Automated shift control device and saddle type vehicle equipped with the same

A control device and automatic shifting technology, applied in transmission control, wheel transmission, bicycles, etc., can solve the problems of overload of the shift actuator and the inability of the shift actuator to rotate, so as to suppress overload, reduce The effect of little time

Active Publication Date: 2009-01-28
YAMAHA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when this operation needs to be performed automatically by an automatic shift control, complex control schemes are required to correctly control the input from the shift actuator
On the other hand, when there is a case where the gears cannot be smoothly engaged or released, there is also a problem that when the shift actuator is energized, the rotation of the shift power transmission mechanism is restricted, so the shift actuator Cannot rotate, overloading the shift actuator

Method used

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  • Automated shift control device and saddle type vehicle equipped with the same
  • Automated shift control device and saddle type vehicle equipped with the same
  • Automated shift control device and saddle type vehicle equipped with the same

Examples

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Embodiment Construction

[0039] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0040] An embodiment of a straddle vehicle according to the present invention will be described below. While the following examples demonstrate the most preferred aspects of the invention, the invention is not limited thereto. Although the straddle-type vehicle of the following embodiments is a motorcycle, the straddle-type vehicle according to the present invention is not limited to a motorcycle, and may be a tricycle, a buggy type vehicle, or the like.

[0041]

[0042] As shown in FIGS. 1 and 2 , a motorcycle 1 according to the present embodiment includes a head pipe 3 and a main body frame 2 . The main body frame 2 includes at least a main frame 4 extending rearward from a head pipe 3 and a rear arm support 5 extending downward from a rear portion of the main frame 4 . A backstay 7 is attached to the upper portion 5 a of the rear arm support 5 . ...

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PUM

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Abstract

The present invention relates to an automated shift control device and straddle-type vehicle equipped with the same. The automated shift control device comprises: a gear selecting mechanism configured to select a pair of gears of a transmission to transmit driving power from an input to an output of the transmission; a shift actuator configured to generate power to drive the gear selecting mechanism; a shift power transmission mechanism configured to transmit the power from the shift actuator to the gear selecting mechanism; and a torque limiter having a first rotating member to which the power from the shift actuator is transmittable and a second rotating member to which the power from the first rotating member is transmittable, the first rotating member co-rotating with the second rotating member to transmit the power from the shift actuator to the second rotating member as torque, when the torque to be transmitted to the second rotating member equals to or less than a predetermined limit torque, the first rotating member rotating relative to the second rotating member to limit the transmitted torque to the predetermined limit torque or less when the torque to be transmitted to the second rotating member exceeds the predetermined limit torque.

Description

technical field [0001] The invention relates to an automatic shift control device and a straddle vehicle equipped with the automatic shift control device. Background technique [0002] Vehicles are known which include automatic shift control means for automatically shifting transmission gears. Such an automatic shift control device generally includes a transmission, a shift actuator, and a shift power transmission mechanism. The transmission has a plurality of pairs of transmission gears and a gear selection mechanism. A mechanism for selecting one of the plurality of pairs of gears to transmit power, a shift actuator for driving the gear selection mechanism, and a shift power transmission mechanism for transmitting power from the shift actuator to the gear selection mechanism. [0003] In transmissions with dog gears, the gears sometimes do not engage or disengage smoothly during gear shifting. In this case, for example, in a foot-operated transmission in which a gear sel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62M25/00B62M11/04B62K11/00
CPCF16D7/021Y10T74/19251F16H61/32F16D2300/10F16H63/18F16D7/10Y10T74/19274F16H63/14F16D1/0858
Inventor 竹内善彦
Owner YAMAHA MOTOR CO LTD
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