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-   -   EPA 150% (https://www.rctech.net/forum/radio-electronics/1110733-epa-150%25.html)

buggybug 03-16-2023 11:08 AM

EPA 150%
 
The throttle and brake EPA on my Tx can go as high as 150%. should I keep it at 150% when programming my ESC?

Roelof 03-16-2023 11:49 AM

No, just 100%

buggybug 03-16-2023 03:20 PM

Thanks!

billdelong 03-17-2023 11:40 AM

By calibrating at 150% you will increase the precision when adjusting the EPA and brake strength, however this won't increase the level of output.


If you find that making 1% adjustment on a 0-100% scale is too big of an adjustment, then that's where the 150% trim settings can come in handy.

gigaplex 03-17-2023 04:12 PM


Originally Posted by billdelong (Post 15989853)
By calibrating at 150% you will increase the precision when adjusting the EPA and brake strength, however this won't increase the level of output.


If you find that making 1% adjustment on a 0-100% scale is too big of an adjustment, then that's where the 150% trim settings can come in handy.

This is true if you use EPA to dial out the brakes, but if you use the dual rate instead you won't see that benefit. On most radios I've seen, the dual rate adjustment is quicker to do so it gets used more often.

Manning 03-17-2023 04:27 PM

I always calibrate with the max value of the radio (120, 125, 150) for the go side, but always calibrate with 100% on the whoa side. I never reduce the go side, but occasionally reduce the brakes. It's easier to think about a 100 scale instead of whatever the max value may be.

gigaplex 03-17-2023 04:29 PM


Originally Posted by Manning (Post 15989937)
I always calibrate with the max value of the radio (120, 125, 150) for the go side, but always calibrate with 100% on the whoa side. I never reduce the go side, but occasionally reduce the brakes. It's easier to think about a 100 scale instead of whatever the max value may be.

Why do you calibrate with a higher EPA on the go side?

Manning 03-17-2023 04:58 PM

Same as what billdelong said. Theoretically more resolution. Theoretically. It's there, so why not?

gigaplex 03-17-2023 06:03 PM


Originally Posted by Manning (Post 15989945)
Same as what billdelong said. Theoretically more resolution. Theoretically. It's there, so why not?

Except billdelong was talking about resolution of adjustments, which you've explicitly said you don't do on the throttle. And you don't use the increased resolution on the brakes which you do adjust. It would make more sense to use max EPA on both, and use DR to tone down the brakes.

Manning 03-17-2023 08:22 PM

OK, I"m crazy.

Roelof 03-18-2023 12:49 AM


Originally Posted by Manning (Post 15989945)
Same as what billdelong said. Theoretically more resolution. Theoretically. It's there, so why not?

Theoretically.....
Most transmitters and ESC's today work with at least a 12 bit resolution, that are 4096 steps. On a 100% EPA setting that is about 2700 steps, on only the throttle that will be 1350 steps. Is your finger that accurate that you can move one step?????? And will you nitice it?

1995 Monster T 03-18-2023 10:45 AM


Originally Posted by buggybug (Post 15989554)
The throttle and brake EPA on my Tx can go as high as 150%. should I keep it at 150% when programming my ESC?

Esc should be calibrated above 125% forward on most radios. No need to go to the max.

Roelof 03-18-2023 11:44 AM


Originally Posted by 1995 Monster T (Post 15990076)
Esc should be calibrated above 125% forward on most radios. No need to go to the max.

Should or can?

Yes it can but should not!

DirkW 03-18-2023 12:54 PM

At least people no longer claim that your car will run faster if you calibrate your ESC with EPA at 100% and then increase it to 150% after. Don't expect too much.


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