Patent application number | Description | Published |
20090241728 | ELECTRIC DUAL INPUT CLUTCH TRANSMISSION - A dual transmission includes a first input shaft, a second input shaft, a first input clutch adapted to drivingly couple a power source to the first input shaft and a second input clutch adapted to drivingly couple the power source to the second input shaft. First, third and fifth drive gears are driven by the first input shaft. Second, fourth and sixth drive gears are driven by the second input shaft. First, second, third, fourth, fifth and sixth driven gears selectively drive a countershaft. The first through sixth drive gears are in meshed engagement with the corresponding first through sixth driven gears. First through sixth synchronizer clutches are individually associated with the respective first through sixth drive or driven gears to provide first through sixth gear drive ratios to the countershaft. Each synchronizer clutch is selectively actuated by an associated first through sixth electric actuator. | 10-01-2009 |
20100004088 | DUAL CLUTCH MULTI-SPEED TRANSAXLE - 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. | 01-07-2010 |
20100285914 | Two-Speed Transaxle Gearbox For Electric Vehicles - A transmission to transfer power from an electric motor to first and second axles of a vehicle includes an input shaft adapted to be driven by the electric motor and a first planetary gear set. A second planetary gear set has a first member driven by the first planetary gear set, a second member restricted from rotation and a third member. A differential assembly has a first side gear adapted to drive the first axle, a second side gear adapted to drive the second axle and a pair of pinion gears meshed with the first and second side gears. A first clutch is operable to drivingly interconnect the first member and the differential assembly. A second clutch is operable to drivingly interconnect the third member and the differential assembly. | 11-11-2010 |
20100313706 | COMPACT TRANSFER CASE WITH BEVELOID GEARSET - A power transmission device for a four-wheel drive vehicle having a power source and first and second drivelines includes an input shaft adapted to be driven by the power source. A first output shaft is rotatable about a first axis and adapted to transmit torque to the first driveline. A second output shaft is adapted to transmit torque to the second driveline and is rotatable about a second axis. The first and second axes do not extend parallel to each other. A transfer unit includes a first cylindrically-shaped gear rotatably supported on the first output shaft and a second conically-shaped gear fixed for rotation with the second output shaft. The first and second gears are in constant meshed engagement with each other. | 12-16-2010 |
20100314189 | LOW-ANGLE SPLINE COUPLING FOR POWER TRANSMISSION UNITS - A power transmission device for a four-wheel drive vehicle includes an input shaft adapted to be driven by a power source. A first output shaft is rotatable about a first axis and adapted to transmit torque to a first driveline. A second output shaft is adapted to transmit torque to a second driveline and is rotatable about a second axis. The first and second axes diverge from one another. A transfer unit includes a drive member driven by the first output shaft and a driven member driving the second output shaft. A spline coupling is positioned within a cavity formed in the driven member to drivingly interconnect the driven member and the second output shaft. The second output shaft is axially moveable relative to the driven member. | 12-16-2010 |
20110111919 | Transmission Having Planetary Gear Drive With Variable Speed Reduction - A transmission for transferring torque from a prime mover includes a first input shaft adapted to be driven by the prime mover, a second input shaft and an output shaft. A compound planetary gearset includes a sun gear driven by the first input shaft, first pinion gears being driven by the sun gear, a ring gear fixed for rotation with the second input shaft and being meshed with second pinion gears, and a carrier driving the output shaft. A reaction motor drives the second input shaft. A controller controls the reaction motor to vary the speed of the second input shaft and define a gear ratio between the first input shaft and the output shaft based on the second input shaft speed. | 05-12-2011 |
20130345007 | CONTINUOUSLY VARIABLE TRANSMISSION FOR MOTOR VEHICLES - A continuously variable transmission for transferring drive torque from a powertrain to a driveline in a motor vehicle includes a planetary gearset, a reaction motor, and a control system. The planetary gearset includes a sun gear driven by the powertrain, a ring gear driven by the reaction motor, a carrier driving the driveline, and pinion gears meshed with the sun gear and the ring gear. The control system controls the reaction motor to vary the speed of the ring gear and define a gear ratio between the sun gear and the carrier based on the ring gear speed. | 12-26-2013 |
Patent application number | Description | Published |
20110111903 | VARIABLE RATIO EPICYCLIC GEAR DRIVES - A transmission for transferring torque from a prime mover includes a first input shaft adapted to be driven by the prime mover, a second input shaft, an output shaft and an epicyclic gearset. The gearset includes a ring gear being driven by the first input shaft, pinion gears being driven by the ring gear, a sun gear driven by the second input shaft and driving the pinion gears, and a carrier driving the output shaft. A reaction motor drives the second input shaft. A controller controls the reaction motor to vary the speed of the second input shaft and define a gear ratio between the first input shaft and the output shaft based on the second input shaft speed. | 05-12-2011 |
