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Bye By Wire SystemHomework (Under construction) You will need Innovate Motorsports LogWorks to view these files. For a download link and quick tutorial on how to operate the software, click here. Here is the initial Bye By Wire System Video I did some time ago. The actual data collected from the runs at Bradenton Motorsports Park on 4-30-09 including some of Jay Gleason's. Click here to download
Here is the suspected trouble maker:
In the chart above, the Black line is the bikes RMP. The Blue line represents the accelerator signal. This is the actual input from Jay's rotation of the throttle grip. The Green line is the response from the ECU and how it moves the throttle plates of the throttle bodies. The area red is the difference between the two. As you can see, after Jay launches the bike, he opens the throttle but the ECU does it's own thing. I also believe the bike can actually handle more throttle at this RPM due to the air intake and exhaust changes made to the bike. For the record, if you analyze the LM-2 data with LogWorks software you will see a slightly lean AFR. We added more U4-2 race fuel at the track and leaned the bike beyond the adjustable settings I programmed into the Max Tuner therefore the AFR was down from the tuning of 12.8 I had performed before departing for the track. The first run or two (including the 9.51 pass) had not been recorded with the LM-2 as Jay had not started it before the runs. I will increase the Max Tuners scale to accommodate more fuel.
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