Let the hacking begin... (Model S parts on the bench)

[pgiralt]

Here are the files for the 433Mhz version. To make it work for US cars you'll only have tot change the frequency.

mstegen/Open-Chargeport: Opens the chargeport of a Tesla Model S

Btw while working on the roadsters CAN bus i used the USBCAN interface. Very affordable at €99, supports up to 1Mbit/s. But i dont think its supported in savvycam at this moment.

Sorry I wasn't clear. I was hoping Lolachampcar could publish the design for the data logger he was thinking of building / loaning out so others could just build it themselves.

 

[lolachampcar]

The design is readily available from SiLabs and I've even already paid the NRE for the PCB manufacture. You can get the firmware file that must be programmed onto the assembled boards from Fuzzy or from me. Fuzzy helped me get the US targeted boards up and running on my end and pioneered the fob reverse engineering work that allowed it all to happen.

In short, we were both responding to you positively.....

 

[pgiralt]

The design is readily available from SiLabs and I've even already paid the NRE for the PCB manufacture. You can get the firmware file that must be programmed onto the assembled boards from Fuzzy or from me. Fuzzy helped me get the US targeted boards up and running on my end and pioneered the fob reverse engineering work that allowed it all to happen.

In short, we were both responding to you positively.....

excellent. Thank you. I must have not paid attention to that part of this 75 page thread.

 

[brec]

Dear WK057 et al,

I am a mere owner/driver, not an EE (electrons are yellow, right?). I don't care about advertised specs, as I'm happy with my 85D. But I do care about actual usable energy, as that is a crucial element of trip planning. E.g., EVTripPlanner.com gives me a good estimate of the energy cost of a leg or trip. At present, my only means of estimating my usable battery capacity is observations of reported kWh used per delta reported SoC. The result of such observations for longer legs is about 74kWh in my new-ish car. If you come up with any better data hidden within our cars, please let us know!

Thanks,

brec

 

[int32_t]

Dear WK057 et al,

I am a mere owner/driver, not an EE (electrons are yellow, right?). ...

No, actually electrons are Signature Red.

 

[Cyberax]

+1. CID removal instructions ought to be available on the forum somewhere.

Whew.... Done! I've removed the dashboard completely. Turns out that the airbag is connected to it by latches. If you want to remove the dashboard you also have to remove the airbag assembly by unscrewing it (10mm deep socket wrench is required). I'll post detailed instructions later.

However, you don't really need it to remove the CID - you just need to gently lift the driver's side of the dashboard. I'm actually doing it for another reason - I want to get rid of these @#%*#$ rattles and creaks. The service center here is a bit overloaded and they don't really have time to do a proper job.

 

[obrien28]

Whew.... Done! I've removed the dashboard completely. Turns out that the airbag is connected to it by latches. If you want to remove the dashboard you also have to remove the airbag assembly by unscrewing it (10mm deep socket wrench is required). I'll post detailed instructions later.

However, you don't really need it to remove the CID - you just need to gently lift the driver's side of the dashboard. I'm actually doing it for another reason - I want to get rid of these @#%*#$ rattles and creaks. The service center here is a bit overloaded and they don't really have time to do a proper job.

@cyberax

I have been contemplating the idea of making an iFixit page for the Tesla, I have the service manuals with detailed steps on how things go together but for the moment they are locked behind Tesla's byzantine legal team, much like Apple's repair documentation. However, there is nothing stoping an owner from looking at his own car and writing about it, for instance we could make a couple guides for things like disassembling the dash and maybe performing common maintenance items (changing the HVAC filter, correct tire rotation, etc), I have an iFixit account and have used their documentation system before, while you are willing to take apart your car (and take photos?), this might be an interesting opportunity.

 

[MuppetOwl]

@cyberax

I have been contemplating the idea of making an iFixit page for the Tesla, I have the service manuals with detailed steps on how things go together but for the moment they are locked behind Tesla's byzantine legal team, much like Apple's repair documentation. However, there is nothing stoping an owner from looking at his own car and writing about it, for instance we could make a couple guides for things like disassembling the dash and maybe performing common maintenance items (changing the HVAC filter, correct tire rotation, etc), I have an iFixit account and have used their documentation system before, while you are willing to take apart your car (and take photos?), this might be an interesting opportunity.

