Open office, I copy and paste the tps into another column since its between the seconds and rpm columns then delete the columns in between the seconds and rpms so I can then copy both at once when the tps is WOT and paste into the vdr. This seems to work for maybe one or two times then it will show just that little section in the beginning of the run. Maybe it has to do with that because I was just able to paste in 8 runs without issue just pasting the rpm and seconds in separately.

 

Ok the before mentioned standalone program is being written by me. I have a really early beta version of it for a few people to test. Dont test this program if youre going to get mad cause features arent there. There are a lot of things to add ... but I want to know how the interface is turning out and some testing of the calculations. It will compare up to 6 runs right now ... but cant delete runs after you add them, that functionality will come later. AFR is coming later too but the graph is already down there but blank.

If interested msg me on here and Ill get you a copy. Ill select a few at a time so dont get mad if you arent selected either. I dont need hate mail. Jack if this makes ya mad let me know and we can get this post removed. I just didnt know where else to post it, and since it was mentioned earlier...

 

It makes me FURIOUS!...Oh wait...no it doesn't,lol. I don't care man. You and Ziad are both working on making it part of stand-alone software that doesn't rely on Excel or OpenOffice and frankly, I'm cool with either of you taking what I hacked together and made a more fluid program from it. Keep on keepin' on

 

bbarnhill, ygpm

 

+1

 

I think I found a major bug... You can make more power on the second comparison... lol was that by design! I hope not . even when you compare the same run to itself.

 

smoothing factor 5 shows the bug even worse... I guess thats the problem with using massive worksheets of formulas behind the scenes. one wrong copy and paste can make things bad.

 

Thanks for pointing that out Speedy . If you know how many times that program was modified, your head would spin,lol. It needs a full revamp from the ground up but since others are already working on a stand-alone version of it, I basically stopped working on it at that point. The only reason the VDR is still viable with Evoscan now having a possible working power section finally would be for other vehicle platforms that cannot use Evoscan currently. It will give a nice 'universal' freeware option if these programmers can get it setup the way they intend it to come out.

IDK if you realize this, but those is what you will find with ANY power simulator...it's necessary math unfortunately. Hence why Evoscan's power section had so many bugs throughout the years too, it's quite the endeavor. I'm finally getting caught up with other projects so perhaps I might be able to revisit the spreadsheet version and clean things up a bit.

 

What do most of you guys use for smoothing factor? I didnt realize until now its always been set at 12 for me wondering if I should lower it or not. Is a smoothing of one basically the raw data as in most accurate? Then smoothing just helps you understand your power curve better?

 

The smoothing factor kinda varies depending on the datalog, hence the need for an adjustment. A Smoothing Factor of '1' is 100% raw data without any smoothing applied. You want to start low and work your way up until you see the irregularities smooth out. You basically can keep increasing the smoothing factor until you don't see a significant change from one to the next.

 

I think I noticed another issue with VDR: why is VDR doing such rough rounding? it seems to be fairly random in its sampling, and I calculated the % that it is rounding. why does it need to round at all? can't you just do smoothing instead? and the rounding looks a little bugged, for example this was my power run... showing the % rounding error...

RPM : Target RPM (RPM used for power formula)
2438 2450 0.49%
2500 2500 0.00%
2531 2550 0.75%
2594 2600 0.23%
2594 2650 2.16%
2688 2700 0.45%
2750 2750 0.00%
2750 2800 1.82%
2813 2850 1.32%
2875 2900 0.87%
2906 2950 1.51%
3000 3000 0.00%
3031 3050 0.63%

 

It doesn't round at all. It looks for the RPM closest to those markers without going over that value. It uses the actual RPM points though, I just broke it down to one sample every 50rpm so it didn't require so much smoothing/math to create a smooth curve. I also chose 50rpm increments because some people datalog a ton of items at once and get a horrible sample rate per second,though it will still log every 50 rpm even with so many items logged at once. Without that, people with super high sample rates would require a crapload of smoothing since they logged so many items. I compared it to a spreadsheet that would use every datalog line and once smoothing was applied it ended up being the identical power curve as the 50rpm increment spreadsheet. The math is solid, other than it being cut/pasted a bizillion times as I worked on adding featured people wanted (and me making human errors of course lol).

Since you've taking an interest in this lately, I will most likely go through it with a fine toothed comb sometime soon and clean up all of the mess.

 

the VERY early beta testing has started on HPCalc ... the standalone. Got three people supposedly testing it now to see if the curves look right. Ive triple checked the math but its time for me to sit back and wait and see if they come up with anything. Ill be adding some more small features in the meantime. Its a slow process when you dont have the spare time to write anything.

Maybe one of these years it will make it to the open market. I also plan on adding a screen for defining a run by copying and pasting run data logged from other programs into this one when the main features of this program work. Jack I will be sending you a link to where to install it as well. Only 4 people will have this link and if it starts getting hammered Ill know someone talked and Ill have to discontinue serving it off my home machine. Its supposed to be a temporary beta hosting so I didnt figure it would matter.

Ill update ya more as more becomes available.

 

Wow Brad, I REALLY like it! Pretty easy to use too. Just gotta figure out SOME way to set starting and ending clip points within the log (from the graph) so you can easily zoom in on the actual pull within the datalog,evoscan did this and it was really great. It basically showed a time graph and you could point,click and drag the selected 'time' area that you wanted the simulator to use,ignoring everything else before and after those points. It's nice because the user doesn't need to 'clean up' their datalog before they view it. This is really awesome when you want to crop a 1/4 mile pass so you can zoom on each gear and see how your power curve was per gear.

I know its a rough beta and it's missing stuff but I'll tell you anything Isee missing just in case you weren't already aware of it. I apologize if I mention stuff you are well aware of.

I would like to see the addition of a 'Delete selected Run(s)' option in the FILE dropdown list. Obviously larger font for the AFR axis and larger font for the HP/TQ values. I definitely recommend adding the seperate "Vehicle Weight" and "Occupants Weight". It's just much easier to calculate the passengers weight in your head than to add the vehicle weight....my own weight....my luggage....and my fiancee's weight (which is never accurate if I ask HER what her weight is,lol). If it automatically reloaded the graph if you changed a gear,that'd be cool. Oh, and default to 3rd gear. Then you can add some stylish pizzaz and I think you'll be done!

Seriously.....great job so far!

 

Thanks for the ideas!!! I really like people that make suggestions because thats the only way this thing will get better. (That and me finding time to work on it.) Its just slow finding time to work on it. Ill work on it some this summer for sure seeing as how All my classes are online. For the next couple of weeks its just hectic. Ive been trying to figure out how to make the font larger on the axis and the legend ... but no luck yet. The weight thing has bothered me for a while now and Im torn as to what to do. We will figure this out and get this thing working. I really wanted to get the AFR put in next and get that 'roughed in' but seeing as how my LC-1 will display to my gauge but not let me log ... Ive got to figure that out first.

Thanks for the comments and keep those suggestions coming.