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BlackT
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« on: June 11, 2020, 08:07:40 AM »
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Does anyone have some info about this. Is it possible to display curent gear with elm327, on program like tourqeapp?
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Lechuga
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« Reply #1 on: June 12, 2020, 12:29:14 AM »
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Gangi is not available to OBDII protocol. You could however define a formula that, based on engine and vehicle speeds, could infer which gear you are in, which is similar to what I believe the ME7 does.
I read somewhere that Torque currently has experimental support for different types of adapters, one being specific for ME7 and requiring some configuration similar to the .ecu files.
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H2Deetoo
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« Reply #2 on: June 12, 2020, 12:55:40 AM »
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Recently i placed a cluster which was wrongly configured, it had a wrong wheel diameter constant in eeprom.
Besides the shown speed being greatly mismatched, it also showed wrong gear indication.
So this means it indeed calculates the gear index based on speed, rpm, wheel rotations etc.
Regards,
H2Deetoo
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BlackT
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« Reply #3 on: June 12, 2020, 01:46:25 AM »
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ME7 have curent gear output in vcds blocks.
I don't know are the PIDs that elm reads same as vcds blocks.
I would like to read it direct from trans/ecu. But I am also okay with option to calculate it from rpm and speed. Yust I don't know how to make that display on torque pro( or some other app)
Didn't find anywhere how to set that formula to read two PIDs and calculate something from them
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Lechuga
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« Reply #4 on: June 15, 2020, 12:26:59 AM »
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I have an idea how to do it in Torque.
First define custom PIDs for each gear based on gear ratio, rpm and speed as follows (using my gear ratios from a Audi TT 8n 6sp manual with 225x40r18 wheels):
1st: val{Engine RPM}*0.008367364/val{Speed (ODB)}
2nd: val{Engine RPM}*0.013579534/val{Speed (ODB)}
3rd: val{Engine RPM}*0.02125811/val{Speed (ODB)}
4th: val{Engine RPM}*0.026270507/val{Speed (ODB)}
5th: val{Engine RPM}*0.033016907/val{Speed (ODB)}
6th: val{Engine RPM}*0.039716487/val{Speed (ODB)}
And the magic comes in the following custom PID:
Gangi: CLOSEST(1:1:val{1st}=1:val{2nd}=2:val{3rd}=3:val{4th}=4:val{5th}=5:val{6th}=6)
Untested in a live scenario but it works in a test environment. Naturally you can put each individual gear calculation into the gangi PID but I split them up for ease of understanding
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BlackT
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« Reply #5 on: June 15, 2020, 04:09:27 AM »
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I have an idea how to do it in Torque.
First define custom PIDs for each gear based on gear ratio, rpm and speed as follows (using my gear ratios from a Audi TT 8n 6sp manual with 225x40r18 wheels):
1st: val{Engine RPM}*0.008367364/val{Speed (ODB)}
2nd: val{Engine RPM}*0.013579534/val{Speed (ODB)}
3rd: val{Engine RPM}*0.02125811/val{Speed (ODB)}
4th: val{Engine RPM}*0.026270507/val{Speed (ODB)}
5th: val{Engine RPM}*0.033016907/val{Speed (ODB)}
6th: val{Engine RPM}*0.039716487/val{Speed (ODB)}
And the magic comes in the following custom PID:
Gangi: CLOSEST(1:1:val{1st}=1:val{2nd}=2:val{3rd}=3:val{4th}=4:val{5th}=5:val{6th}=6)
Untested in a live scenario but it works in a test environment. Naturally you can put each individual gear calculation into the gangi PID but I split them up for ease of understanding
Thanks man, Do you have screenshot how this PID looks like in Toruqe |
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Lechuga
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« Reply #7 on: June 15, 2020, 06:34:25 PM »
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Great. Looking forward to seeing your method Sent from my ANE-LX1 using Tapatalk |
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BlackT
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« Reply #8 on: June 17, 2020, 03:35:10 PM »
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Working like charm All you need is this LOOKUP((val{Engine RPM}/val{Speed (OBD)}) ::80~1000=1:56~80=2:45~56=3:35~45=4:28~34=5:0~29=6) When you press test in PID editor you can read the output when you shift gear. So it is really easy and fast to adapt it to any gearbox without any math (Need to adjust first and second gear) https://youtu.be/xG5EZvsMCXY |
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Lechuga
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« Reply #9 on: June 17, 2020, 09:36:42 PM »
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That's brilliant!
I made some optimisations for the 6sp gearbox in the mk1 TT:
LOOKUP((val{Engine RPM}/val{Speed (OBD)}) ::110~150=1:69~80=2:45~56=3:34~44=4:28~33=5:0~28=6)
Sent from my ANE-LX1 using Tapatalk
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