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Search took 0.11 seconds. Search: Posts Made By: t vago
Forum: OpenGauge / MPGuino FE computer 02-06-2024, 08:15 AM
Replies: 201
Views: 59,222
Posted By t vago
If I understand you correctly, your LCD display...

If I understand you correctly, your LCD display would be oriented upside down. If that is the case, it is not possible to modify the code to have the characters displayed upside down. You would have...
Forum: OpenGauge / MPGuino FE computer 10-28-2023, 01:53 PM
Replies: 201
Views: 59,222
Posted By t vago
My code now supports frequency modulated...

My code now supports frequency modulated peak/hold fuel injection.

What's more - my code automatically detects whether the fuel injection signal is peak/hold or saturated, so there is no need to...
Forum: OpenGauge / MPGuino FE computer 08-05-2023, 06:38 AM
Replies: 104
Views: 17,550
Posted By t vago
It's a pause of 1/2 a second, that occurs once...

It's a pause of 1/2 a second, that occurs once every 3.5 seconds. I, ah, didn't test the hardware before I started developing my code to run on it, but I have flashed the hardware with v25 of your...
Forum: OpenGauge / MPGuino FE computer 08-05-2023, 06:05 AM
Replies: 104
Views: 17,550
Posted By t vago
Got Bluetooth support figured out. It took a few...

Got Bluetooth support figured out. It took a few days, but my code I think works correctly with the MPGuinoBlue app now.

I noticed a few things - first, on the displays, your code pauses once...
Forum: Aerodynamics 07-31-2023, 04:13 AM
Replies: 23
Views: 1,170
Posted By t vago
Yah, that is most likely the case. Also, how...

Yah, that is most likely the case. Also, how would one separate out the aero drag due to lift? That would cause vehicle weight to fluctuate at speed, dependent on speed of course, and would make...
Forum: Aerodynamics 07-28-2023, 06:08 PM
Replies: 23
Views: 1,170
Posted By t vago
Unfortunately, inclines will skew the input data...

Unfortunately, inclines will skew the input data if we concentrate only on going uphill or downhill.

Been thinking to rewrite the coastdown equation to make the constant term a function of lift,...
Forum: Aerodynamics 04-03-2023, 03:54 AM
Replies: 22
Views: 1,859
Posted By t vago
Yep, I read that thesis from a link in this here...

Yep, I read that thesis from a link in this here forum... I think one of your posts, in fact! That aerocap was a lot of fun to model and construct, and it served me well for many years, up until I...
Forum: Aerodynamics 03-24-2023, 05:46 AM
Replies: 22
Views: 1,859
Posted By t vago
Here's another idea for a truck aerocap - very...

Here's another idea for a truck aerocap - very little roof/sail interaction.



And it did take some fair amount of work.
Forum: OpenGauge / MPGuino FE computer 03-22-2023, 03:01 AM
Replies: 201
Views: 59,222
Posted By t vago
That's great to hear! :thumbup: I had...

That's great to hear! :thumbup:



I had a 2005 Dodge Magnum SXT with the 3.5L V6. It's very possible it shared the same fuel injector part number with your Jeep, at least from the factory. Not...
Forum: OpenGauge / MPGuino FE computer 03-20-2023, 06:02 AM
Replies: 201
Views: 59,222
Posted By t vago
That is strange. If you don't find anything and...

That is strange. If you don't find anything and your issue persists, I'll post an older version of my MPGuino code that I know works, and we'll go from there.
Forum: OpenGauge / MPGuino FE computer 03-18-2023, 02:28 PM
Replies: 448
Views: 189,453
Posted By t vago
Eh... I'm not sure that will work. The...

Eh... I'm not sure that will work.

The problem is, that at the interface between the fuel injector nozzle and the intake manifold, there is a varying pressure differential. Most cars handled this...
Forum: OpenGauge / MPGuino FE computer 03-18-2023, 11:14 AM
Replies: 201
Views: 59,222
Posted By t vago
Started adding USB support, researched a faster...

Started adding USB support, researched a faster square root algorithm, and started merging the SWEET64 trace functionality into the serial debugging monitor terminal.

The first page of this thread...
Forum: OpenGauge / MPGuino FE computer 03-18-2023, 06:04 AM
Replies: 448
Views: 189,453
Posted By t vago
That's more due to my not properly vetting the...

