Interrelated power delivery controls – including engine control – Transmission control – Continuously variable friction transmission
Reexamination Certificate
2008-04-23
2011-11-08
Pang, Roger (Department: 3655)
Interrelated power delivery controls, including engine control
Transmission control
Continuously variable friction transmission
C477S115000, C477S905000, C180S231000, C701S056000
Reexamination Certificate
active
08052572
ABSTRACT:
The preferred embodiments of the present invention allow for easy shift-down and adjustment of a shift-down amount. According to some examples, a transmission (20) includes an electronically controlled transmission mechanism (21), and a control unit (5) that controls the transmission mechanism (21). The control unit (5) includes a transmission ratio control portion (55), a shift mode selection portion (52) that can select an AT mode and that shifts to a shift-down permission mode when a shift-down permission signal (101) is output in the AT mode, and a shift-down operation amount computation portion (51) that computes a shift-down operation amount based on a vehicle state of a motorcycle (1). The transmission ratio control portion (55) shifts down the transmission ratio of the transmission (20) based on the shift-down operation amount when a throttle (70) is operated in the shift-down permission mode.
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European Search Report with pages from Written Opinion dated Aug. 11, 2008.
Keating & Bennett LLP
Pang Roger
Yamaha Hatsudoki Kabushiki Kaisha
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