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  1. tomsax

    Any early Roadsters with the original battery?

    Thank you for the report on an original Roadster pack. I'm glad to hear it's being enjoyed as a daily driver. While I agree that getting mile-for-mile on ideal range requires a deliberate effort to drive efficiently in favorable conditions, I don't think using a homophobic slur is a good way to...
  2. tomsax

    Log Parsing tool available

    Hi Drew, The "help text" is what you get if you run the my parser with no arguments. It includes a list of all the command line options, the codes I use for the various record types, and some example commands. VMSParser The charge history is only available in the transient section of the log...
  3. tomsax

    Any early Roadsters with the original battery?

    Have you added your vehicle to the Plug In America Roadster survey? Getting current data there would be helpful to the community. There are tables and charts on the site, and all of the data (except personally identifying information like email addresses and non-US postal codes) can be...
  4. tomsax

    Any early Roadsters with the original battery?

    I believe Martin Eberhard's blog post, A Bit About Batteries, is still the best reference for understanding the Roadster's original battery pack. I've never heard of a benefit to lithium ion chemistry for charging to a higher SOC. I don't know about rumors that Tesla does a range mode charge as...
  5. tomsax

    Any early Roadsters with the original battery?

    I have a hard time believing it's bad for the battery not to range mode charge. I do believe the car needs to see a range mode charge, and discharge down to maybe 20% or so, for it to really know what the battery's capacity is. The longer it's been since a range mode charge, the less reliable...
  6. tomsax

    Log Parsing tool available

    No problem, it was a reasonable theory.
  7. tomsax

    Log Parsing tool available

    The -j option was created early on, before I starting parsing the vmslog file in place within the tar file. The idea is to write out a single flat file with all of the log entries from multiple files, but I don't know if it still works, or ever worked. The code that fixes the dates doesn't know...
  8. tomsax

    Log Parsing tool available

    You have to run VMSParser from the terminal (macOS) or command prompt (Windows). If you just run it from the Finder/Explorer (by double-clicking for example) it will do what you describe: open a temporary window, execute the command with no arguments so it spews out the default help text and...
  9. tomsax

    Charging the Roadster

    Good point! Charging at 120V takes about 50% more energy than 240V/32A. Tesla Roadster Charging Rates and Efficiency - Tom Saxton's Blog
  10. tomsax

    Charging the Roadster

    When charging at 120V, the coolant pump runs for a longer period of time. Some believe this leads to the coolant pump failing sooner or more often. It's probably not an issue if you're leaving the car parked for the winter, but I believe there's a small increased maintenance cost for replacing...
  11. tomsax

    Roadster 3.0

    Follow this link: Battery Survey « Plug In America Then just fill in the blanks. The page explains where to find the information needed, but feel free to message me with any questions. If you're reading your CAC, you're already ahead of the game, especially for a sixth grader! :)
  12. tomsax

    Roadster 3.0

    It would be helpful to get your stats on the Roadster survey. That will let you see how your car compares to others and let others get more info on the performance of the new battery packs.
  13. tomsax

    Roadster charging

    I have a couple of Roadster HPWCs I could be talked into selling. They are the original Tesla versions, made prior to the ClipperCreek version. Unlike the ClipperCreek versions, they have an easy way to set the maximum charge rate. Of course, you can always set the charge rate at a given...
  14. tomsax

    Vehicle 2 Grid yet again

    I agree that we need a lot more EVs, but total US sales is over 1 million, almost 1.5.
  15. tomsax

    Any early Roadsters with the original battery?

    You can see lots of data on the Roadster battery survey. If you own a Roadster, please share your experience, or use the update form if you're reported before. One thing to keep in mind: the car can't know the pack's capacity if it hasn't seen it charge and discharge recently. The longer the...
  16. tomsax

    Log Parsing tool available

    Version 1.2.7 of my log parser tool is available from the VMSParser page. - increase histogram (-b) support from 10 years to 20 years Thanks to slcasner for the bug report.
  17. tomsax

    Log Parsing tool available

    Version 1.2.6 of my log parser tool is available from the VMSParser page. - correct mangled timestamps due to GPS Week 1024 wrapping issue - improve end SOC for drive sessions - improve odometer range shown in transient section summary line - fix bug in Mac version parsing dates for -s and -e...
  18. tomsax

    Odd decoding of logs (negative distance)

    BTW, there's an email link at the bottom of my web page that anyone can use to contact me with VMSParser issues.
  19. tomsax

