Power shift transmission, method of operating the same and bicycle having a power shift transmission
AssigneeMahle International GmbH
InventorsAdrian Garcia, Christian Wirth
Life of this patent
Estimating the term…
Abstract
A power shift transmission for a vehicle driveable by motor power and/or pedal power may include a transmission device which transmits a torque introducible on a drive in a transmission ratio settable via a plurality of gears to an output. The power shift transmission may also include two shifting devices via which the transmission device is shiftable for setting the transmission ratio of the transmission device.
Claims20
A power shift transmission for a vehicle driveable by motor power and/or pedal power, comprising:
- a transmission device which transmits a torque introducible on a drive in a transmission ratio settable via a plurality of gears to an output, the transmission device including a load freewheel and at least two shiftable planetary gear sets that are coupled to one another via the load freewheel;
- and
- two shifting devices via which the transmission device is shiftable for setting the transmission ratio of the transmission device.
A method for operating a power shift transmission for a vehicle driveable by motor power and/or pedal power, the power shift transmission including a transmission device which transmits a torque introducible on a drive in a transmission ratio settable via a plurality of gears to an output, and two shifting devices via which the transmission device is shiftable for setting the transmission ratio of the transmission device, the method comprising:
- providing the power shift transmission in and/or with an initially pre-set transmission ratio of the transmission device;
- setting the transmission ratio of the transmission device to a transmission ratio differing from the initially pre-set transmission ratio via the two shifting devices;
- and
- wherein the method further comprises:
- actuating a first shifting device of the two shifting devices to directly fix and/or release a ring gear of a drive-side planetary gear set of the power shift transmission;
- and/or
- actuating a second shifting device of the two shifting devices to (i) fix and/or release a sun gear of the drive-side planetary gear set indirectly via a clutch, (ii) fix and/or release a sun gear of an output-side planetary gear set of the power shift transmission, and/or (iii) fix and/or release a ring gear of the output-side planetary gear set.
A power shift transmission for a vehicle driveable by motor power and/or pedal power, comprising:
- a transmission device which transmits a torque introducible on a drive in a transmission ratio settable via a plurality of gears to an output;
- and
- two shifting devices via which the transmission device is shiftable for setting the transmission ratio of the transmission device;
- wherein the two shifting devices each include:
- a load gear wheel;
- an actuatable multiple-disc braking device for braking and/or fixing the load gear wheel;
- and
- a freewheel device for coupling the load gear wheel dependent on a direction of rotation.
Dependencies are inferred from the claim text.