waynebergman said:
1. Is it the UpRAmp that will give me less of a lag time for throttle response to the wheel? I could only change the UpRamp setting it a tiny bit from .05 to .03 so I dont see much difference if any after changing the settings to this new number.
First - I'm assuming you are using P5 not P6.
UpRamp became
UpRate in P6. The manual needs an update to P6 - coming soon. As noted in recent posts, P6 uses the inverse value for configuration, which is actually nicer and incidentally gives better adjustment range due to implementation considerations.
The ramp units in P5 are sec/v, so for an throttle inout range of 3v it will take all of 3v x 0.05sec/v = .15 sec to ramp from zero to WOT - essentially instantaneous. Your change from 0.05 to 0.03 will not yield a ramp time change discernible by humans....
2.Is it correct that a lower number setting quickens the application of power?
It increases the allowable rate at which power can increase. The power is initially applied instantly without delay in all cases.
3. Maybe this ramping has more to do with the power curve once the power has reached the wheel and not so much with the lag time I am struggling with. For me its not so much that it takes and smoothes out the power at start ups but the speed at which it first reaches the wheel. I am fine to dish out the smoothness of the power on my own but I dont like this lag time before any power at all reach the wheel. Any ideas on this?
The ramp values set a limit on how fast
Throttle OUT can change. As long as
Throttle OUT changes more slowly than the configured value, the ramp setting has no effect. If the output tries to change faster than the ramp setting, the CA slows the change to comply. This does not actually introduce any delays in the
Throttle OUT change although you may perceive a delay on startup if it takes a bit of time to ramp up to a throttle level that will actually make the bike begin to move.
The other big player is the relevant gain setting if you are using a closed loop throttle mode. If you are using
Current Throttle and
AGain is too low, then power may increase/decrease more slowly as the responsiveness of the whole control system becomes more damped. Since you have
UpRamp set as low as possible, I'm thinking your gain may be set low (like 10 or so).
Since it seems your V3 was somewhat pre-configured for your MAC (mid-drive), the gain and ramping were probably set to relieve the strain on the gears and clutch on getaway. You can
download the P5 Setup Parameters doc to check what the real defaults should be. However, keeping the gain low also prevents surging so you have a couple of parameters to jiggle to balance several considerations for responsiveness, surging, and drivetrain-friendliness. Everything is a trade-off and you can't have it all.....
4. Any ideas why the setting I entered like .02 or .01 would get reset to .03?
This is a representation artifact of the limited number of bits available to store the value and the minimum allowable fixed point binary value. '0.03' is the decimal representation of the smallest value allowed. You will find similar behavior for many of the Setup parameters.
Hmmm... I guess that behavior probably deserves mention in the Guide...