Hi all.
Following other thread I decided to clarify few things.
The story is...
Few weeks befor my trip to Poland I got in touch with manufactures of co called Universal Trip Computer. It's a little and simple gizzmo dedicated for cars without some features like fuel usage, etc. Very popular along Polish Galant 8th gen users. Bloke who makes UKPs is also member of Polish Mitsubishi forum (his nick "kaczart").
So, mine idea was to modify UKP and make it more usable for vr4 vehicles. That involved changes to software and hardware, setup of new display, etc. New features would be: wideband afr, map sensor boost/vacuum, etc. readings, also English language and imperial units version.
Whilst in being in PL I got two examples of beta version UKP for tests. Well, so far I did managed to burnt one trying to test whilst being in hurry.
At the moment I did approached following problems:
1. VSS signal.
There may be a problem with reading vss signal in vehcles with delimiter or km to miles converter. I got that problem whilst testing, and soon I'll test UKP taking signal directly from gearbox. We'll see.
2. Wideband signal reading.
Reading from analog 0-5v is nice and steady, but in whole range too hight 1.5 afr. Hopefully it's just down to rescaling soft. So far tested only with Innovate LC-1, don't know how it will work with other makes, i.e. PLX.
3. Map sensor reading. That's down to used equation. Most common used map sensors are made by Apexi or Greddy. Unfortunatelly for me I have AEM map sensor which is working with different equation. Anyway, we will consider to make in software also customer defined 0-5v signal from map sensor.
As you see there is still lots of work outstanding before stable product will be released (version 2.0 onwards). Unfortunately for me I'm very busy at the moment after being 5 weeks away. Hopefully I get back to testing next week.
Once all tests done, there will be possible of arranged group buy with nice discount.
So far, there is stable version 1.0 of UKP, here is description:
Recent features:
- vehicle speed (km/h)
• peak fuel consumption ( l/h and l/100km),
• average fuel consumption (l/100km),
• odo (from fuelling/reset),
• amount fuel left in tank,
• approx. distance to fuelling,
• independent trip calculator
• lpg option
• date and time,
• temperature inside and outside vehicle,
• temperature input for user (oil, coolant, engine block, etc,) 0-5V
• acceleration measure (i.e. 0-100 km/h, 60-120 km/h),
• narrowband lambda and graph (0-1V and 0-5V),
• radiator fan status monitor (on/off)
• peak temperature warning (i.e. oil, coolant, etc.) defined by user
• personalized welcome screen
• PC communication via interface USB (programming trip computer from PC level)
Technical data:
• power: +12V DC (range +9… +16V),
• peak power (LCD , illumination, sensors, etc): max 250mA,
• sleep power: max 55mA,
• working temperature: -40C…+80C,
• working temperature LCD: -20C…+70C (recommended +10C…+40C),
• temp sensors spectrum: -40C…+120C, tolerance +/- 0.1C,
• vehicle speed tolerance: +/- 1 km/h (callibration with GPS),
• acceleration measure tolerance: +/- 0.1s,
• tolerance of fuel consumption measure: 1% (after user callibration),
• tolerance of fuel consumption peak measure: average from 1st, 2nd or 3rd last second (user choice),
• o2 sensor probing frequency: 50Hz,
Dimensions of UKP:
· wide: 6,5 cm,
· length: 9,0 cm,
· height: 2,0 cm.
Display dimensions:
· PCB wide: 8,0 cm,
· PCB length: 3,6 cm,
· LCD wide: 6,5 cm,
· LCD height: 1,8 cm.
Links to actual website of product:
http://www.telwis.pl/universal-trip-...ml?language=en
Link to Polish Mitsubishi forum discussion and few tips how to fit into Galant (page 43):
http://forum.mitsumaniaki.pl/viewtop...=asc&start=630
And here (page 73 and 74):
http://forum.mitsumaniaki.pl/viewtop...978&start=1095
And here mine beta version:
P1070045.JPGP1070044.JPG