That's more due to my not properly vetting the code before posting it.

Sensor simulation is a development feature, as you've guessed. This must be turned off before MPGuino can read VSS or...
Forum: Instrumentation 03-16-2023, 01:47 PM
Replies: 12
Views: 1,212
Posted By t vago
My version of MPGuino supports analog output of...

My version of MPGuino supports analog output of either fuel remaining or fuel consumed, via a PWM signal.
Forum: OpenGauge / MPGuino FE computer 03-16-2023, 11:58 AM
Replies: 448
Views: 189,453
Posted By t vago
What version of MPGuino are you using? This is...

What version of MPGuino are you using? This is the thread of an older version of my own fork of MPGuino. I have since extensively refactored the code and am currently working on adding native USB...
Forum: OpenGauge / MPGuino FE computer 12-31-2022, 10:55 AM
Replies: 201
Views: 59,222
Posted By t vago
the MPGuino code uses two interrupts to measure...

the MPGuino code uses two interrupts to measure fuel injection pulses. The leading edge is measured in an input capture interrupt which is separate from the trailing edge. For late model Chrysler...
Forum: EcoModding Central 10-27-2022, 02:11 AM
Replies: 19
Views: 1,260
Posted By t vago
Keep in mind that there's a limitation regarding...

Keep in mind that there's a limitation regarding instrumentation that directly measures fuel injection pulses to get fuel consumption data.

They absolutely depend on the assumption that there are...
Forum: Introductions 05-12-2022, 07:35 AM
Replies: 15
Views: 1,276
Posted By t vago
First, welcome aboard! Second, there...

First, welcome aboard!



Second, there is a lot of things one could do with modifying the underbody air flow. I've been looking for this for my Opel Zafira this morning. Found this image in this...
Forum: Introductions 05-12-2022, 04:12 AM
Replies: 5
Views: 586
Posted By t vago
Heh... :D Unfortunately, the Opel has...

Heh... :D



Unfortunately, the Opel has no hitch installed. I'm thinking of something light that could be attached to the frame via quick-release latches. Something not very long, either, but...
Forum: OpenGauge / MPGuino FE computer 10-23-2017, 01:05 AM
Replies: 201
Views: 59,222
Posted By t vago
Not sure when, I've got to track down a bug in...

Not sure when, I've got to track down a bug in the keypress recognition section. It currently overrides button definitions that it's not supposed to, and that's kind of annoying to encounter when...
Forum: EcoModding Central 10-23-2017, 01:01 AM
Replies: 11
Views: 1,911
Posted By t vago
3.5L V6, manual transmission, coolant-based warm...

3.5L V6, manual transmission, coolant-based warm air intake

warm idle is 1.1 L/hr at idle of 600 RPM.
Forum: OpenGauge / MPGuino FE computer 10-17-2017, 12:36 AM
Replies: 201
Views: 59,222
Posted By t vago
Removed bug causing drag race function to...

Removed bug causing drag race function to prematurely cancel. Enhanced drag race function to allow it to auto-trigger whenever the vehicle is stopped, and then select the best 0-60 recorded time....
Forum: EcoModding Central 10-04-2017, 12:01 AM
Replies: 66
Views: 11,974
Posted By t vago
I can't find very many 12 hole injectors at all,...

I can't find very many 12 hole injectors at all, and cannot find anything that flows 19 lb/hr. Nearest I can figure, your injector cross-references to a Bosch 0280150955. That is an EV1 single pintle...
Forum: OpenGauge / MPGuino FE computer 09-02-2017, 03:19 PM
Replies: 201
Views: 59,222
Posted By t vago
I think that should be a low-speed test, at about...

I think that should be a low-speed test, at about 40 or so km/h. This should be used primarily to determine the coefficient of rolling resistance. Aerodynamic drag, viscous drag, and lift should not...
Forum: OpenGauge / MPGuino FE computer 08-15-2017, 12:06 AM
Replies: 201
Views: 59,222
Posted By t vago
The second parameter, air density, can be found...

The second parameter, air density, can be found from converting barometric pressure and outside air temperature, to density. Link here -> How to Calculate Air Density - Fly Me to the Moon...
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