Method for performing shifts in a motorcycle gearbox
AssigneeBayerische Motoren Werke Aktiengesellschaft
InventorsDavid Thomas, Peter Wolff
Life of this patent
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AssigneeBayerische Motoren Werke Aktiengesellschaft
InventorsDavid Thomas, Peter Wolff
Estimating the term…
A method for changing between a multiplicity of discrete transmission ratio stages in a motorcycle gearbox is provided. In response to a shift demand, during the torque-transmitting connection of a drive shaft of the drive machine to a gearbox input shaft, a gear-selection drum of the transmission is rotatable from a first shifting position to an intermediate position which is situated between the first and a second shifting position, before shifting to the second shift position. In the intermediate position, no drive torque can be transmitted from the gearbox input shaft to a gearbox output shaft. During the gear selection drum movement from the first shifting position and the intermediate position, the drum may be rotated to a rest position in which drive torque can be transmitted from the gearbox input shaft to a gearbox output shaft.
A shifting method for changing transmission stages in a motorcycle gearbox having a plurality of discrete transmission stages for changing the speed ratio of a gearbox input shaft to a gearbox output shaft and a gear-selector drum rotatable by a shift actuator to select the plurality of transmission stages, wherein an input shaft of the motorcycle gearbox is configured to be coupled by a selectively shiftable clutch to a drive shaft of a driving engine to transmit a drive torque from the input shaft to an output shaft, comprising the acts of:
A motorcycle gearbox, comprising:
Dependencies are inferred from the claim text.