Search found 373 matches

by asavage
Mon May 19, 2025 3:41 pm
Forum: Batteries and Charging
Topic: Chademo Controller Development
Replies: 513
Views: 218300

Re: Chademo Controller Development


I request your contact email, if possible for you.

In forums, it's considered best to keep technical conversations in the open, rather than private. Perhaps you could offer to start a thread that contains your question(s), or if they're related to this thread, just post them here?

If you have ...
by asavage
Mon May 19, 2025 3:34 pm
Forum: Projects
Topic: [WIP]Toyota RAV4 EV (2012-2014): Add CCS DCFC
Replies: 32
Views: 19819

Re: [WIP]Toyota RAV4 EV (2012-2014): Add CCS DCFC

Thanks for that info, Alex.
by asavage
Tue Apr 29, 2025 4:48 am
Forum: Tesla
Topic: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance
Replies: 525
Views: 569324

Re: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance

This might be a good place to crosspost a link for an LDU issue that might be becoming more prevalent nowadays, with the aging LDU population: the LDU Control PCB has a resistor network consisting of R105/R106, 40.2Ω SMD resistors, that link chassis ground and encoder ("speed sensor") grounds. One ...
by asavage
Thu Apr 10, 2025 6:31 pm
Forum: Batteries and Charging
Topic: NACS Inlet Port options
Replies: 14
Views: 14450

Re: NACS Inlet Port options

I haven't found a generic J3400 charge inlet with locking, but then I haven't been looking since I posted over a year ago. I expect that more scrapyard options -- besides Tesla -- will become available shortly, as several mfgrs are now selling BEVs with J3400 charge inlets in the NA market. I've ...
by asavage
Thu Dec 26, 2024 6:04 pm
Forum: Batteries and Charging
Topic: BMW i3 CCS/charge port controller
Replies: 1236
Views: 6864732

Re: BMW i3 CCS/charge port controller

The image supplied by @Raine in the Wiki shows the 1k/10k lock state resistors as internal to the i3's charge port. I've sold my i3 charge inlet; can someone verify this?
by asavage
Tue Nov 12, 2024 11:18 pm
Forum: Batteries and Charging
Topic: Drawing power out of CCS port (V2x, inverse charging, bidirectional CCS)
Replies: 132
Views: 117626

Re: Drawing power out of CCS port (V2x, inverse charging, bidirectional CCS)

https://openinverter.org/forum/download/file.php?id=34219&t=1

In case the FC contactor weld issue is not transitory . . .

IDK about the M3, but the FC contactors are very easy to access for replacement on the older Model S; inside the rear HVJB, under the back seat. 10 minute job. Lots of ...
by asavage
Wed Oct 16, 2024 12:51 am
Forum: Projects
Topic: [WIP]Toyota RAV4 EV (2012-2014): Add CCS DCFC
Replies: 32
Views: 19819

Re: [WIP]Toyota RAV4 EV (2012-2014): Add CCS DCFC



Install new DCFC leads (charge port to new HVJB)
Install new HVDC leads from charge port's leads to HVJB location May involve dropping the HV battery (840 lbs) a few inches Possibly, the leads may be run down the unused trans/driveshaft tunnel


I had the nearly-ubiquitous HV contactor ...
by asavage
Wed Oct 02, 2024 8:02 pm
Forum: Batteries and Charging
Topic: QCA7000 Foccci+Clara User thread
Replies: 229
Views: 113706

Re: QCA7000 Foccci+Clara User thread


From my understanding the PP resistor of 1k5 shall be in the plug, without the possibility to deactivate this. It would be quite dangerous if the plug is in but the vehicle does not see it. Could you check at the plug with a multimeter? I've never seen other values than 1k5 on public chargers.
We ...
by asavage
Thu Sep 26, 2024 9:46 pm
Forum: Batteries and Charging
Topic: Develop a QCA7000 board?
Replies: 702
Views: 9688951

Re: Develop a QCA7000 board?


Digikey recommended this to me as an alternate when the other one was OOS. It was cheaper, and now that I have it in my hands I can verify it fits the connector. Drawing sheet also seemed to have identical critical dimensions when I checked it.
https://www.digikey.ca/en/products/detail/amphenol ...
by asavage
Tue Sep 17, 2024 9:43 pm
Forum: Classifieds
Topic: Nissan Leaf Motor, Yaris Inverter and logic board [SOLD]
Replies: 3
Views: 15803

Re: Nissan Leaf Motor, Yaris Inverter and logic board [SOLD]

You might mark the thread closed "[SOLD]". There's a button somewhere at the top of the page that'll do it, for the OP only, I forget exactly where.
by asavage
Fri Sep 13, 2024 3:35 pm
Forum: Projects
Topic: [WIP]Toyota RAV4 EV (2012-2014): Add CCS DCFC
Replies: 32
Views: 19819

Re: [WIP]Toyota RAV4 EV (2012-2014): Add CCS DCFC

As with QCC's JDemo, the car will have to be in Ready mode, as the BMS controls the contactors and the BMS will only close them when its happy. QCC's contractor was unable to persuade the BMS to close the contactors without being in Ready, though I'm planning on looking at this independently; as the ...
by asavage
Fri Sep 13, 2024 1:36 am
Forum: General
Topic: EV car conversion hardware
Replies: 279
Views: 2459523

Re: EV car conversion hardware

The early Tesla pumps, as used on the RAV4 EV, have a regular failure pattern. They don't leak, but they do stop pumping (either not running, or running too slowly, IDK). I've read about several failures of the early Tesla pumps, but none were for leakage. Failures are common, though not ...
by asavage
Thu Sep 12, 2024 1:00 pm
Forum: Projects
Topic: [WIP]Toyota RAV4 EV (2012-2014): Add CCS DCFC
Replies: 32
Views: 19819

Re: [WIP]Toyota RAV4 EV (2012-2014): Add CCS DCFC

Arlin wrote: Thu Sep 12, 2024 3:57 am Did you figure out where to tie into the DC pack voltage?
See Post 1, "New HVJB, Part 2".