In Europe everyone can get access to the repair manuals, service bulletins and part manuals from Tesla website.

 

[jpet]

In Europe everyone can get access to the repair manuals, service bulletins and part manuals from Tesla website.

For a 2700 EUR annual subscription fee that is, right?

 

[MuppetOwl]

For a 2700 EUR annual subscription fee that is, right?

26 EUR for 1 hour. If you are not idle to long its no problem to browse the manuals for hours

 

[Mike K]

@cyberax
I have the service manuals with detailed steps on how things go together but for the moment they are locked behind Tesla's byzantine legal team

I too have the service manual, and while I would never share it publicly (or privately) for legal reasons, there's nothing stopping someone from performing procedures on the manual on their own and then documenting them. So more or less simply doing a particular job exactly as the manual suggests, documenting that, and then sharing it.

Really, other than the wiring diagrams, there's nothing in the manual that I saw that seems to give away the secret sauce and even with the manual you can't fix a lot of stuff as you need access to Tesla proprietary diagnostic tools.

 

[smac]

Whew.... Done! I've removed the dashboard completely. Turns out that the airbag is connected to it by latches. If you want to remove the dashboard you also have to remove the airbag assembly by unscrewing it (10mm deep socket wrench is required). I'll post detailed instructions later.

However, you don't really need it to remove the CID - you just need to gently lift the driver's side of the dashboard. I'm actually doing it for another reason - I want to get rid of these @#%*#$ rattles and creaks. The service center here is a bit overloaded and they don't really have time to do a proper job.

If you find the source of the creaks please post them up, I'd love to fix mine too. The service center did attempt to fix them once, and did cure 90%, but they have all returned

I had the drivers side seatbelt tick fixed, but the passenger side is now doing the same.


Anyway, getting back on topic, my CAN Logger is now sorted, and I hope to be able to fill out the dataset with my EU 60

 

[apacheguy]

Whew.... Done! I've removed the dashboard completely. Turns out that the airbag is connected to it by latches. If you want to remove the dashboard you also have to remove the airbag assembly by unscrewing it (10mm deep socket wrench is required). I'll post detailed instructions later.


However, you don't really need it to remove the CID - you just need to gently lift the driver's side of the dashboard. I'm actually doing it for another reason - I want to get rid of these @#%*#$ rattles and creaks. The service center here is a bit overloaded and they don't really have time to do a proper job.

I too have the service manual, and while I would never share it publicly (or privately) for legal reasons, there's nothing stopping someone from performing procedures on the manual on their own and then documenting them. So more or less simply doing a particular job exactly as the manual suggests, documenting that, and then sharing it.

Fantastic. Thanks for volunteering. Someone needs to post (using their own words and images) a tutorial on removing the IC and the CID. I'm sure any one of us, provided enough time, could dismantle the dash, but perhaps not without damaging some of the paneling. A set of instructions offering pointers would definitely be handy.

 

[lolachampcar]

Well, my coding skills have not improved over the years.....
I have done in a week what it takes mere mortals to do in a day

Anyway, I now have both battery health (post from above with all cell voltages and temps along with BatV and BatI) and performance logging up in running. Below is a some edited down for space data. The sample rate continues at the rate shown for the whole log run. For testing, I have the TPS threshold for logging set at 26.4% and was capturing 2 seconds of data once TPS drops below the threshold. There is simply too much data to try to do a running FIFO so as to capture Pre-TPSThreashold data That said, even stomping on the pedal as quickly as you can still yields multiple TPS values prior to any change power being delivered to the motors. This will capture all meaningful data for launches as well as roll on runs although I may have to tweak it for Launch Mode.

The logic goes like this-
Plug it into the diagnostic connector behind the Tesla cubby hole and the logger finds the end of the current log file and sets up to record
Exceed TPS Threshold and the logger will record all available CAN frames containing the values listed below
Once TPS drops below the Threshold, the logger will log a set number of seconds worth of data (currently set for two seconds) to capture wind down or regen data
Once the above number of records are recorded, the logger switches over and captures SoC (and soon to add BatT) and adds it as the last line in the log session record.
Repeat.....


I'm going to add one of the battery temps to the SoC recorded at the end of each data set as it would be good to know both SoC and battery temperature for a particular run. I'm also planning on showing up at PBIR at the end of the month to log all the drag runs.

