Split Release Shaft Layout for Compact Automatic Clutch Control
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Solution Overview
Problem
Existing automatic clutch systems in saddle riding vehicles face challenges in efficiently arranging the clutch actuator near the clutch apparatus without using hydraulic pressure, necessitating a compact and efficient design.
Innovation Solution
A clutch control apparatus with a clutch actuator that includes a divided release shaft, a clutch-side shaft supported by a clutch-side member and a control-side shaft supported by the actuator, allowing for an integral actuator unit that can be attached close to the clutch apparatus, and a recess portion on the cover member for compact arrangement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the clutch actuator is arranged directly at the clutch apparatus without hydraulic pressure, then the clutch control accuracy is improved, but the space arrangement becomes complex and impacts the driver's leg space
Solution Approach 1:
The release shaft is divided into two separate shafts: a control-side shaft (63) that is part of the clutch actuator (50) and a clutch-side shaft (62) that is supported by the clutch-side member (17a). This segmentation allows the actuator to be positioned away from the clutch apparatus, improving space arrangement while maintaining control accuracy through the coordinated operation of the two shafts via the release mechanism (38).
2Measurement precision
If the clutch actuator is positioned close to the clutch apparatus, then the clutch control accuracy is improved, but the device complexity increases due to the need for separate support structures
Solution Approach 1:
The clutch-side member (17a) serves multiple functions: it supports the clutch apparatus (26) and also supports the clutch-side shaft (62) of the release mechanism (38). This multi-functionality reduces the need for separate support structures, simplifying the overall device complexity while maintaining the actuator's close positioning to the clutch apparatus for improved control accuracy.
3Area of stationary object
If a divided release shaft structure is used, then the space arrangement is improved, but the manufacturing complexity increases
Solution Approach 1:
The release shaft is segmented into a control-side shaft (63) and a clutch-side shaft (62), allowing independent optimization of each shaft's design and manufacturing. The control-side shaft can be manufactured as part of the actuator assembly, while the clutch-side shaft can be manufactured separately and integrated into the clutch-side member, simplifying the overall manufacturing process despite the divided structure.
Data Source
AI summary
This clutch control apparatus includes a clutch apparatus, a clutch actuator, and a release mechanism, wherein the release mechanism includes a release shaft that transmits a drive force of the clutch actuator to the clutch apparatus side, the release shaft is divided into: a clutch-side shaft that is supported by a clutch-side member as a separate body from the clutch actuator; and a control-side shaft that is supported by the clutch actuator and is attachable to and detachable from the clutch-side shaft, and the clutch actuator configures an integral actuator unit that includes the control-side shaft.