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  #131  
Old 03-30-2018, 12:53 PM
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rv6ejguy rv6ejguy is offline
 
Join Date: Mar 2005
Location: Calgary, Canada
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Have been tweaking software mostly this week. Next week will involve mostly production of EM-5 orders as Barry heads out the week after for a well deserved and very needed vacation for 5 days in a warm place.

Our winter is hanging on here, still snowing which is very unusual at this time of year. That's not helping to speed the project along. I'd like to be running the system on our O-200 here but need warmer weather for that.
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Ross Farnham, Calgary, Alberta
Turbo Subaru EJ22, Marcotte M-300, IVO, RV6A C-GVZX flying from CYBW since 2003- 421 hrs. on the Hobbs,
RV10 95% built- Sold 2016
http://www.sdsefi.com/aircraft.html
http://sdsefi.com/cpi.htm


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  #132  
Old 04-16-2018, 03:54 PM
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rv6ejguy rv6ejguy is offline
 
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Barry was able to lick the last few software annoyances on Sunday so we'll be able to carry on with the second proto board production later this week to start testing of 2 boards talking together.
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Ross Farnham, Calgary, Alberta
Turbo Subaru EJ22, Marcotte M-300, IVO, RV6A C-GVZX flying from CYBW since 2003- 421 hrs. on the Hobbs,
RV10 95% built- Sold 2016
http://www.sdsefi.com/aircraft.html
http://sdsefi.com/cpi.htm


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  #133  
Old 04-17-2018, 08:37 AM
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rv6ejguy rv6ejguy is offline
 
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Location: Calgary, Canada
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Default Engine Testing?

Some people have asked how testing is coming along on the CPI2. Bench testing and tweaking continues but no engine testing has taken place yet.

The winter here has been unusually long this year and it's still cold and foggy today, snowed a bunch more yesterday. They say tomorrow it will really break but we've heard that several times in the last month.

As soon as we get a real break, we'll have the CPI2 running on our O-200 and post some videos and results. Unfortunately can't do much about mother nature in this case.
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Ross Farnham, Calgary, Alberta
Turbo Subaru EJ22, Marcotte M-300, IVO, RV6A C-GVZX flying from CYBW since 2003- 421 hrs. on the Hobbs,
RV10 95% built- Sold 2016
http://www.sdsefi.com/aircraft.html
http://sdsefi.com/cpi.htm


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  #134  
Old 04-18-2018, 09:46 AM
N54SG N54SG is offline
 
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Location: Kansas City, MO
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I suspect, as many other probably do, it will be well worth the wait. Thanks Ross!
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  #135  
Old 05-03-2018, 05:52 PM
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rv6ejguy rv6ejguy is offline
 
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Default Update

Barry has been solving a couple more odd issues with the battery switching circuits last week and this week, uncovered by bench testing when running the coils and interrupting power. One was taken care of with some new code, another required another component to be added.

The OV protection will be tested tomorrow and if that goes well, it will come off the bench on Monday.

This week was crazy busy with orders but the weather is finally good so our plan is to get the CPI2 prototype on the engine test stand next week to begin the running tests and battery switch over testing on an actual running engine.

Some issues have been really time consuming to fix on this device but we're just knocking them down one at at time.

Sorry for the long wait.
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Ross Farnham, Calgary, Alberta
Turbo Subaru EJ22, Marcotte M-300, IVO, RV6A C-GVZX flying from CYBW since 2003- 421 hrs. on the Hobbs,
RV10 95% built- Sold 2016
http://www.sdsefi.com/aircraft.html
http://sdsefi.com/cpi.htm


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  #136  
Old 05-24-2018, 03:52 PM
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rv6ejguy rv6ejguy is offline
 
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Default Progress

Bit of a milestone today. We finally ran our O-200 test engine with the CPI-2 providing the spark on the top plugs and an EM-5 running the bottom plugs plus injectors.

We got to test the battery switch over circuit by draining down the primary battery to below 10.2V and having the CPI-2 automatically switch over to the backup. Engine did not appear to skip a beat. We tried the test about 5 times by momentarily (1-2 seconds) touching a lead to the starting battery to bring the primary CPI-2 battery above the switch threshold voltage and then let it drain down again and switch.

More testing to do but it worked as designed so far.

We did have knock indication where the knock retard was zeroed. Believe that is a software thing so will be looking to fix that before the next engine runs.

I shot some video, will try to post that later today. Conditions were not so good to run outside with gusty winds and a bit of rain but we had to run the thing. There have been too many delays.
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Ross Farnham, Calgary, Alberta
Turbo Subaru EJ22, Marcotte M-300, IVO, RV6A C-GVZX flying from CYBW since 2003- 421 hrs. on the Hobbs,
RV10 95% built- Sold 2016
http://www.sdsefi.com/aircraft.html
http://sdsefi.com/cpi.htm



Last edited by rv6ejguy : 05-24-2018 at 03:54 PM.
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  #137  
Old 05-24-2018, 08:17 PM
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rv6ejguy rv6ejguy is offline
 
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Default Video

Just uploaded this from today's engine test with the CPI2.

It was too windy to set up the camera on a tripod so sorry for the motion and wind noise, even with a mic windshield fitted. Super gusty.

https://youtu.be/ndLCn146AQ4
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Ross Farnham, Calgary, Alberta
Turbo Subaru EJ22, Marcotte M-300, IVO, RV6A C-GVZX flying from CYBW since 2003- 421 hrs. on the Hobbs,
RV10 95% built- Sold 2016
http://www.sdsefi.com/aircraft.html
http://sdsefi.com/cpi.htm


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  #138  
Old 05-25-2018, 03:36 PM
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rv6ejguy rv6ejguy is offline
 
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Location: Calgary, Canada
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Did some more running today on the engine testing the battery switchover circuits, pulling battery leads right off and connecting again, trying to induce spikes and oscillations in the circuit right near the switching threshold. Perfectly smooth transitions. Seems the extra weeks of hard work has exorcised the demons which had been plaguing us during bench testing.

Next step is to incorporate the many changes made to the first prototype board and do a couple more new ones to test before production boards are made.

We'll try to get that in process at the end of the first week in June along with the keypads. That might be slow though as we have multiple EM-5 and CPI orders to work on next week. The summer months are usually a bit slower but looks like we'll be slammed in June at least.

We appreciate all the support!
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Ross Farnham, Calgary, Alberta
Turbo Subaru EJ22, Marcotte M-300, IVO, RV6A C-GVZX flying from CYBW since 2003- 421 hrs. on the Hobbs,
RV10 95% built- Sold 2016
http://www.sdsefi.com/aircraft.html
http://sdsefi.com/cpi.htm


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  #139  
Old 05-25-2018, 04:31 PM
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kentlik kentlik is offline
 
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Nice work!
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  #140  
Old 05-25-2018, 04:33 PM
Chkaharyer99 Chkaharyer99 is offline
 
Join Date: Oct 2011
Location: Pilot Hill, CA
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Is the battery switchover circuit testable? If so, how?
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