Patent classifications
F16H3/54
Gear Assembly for Use in Electric Drive Transmissions
A gear assembly including: a drive gear adapted to be connected to an output shaft of an electric motor and being rotatable around a transmission axis; a planetary gear assembly including at least one sun gear, two or more planetary gear members rotatably supported on a carrier about respective planetary gear axes and meshing with the at least one sun gear and optionally a ring gear, an input stage connected to the drive gear, and an output stage adapted to be connected to a drive member for rotation of the drive member about the transmission axis; a clutch member adapted for slippingly connecting the ring gear with the carrier or with the drive member; and a brake member adapted for fixedly engaging a part of the planetary gear assembly with a locking part of the gear assembly.
ASSEMBLY FOR USE IN AN ELECTRIC VEHICLE
An assembly for an electric vehicle includes an input shaft extending along a first axis and an electric motor rotatably coupled to the input shaft and co-axially aligned with the first axis. The assembly also includes an intermediate input shaft extending along a second axis and rotatably coupled to the input shaft. The assembly also includes an output shaft extending along the second axis and spaced from the intermediate input shaft along the second axis. The assembly further includes a planetary gearset rotatably coupled to the intermediate input shaft and to the output shaft, and co-axially aligned with the second axis. The assembly includes a final drive co-axially aligned with the first axis and rotatably coupled to the output shaft for providing rotational torque to at least one of a first and second set of wheels of the electric vehicle.
SHIFTING ASSEMBLY FOR A TRANSMISSION
A shifting assembly for a transmission at least has a first component, a second component, and a third component, the components interacting according to the shift state in that a friction clutch is arranged between the first component and the second component, a positively-locking clutch is arranged between the second component and the third component, and a freewheel unit is arranged between the second component and the third component. A connection means is provided which connects a clutch part of the friction clutch to a clutch part of the positively-locking clutch.
Methods and systems for a two-speed accessory drive of an engine
Methods and systems are provided for engaging and disengaging an electromagnetic clutch of a two-speed accessory drive of an engine of a vehicle. In one example, a method comprises, responsive to an electrical demand being higher than a threshold electrical demand, operating an electric machine of the vehicle in a motor mode to reduce a speed of a grounding gear of a planetary gear set of a two-speed accessory drive (TSAD) of the vehicle; and engaging an electromagnetic clutch responsive to the speed of the grounding gear reaching a clutch engagement threshold speed.
Work vehicle multi-speed drive assembly with clutch retention mechanism
A drive assembly for a work vehicle has a drive housing including at least one housing element forming a reaction member, a drive shaft rotatable about a drive axis, and a planetary gear set coupled to the drive shaft and configured to selectively rotate an output element. The drive assembly also includes at least one clutch arrangement having at least one clutch ring configured to selectively interact with the planetary gear set to effect a rotation speed of the output element. At least one actuator is configured to axially drive the clutch ring along the drive axis. A retention mechanism is configured to retain the clutch ring at an axial position along the drive axis. The retention mechanism includes a detent ball, a detent groove and a resilient member configured to urge the detent ball into the detent groove to retain the clutch ring at the axial position.
DRIVE TRANSMISSION DEVICE
A drive transmission device includes a clutch mechanism. The clutch mechanism includes a drive transmission member that is coupled to a first rotation member via a torque limiter and is arranged in a fitting part of a second rotation member and a third rotation member, and a transmission member moving part that includes a first gap and a second gap, the first gap being formed in the fitting part and having a width wider than the thickness of the drive transmission member and the second gap being formed in the fitting part and having a width that is equal to or smaller than the thickness of the drive transmission member, the transmission member moving part being formed in such a way that the width thereof becomes smaller about a rotation axis in the fitting part.
DRIVE TRANSMISSION DEVICE
A drive transmission device includes a clutch mechanism. The clutch mechanism includes a drive transmission member that is coupled to a first rotation member via a torque limiter and is arranged in a fitting part of a second rotation member and a third rotation member, and a transmission member moving part that includes a first gap and a second gap, the first gap being formed in the fitting part and having a width wider than the thickness of the drive transmission member and the second gap being formed in the fitting part and having a width that is equal to or smaller than the thickness of the drive transmission member, the transmission member moving part being formed in such a way that the width thereof becomes smaller about a rotation axis in the fitting part.
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.
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.
Electric drive unit and drive axle system
An electric drive unit and a drive axle system having an electric drive unit. The drive axle system also includes a drive shaft and an axle assembly that that is remotely positioned from the electric drive unit. The drive shaft operatively connects the electric drive unit to the axle assembly.