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AssigneeClassified Cycling B.V.
InventorRoëll Marie VAN DRUTEN
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Disclosed is a bicycle transmission ratio changing system comprising bicycle transmission, and a control unit configured to change the bicycle transmission according to an shift sequence. The shift sequence includes a synchronous shift step of synchronously changing the transmission ratio of a first transmission and the transmission ratio of a second transmission; and a non-synchronous shift step of selectively changing either the transmission ratio of the first transmission or the transmission ratio of the second transmission. The shift sequence includes at least the lower of Nor M−1 synchronous shift steps, wherein N corresponds to the number of different transmission ratios of the first transmission and M corresponds to the number of different transmission ratios of the second transmission.
A bicycle transmission ratio changing system comprising
A bicycle transmission ratio changing system comprising
A bicycle transmission ratio changing system comprising
A bicycle transmission ratio changing system comprising
System of any preceding claim, wherein the upshift sequence and/or the downshift sequence through consecutive bicycle transmission ratios includes alternatingly the synchronous shift step and the non-synchronous shift step, or vice versa.
System of any preceding claim, wherein the upshift sequence and/or the downshift sequence is alternatingly a synchronous shift step and a non-synchronous shift step.
System of any preceding claim, wherein the upshift sequence and/or the downshift sequence of consecutive bicycle transmission ratios includes non-alternatingly the synchronous shift step and the non-synchronous shift step.
System of any preceding claim, wherein the synchronous shift step includes upshifting or downshifting the transmission ratio of the second transmission to at most a second-next higher or second-next lower transmission ratio, preferably to at most a next higher or next lower transmission ratio.
System of any preceding claim, wherein the upshift sequence and/or the downshift sequence contains all bicycle transmission ratios.
System of any preceding claim, wherein the upshift sequence and the downshift sequence are equal and opposite.
System of any preceding claim, wherein the non-synchronous shift step includes maintaining the transmission ratio of the first transmission and changing the transmission ratio of the second transmission.
System of any preceding claim, wherein all of the bicycle transmission ratios differ from one another by at least 5%, preferably at least 6%, more preferably at least 7%.
System of any preceding claim, wherein all bicycle transmission ratio steps from any one bicycle transmission ratio to the next higher or next lower bicycle transmission ratio are, at least approximately, equal.
System of any preceding claim, wherein, in the upshift sequence and/or in the downshift sequence, the transmission ratios of the second transmission are traversed in a descending or ascending order only.
System of any preceding claim, wherein the number of different transmission ratios of the first transmission is smaller than, or equal to, the number of different transmission ratios of the second transmission.
System of any preceding claim, wherein the first transmission is operable according to three or more transmission ratios, and/or wherein the second transmission is operable according to three or more transmission ratios, preferably according to four or more transmission ratios.
System of any preceding claim, wherein the upshift sequence and/or the downshift sequence is alternatingly a synchronous shift step and a non-synchronous shift step, wherein the non-synchronous upshift steps in the upshift sequence include maintaining the transmission ratio of the second transmission and upshifting the transmission ratio of the first transmission, and wherein the synchronous upshift steps in the upshift sequence include synchronously upshifting the transmission ratio of the second transmission and downshifting the transmission ratio of the first transmission, wherein, in the upshift sequence and/or in the downshift sequence, the transmission ratios of the second transmission are traversed in a descending or ascending order only.
System of any preceding claim, wherein the operating device is arranged for transmitting a shift signal for changing the bicycle transmission ratio to a second-next higher or second-next lower bicycle transmission ratio, and wherein the control unit is configured to receive the shift signal, and, in response to receiving the shift signal, change the transmission ratio of the first transmission and/or change the transmission ratio of the second transmission so as to upshift or downshift the bicycle transmission ratio to the second-next higher or second-next lower bicycle transmission ratio,
Bicycle comprising a bicycle transmission changing system according to any preceding claim.
Method for changing a bicycle transmission ratio of a bicycle transmission including a first transmission selectively operable according to one of at least two different transmission ratios;
A bicycle transmission ratio changing system comprising:
Dependencies are inferred from the claim text.