regulator valve, a clutch control valve, a control valve bore, and a bypass sleeve. The bypass sleeve is installed in the control valve bore and includes an axial bore, and a first and a second port. The first port is in communication with the axial bore and the first of the plurality of ports of the control valve bore, the second port is in communication with the axial bore and the second of the plurality of ports of the control valve bore, and the axial bore is not in communication with the remainder of the plurality of ports of the control valve bore. | 07-12-2012 |
20120175212 | LAUNCH / DISCONNECT CLUTCH FOR P2 HYBRID POWERTRAIN - A launch and disconnect clutch for the electric motor of a P2 hybrid powertrain is compact and provides improved operation. The clutch is mounted between the engine and transmission in the space formerly occupied by the torque converter. The clutch assembly is configured so that actuation, compensation and cooling are provided by only two oil channels. The clutch utilizes single-sided reaction plates which achieve high clutch gain thereby providing high torque capacity under electric operation and improved launch shudder characteristics. | 07-12-2012 |
20120178569 | HYBRID POWERTRAIN FOR A MOTOR VEHICLE - A transmission is provided having an input member, an output member, three planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices include clutches and brakes. | 07-12-2012 |
20120178573 | HYBRID POWERTRAIN FOR A MOTOR VEHICLE - A transmission is provided having an input member, an output member, three planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices include clutches and brakes. | 07-12-2012 |
20120178574 | MOTOR MODULE ASSEMBLY - A powertrain for a hybrid electric vehicle includes an engine, an electric motor module, and a transmission. The electric motor module includes a hydraulic cooling circuit for the electric motor. The hydraulic cooling circuit includes a fluid passage and an annulus in fluid communication with the fluid passage. The annulus is radially outwardly disposed relative to a stator of an electric motor for circulating hydraulic fluid around an outer circumference of the stator. | 07-12-2012 |
20120178583 | CLUTCH AND GEAR ARRANGEMENT FOR A FRONT WHEEL DRIVE VEHICLE - A front wheel drive transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes a sun gear member, a planet carrier member, and a ring gear member. The torque transmitting devices include clutches and a brake arranged within a transmission housing. Each of the clutches and the brake are located within specific areas defined by the planetary gear sets and the housing walls. | 07-12-2012 |
20120322604 | AUTOMATIC TRANSMISSION GEAR AND CLUTCH ARRANGEMENT - A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque-transmitting devices. Further, a hydraulic fluid control circuit is provided for controlling the operation of the plurality of torque-transmitting devices. The hydraulic fluid control circuit receives pressurized hydraulic fluid from an off-axis hydraulic fluid pump and has a plurality of fluid passages disposed in the transmission house, input member and other coupling members. | 12-20-2012 |
20130130859 | TWO-MODE CONTINUOUSLY VARIABLE TRANSMISSION - A continuously variable transmission includes a gearbox with two forward modes and a reverse mode. The gearbox includes a plurality of gear members and further includes at least three torque transmitting devices such as, clutches and brakes that are selectively employed to engage various combinations of the gear members such that a particular combination is associated with one of the two forward modes and the reverse mode. | 05-23-2013 |
20130196815 | VARIATOR ASSEMBLY - A variator assembly for a transmission includes an input shaft, an input disc, an output disc, a roller, a trunnion, a piston, and a connection member. The input shaft defines an axis of rotation and the input disc is rotationally coupled to the input shaft and coaxial with the axis of rotation. The roller is disposed between the input disc and the output disc to provide a speed ratio between the input disc and the output disc. The trunnion is connected to the roller and includes a connecting feature. The piston defines a central bore. The connection member has a head portion, a shaft portion, and a connecting portion, where the connecting portion is connected to the connecting feature of the trunnion, the head portion abuts the piston, and the shaft portion is disposed in the central bore of the piston. | 08-01-2013 |
20130210569 | COMPOUND PLANETARY FRONT WHEEL DRIVE CONTINUOUSLY VARIABLE TRANSMISSION - The present invention provides an automatic transmission for a motor vehicle having a compact single mode transfer gear continuously variable transmission (CVT) with a compound planetary gear carrier for use in front wheel drive vehicles. The automatic transmission includes an input shaft, a variator or other, similar device which provides a continuously variable input to output speed ratio over a limited range, a compound planetary gear assembly having a sun gear, a planet gear carrier with compound gear sets and a ring gear, a friction brake, a friction clutch and a plurality of transfer gears and layshafts. | 08-15-2013 |