launch/transbrake question..

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jsimmons
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launch/transbrake question..

Post by jsimmons »

is there a way to tell when your on the transbrake in a log? when in the gauge panel in tuner studio I have a launch in indicator but while looking through logs there is no such indicator.. can anyone help me out?? With the few short logs I have its not really an issue but if I want to do a long log with some trans brake testing here and there itll get confusing where/when I'm on the tranbrake
nathaninwa
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Re: launch/transbrake question..

Post by nathaninwa »

Bring up status2, and 8 is launch indication
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jsimmons
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Re: launch/transbrake question..

Post by jsimmons »

nathaninwa wrote:Bring up status2, and 8 is launch indication
Sweet thanks man
jsimmons
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Re: launch/transbrake question..

Post by jsimmons »

I'm not seeing 8 as a status 2 code.. Is there a list of what these codes mean anywhere? I'm seeing 4, 12 and theres a 44 in there under status2
LT401Vette
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Re: launch/transbrake question..

Post by LT401Vette »

Each bit in the status fields are what is of importance, so if 8 indicates the trans brake is active, then it is really that you want to see if bit 3 is set.
0b00001000

So a value of 12 would indicate that the 3rd and 4th bits are set.

So in MLV you can make a calculated field like this so it only cares about bit 3:

Field Name: TransBrake
Formula:

Code: Select all

([Status2] & 8) > 0 ? 1 : 0
You will then have a field named TransBrake and the value will be 1 if active, 0 if not.
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Re: launch/transbrake question..

Post by jsmcortina »

The status bitfields are listed in the datalogging section of the TunerStudioReference manual.

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jsimmons
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Re: launch/transbrake question..

Post by jsimmons »

LT401Vette wrote:Each bit in the status fields are what is of importance, so if 8 indicates the trans brake is active, then it is really that you want to see if bit 3 is set.
0b00001000

So a value of 12 would indicate that the 3rd and 4th bits are set.

So in MLV you can make a calculated field like this so it only cares about bit 3:

Field Name: TransBrake
Formula:

Code: Select all

([Status2] & 8) > 0 ? 1 : 0
You will then have a field named TransBrake and the value will be 1 if active, 0 if not.
Okay so bit 4 and bit 8 are just added together to get 12? According to the reference manual 4 is launch in and 8 is launch.. there is nothing that is listed as 12 or 44
jsimmons
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Re: launch/transbrake question..

Post by jsimmons »

jsmcortina wrote:The status bitfields are listed in the datalogging section of the TunerStudioReference manual.

James
Thanks I didn't know they were listed there now I just need to figure out what 44 means on status to I'm not sure how it came up with that number
LT401Vette
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Re: launch/transbrake question..

Post by LT401Vette »

I just need to figure out what 44 means on status to I'm not sure how it came up with that number
Bit2 + bit3+ bit5

0b00101100 = 44
Phil Tobin
EFI Analytics, helping to simplify EFI
Next Generation tuning software.
Supporting all MegaSquirt versions and firmwares.
http://www.TunerStudio.com
http://www.efiAnalytics.com/MegaLogViewer/
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http://www.msextra.com/doc/donations.html
jsimmons
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Re: launch/transbrake question..

Post by jsimmons »

LT401Vette wrote:
I just need to figure out what 44 means on status to I'm not sure how it came up with that number
Bit2 + bit3+ bit5

0b00101100 = 44
ok now im really confused.. in the ref manual its not labeled like that. So im having problems interpreting whats active

Image
jsimmons
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Re: launch/transbrake question..

Post by jsimmons »

So does that mean flat shift is active? Cause its not enabled in my tune
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Re: launch/transbrake question..

Post by racingmini_mtl »

44=32+8+4
Spark Cut + Launch + Launch In
jbperf.com Main site . . . . . . . . . . . . . . . . . . . . . . jbperf.com Forum
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jsimmons
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Re: launch/transbrake question..

Post by jsimmons »

racingmini_mtl wrote:44=32+8+4
Spark Cut + Launch + Launch In
I see now thanks
nathaninwa
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Re: launch/transbrake question..

Post by nathaninwa »

Another thing you can do is look at spark timing, it's usually a fixed timing during lunch and at the release gos back to normal
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