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FJR Motorcycle Forums
Technical & Mechanical Problems
Fuel Economy and Smoothness without Compromise
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<blockquote data-quote="UselessPickles" data-source="post: 865205" data-attributes="member: 3256"><p>Hmmm... maybe I'll improve mine to take the gear into consideration. It might be nice to prevent cruising mode in 1st and 2nd gear.</p><p></p><p>Checking for steady RPMs is necessary. You wouldn't want it to jump into cruising mode while you're going full throttle for several seconds in 5th gear. That's an extreme case that could be worked around by only allowing cruising mode for a steady throttle that is below 30%, for example. But that would just be a band-aid fix, because it would still allow significant acceleration/deceleration in 5th gear as long as you hold the throttle steady while doing so. Requiring a steady throttle and steady RPM is a general solution that works in all gears and works only in situations that you would want cruising mode.</p><p></p><p></p><p>A little bit of searching didn't find anything with a lot of confidence. I know some systems are just a timer. Some are based on distance traveled. Some combine the two. There is a patent from 1977 for a gyroscope-based self-cancelling system. I'd have to assume there's systems available now that use a gyroscope. The gyroscope method will be a fun project. Basically, after the turn signal is activated, it would wait for a significant rotation of the motorcycle (leaning) in the direction of the turn, then a rotation in the opposite direction would finally cause the signal to cancel. The idea is simple, but it will take a lot of fine-tuning to ignore noise in the signal from the gyroscope, and to figure out how much of a rotation to require to trigger the cancelling.</p><p></p><p></p><p>I'll do my best <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="UselessPickles, post: 865205, member: 3256"] Hmmm... maybe I'll improve mine to take the gear into consideration. It might be nice to prevent cruising mode in 1st and 2nd gear. Checking for steady RPMs is necessary. You wouldn't want it to jump into cruising mode while you're going full throttle for several seconds in 5th gear. That's an extreme case that could be worked around by only allowing cruising mode for a steady throttle that is below 30%, for example. But that would just be a band-aid fix, because it would still allow significant acceleration/deceleration in 5th gear as long as you hold the throttle steady while doing so. Requiring a steady throttle and steady RPM is a general solution that works in all gears and works only in situations that you would want cruising mode. A little bit of searching didn't find anything with a lot of confidence. I know some systems are just a timer. Some are based on distance traveled. Some combine the two. There is a patent from 1977 for a gyroscope-based self-cancelling system. I'd have to assume there's systems available now that use a gyroscope. The gyroscope method will be a fun project. Basically, after the turn signal is activated, it would wait for a significant rotation of the motorcycle (leaning) in the direction of the turn, then a rotation in the opposite direction would finally cause the signal to cancel. The idea is simple, but it will take a lot of fine-tuning to ignore noise in the signal from the gyroscope, and to figure out how much of a rotation to require to trigger the cancelling. I'll do my best :) [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
Fuel Economy and Smoothness without Compromise
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