data logging--Throttle Position not logging, help?

[copdocpvd]

ok, I'm still trying to figure out my 0-60 times, thought that logging my throttle position AND my MPH might be a way to do it.

ANYWAY, I selected both variables for "view and record," the MPH views and records, but throttle position remains at 0 no matter what I try to do different.

Suggestions?

Or is this something I can only track if I hook the Predator up to a laptop during runs?


thanks in advance

Pete

[Quick]

Try absolute pedal position instead. There is a bit of lag but not much.

[copdocpvd]

will try that...any idea why the throttle position isn't working though? Anyone else able to get that to record?

[Mike_Levy]

Use throttle blade postion. That will work. Throttle position can't work, because theres no throttle position sensor. Its all built into the drive by wire. It knows where the blade is at all times, but thats all. The throttle position is where the computer tells it to be.

[copdocpvd]

now we're getting somewhere...

so, I'm thinking:

log MPH and "throttle blade position,"

view the graph where the throttle blade position changes for the beginning of the "0-60" and then when MPH hits 60mph for the end, subtract end from beginning for 0-60 time?

Or am I missing something?

[Mike_Levy]

I just use my normal logs for 0-60. Subtract the final 0mph reading, from the first 60mph reading and you have your 0-60 time.

So for example from my last log; 0mph is at 0:00:11:99, and 60mph comes up at 0:00:16:71, so for my 0-60 I'd take 16.71sec and subtract 11.99sec which would give me my 0-60 time of 4.72 seconds.


Also, looking at that log, Throttle position % was working. Not accurate, maxxing out at 129.7%, but working. Throttle blade never went past 77.1%.

[kmills]

Throttle blade position max is around 75-78%. If it shows more then that, something is not accurate.

[Quick]

If you used throttle position you would not be able to brake stall. Some people feel they get a better launch stalling up to 1.5K or 2K immediately before launching.