Straddled Vehicle Speedometer Assist Display Temporal Notification
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Solution Overview
Problem
Straddled vehicles with small displacements face space constraints in displaying assist information near the speedometer, leading to reduced visibility and effectiveness of the assist display section due to layout limitations and the need for other controls.
Innovation Solution
A speedometer device with an assist display section that continues to notify the rider of engine assistance for a predetermined period after assistance ends, ensuring clear notification despite a smaller display area by using a control section to manage the assist display section's notifications based on assist state signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the assist display section is arranged in the limited space near the speedometer, then the rider can easily view both speed and assist information, but the display area becomes insufficient due to layout restrictions and other controls
Solution Approach 1:
The assist display section uses dynamic temporal notification strategies. When assist is active, it provides continuous visual feedback. When assist ends, it extends notification for a predetermined period to ensure complete information delivery. This temporal dynamics allows the small display area to effectively communicate assist status without requiring additional spatial resources.
Solution Approach 2:
The system changes the time parameter of notification duration. By extending the notification period after assist ends, the system compensates for the reduced spatial parameter (display area). This parameter transformation from space to time allows effective information delivery within constrained physical dimensions.
2Loss of information
If the assist display section provides continuous notification during assist operation, then the rider is well-informed of the assist function, but the notification may be insufficient if the display area is small
Solution Approach 1:
The system performs preliminary and extended notification by continuing to display assist status for a predetermined period after the assist function has ended. This ensures that the rider receives complete information about the assist function's activation and deactivation, preventing any information loss that might occur with brief or instantaneous notifications in a limited display area.
Solution Approach 2:
The notification action continues beyond the actual assist operation period. By maintaining the notification for a predetermined period after assist ends, the system ensures continuous information delivery about the assist status, making the most of the limited display area through extended temporal presence of the information.
Data Source
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AI summary
A speedometer device (200) is used in a straddled vehicle (100, 102) having an engine (10) and a rotating electrical machine (30) wherein the power of the engine is assisted by using the power of the rotating electrical machine. The speedometer device includes a speed display section (220) configured to display a running speed of the straddled vehicle; an assist display section (230) configured to give a notification that the engine is being assisted; and a control section (240) configured to control the notification by the assist display section. The control section causes the assist display section to give the notification over a period of time in which the engine is being assisted, and even after an end of the assistance, continue to give the notification over a predetermined period of time after the end of the assistance.