January 2014 - OvmsDev - Open Vehicles

OVMS logo
by Mark Webb-Johnson 06 Jun '17

06 Jun '17

We need to change the OVMS logo, to better reflect the vehicle independence. The existing logo is too much Tesla. Felix has kindly prepared a couple of options for us, attached below. My preference is for the one with the car outline (even though it retains a hint of Tesla), as it emphasizes the vehicle comms aspect. This is quite urgent, as the Teslive people are pushing for artwork. What do you guys/gals think? Regards, Mark

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Nissan Leaf
by Mark Webb-Johnson 22 Feb '14

22 Feb '14

Attached is a first-run at Nissan Leaf support, with a few values read from the bus passively: Speed Headlight status Park / Drive status SOC I’ve also pushed this to github (along with a large number of other small changes). The Nissan Leaf support is proving really hard for me. I don’t have the car, or much CAN bus data, and the public documentation is contradictory and incomplete. End result is that I am just guessing, and completely unable to test my guesses. Anyway, please try it and let me know if any of those figures show up with any sense of accuracy at all. Going forward, I really need some CAN bus dumps from a Nissan Leaf. Specifically: Car idle Car plugged in and charge started Car charging Charge interrupted Driving Driving as close to a constant speed of 10 kph as possible Driving as close to a constant speed of 20 kph as possible Driving as close to a constant speed of 30 kph as possible Car parked, but on Car parked, coming out of park into drive gear Car stopped, coming out of drive gear into park Car in park gear, then handbrake applied For each of those, both with and without a T connector and LeafSpy running would be helpful. I’m guessing the logs can be gotten from monitor-all mode with an OBDII adaptor. There is not too much data on the can bus and that should be fast enough. If anyone can help with the above, please let me know. Regards, Mark.

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Re: [Ovmsdev] Twizy45 testing needed
by Julien (JaXX) Banchet 04 Feb '14

04 Feb '14

Hi all, Hi Michael, Listen, first things first: Wow, what a f*cki’n crazy great job you’ve done there !!! Now: well, works as expected on my Twizy45, Tried these on a very short run: POWER 120 115 110 (I believe I feel a slight difference, but not that obvious) SPEED 60 75 (didn’t have any slope to go beyond, got up to 60 neat and fast, kind of surprising/scary at first) RECUP 27 42 Ok, Recup: 27 instead of the default 21 (on the T45) is sensible, at the limit of slowing down a bit to fast for the following cars without a brake light 42 on brake is scary: you’re already at 27, once you barely touch the brake, 42% recuperation kicks in after half a second, so you get your expected friction-brake slowdown and boom, an extra slow down from recuperation… 42 is really too agressive, making an in between/modulated foot controlled slowdown nearly impossible… Will try 25 35 (Delta of 10% instead of 15%) We’ll see… Again: w00t! in town the crazy parisians will be less tempted to push me over the road as long as I can keep up with their illegal speeds ! (note: This is to be done at your own risk, mostly legal) (sorry for the lack of mail quote, I deactivated the digest mode which is kind of a pita) -- Julien (JaXX) Banchet

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Ampera Range
by Paul Churchley 29 Jan '14

29 Jan '14

Just a bit of feedback regarding the range displayed on the phone app for the Ampera. A full charge currently displays a range of about 22 miles. This is probably a bit over half the real range and well below the estimated range on the car dash.

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Re: [Ovmsdev] Twizy45 testing needed
by Julien (JaXX) Banchet 26 Jan '14

26 Jan '14

Hi Michael, With a bit of luck I’ll give it a run on my 45 later today/early in the week, gotta get my pickit back from my storage facility and give the car a charge :) Wasn’t able to compile it myself, linking the binary didn’t work out *bummer* probably screwed it up somewhere, so HUGE thanks for the zip, and Enormeous Thanks overall ! :) Mfg, JaXX —— ... Unfortunately, the Twizy45 owner who provided the data readout is currently unable to do the test. ... Regards, Michael -- Julien (JaXX) Banchet

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Twizy45 testing needed
by Michael Balzer 25 Jan '14