Lastly, I'll get the switch on the unit to determine which mode (battery health or performance) the logger is currently running in so one device can do both without a firmware change.

Time .....TPS ...Speed ....R_Tq ...F_Tq ...BatV ....BatI .....Pwr
0070.56 026.4 +014.15 +100.8 +001.1 366.20 -0100.9 036.9
0070.57 026.4 +014.20 +101.9 +001.1 366.08 -0105.9 038.7
0070.58 026.4 +014.25 +101.4 +001.1 366.33 -0101.3 037.1
0070.59 026.8 +014.30 +102.3 +000.9 366.20 -0107.1 039.2
0070.60 026.8 +014.35 +101.9 +001.1 366.08 -0103.8 037.9
0070.61 027.2 +014.35 +102.3 +001.1 365.95 -0105.3 038.5
0070.62 027.2 +014.40 +102.8 +000.9 365.83 -0107.5 039.3
0070.63 027.2 +014.45 +103.0 +000.9 366.20 -0104.4 038.2
0070.64 027.2 +014.50 +104.5 +000.9 365.83 -0111.1 040.6
0070.65 027.6 +014.55 +104.3 +000.9 365.33 -0107.3 039.1
Records deleted for space
0076.12 016.4 +033.70 +016.9 +000.0 369.26 -0038.3 014.1
0076.13 016.4 +033.70 +017.1 +000.0 369.37 -0038.6 014.2
0076.14 016.4 +033.70 +017.1 +000.0 369.23 -0037.3 013.7
0076.15 016.4 +033.70 +016.9 +000.0 369.11 -0036.7 013.5
0076.16 016.4 +033.70 +016.5 +000.0 369.60 -0036.9 013.6
0076.17 016.4 +033.70 +016.2 +000.0 369.59 -0035.8 013.2
0076.18 016.4 +033.70 +016.0 +000.0 369.47 -0035.8 013.2
0076.19 016.4 +033.70 +015.6 +000.0 369.34 -0036.5 013.4
0076.20 016.0 +033.70 +015.1 +000.0 369.72 -0035.6 013.1
SoC 074.1

0084.19 026.4 +033.65 +050.1 +000.0 366.36 -0096.4 035.3
0084.20 027.2 +033.65 +053.2 +000.0 365.62 -0101.8 037.2
0084.21 027.6 +033.65 +055.8 +000.0 365.60 -0106.1 038.7
0084.22 028.0 +033.70 +056.4 +000.0 365.23 -0113.5 041.4
0084.23 028.0 +033.70 +059.3 +000.0 364.73 -0117.1 042.7
0084.24 028.4 +033.70 +060.1 +000.0 364.60 -0124.1 045.2
0084.25 028.8 +033.75 +061.2 +000.0 364.09 -0128.7 046.8
0084.26 029.2 +033.75 +063.7 +000.0 363.46 -0135.9 049.3
0084.27 029.6 +033.75 +066.0 +000.0 362.96 -0144.1 052.3
0084.28 029.6 +033.80 +068.4 +000.0 363.09 -0148.3 053.8
Records deleted for space
0087.70 009.6 +041.20 -008.6 +000.0 372.74 +0014.4 005.3
0087.71 009.6 +041.20 -008.8 +000.0 372.77 +0014.2 005.2
0087.72 009.6 +041.20 -008.8 +000.0 372.62 +0015.9 005.9
0087.73 009.6 +041.20 -009.0 +000.0 372.87 +0014.4 005.3
0087.74 009.6 +041.20 -009.7 +000.0 372.74 +0016.5 006.1
0087.75 009.6 +041.20 -010.6 +000.0 372.61 +0017.8 006.6
0087.77 009.6 +041.20 -011.2 +000.0 372.99 +0016.1 006.0
0087.78 009.6 +041.15 -011.9 +000.0 372.87 +0018.6 006.9
0087.79 009.6 +041.15 -012.3 +000.0 372.61 +0018.4 006.8
0087.80 009.6 +041.15 -012.3 +000.0 372.86 +0017.6 006.5
SoC 074.0