20110218070 | ELECTRIC DRIVE TWO-SPEED TRANSAXLE - An electric drive module for a motor vehicle includes an electric motor, a first input member, a first output member and a two-speed module selectively drivingly interconnecting the first input member and the first output member at one of two different drive ratios. A reduction unit includes a second input member being driven by the first output member and has a second output member being driven at a reduced speed relative to the second input member. A differential assembly has an input driven by said second output member. A first differential output drives a first output shaft, and a second differential output drives a second output shaft. | 09-08-2011 |
20130225350 | CONTINUOUSLY VARIABLE TRANSMISSIONS FOR MOTOR VEHICLES - A transmission for transferring torque from a prime mover includes a first input shaft adapted to be driven by the prime mover, a second input shaft, an output shaft and an epicyclic gearset. The gearset includes a ring gear being driven by the first input shaft, pinion gears being driven by the ring gear, a sun gear driven by the second input shaft and driving the pinion gears, and a carrier driving the output shaft. A reaction motor drives the second input shaft. A controller controls the reaction motor to vary the speed of the second input shaft and define a gear ratio between the first input shaft and the output shaft based on the second input shaft speed. | 08-29-2013 |
20130263452 | BEVELOID PLANETARY GEAR DRIVE FOR TRANSFER CASE OR TRANSMISSION - A method of assembling a planetary gearset includes die-forming plurality of circumferentially spaced apart teeth on a sun gear, a planet gear an a ring gear. Each tooth includes a pair of tooth flanks in a final net form for engagement with mating gear teeth. The sun gear teeth have a conical shape to allow a first die to linearly move relative to a second die after the gear teeth are die-formed. The planet gears are mounted on a carrier. The sun gear and the planet gear are oriented such that the conical shapes of the respective gear teeth taper in opposite directions from one another and the planet gear teeth meshingly engage with both the ring gear teeth and the sun gear teeth. | 10-10-2013 |
20130281243 | CONTINUOUSLY VARIABLE TORQUE TRANSFER MECHANISM - A transmission for transferring torque from a prime mover includes a first input shaft adapted to be driven by the prime mover, a second input shaft, an output shaft and an epicyclic gearset. The gearset includes a ring gear being driven by the first input shaft, pinion gears being driven by the ring gear, a sun gear driven by the second input shaft and driving the pinion gears, and a carrier driving the output shaft. A reaction motor drives the second input shaft. A controller controls the reaction motor to vary the speed of the second input shaft and define a gear ratio between the first input shaft and the output shaft based on the second input shaft speed. | 10-24-2013 |
20140031161 | TWO-SPEED TRANSMISSION FOR ELECTRIC VEHICLE - A transmission to transfer power from an electric motor to first and second axles of a vehicle includes an input shaft adapted to be driven by the electric motor and a first planetary gear set. A second planetary gear set has a first member driven by the first planetary gear set, a second member restricted from rotation and a third member. A differential assembly has a first side gear adapted to drive the first axle, a second side gear adapted to drive the second axle and a pair of pinion gears meshed with the first and second side gears. A first clutch is operable to drivingly interconnect the first member and the differential assembly. A second clutch is operable to drivingly interconnect the third member and the differential assembly. | 01-30-2014 |
20140051538 | MULTI-SPEED TRANSAXLE FOR ELECTRIC AND HYBRID VEHICLE APPLICATION - 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. | 02-20-2014 |
20140106921 | TWO-SPEED ELECTRIC DRIVE MODULE FOR ELECTRIC AND HYBRID VEHICLES - An electric drive module for a motor vehicle includes an electric motor, a first input member, a first output member and a two-speed module selectively drivingly interconnecting the first input member and the first output member at one of two different drive ratios. A reduction unit includes a second input member being driven by the first output member and has a second output member being driven at a reduced speed relative to the second input member. A differential assembly has an input driven by said second output member. A first differential output drives a first output shaft, and a second differential output drives a second output shaft. | 04-17-2014 |
20140174430 | PYRAMID LAMP MEDALLION CONTROL FOR SOLAR THERMAL POWER GENERATION SYSTEM - A method of calibrating a mirror orientation system of a heliostat includes mounting an artificial light source to a heliostat mirror, providing an array of light sensors on a solar thermal tower and positioning the heliostat mirror at a first orientation. A control module is provided a signal indicative of a mirror drive mechanism position at the first mirror orientation. The control module correlates the signal indicative of the mechanism position with an energy distribution across the sensor array as the artificial light source is energized when the mirror is at the first orientation. The drive mechanism moves the mirror to a second orientation and directs artificial light on the sensor array. The drive mechanism position signal is correlated with an energy distribution across the sensor array based on the second mirror orientation. The heliostat is calibrated based on the energy distributions and the drive mechanism position signals. | 06-26-2014 |
20140174499 | SOLAR THERMAL HELIOSTAT - A heliostat for reflecting sunlight toward a target includes a first structure supporting a mirror including inner and outer tubes being rotatable relative to one another. A first actuator includes an electric motor driving a reduction gearset to rotate one of the first tubes and rotate the mirror about a first axis. A second structure also includes inner and outer rotatable tubes. A second actuator includes a second electric motor driving a reduction gearset to rotate the mirror about a second axis. | 06-26-2014 |