Shift to 5th from Park

A forum for discussing applications and implementations of the MegaShift transmission controller code for the GPIO from B&G. This can control up to 8-speeds and 6 shift solenoids (plus a 16x9 table for controlling a PWM line pressure valve). It has manual and fully automatic modes (16x9 load x speed table), with under and over rev-limit protection, and full data logging of all inputs and outputs (among many other abilities). A TransStim to test your completed board is also available.
gurov
Posts: 164
Joined: Mon Jun 01, 2009 1:01 pm

Re: Shift to 5th from Park

Post by gurov »

i'm gonna go test this out right now (4.004 and the 2.1 latest) as i have some time to kill.
gurov
Posts: 164
Joined: Mon Jun 01, 2009 1:01 pm

Re: Shift to 5th from Park

Post by gurov »

2.106 works, 4.004 does not. same story with 4.004, i even tried to set it to 1 for shift_mode.

paddles also do not have any affect on the code when it's in "drive". they just stay all pressed, even when i go into the mode where paddles are all released.

would it matter if the paddles are always pressed to together on start, with the whole debounce thing, does it need an "off" state to start out with ?

drove 120-ish miles on 2.106, 3rd shift is still harsh and instant, manual shift modification works fine, using 1sec tapering TCC now for slightly smoother engagement.
Bernard Fife
Posts: 1696
Joined: Fri Apr 04, 2008 1:28 pm

Re: Shift to 5th from Park

Post by Bernard Fife »

MSQ and datalog?
"Never wrestle with pigs. You both get dirty and the pig likes it." - George Bernard Shaw
Bernard Fife
Posts: 1696
Joined: Fri Apr 04, 2008 1:28 pm

Re: Shift to 5th from Park

Post by Bernard Fife »

gurov,

Okay, I am seeing the non-responsive shift buttons on my bench. I will work on this - it shouldn't be too hard to sort out.

Lance.
"Never wrestle with pigs. You both get dirty and the pig likes it." - George Bernard Shaw
Bernard Fife
Posts: 1696
Joined: Fri Apr 04, 2008 1:28 pm

Re: Shift to 5th from Park

Post by Bernard Fife »

gurov,

I have isolated the problem, but not the solution just yet. I am checking several hypothesis. It may be a day or two before I have some code that works. I will post fixed code in the 'Latest Code Updates' thread when it is ready.

Lance.
"Never wrestle with pigs. You both get dirty and the pig likes it." - George Bernard Shaw
gurov
Posts: 164
Joined: Mon Jun 01, 2009 1:01 pm

Re: Shift to 5th from Park

Post by gurov »

Lance wrote:gurov,

I have isolated the problem, but not the solution just yet. I am checking several hypothesis. It may be a day or two before I have some code that works. I will post fixed code in the 'Latest Code Updates' thread when it is ready.

Lance.
cool.

there's still the issue where after shifting into drive with 4.004, it won't shift out of it going into N R and P.
Bernard Fife
Posts: 1696
Joined: Fri Apr 04, 2008 1:28 pm

Re: Shift to 5th from Park

Post by Bernard Fife »

gurov,

I tried the 4.005 code (from the beta code page) with your MSQ (2011-04-24_15-49-08.msq) and it appeared to work as expected on my bench (though I couldn't duplicate all the gear lever positions easily). I will keep testing here, let me know if it still doesn't work for you.

Lance.
"Never wrestle with pigs. You both get dirty and the pig likes it." - George Bernard Shaw
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