Search found 656 matches

by Isaac96
Wed Aug 04, 2021 9:21 pm
Forum: Getting Started
Topic: Teensy Flexcan Canbus mailboxes
Replies: 6
Views: 2090

Re: Teensy Flexcan Canbus mailboxes

Exactly.

I'm using the version straight from the Teensy installer, which I think is Paul Stoffregen's work.
by Isaac96
Wed Aug 04, 2021 6:52 pm
Forum: General
Topic: Main contactors dropping out when motor rotating, regen.
Replies: 8
Views: 1392

Re: Main contactors dropping out when motor rotating, regen.

Hi Forum. I had an interesting development last evening where my 12v battery dipped under load and caused my main contactors to drop out when braking. Consequently thus generated power (??) from the Tesla had no where to go and destroyed (dramatically) the TVS I had fitted. I sorted the issue with ...
by Isaac96
Wed Aug 04, 2021 6:50 pm
Forum: Getting Started
Topic: Teensy Flexcan Canbus mailboxes
Replies: 6
Views: 2090

Re: Teensy Flexcan Canbus mailboxes

This stuff is pretty complicated! I ended up using setCallback for this purpose. Can1.setRXFilter(0, 0x520, 0x7f0, false);//filter for ISA - this accepts 520 through 52F Can1.setRXFilter(1, 0, 0, false); Can1.setCallback(1, handleChademoCan); And the function that the callback calls back to: void ha...
by Isaac96
Thu Jul 29, 2021 11:02 pm
Forum: Tesla
Topic: TESLA SDU Inverter Temp Derating limit
Replies: 9
Views: 3559

Re: TESLA SDU Inverter Temp Derating limit

I had similar issues with quick overheats. It seems to be a simple ballpark number; raising it to 100 caused me no issues in the short term (as in, made the change last week) and is helping performance. Make sure you don't have any air in the system either!
by Isaac96
Wed Jul 28, 2021 4:39 am
Forum: Tesla
Topic: Tesla Large Drive Unit Support Thread
Replies: 802
Views: 135159

Re: Tesla Large Drive Unit Support Thread

Curl just sends messages or files to a specified URL. In this case, it's sending "DELETE" to the 192.168.4.1 page.
by Isaac96
Wed Jul 28, 2021 3:37 am
Forum: Tesla
Topic: Tesla Large Drive Unit Support Thread
Replies: 802
Views: 135159

Re: Tesla Large Drive Unit Support Thread

Are you on windows? Open up a command prompt (windows search bar) then paste the command in there.
by Isaac96
Fri Jul 23, 2021 7:24 pm
Forum: Tesla
Topic: Dyno Tuning LDU
Replies: 27
Views: 4581

Re: Dyno Tuning LDU

Yup, that would be a blown inverter phase. Blowing while coasting -- that's really weird.
by Isaac96
Fri Jul 23, 2021 3:44 pm
Forum: Tesla
Topic: Dyno Tuning LDU
Replies: 27
Views: 4581

Re: Dyno Tuning LDU

I had similar issues when my Tesla inverter was overheating due to large quantities of air in the loop - it would hit the temperature limit and shut off, then come back on quickly. Might be helpful to take a look at the motor and inverter temps, see if they rise quickly on power?
by Isaac96
Tue Jul 20, 2021 2:59 pm
Forum: Battery Managment (BMS)
Topic: Leaf BMS with other battery packs
Replies: 4
Views: 1675

Re: Leaf BMS with other battery packs

I have a Leaf BMS that i intended to use with different batteries in the stock 96s config, monitoring via Leaf Spy. This news about it not being able to balance is concerning. Any more info Isaac? I used a Leaf BMS for some time with a stock pack. I was never able to figure out exactly how it chose...
by Isaac96
Thu Jul 15, 2021 5:40 pm
Forum: VW (VAG, Volkswagen, Audi, Porsche etc.)
Topic: MEB motor and inverter (ID.3, ID.4, Eniaq, etc.)
Replies: 45
Views: 30002

Re: MEB motor and inverter (ID.3, ID.4, Eniaq, etc.)

arber333 wrote: Thu Jul 15, 2021 1:50 pm Not so fast. I am sure you need VIN from actual ID4 to access those parts.
I checked! Apparently not, they prefer a VIN 'to ensure correct fitment' but there's no issue throughout the order process. I won't actually purchase one (or three) but I got this far.
screenshot.png
by Isaac96
Thu Jul 15, 2021 1:37 pm
Forum: VW (VAG, Volkswagen, Audi, Porsche etc.)
Topic: MEB motor and inverter (ID.3, ID.4, Eniaq, etc.)
Replies: 45
Views: 30002

Re: MEB motor and inverter (ID.3, ID.4, Eniaq, etc.)

