Throttle Sensitivity Settings

[AnthonyV]

What throttle sensitivity settings are you guys running? Sofar, I have the best results between 0-20% which allows a nice smooth throttle transition without that 'dead' spot up to 50% throttle trigger engagement.

I have reconfigured my ESC for 50% punch control, 6.5 Torque Limiting, and a few other minor changes. Today I decided to mess around with the throttle sensitivity and noticed when running anything above 40% that it just makes things too sensitive when you are at 80-100% throttle on the transmitter trigger.

This is quoted from another thread and everything sounds right... but he is using 90% to cure this issue whereas I'm at 0-20% (unless his 90% linear is 10% on the throttle sensitivity % bar under drive effects):

I started out with throttle at 50% expo and have it almost linear now (90%). 50% made it way vague & unresponsive under acceleration while making it super sensitive at around 75mph. In other words the trigger is pulled thu 97% of its travel at 75-80mph. To get up to 100mph you're left with a miniscule amount of trigger travel to control half of the power. Squeeze just a smidge too hard at 70mph and the car fights for traction from the huge power dump.

Another thing that I noticed is that the car will hit 0-90mph on the telemetry very quickly with 20% throttle sensitivity... but after about 102-104mph the speed slowly increases. Is this normal? I may have not been laying fully into the throttle as this was the first time I hit 100% throttle with traction. The traxxas datalog's confirmed that I was not getting wheel spin (rpms did not shoot up) but if memory serves correct I may have been feathering 100% throttle opposed to leaving it fully engaged.

[Gene C]

The only thing ive screwed with is the torque limiting. Not going to even mess with punch control. Did set the multifunction knob on the high speed one to throttle sensitivity, works great for toneing it down on windy days.

[AnthonyV]

What kind of throttle sensitivity settings are you using for your high speed runs?

[BL-Bob]

If I recall correctly both punch and torque control will not work together. Punch(punch delay) only works when TC is off.

[AnthonyV]

Are you 100% sure? Because my set-up is night and day with changing punch control settings when torque limiting is still enabled.

[Gene C]

What kind of throttle sensitivity settings are you using for your high speed runs?

Throttle sensitivity is set to 0 or off on high speed runs (non windy conditions or great road surface only). Torque limiting is set at .6. I see why your set low on throttle sensitivity because .7 or .8 is very hard to control (at least for me) on torque limiting with throttle sensitivity at 0 or off.

[Gene C]

If I recall correctly both punch and torque control will not work together. Punch(punch delay) only works when TC is off.

Correct, people only use this feature when they need to tame the motor alittle bit. Im sure your not trying to dial down your motor on this car AnthonyV. We all want it to go faster in a shorter period of time. Hats off to ya though, your playing around with these settings more than any who ive seen on here.

[AnthonyV]

Are you guys 100% sure about the punch control vs torque limiting enabled/disabled? Because I can tell a difference with the TL still enabled and setting punch control from 0% vs 50%.

[Gene C]

100% on the punch control. Punch control, if you have it set at 50% only gives you half power off the line until you build up enough speed. Kinda like traction control. Used to mess with it on my E-Revo awhile back when I was learning what it's threshold was. At least on the mamba monster was not able to do both unless they changed it.

[AnthonyV]

Ok... I think we've managed to confuse everyone here.

If I recall correctly both punch and torque control will not work together. Punch(punch delay) only works when TC is off.

Correct, people only use this feature when they need to tame the motor alittle bit. Im sure your not trying to dial down your motor on this car AnthonyV. We all want it to go faster in a shorter period of time. Hats off to ya though, your playing around with these settings more than any who ive seen on here.

Bob was saying punch control only works when Torque Limiting is disabled. Please correct me if I'm wrong... but this is not the case from my understanding/experience.



You have the option to set the punch control as well as keep the torque limiting enabled. From the factory the XO1 comes with the punch control disabled (0%). This means that the battery voltage dictates the punch control for the vehicle. I did not like this as the response changes with battery voltage. Increasing it from 0% to 50% gave a much crisper throttle response while still allowing the power to come in up top without the wheels spinning uncontrollably. I have played with all of the settings and I know for a fact there is a huge difference when keeping the Torque Limiting enabled (ex at 5.0) and going from values 0-100% on the punch control.

100% on the punch control. Punch control, if you have it set at 50% only gives you half power off the line until you build up enough speed. Kinda like traction control. Used to mess with it on my E-Revo awhile back when I was learning what it's threshold was. At least on the mamba monster was not able to do both unless they changed it.

Correct. Having the punch control set at 0% from the factory is another reason why our vehicles are so laggy from the get go. I see you had an EREVO too... whenever I run my 65c's on my EREVO I have to dial my punch control down to about 30% otherwise I've got a wheelie monster that will do a standing back flip with the smallest amount of throttle increase. The EREVO comes with torque limiting disabled.

Thank you again for sharing your throttle expo settings. I thought I was crazy with getting better results from 0-20% whereas some guys were saying they were closer to 100%. I also read somewhere else that guys were getting faster top speeds with higher throttle expo settings... but that contradicted all of the testing that I've done sofar. But then again, I have been programming the ESC quite a bit, hehe.

[Gene C]

Sorry, ment I was 100% sure that punch set at 0 was full power 50% was half power from throttle up. That's cool you can do both. Never did that with the E-revo. The E-revo and the E-maxx are the main reason I developed a feather finger for throttle. Knew you knew what you were doing with the programing, took a nap in translation somewhere. Lol!

[Gene C]

I do remember not doing a motor test on the E-revo which is why i never used torque limiting or punch in combo.

[Gene C]

BTW isn't throttle expo just in the transmitter? I think 100% and 0% on throttle expo are the same thing right? There was some talk on here awhile ago stating it dosent actualy change esc settings just helps make on the fly changes without physicly changing esc values.