I'll be pushing power back to the battery via the leads that run from the HV pack to the LDU. 50kw max.
by asavage
Sun Aug 04, 2024 12:50 am
Forum: Tesla
Topic: Tesla Model S Shunt
Replies: 3
Views: 3770

Re: Tesla Model S Shunt

nilsvr wrote: Fri Jun 03, 2022 7:45 am I also have the contactors from an I3 Battery pack and will check if they have an economizer.
For those who follow: the i3 LIM sends PWM to non-economized contactors.
viewtopic.php?p=28239#p28239
Image
by asavage
Sun Aug 04, 2024 12:38 am
Forum: Batteries and Charging
Topic: QCA7000 Foccci+Clara User thread
Replies: 229
Views: 113706

Re: QCA7000 Foccci+Clara User thread


I'm guessing it tries to communicate using 5% CP with Tesla's proprietary protocol first, and if the car accepts that, it stays in it. If the car doesn't accept it, then it will switch to standard CP.


I found where I'd read something on this, in a discussion of DCFC and how Tesla designs their ...
by asavage
Sun Aug 04, 2024 12:22 am
Forum: Getting Started
Topic: Contactor control during charging/driving
Replies: 16
Views: 11099

Re: Contactor control during charging/driving


I have contactors out of an I3 (that should be fine without an economizer circuit)

BMW i3 LIM sends PWM to the i3's contactors.
https://openinverter.org/forum/viewtopic.php?p=28239#p28239

https://openinverter.org/forum/download/file.php?id=9621&t=1

If you're using i3 contactors, you'll have ...
by asavage
Wed Jul 31, 2024 7:06 am
Forum: Batteries and Charging
Topic: QCA7000 Foccci+Clara User thread
Replies: 229
Views: 113706

Re: QCA7000 Foccci+Clara User thread


I'm guessing it tries to communicate using 5% CP with Tesla's proprietary protocol first, and if the car accepts that, it stays in it. If the car doesn't accept it, then it will switch to standard CP.
No data, but that's similar to how the Tesla Wallbox operation (GEN1) was described to me years ...
by asavage
Sun Jul 28, 2024 6:54 pm
Forum: Tesla
Topic: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance
Replies: 525
Views: 569324

Re: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance

I bought a gallon of "waterless coolant" that is pretty much just glycol, but I never got around to testing it in various ways -- it's still on a shelf in my garage. I had the same thought as you: minimize the damage from water. But just going "dry rotor" is a better option, IMO -- at least, that's ...
by asavage
Fri Jul 12, 2024 4:14 pm
Forum: Tesla
Topic: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance
Replies: 525
Views: 569324

Re: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance

Yes, it's been considered. Over on the TeslaMotors forum.

QCC's coolant delete manifold is supposedly equipped such that you could circulate eg ATF instead of a water-based coolant. AFAIK, nobody's reported actually doing that.

Meanwhile, dozens or hundreds of the SS formed cap plugs have been ...
by asavage
Thu Jul 04, 2024 3:02 pm
Forum: Tesla
Topic: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance
Replies: 525
Views: 569324

Re: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance

Revolt in Arizona says they've got https://www.myrav4ev.com/threads/another-doa-rav-time-to-troubleshoot-seems-obc-fuses-are-fine.2635/post-31095 .

I can't get into the specifics, but we found a solution that dissolves the crystallized coolant without affecting the stator potting material nor the ...
by asavage
Wed Jun 19, 2024 3:06 pm
Forum: Batteries and Charging
Topic: Drawing power out of CCS port (V2x, inverse charging, bidirectional CCS)
Replies: 132
Views: 117626

Re: Drawing power out of CCS port (V2x, inverse charging, bidirectional CCS)

image.png
Please use forum's native attachment schema rather than hotlinking.

Image hosting sites die off all the time (see: PhotoBucket).
by asavage
Wed Jun 12, 2024 4:15 pm
Forum: Tesla
Topic: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance
Replies: 525
Views: 569324

Re: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance

I haven't installed your seal, and I'm probably not going to, since I've gone to dry rotor. So, no feedback from me :(
by asavage
Mon Jun 10, 2024 6:47 pm
Forum: Tesla
Topic: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance
Replies: 525
Views: 569324

Re: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance

Nice idea! Not in your USD$50 budget (unless you have a lathe already, and most people do not).

If I own a CNC mill, then a bespoke coolant manifold is "simple and cheap", but for the typical person this is not the situation.

If I own a lathe, etc.
by asavage
Mon Jun 10, 2024 4:31 pm
Forum: Tesla
Topic: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance
Replies: 525
Views: 569324

Re: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance

I don't know how you can have all these parameters in a single solution:

Retain stator coolant flow Discontinue rotor coolant flow Reversible (non-destructive) modification of OEM coolant manifold (optional) Retain flyover tube coolant flow

A stator coolant feed adapter is simple enough to make ...
by asavage
Mon Jun 10, 2024 3:24 pm
Forum: Tesla
Topic: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance
Replies: 525
Views: 569324

Re: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance

muehlpower wrote: Mon Jun 10, 2024 3:20 pm Has anyone thought about a simple bolt on coolant delete solution that doesn't require the tube to be sawn off and is reversible?
Covered in the first post of this thread. There are several on the market, QCC, Revolt, etc. Expensive.