Power commander V - speed sensor integration for crazy idea

Started by EEL, April 26, 2015, 09:15:24 AM

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EEL

After tweaking everything I can think of on my new (to me)  M1100 evo in the last couple of months, I've run out of practical items to work on.

So now it's time for the impractical.  [laugh]

I've noticed that the PC-v has the ability to integrate speed sensor data. With the combination of rpm data  gathered from the TPS and speed,  you can calibrate setpoints for gear specific fuel maps.

With a dual channel autotune already installed and advanced independent cylinder maps already functioning, enabling gear specific mapping should allow me to develop a "supermap" with a crazy 12 different fueling tables for the bike (one for each gear and cylinder)

Has anyone else been insane enough to try this? The logic makes sense in my head but I'm not sure if the autotune is capable of providing gear specific trim information.

Also the idea is for the PC-V to tap into the existing speed sensor that registers to the dash. My bike has 2 speed sensors. Does anyone know which one does this? Is it the back wheel or the front? The speed sensors on my bike are ridiculously inaccurate but for this to work precision is more important than accuracy. For the computer to establish what gear I'm in, the speed data has to be exactly the same as the dash input.

Any input would be appreciated.

Just don't tell me how stupid I am for trying this. I already know.

koko64

Here's a suggestion.

Use the Bazzaz system as a reference point as it comes with all this standard.
The Bazzaz system does this by tapping into the speed sensor and neutral light wire and more. I got a unit for my Hyper and it has a whole other loom enabling this, for map by map, gear for gear,tuning to perfection. I ended up not using it, but the options for tuning in all those parameters including speed shifters, traction control, etc are amazing.

I suggest going on the Bazzaz site and checking the wiring/installation  instructions to get an idea of what is involved. The Bazzaz unit I got had seven connection points while the PCV had three. It read everything.

Then you can check out the Dynojet site to see what accessories are available that will piggy back your unit.

Just a suggestion on a way forward for research.
2015 Scrambler 800

brad black

Brad The Bike Boy

http://www.bikeboy.org

EEL

I got the power commander and a dual channel autotune for less than 500 dollars combined. I'm sure the bazaaz is better but I'm a thrifty person and the damage is already done. No sense dwelling on it now. Plus there are more dynojet tuners in my area in case i wanted to tune it on the dyno. I dont expect to but the flexibility has its benefits. 

As for why I think it would be useful. I dont know. It might not be at all. If its a matter of positappping a speed sensor and just running 5 dollars worth of wire, why not?

Do you think it would be worse? I'm still just poking around about the idea so anyone who has experience, please chime in.

Ideally my goal is to install a handlebar switch that will allow me to switch from a fuel economy map to a power map on the fly. Figured I'd just develop the maps first.

koko64

Quote from: brad black on April 26, 2015, 07:30:38 PM
why do you think it would be useful?

From a wiring and accessories perspective. Its already laid out standard so EEL can see  it  conceptually. He can then see what parts he needs from DJ.

Or you asking EEL? In that case he's a perfectionist.  ;D
2015 Scrambler 800

koko64

EEL Im not suggesting you get a Bazzaz, but look at the Bazzaz layout to emulate with PCV accessories.
I went with the basic PCV because the wiring was cleaner and for the other reasons you mentioned. Dynojet dynos are everywhere. [thumbsup]
2015 Scrambler 800

brad black

a fuel economy map and a power map are the same thing.  it's called good mapping.
Brad The Bike Boy

http://www.bikeboy.org

koko64

So the switch is a gimmick?

Mapping for each gear would be seeking perfection I guess.
2015 Scrambler 800

EEL

Quote from: koko64 on April 26, 2015, 11:21:00 PM
EEL Im not suggesting you get a Bazzaz, but look at the Bazzaz layout to emulate with PCV accessories.
I went with the basic PCV because the wiring was cleaner and for the other reasons you mentioned. Dynojet dynos are everywhere. [thumbsup]

Ah...now I get it.. Good Idea!

I was going to place a call into Dynojet today. I didn't even think about the neutral condition and how the maps account for that. Looking at the PC-V Instructions. I cant figure out if it even does.

baz

Quote from: brad black on April 27, 2015, 05:54:19 AM
a fuel economy map and a power map are the same thing.  it's called good mapping.

this should be repeated.   [thumbsup]

koko64

2015 Scrambler 800

kopfjäger

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Raux

How can a economy map and power map be the same when stock in the closed area shoots for 14.7 and the pcv optimizers shoot for 13.6

koko64

 [popcorn].

Kind of where I am now with DP closed loop for economy and PCV map in open loop range for power. It is a significant compromise.

I guess if you want the whole range for power or economy without compromise the switch would be good? I think they mean mapping for power when the throttle position asks for it and economy in low load ranges.
Does that sound correct?
2015 Scrambler 800

koko64

Hey EEL, how's it going? Tried anything with this yet?

I'm curious about all this as I'm an old carb guy learning about EFI and interested in the different opinions on the idea.
2015 Scrambler 800