Page 3 of 3
Re: Which 'load' is used in the PC calculations?
Posted: Wed Apr 22, 2015 2:09 pm
by Bernard Fife
Addicted,
That's what it does, but not the way it is intended to work and this is probably an artifact from some other code function. I will fix this and post code here.
Lance.
Re: Which 'load' is used in the PC calculations?
Posted: Wed Apr 22, 2015 2:39 pm
by Bernard Fife
Martin,
This 5.100i code should help:
There were two issues:
- a parameter (
LPshiftOptn) wasn't exposed in the INI that tells the controller what to do with the line pressure when shifting ("Use Table", "Use OFF Value", "Use Shift Limits" that can be found under 'Spare Ports -> Spare Port 3 PWM Setup -> Shift PWM Option'), and
- there was an issue in the code not recognizing this parameter properly.
The attached files fix both (subject to further testing, of course).
Lance.
Re: Which 'load' is used in the PC calculations?
Posted: Thu Apr 23, 2015 2:48 pm
by Bernard Fife
Addicted,
Attached is better code. I realize you have other issues to sort at the moment, but I wanted to post this here as I know others are following this thread.
This code has some subtle improvements to the spare port three PWM option logic during a shift, and some changes to the INI. This code will likely be released as 5.101 before too long.
Lance.
Re: Which 'load' is used in the PC calculations?
Posted: Thu Apr 23, 2015 11:33 pm
by Addicted
Morning Lance,
Well the 5.100i was tested and found to be OK last night. Rather than Sp3% dropping to zero on shift it appears to 'follow table' (despite me not having that option selected!)
but maybe thats what you are referring to with 5.100ii
I've checked out my solenoids/wiring and they're all spot on at 70ohms for on/off and 5.5ohms for the PC solenoid (I was hoping to find a duff solenoid or something shorted to ground)
Ive ordered a fluid and filter kit for the transmission as thats pretty much all I can do before I'm meant to leave on my trip, if after 18 months sorting the megasquirt/megashift setup I suffer a mechanical failure of the transmission I may well torch the car!
I'll load up 5.100ii this afternoon when I finish work.
Re: Which 'load' is used in the PC calculations?
Posted: Fri Apr 24, 2015 10:21 am
by Bernard Fife
maybe that's what you are referring to with 5.100ii
Addicted,
Yes. This ought to work correctly with the 5.100ii code, it does on my bench.
I feel you pain about your trans issues; this must be very frustrating after all your careful preparations.
Lance.
Re: Which 'load' is used in the PC calculations?
Posted: Fri Apr 24, 2015 12:06 pm
by Addicted
Hi Lance, no issues found with 5.100ii
Re: Which 'load' is used in the PC calculations?
Posted: Fri Apr 24, 2015 12:27 pm
by Bernard Fife
Great, thanks for letting me know!