0097.33 027.2 +030.35 +054.9 +000.0 365.45 -0113.7 041.5
0097.34 027.6 +030.35 +054.9 +000.0 365.19 -0118.8 043.3
0097.35 028.0 +030.35 +055.8 +000.0 364.83 -0124.6 045.4
0097.36 028.4 +030.40 +059.3 +000.0 364.31 -0130.8 047.6
0097.37 029.2 +030.40 +066.7 +000.0 363.31 -0139.1 050.5
0097.38 029.6 +030.45 +074.4 +000.0 362.81 -0148.4 053.8
0097.39 030.0 +030.45 +080.2 +000.0 362.68 -0156.7 056.8
0097.40 030.4 +030.45 +083.5 +000.0 362.43 -0161.4 058.4
0097.41 030.4 +030.50 +085.0 +000.0 362.31 -0161.6 058.5
0097.42 030.8 +030.55 +085.9 +000.0 361.56 -0168.7 060.9
Records deleted for space
0100.35 008.4 +037.15 -016.0 +000.0 373.63 +0024.1 009.0
0100.36 008.0 +037.15 -016.4 +000.0 373.76 +0021.3 007.9
0100.37 008.0 +037.15 -017.8 +000.0 373.25 +0026.1 009.7
0100.38 008.0 +037.15 -019.7 +000.0 373.76 +0024.2 009.0
0100.39 008.0 +037.10 -019.9 +000.0 373.50 +0025.6 009.5
0100.40 008.0 +037.10 -019.7 +000.0 373.49 +0025.1 009.3
0100.41 008.0 +037.10 -019.1 +000.0 373.86 +0024.6 009.1
0100.42 008.0 +037.05 -018.0 +000.0 372.98 +0025.6 009.5
0100.43 008.0 +037.05 -017.1 +000.0 373.85 +0024.3 009.0
0100.44 007.6 +037.05 -017.1 +000.0 373.46 +0027.6 010.3
SoC 074.0

