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FJR Motorcycle Forums
FJR Specific Discussion
New ES Owner, Initial Impression Report
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<blockquote data-quote="Fred W" data-source="post: 1277704" data-attributes="member: 3828"><p>OK, this is interesting. I did a bunch of searching this afternoon and technical details of the operation of the YCC-T are hard to come by. I did find this one video that shows the R1's YCC-I and YCC-T graphically. Assuming that the YCC-T in the FJR is the same general technology, it is a lot more involved that either of us guessed.</p><p></p><p>[MEDIA=youtube]N-oJ9DHg7KU[/MEDIA]</p><p></p><p></p><p>It appears (toward the end of the video) that the throttle correction map that is applied by the YCC-T is 3 dimensional, including not only the servo master input (throttle grip position sender) and feedback of the throttle plate position from the TPS, but also what the current rpm is. To smooth out all the peaks and dips in the (known) power delivery curve, the throttle plates must vary how open they are (opening more or less) depending on what rpm the engine is at.</p><p></p><p>I would guess that the "Sport" mode has less "smoothing function" being applied than what the touring mode does? Or that it is applied with more "negative" opening adjustments than the sport's more positive ones. Cool beans!</p><p></p><p>You learn something new every day... <img src="https://www.fjrforum.com/forum//public/style_emoticons/default/wink.png" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="Fred W, post: 1277704, member: 3828"] OK, this is interesting. I did a bunch of searching this afternoon and technical details of the operation of the YCC-T are hard to come by. I did find this one video that shows the R1's YCC-I and YCC-T graphically. Assuming that the YCC-T in the FJR is the same general technology, it is a lot more involved that either of us guessed. [MEDIA=youtube]N-oJ9DHg7KU[/MEDIA] It appears (toward the end of the video) that the throttle correction map that is applied by the YCC-T is 3 dimensional, including not only the servo master input (throttle grip position sender) and feedback of the throttle plate position from the TPS, but also what the current rpm is. To smooth out all the peaks and dips in the (known) power delivery curve, the throttle plates must vary how open they are (opening more or less) depending on what rpm the engine is at. I would guess that the "Sport" mode has less "smoothing function" being applied than what the touring mode does? Or that it is applied with more "negative" opening adjustments than the sport's more positive ones. Cool beans! You learn something new every day... [IMG]https://www.fjrforum.com/forum//public/style_emoticons/default/wink.png[/IMG] [/QUOTE]
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FJR Motorcycle Forums
FJR Specific Discussion
New ES Owner, Initial Impression Report
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