    Odd decoding of logs (negative distance)

    Hi Greg, Thanks for the bug report. There's nothing wrong with your car, just decode issue in my parser. There's a new version available on my web site that fixes the problem. VMS Log Parser for Tesla Roadster The details... There is no such thing as a driving or charging session in the...
  20. tomsax

    Vehicle 2 Grid yet again

    In 2015, I used data from the Plug In America EV Battery Surveys to calculate battery pack capacity loss per kWh cycled through the pack from the LEAF, Roadster, Model S 60 kWh and Model S 85 kWh. I then modeled the depreciation cost of each kWh based on battery pack replacement costs and...
  21. tomsax

    Roadster Owner Based Study of Battery Pack Capacity Over Time

    The model info and service info screens have your VIN number. The VIN sequence number is at the end, typically three or four digits depending on how early your vehicle was produced in its group. The sample photo on the Roadster survey page shows the VIN for sequence number 217 in the US...
  22. tomsax

    90 and 75 battery packs getting nerfed early???

    It would be great to get data from all owners interested in tracking battery capacity into the Plug In America Model S Owner Survey. Fill out the form, update periodically, and track your car over time and compared to similar and different vehicles. There are also surveys for the Model 3, Model...
  23. tomsax

    Roadster Owner Based Study of Battery Pack Capacity Over Time

    Yes, people are still reporting their experience with the Plug In America Roadster Owner Survey. I'd like to do an update report this fall, so more reports would be greatly appreciated. The calculated amp-hour capacity (CAC) is the best measure we have of the pack's capacity. It correlates well...
  24. tomsax

    Log Parsing tool available

    I just did a 64-bit build of my parser. I had to change the compiler setting and fix one warning. It's available from my VMSParser web page. VMS Log Parser for Tesla Roadster Thanks to Steve Casner for a quick second test of the new build. Let me know if there are any issues.
  25. tomsax

    Open Vehicle Monitoring System

    You can also clear out the most important personal information via SMS or with the smartphone apps. If you are set up to send text messages to your device, there are four interesting commands that set personal information: PASS, MODULE, SERVER and ACC (firmware 2.5.1 or later). See appendix A...
  26. tomsax

    Charging at Campgrounds and RV Parks

    I'm not assuming all or most RV parks have outlets wired this way. That's not what I said. In fact, I've found the opposite. I haven't tried hundreds of RV parks, more like a dozen, and only had this experience at one park. The manager had no idea the outlets were wired wrong. Read about RVs...
  27. tomsax

    Charging at Campgrounds and RV Parks

    The Tesla UMC works just fine on a 120V outlet using the proper adapter. It should therefore work with a TT-30. Someone told me they had done this recently, perhaps @DaveD. If you use the adapter mentioned above that makes a TT-30 look like a NEMA 14-50, then plug in the UMC with the NEMA 14-50...
  28. tomsax

    Roadster 3.0

    Maybe they will plug OVMS back in after they are done using that port to update the firmware and do any data analysis needed.
  29. tomsax

    Roadster 3.0

    Hi Curt, That sounds like your car has the new battery but perhaps not the new firmware. Maybe they upgrade the firmware after they have installed the new battery and done some testing/charging. I'm sure they won't give you a v3 battery that doesn't have the increased capacity. It's probably...
  30. tomsax

    Roadster 3.0

    Roadster owners who do the upgrade get a plaque on the rear that says R80. I take that to mean the stated capacity is 80 kWh. I have no idea if that's rated capacity by the manufacturer or usable capacity as controlled by the Roadster's firmware. According to survey data from two owners (plus...
  31. tomsax

    Roadster 3.0

    Energy in from the wall can be computed from the log file. Also interesting would be to get total energy out from the pack on a complete discharge, which can also be computed from a log file. My log parser does this math so anyone who has done a full charge/discharge cycle can get the numbers...
  32. tomsax

    Can I use the Tesla UMC to charge my Chevy Volt?

    Here's a statement that is more clear and explanatory, and gives context for the list of vehicle charge limits later on the page. When installed with a 100-amp circuit, J-Wall provides the maximum amperage allowed by the J1772 standard (80A) to support full-speed Level 2 charging for any...
  33. tomsax

    Can I use the Tesla UMC to charge my Chevy Volt?

    You are right Tony, calling it "a little sleazy" was overly harsh. My only objection was to this sentence which could be misleading to people who don't understand that charge rate is limited by both the car and the station. J-Wall provides the absolute fastest way to charge ANY vehicle at home...
  34. tomsax

    Can I use the Tesla UMC to charge my Chevy Volt?