25 Jan '14

SEVCON configuration support for the Twizy 45 is basically complete, but untested. Unfortunately, the Twizy45 owner who provided the data readout is currently unable to do the test. So, if there are T45 drivers here willing to test, please use the attached firmware build. To check the source, see: https://github.com/dexterbg/Open-Vehicle-Monitoring-System FYI: - max speed configurable is 78 kph - max torque is 36 Nm (default 32,5) - power levels of 130% should be possible, but watch temperatures The ZIP contains a script of test commands with expected results to check the basic operation before test driving. Regards, Michael -- Michael Balzer * Paradestr. 8 * D-42107 Wuppertal Fon 0202 / 272 2201 * Handy 0176 / 206 989 26

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i-Miev/C-Zero/iOn
by Thomas Bergo 24 Jan '14

24 Jan '14

Hi As a owner of a i-Miev I'm interested in OVMS support for the i-Miev/C-Zero/iOn EV. Has anyone looked into supporting those EV? I'm planing to start looking into adding support for those EV. And asking for help to add a vehicle plug-in module stub for those cars, so that naming and so on is correct. Best regards Thomas B

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Github Re-Organisation
by Mark Webb-Johnson 21 Jan '14

21 Jan '14

Github now has a 'Organisations' feature that seems better suited to what we are doing. Accordingly, I've created an organisation 'openvehicles', and migrated the four main repositories to that new organisation. The github URLs are now: https://github.com/openvehicles/Open-Vehicle-Monitoring-System https://github.com/openvehicles/Open-Vehicle-Android https://github.com/openvehicles/Open-Vehicle-iOS https://github.com/openvehicles/CAN-RE-Tool Looks much nicer, and the most important point is that organisations can have multiple owners. Supposedly the old 'markwj' repositories will continue to work (and be redirected). What is broken (probably) is the permissions system. I'm setting up teams for this now, and will send out invites to / add the previous users with write-access, to join those teams. I should be done today, and then it should be back working again. Regards, Mark. P.S. This is important, of course, in case I get run over by a bus. That said, if it happens I sure hope it is at least an electric bus ;-)

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Motor temp does not support negative numbers (car_tmotor)
by Håkon Markussen 20 Jan '14

20 Jan '14

Hi (Mark). In ovms.h the motor temperature is defined as unsigned char (non-negative): extern unsigned char car_tmotor; // Tmotor Currently the weather is cold in Norway (-15 C) and I noticed that motor temp was 244C. Is it possible to update the car_tmotor to extern signed char car_tmotor; // Tmotor in ovms.h? Best regards Håkon

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Twizy controller configuration / CANopen SDO protocol
by Michael Balzer 18 Jan '14

18 Jan '14

Hi everyone, sorry for dropping behind/off last months, lots of work. I've not been able to catch up on the framework advances yet, but nevertheless wanted to announce a major Twizy update I'm currently working on. This update enables access to the SEVCON controller configuration of the Twizy. Low level commands allow read and write access to all SDOs. Macro commands allow to easily change common settings like maximum speed, maximum torque, power and recuperation levels and drive profile characteristics. There is a potential benefit for other vehicles from this development: I've done a basic CANopen SDO protocol implementation for this. The implementation is specific to the Twizy only because it's limited to addressing just node #1 and currently only supports expedited SDO transfers, not segmented. The node id could easily be made variable, and segmented transfers should be not much of a problem. It still is nowhere near a complete CANopen protocol implementation, but allows SDO reading and writing. Tell me if this sounds useful for other vehicles. As I've not yet integrated your latest work, I've pushed this into my Github repository first: https://github.com/dexterbg/Open-Vehicle-Monitoring-System I'll also wait for some more user feedback before going on, and I also want to implement support for the Twizy 45 before merging this in. Just wanted to let you know in case you wonder about rising OVMS hardware sales lately ;-) Oh, and I wish you all a happy new year! Regards, Michael -- Michael Balzer * Paradestr. 8 * D-42107 Wuppertal Fon 0202 / 272 2201 * Handy 0176 / 206 989 26

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