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Latest Code Updates
Posted: Thu Feb 17, 2011 6:39 pm
by Bernard Fife
gurov,
Yes, that's right. That's how the code has always been.
Lance.
Re: Full time lock up mode
Posted: Thu Feb 17, 2011 6:46 pm
by gurov
wait... without full time lockup on.
i disable full time lockup by setting 9000/8000 rpm and 6th gear. and relying on minimum speed for lockup
Re: Full time lock up mode
Posted: Thu Feb 17, 2011 7:38 pm
by Bernard Fife
gurov,
Yes, that's right. The code unlocks on downshifts, but stays locked on upshifts in 'normal' TCC mode.
The idea is that the TCC should only be locked if the load is low (if you are trying to accelerate briskly, then the TCC should normally be unlocked - both to avoid overloading the TCC, and to get the maximum torque multiplication from the converter), and an upshift is gentle when the load is low anyhow. So there's no need to unlock the TCC on upshifts.
Downshifts can happen if the car is decelerating quickly with engine braking (which can produce very low load levels), so the TCC is unlocked.
Lance.
Re: Full time lock up mode
Posted: Thu Feb 17, 2011 9:47 pm
by Bernard Fife
gurov,
BTW, in the next code (2.00F) I will disable the averaging if the speed is less than the user minimum setting. That should help a lot to let the speed rise properly if the min speed is set high, but keep it smooth above that speed.
I have a few other changes to make to make to the code, so this might take a few days.
Lance.
Re: Full time lock up mode
Posted: Fri Feb 18, 2011 5:40 am
by gurov
Lance wrote:gurov,
BTW, in the next code (2.00F) I will disable the averaging if the speed is less than the user minimum setting. That should help a lot to let the speed rise properly if the min speed is set high, but keep it smooth above that speed.
I have a few other changes to make to make to the code, so this might take a few days.
Lance.
cool, i drove it last night with no incidents or frustrations, sometimes even in auto mode.
my biggest problem is the gear shift table. and how little sense it still makes to me. maybe i do need to make that script to pull the data i need out of the logs to give me a hint.
will speed hysteresis ensure that there's only one shift (whether it's up or down) within a 10 mph window of the last shift (if my hysteresis is set to 10 mph) ? and is it +10 -10 or +5 -5 with 10 mph hysteresis ?
i need to start trying and actually tuning this table instead of making wild stabs in the dark at it.