    The QuickChargePower ad seems a little sleazy to me. For any vehicle other than a Tesla, the 80A charging station is no faster than a 32A charging station. ClipperCreek sells those for about half the cost (HCS-40, $565). If you have a Model S/X or Roadster, then you're better off with the...
  35. tomsax

    Open Vehicle Monitoring System

    I just updated my OVMS Hologram page with more info on my data use for the first month and an analysis of the Hologram data plans. The short version is: I recommend you choose the Pay-As-You-Go plan, avoid using text messages, and monitor your monthly data use until you have a feel for how much...
  36. tomsax

    Open Vehicle Monitoring System

    I've updated my OVMS web API Perl script to extract the odometer and CAC from the server records. To use it, download the zip archive, open up ovms.pl, fill in your OVMS account username, password and vehicle identifier, then run the script as "ovms.pl s" to download and display the server...
  37. tomsax

    Odd charging behavior (seen in logs)

    Hi Steve, In your log file from August, all the VINF records in the permanent section showing firmware version 3.7.1 have invalid time stamps (in 2033), so they get ignored in the summary produced by the -b flag.
  38. tomsax

    Odd charging behavior (seen in logs)

    Grepping for "firmware" just pulls the line for the vehicle information records from the summary table. A better way to look at your firmware version is to look at all of the vehicle information records, paying attention to the dates. For example: VMSParser -p -r VINF example.tar I'll bet...
  39. tomsax

    Open Vehicle Monitoring System

    Yesterday, I got a Hologram SIM for testing. It was really easy to set up an account and swap OVMS to use the new SIM. It's been less than 24 hours, but it seems to be working well so far. I don't think there's a way to tell if it's using AT&T or T-Mobile, so I can't shed any light on MPT's...
  40. tomsax

    Waiting on part and Tesla service center won't charge the battery

    We recently replaced the coolant pump in our v1.5 Roadster. I wrote up the process here: Tesla Roadster Coolant Pump Failure The failure might be the connector, so I'd order one of those as well. The info is in the write-up. If you have 50 miles of range, that should give you at least a month...
  41. tomsax

    Log Parsing tool available

    I just did a minor update. There's more than enough there to write a parser. I'm always happy to answer any questions you have, just send me a note.
  42. tomsax

    Log Parsing tool available

    I don't have any specific plans to update it. I don't hear much from people reading it. Is there something specific you had in mind?
  43. tomsax

    Log Parsing tool available

    Do you use Mac or Windows? Have you tried either of the graphical parsers? Honestly, I wouldn't bother learning how to use the command line just to run my parser unless you have a specific need.
  44. tomsax

    Log Parsing tool available

    Color me biased, but I think the best resource is my page on extracting and parsing Roadster log files. It includes links to all of the log parsers I know about, including graphical apps for Windows and Mac. The graphical apps are an easier way in if you don't need the detail available from the...
  45. tomsax

    Log Parsing tool available

    VMSParser 1.1.5 is now available with these minor updates: note when a charge or drive segment crosses a daylight saving time transition add example to show how to extract records from permanent section (-p) add CAC to output for battery data summary (-b)
  46. tomsax

    Tesla Model S Survey by Plug In America

    I just updated the Model S survey to ask about body style when the model year is 2016. For other model years, it gets filled in with the obvious value. I also added a question about wheel size, as that seems to be a factor in efficiency.
  47. tomsax

    Roadster 3.0

    A photo would be nice, but just getting an owner report of "XXX ideal miles at least 10 minutes after the completion of a range mode charge" would be a huge step forward. In fact, I'd prefer that to a photo since a photo might have been taken immediately after the range mode charge completed...
  48. tomsax

    Tesla Model S Survey by Plug In America

    I've included all of the single drive options, 40, 60, 70, 85 and 90, in the list.
  49. tomsax

    Tesla Model S Survey by Plug In America

    It's odd that there's no information on the plain 70 on fueleconomy.gov. There was apparently a plain 90 that was available for order at one point, but it's not clear if any were sold. I also found Tesla's statement that the 90 kWh models get "about 6%" more range that the equivalent 85 kWh...
  50. tomsax

    Tesla Model S Survey by Plug In America

    Charts Update There's a new version of the charts pages available. The pack capacity chart is now broken up into finer granularity so the dual drive and performance variants are in different groups. Not all of the groups have enough data to make a trend line meaningful, so only some of the...