0137.77 026.4 +014.25 +103.2 -000.1 366.26 -0104.6 038.3
0137.78 026.4 +014.25 +103.6 -000.1 366.01 -0104.8 038.3
0137.79 026.4 +014.30 +104.1 -000.1 366.13 -0102.8 037.6
0137.80 026.4 +014.35 +105.1 -000.1 365.89 -0107.6 039.3
0137.81 026.4 +014.40 +104.3 -000.1 366.01 -0102.5 037.5
0137.82 026.4 +014.45 +104.7 -000.1 365.99 -0107.9 039.4
0137.83 026.4 +014.50 +104.3 -000.1 365.74 -0104.5 038.2
0137.84 026.4 +014.50 +103.8 -000.1 365.99 -0104.5 038.2
0137.85 026.4 +014.55 +104.1 -000.1 365.61 -0107.9 039.4
0137.86 026.4 +014.60 +103.9 -000.1 365.86 -0109.4 040.0
0137.87 026.4 +014.65 +104.5 -000.1 365.73 -0104.1 038.0
0137.88 026.4 +014.70 +103.8 -000.1 365.84 -0106.5 038.9
0137.89 026.4 +014.70 +103.8 -000.1 365.22 -0107.4 039.2
0137.90 026.4 +014.75 +103.9 -000.1 365.97 -0103.9 038.0
0137.91 026.4 +014.80 +103.2 -000.1 365.72 -0109.8 040.1
0137.92 026.4 +014.85 +103.6 -000.1 365.84 -0105.7 038.6
0137.93 026.8 +014.90 +103.0 -000.1 365.84 -0108.1 039.5
0137.94 026.8 +014.90 +103.4 -000.1 365.48 -0109.6 040.0
0137.96 026.8 +015.00 +103.8 -000.1 365.87 -0106.4 038.9
0137.97 026.8 +015.05 +103.8 -000.1 365.74 -0112.6 041.1
0137.98 026.8 +015.10 +104.5 -000.1 365.12 -0109.0 039.7
0137.99 026.8 +015.15 +104.3 -000.1 365.62 -0109.8 040.1
0138.00 026.8 +015.15 +105.2 -000.1 365.00 -0115.1 042.0
0138.01 026.8 +015.20 +106.3 -000.1 365.51 -0110.1 040.2
0138.02 027.2 +015.25 +106.2 -000.1 365.62 -0115.3 042.1
0138.03 026.8 +015.30 +106.7 -000.1 364.87 -0114.7 041.8
0138.04 027.2 +015.35 +107.3 -000.1 365.37 -0112.5 041.1
0138.05 027.2 +015.40 +108.2 -000.1 365.24 -0119.0 043.4
0138.06 027.2 +015.45 +108.0 -000.1 364.98 -0114.7 041.8
0138.07 026.8 +015.45 +109.3 -000.1 365.23 -0116.8 042.6
0138.08 027.2 +015.50 +110.2 -000.1 364.58 -0121.2 044.1
0138.09 027.2 +015.55 +109.7 -000.1 365.08 -0115.8 042.2
0138.10 027.2 +015.60 +110.2 -000.1 365.09 -0120.7 044.0
0138.11 027.2 +015.65 +110.8 -000.1 364.71 -0121.4 044.2
0138.12 027.2 +015.70 +111.0 -000.1 364.84 -0117.7 042.9
0138.13 027.2 +015.75 +111.5 -000.1 364.58 -0124.6 045.4
0138.14 027.2 +015.80 +111.3 -000.1 364.98 -0120.2 043.8
0138.15 027.2 +015.80 +112.2 -000.1 364.61 -0127.4 046.4
0138.16 027.2 +015.85 +112.8 -000.1 364.73 -0121.8 044.4
0138.17 027.2 +015.90 +112.4 -000.1 364.73 -0122.6 044.7
0138.18 027.2 +015.95 +113.2 -000.1 364.23 -0128.2 046.6
0138.19 027.2 +016.00 +113.7 -000.1 364.60 -0123.2 044.9
0138.20 027.2 +016.05 +112.8 -000.1 364.74 -0125.9 045.9
0138.21 027.2 +016.10 +113.9 -000.1 363.85 -0129.6 047.1
0138.22 027.6 +016.15 +114.6 -000.1 364.23 -0124.4 045.3
0138.24 027.6 +016.20 +113.4 -000.1 364.48 -0127.2 046.3
0138.25 027.2 +016.25 +113.9 -000.1 364.22 -0130.7 047.6
0138.26 027.6 +016.30 +114.6 -000.1 364.48 -0125.3 045.6
0138.27 027.6 +016.35 +113.5 -000.1 364.63 -0129.2 047.1
0138.28 027.2 +016.40 +114.3 -000.1 363.47 -0132.0 047.9
0138.29 027.2 +016.45 +115.2 -000.1 364.34 -0127.5 046.4
0138.30 027.6 +016.50 +114.6 -000.1 364.34 -0131.4 047.8
0138.31 027.6 +016.55 +115.7 -000.1 363.85 -0134.5 048.9
0138.32 027.6 +016.60 +115.9 -000.1 363.71 -0129.1 046.9
0138.33 027.2 +016.65 +116.7 -000.1 364.34 -0132.3 048.2
0138.34 027.2 +016.70 +117.4 -000.1 363.70 -0136.6 049.6
0138.35 027.6 +016.75 +116.3 -000.1 363.95 -0130.8 047.6
0138.36 027.2 +016.75 +117.4 -000.1 363.93 -0132.9 048.3
0138.37 027.2 +016.80 +117.8 -000.1 363.66 -0138.1 050.2
0138.38 027.6 +016.85 +116.9 -000.1 363.80 -0132.5 048.2
0138.39 027.6 +016.90 +118.0 -000.1 363.92 -0133.3 048.5
0138.40 027.2 +016.95 +117.8 -000.1 363.68 -0139.2 050.6
0138.41 027.6 +017.00 +117.4 -000.1 363.70 -0133.5 048.5