ID3 & ID4 They have slight variation in HV batteries, some the same, some different part numbers/prices but the motors are identical. ID3, ID4 & Enyaq, Q4 Etron: Electric drive (includes motor & inverter) = 1EA901131G £2,637.72 PR:N23 (125kw 310Nm) (motor not currently available separat...
by Isaac96
Wed Jul 14, 2021 10:17 pm
Forum: Chevy/Opel/Vauxhall/PSA
Topic: Chevy Malibu Hybrid battery
Replies: 6
Views: 4939

Re: Chevy Malibu Hybrid battery

Orion or Dilithium are where it's at these days. Either will run you $1200 or so for 80 cells. Consider trying to snag a Volt battery instead if you have the space?
Do you have a source for the Malibu battery?
by Isaac96
Wed Jul 14, 2021 1:04 am
Forum: Tesla
Topic: Motor control by torque command
Replies: 5
Views: 1165

Re: Motor control by torque command

Pretty sure it's not quite a 'torque request' in terms of a certain pedal position equals a certain torque -- we hit field weakening and the max torque decreases but the pedal still behaves the same way.
by Isaac96
Tue Jul 13, 2021 7:59 pm
Forum: Chevy/Opel/Vauxhall/PSA
Topic: Chevy Malibu Hybrid battery
Replies: 6
Views: 4939

Re: Chevy Malibu Hybrid battery

Hybrid -- makes sense.
Usable? Not sure. Maybe it's Chevy's limiting so that the battery lasts longer -- it's quite possible that if you are willing to tolerate reduced life you could use at least 1kWh.
by Isaac96
Tue Jul 13, 2021 6:14 pm
Forum: Chevy/Opel/Vauxhall/PSA
Topic: Chevy Malibu Hybrid battery
Replies: 6
Views: 4939

Re: Chevy Malibu Hybrid battery

What's your build? That's a pretty tiny battery - 1.5kWh would get you about 5 miles in anything but a motorcycle. (And only 450Wh is actually usable!!)

Yes, it could probably be charged off 240. You'd need to talk to the BMS, most likely via CAN, to be sure cells stay balanced.
by Isaac96
Fri Jul 09, 2021 4:21 pm
Forum: Charging
Topic: BMW i3 CCS/charge port controller
Replies: 1198
Views: 4876978

Re: BMW i3 CCS/charge port controller

Mhhhh that' might be a challenge I think. The LIM doesn't know it's VIN or the car configuration right now, Charger type etc. the solution might be doable though (grab copy of tools and a i3 etc.) Or the LIM is not that 'smart' and gets it's data all over CAN and will be happy to translate ... 8-) ...
by Isaac96
Wed Jul 07, 2021 1:15 am
Forum: Getting Started
Topic: How to charge HV batteries off car?
Replies: 10
Views: 2752

Re: How to charge HV batteries off car?

As ZooKeeper said. You can either use a proper charger or just a simple lab power supply - those have both current and voltage control so they charge batteries safely, also they're generally useful for EV conversion work.
by Isaac96
Wed Jun 30, 2021 4:16 pm
Forum: Classifieds
Topic: Board clearout
Replies: 8
Views: 1670

Re: Board clearout

I will take a chademo board. Send me your paypal, not sure if I have it?
by Isaac96
Tue Jun 29, 2021 4:10 pm
Forum: General
Topic: Question re./ CANBus Ack conventions
Replies: 7
Views: 1451

Re: Question re./ CANBus Ack conventions

It seems to be low level, yes. A CAN controller can also be configured to 'silent' mode where it will not send ACK bits -- this can be useful if you don't want to disturb a system but still want data. The MCP2515 will go into an error state if it does not receive any ACK bits after 255(?) messages -...
by Isaac96
Mon Jun 28, 2021 3:49 am
Forum: User Interface
Topic: HOWTO: Flashing ESP8266
Replies: 181
Views: 64594

Re: HOWTO: Flashing ESP8266

I'm using Wemos D1 chips, not sure if there are differences.
When you flash, choose "Erase Flash: Sketch + Wifi Settings" -- that may or may not help.
by Isaac96
Fri Jun 25, 2021 12:35 am
Forum: Getting Started
Topic: whats the difference between openinverter and others? - leaf
Replies: 4
Views: 1397

Re: whats the difference between openinverter and others? - leaf

Openinverter is for cool kids who want complete control of the motor. As in, control the power going to each wire. This requires tuning -- lots of it. And often some software work. Resolve and thunderstruck controllers both do CAN control of the original inverter, so they are limited to the OEM powe...
by Isaac96
Thu Jun 24, 2021 3:57 pm
Forum: Tesla
Topic: Tesla Model S Plaid Rear Motor
Replies: 6
Views: 1409

Re: Tesla Model S Plaid Rear Motor

Yep, it looks like Plaid and LR are full of Model 3 inverters and motors -- mostly unmodified besides that high speed rotor. Thank goodness Damien's working on a M3 control solution!
by Isaac96
Wed Jun 16, 2021 7:43 pm
Forum: Battery Managment (BMS)
Topic: Leaf BMS with other battery packs
Replies: 4
Views: 1675

Re: Leaf BMS with other battery packs

Leaf BMS will work for monitoring (its balance capabilities are limited and strange). IIRC all units are the same, there may be some changes in the internal serial communication but CAN seems identical. Connectors and crimps -- generally one just buys a harness off Ebay. Be careful with your cell wi...
by Isaac96
Mon Jun 14, 2021 6:15 am
Forum: User Interface
Topic: HOWTO: Flashing ESP8266
Replies: 181
Views: 64594

Re: HOWTO: Flashing ESP8266

Never mind, I got it! Selected "Generic ESP8266", 4mb flash, and 26mhz flash. Upload succeeded and I can see the page now.
Time for modification now. Yay.
by Isaac96
Mon Jun 14, 2021 3:53 am
Forum: User Interface
Topic: HOWTO: Flashing ESP8266
Replies: 181
Views: 64594

Re: HOWTO: Flashing ESP8266

I'm trying to make my own interface for Chademo controller (slightly modifying the GS450h interface). I have some Wemos D1 clones (the sort which are all over ebay) which are not working well. I am able to write a sketch and get serial communication, but no webpages are showing up. I have the SPIFFS...