0138.42 027.6 +017.05 +118.0 -000.1 363.95 -0139.6 050.8
0138.43 027.6 +017.10 +117.8 -000.1 363.32 -0137.4 049.9
0138.44 027.6 +017.15 +118.3 -000.1 363.81 -0133.9 048.7
0138.45 027.6 +017.15 +117.8 -000.1 363.69 -0140.1 050.9
0138.46 027.6 +017.20 +118.3 -000.1 363.42 -0141.3 051.3
0138.47 027.6 +017.25 +118.9 -000.1 363.16 -0135.7 049.2
0138.48 027.6 +017.30 +118.1 -000.1 363.56 -0138.7 050.4
0138.49 027.6 +017.35 +119.1 -000.1 363.56 -0143.9 052.3
0138.51 027.6 +017.45 +118.9 -000.1 363.20 -0138.0 050.1
0138.52 027.6 +017.50 +118.5 -000.1 363.43 -0138.2 050.2
0138.53 028.0 +017.55 +118.9 -000.1 363.56 -0144.2 052.4
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0138.56 027.6 +017.70 +118.9 -000.1 363.42 -0142.1 051.6
0138.57 027.6 +017.70 +119.8 -000.1 363.18 -0146.8 053.3
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0138.59 027.6 +017.80 +119.4 -000.1 363.43 -0140.7 051.1
0138.60 027.2 +017.85 +120.2 -000.1 363.06 -0146.4 053.1
0138.61 027.2 +017.90 +120.5 -000.1 362.81 -0146.6 053.1
0138.62 027.2 +017.95 +119.4 -000.1 363.18 -0141.3 051.3
0138.63 027.2 +018.00 +120.2 -000.1 363.18 -0143.1 051.9
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0138.66 027.2 +018.15 +118.9 -000.1 363.32 -0141.6 051.4
0138.67 026.8 +018.20 +119.4 -000.1 363.32 -0144.8 052.6
0138.68 026.4 +018.20 +118.7 -000.1 362.95 -0148.3 053.8
0138.69 026.4 +018.25 +118.1 -000.1 362.97 -0141.0 051.1
0138.70 026.0 +018.30 +117.4 -000.1 363.47 -0144.1 052.3
0138.71 025.6 +018.35 +117.4 -000.1 363.09 -0145.7 052.9
0138.72 025.2 +018.40 +116.9 -000.1 362.86 -0140.9 051.1
0138.73 024.8 +018.45 +115.6 -000.1 363.48 -0140.0 050.8
0138.74 024.4 +018.50 +115.6 -000.1 363.49 -0143.2 052.0
0138.75 024.4 +018.55 +115.6 -000.1 363.10 -0143.3 052.0
0138.76 024.0 +018.60 +114.1 -000.1 363.23 -0136.5 049.5
0138.77 024.0 +018.60 +112.2 -000.1 363.61 -0134.3 048.8
0138.79 024.0 +018.70 +110.4 -000.1 363.74 -0137.1 049.8
0138.80 024.0 +018.75 +109.7 -000.1 363.23 -0140.4 050.9
Records deleted for space
0140.49 022.8 +023.80 +072.6 -000.1 365.19 -0106.3 038.8
0140.50 022.8 +023.80 +072.2 -000.1 365.19 -0106.7 038.9
0140.51 022.8 +023.85 +072.2 -000.1 364.95 -0107.2 039.1
0140.52 022.8 +023.85 +071.9 -000.1 365.19 -0107.5 039.2
0140.53 022.8 +023.90 +071.5 -000.1 365.45 -0107.6 039.3
0140.54 022.8 +023.90 +070.9 -000.1 365.21 -0107.7 039.3
0140.55 022.8 +023.95 +070.9 -000.1 365.33 -0107.9 039.4
0140.56 022.8 +023.95 +070.9 -000.1 365.33 -0108.1 039.4
0140.57 022.8 +024.00 +070.8 -000.1 365.46 -0108.0 039.4
0140.58 022.8 +024.00 +070.8 -000.1 365.09 -0107.9 039.3
0140.59 022.8 +024.05 +070.9 -000.1 364.71 -0107.9 039.3
0140.60 022.8 +024.05 +071.1 -000.1 365.21 -0108.1 039.4
0140.61 022.8 +024.10 +071.1 -000.1 365.09 -0107.6 039.2
0140.62 022.8 +024.10 +071.3 -000.1 365.23 -0107.5 039.2
0140.63 022.8 +024.15 +071.5 -000.1 365.21 -0107.2 039.1
0140.64 022.8 +024.15 +071.5 -000.1 365.09 -0107.0 039.0
0140.65 022.8 +024.20 +071.5 -000.1 364.73 -0106.9 038.9
0140.66 022.8 +024.20 +072.0 -000.1 365.11 -0106.5 038.8
0140.67 022.8 +024.25 +071.7 -000.1 365.12 -0106.5 038.8
0140.68 023.2 +024.25 +071.7 -000.1 364.98 -0106.8 038.9
0140.69 022.8 +024.30 +072.0 -000.1 364.97 -0106.9 039.0
0140.71 022.8 +024.35 +072.4 -000.1 365.10 -0107.0 039.0
0140.72 023.2 +024.35 +072.2 -000.1 365.22 -0107.2 039.1
0140.73 023.2 +024.40 +072.2 -000.1 365.20 -0107.5 039.2
0140.74 022.8 +024.40 +072.0 -000.1 365.22 -0107.4 039.2
0140.75 023.2 +024.45 +071.9 -000.1 365.09 -0107.7 039.3
0140.76 022.8 +024.45 +071.9 -000.1 364.97 -0108.0 039.4
0140.77 022.8 +024.50 +072.0 -000.1 364.96 -0108.3 039.5
SoC 074.0

 

[smac]

@LolaCarChamp

I'm a little confused (sorry it doesn't take much) there seems to be very little movement in f_tq (presumably front motor torque) is it a scaling issue?

There also seem to be points where rear motor is positive and front motor is negative :S

 

[wk057]

@LolaCarChamp

I'm a little confused (sorry it doesn't take much) there seems to be very little movement in f_tq (presumably front motor torque) is it a scaling issue?

There also seem to be points where rear motor is positive and front motor is negative :S

He's probably not in range mode, in which case the front motor is only used during acceleration and regen it seems.

 

[smac]

He's probably not in range mode, in which case the front motor is only used during acceleration and regen it seems.

I'd partially assumed that, it's hard with these log snippets to know exactly what is going on. Looking at the numbers it seems just some fairly gentle driving around.

The thing that threw me was +ve rear torque and -ve front torque from around 137s. Maybe some torque vectoring steering input (stretching here), maybe some measurement error (the numbers are very small after all), or maybe a slight glitch in the logging.




@lolacarchamp, BTW I think a self contained logger is great, keep up the great work. I'm just trying to add a first pass QA /sanity check.

 

[lolachampcar]

There is no meaningful front torque information and I think the data was dithering around zero sufficiently to have negative signed data show up. It was very gentle driving. When I had the TPS threshold set to 50%, the front motor was always showing torque. Also, WK is correct in that I do not think I have ever used range mode

I'll do some 100% runs in the AM and post bits. The car is charging now and I am curious as to what I will see for 0-60 using car generated data.




Update
I've written the logger code such that data is stored as if the device was a USB memory stick and the data is in text format so it is usable right off the logger. Ten years ago I was using MegaLogViewer to view such files. I'd like to team up with someone familiar with graphing software such that the files will flow seamlessly into a (free) graphing capability. Anyone interested in partnering up to fill in that gap? I'm happy to provide a logger and make any changes necessary in file format to make things easier.

 

[Nismode]

apacheguy,
I'll likely build up ten and loan, not lease, to those that have a need for it....
I did not post the stuff on the fob as a complaint but only in explanation for not building the loggers. I did the fobs for $20 which covered having the boards built in 200 piece quantities by hand, the plastic bits of the fob case and shipping. It took a whopping five minutes each to program and test them along with another five to package them up and get them shipped. TMC was kind enough to put up with the project as a no commercial/non vendor task but I do not want to wear out my welcome on that front. I would also prefer to give something away (or, in this case loan) than deal with money again.

Again, not complaining. A VAST majority of the people I dealt with were, as you would expect on this forum, FANTASTIC. It was a few that just has me approaching this project differently. Plus there are lots of commercial solutions for those that want to buy something in this case were there was not on the fob.

For those wanting to do the fob, I simply used the fob development design from SiLabs. It came with all PCB artwork and a BoM with all components including the plastic fob case. I can even dig up a link to PCBKart where I've already paid to have the artwork processed. That will save some change. Hopefully the boards are still on file.

I tried searching but I couldn't find much info about these fobs that you're speaking of. What do they do differently from the stock, OEM fobs?

 

[Fuzzylogic]

I tried searching but I couldn't find much info about these fobs that you're speaking of. What do they do differently from the stock, OEM fobs?

They will only open the chargeport, nothing else.