Kinda related:
It's tricky to interrupt large DC currents, to effectively and reliably quench the plasma arc. Various magnetic and air movement techniques are used.
Search found 339 matches
- Tue Aug 01, 2023 8:49 pm
- Forum: General
- Topic: What is Protistor and what it does?
- Replies: 17
- Views: 4993
- Tue Aug 01, 2023 8:15 pm
- Forum: Charging
- Topic: Open source CCS using AR7420
- Replies: 421
- Views: 304145
Re: Open source CCS using AR7420
Oh, goody, another variant. It looks more-or-less like catphish's and one of mine: TL-PA4010_30b.jpg I think you can figure out the 1:1 correspondences for much of that, just visually. The bottom side, maybe not so much. Once the big stuff is removed (esp. the transformer), it likely doesn't matter ...
- Tue Aug 01, 2023 7:15 pm
- Forum: Tesla
- Topic: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance
- Replies: 492
- Views: 339659
Re: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance
When you're installing a Speedi-Sleeve, it's to correct surface imperfections that would cause a seal to not work well. So I assume that the sleeve will not have great contact with the shaft, and will have the worst contact in exactly the area where you would want the most contact! I'm not saying th...
- Tue Aug 01, 2023 6:22 pm
- Forum: Tesla
- Topic: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance
- Replies: 492
- Views: 339659
Re: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance
Fried IGBTs Finally, I've seen this LDU->1970s American Muscle car build that fired an IGBT. Author claims can happen when power drops out while driving. I'm assuming this uses non Tesla control board that most custom EV builders are using. https://youtu.be/pJdMKujPyT8?t=227 Opening the HV power ci...
- Tue Aug 01, 2023 6:13 pm
- Forum: Tesla
- Topic: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance
- Replies: 492
- Views: 339659
Re: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance
As I have already written, I am in negotiations with a seal manufacturer in Germany. He sent me an interesting draft. I have pointed out that a Speedi Sleeve may be used. He also takes into account the slightly larger diameter and the limited length. He also has reservations about using Loctite bec...
- Tue Aug 01, 2023 6:05 pm
- Forum: Tesla
- Topic: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance
- Replies: 492
- Views: 339659
Re: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance
Deciding to leave the retaining compound out isn't a great idea. The aluminum case expands much more than the steel in the bearing as they heat up. It can get loose / spin if you skip it. In fact, heating the case is the easy way to get stuck bearings out typically. To clarify again, Howard found w...
- Tue Aug 01, 2023 6:02 pm
- Forum: Tesla
- Topic: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance
- Replies: 492
- Views: 339659
Re: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance
The air I asked about was to allow coolant to drain out. Meaning that trigger wheel void area is able to easily suck air in from above the coolant that you want to drain. If the water manifold is siliconed in, it likely can't get air in the dry side unless it shares a breather / passageway. The ass...
- Tue Aug 01, 2023 2:58 am
- Forum: Tesla
- Topic: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance
- Replies: 492
- Views: 339659
Re: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance
The thing I don't like about the trapped-moisture-between-lips-caused-rust-there theory is that there is a finite amount of oxygen that can be trapped, and rusting should cease once that oxygen has been depleted by . . . oxidation. The amount of rust I see seems inconsistent with trapped moisture . ...
- Mon Jul 31, 2023 9:26 pm
- Forum: Charging
- Topic: NACS Inlet Port options
- Replies: 9
- Views: 4467
Re: NACS Inlet Port options
Nope, I have a GEN1 Model S OBC sitting on the shelf next to me, it's hardware-identical inside to my RAV4 EV's, I've had them both apart, and I bought a Model S GEN1 Rear HVJB to which the OBC attaches, and that's how it works: the OBC can handle AC or HVDC on its input. Operation is described in T...
- Mon Jul 31, 2023 5:59 pm
- Forum: Charging
- Topic: NACS Inlet Port options
- Replies: 9
- Views: 4467
Re: NACS Inlet Port options
you will need contractors to cut you AC lines when configured to DCFC In my case, I don't need to cut off AC when DCFC, because the Tesla OBCs always have tolerated HVDC at their AC input. That's the way the Model S (and our RAV4 EVs, which use the same OBC) do it. So when DCFC, just need to close ...
- Mon Jul 31, 2023 5:31 pm
- Forum: Charging
- Topic: NACS Inlet Port options
- Replies: 9
- Views: 4467
Re: NACS Inlet Port options
I just now purchased a 1005612-00-G (early Model S Charge Port), to hang in my garage alongside my Taycan port . . . sold the BMW i3 port last week.
I might collect the whole set, at this rate
I am now thinking along the lines of fab'ing a box around it for my project.
I might collect the whole set, at this rate
I am now thinking along the lines of fab'ing a box around it for my project.
- Mon Jul 31, 2023 4:14 pm
- Forum: Charging
- Topic: NACS Inlet Port options
- Replies: 9
- Views: 4467
Re: NACS Inlet Port options
The earliest Model S (2012-early 2013) used SWCAN rather than PLC for comms, but that changed sometime around Tesla entering the EU market (Norway etc. in Aug2013; UK in Jun2014) and having to have CCS2 by their regulations, so quite a while ago. I *think* that SCs have been provisioned for CCS for ...
- Mon Jul 31, 2023 5:42 am
- Forum: Projects
- Topic: [WIP]Toyota RAV4 EV (2012-2014): Add CCS DCFC
- Replies: 25
- Views: 7932
Re: Toyota RAV4 EV (2012-2014): Add CCS DCFC: Inlet location
The Charge Port Door lock cable tab: Charge_Port_RAV4_EV_22b.jpg If I had one sage bit of advice here, it would be to try to keep your hand on the lock cable after turning it 90° and releasing it from the black retainer. I let mine get away from me, and it was ten minutes with a bent coathanger to p...
- Mon Jul 31, 2023 5:10 am
- Forum: Projects
- Topic: [WIP]Toyota RAV4 EV (2012-2014): Add CCS DCFC
- Replies: 25
- Views: 7932
Re: Toyota RAV4 EV (2012-2014): Add CCS DCFC: Inlet location
I removed the OEM J1772 charge inlet and took a good look at the layout of the Charge Port harness. The general run of this harness is: J1772 inlet at the LR Inside the LR wheel well, across the top and down the front. The cables are in a hard-plastic carrier here, and covered by a thin mud protecto...
- Sun Jul 30, 2023 2:49 pm
- Forum: Charging
- Topic: NACS Inlet Port options
- Replies: 9
- Views: 4467
NACS Inlet Port options
For a while there was considerable effort being made to adapt the Model 3 inlet port and controller for DCFC: https://openinverter.org/forum/viewtopic.php?t=1040 The landscape has changed, we have other CCS add-on options, but now in the US NACS is ascendant. If I wanted to install a NACS inlet, for...
- Sun Jul 30, 2023 4:02 am
- Forum: Toyota/Lexus
- Topic: ID a power connector (Toyota Prius & RAV4 EV, Nissan Leaf, and Tesla Model S related)
- Replies: 3
- Views: 3216
ID a power connector (Toyota Prius & RAV4 EV, Nissan Leaf, and Tesla Model S related)
I'm trying to ID this connector, as used on these vehicles: Toyota RAV4 EV 2013-2014, G9081-0R013 Charge_Port_RAV4_EV_17-1b.jpg Toyota RAV4 hybrid 2018-on ( ref ): 53e434bc-5067-4ec8-902f-bb646f62995a.jpg Toyota Prius 2012-2017 A/C compressor harness 82122-52070 ( ref. ): s-l1600.jpg Nissan Leaf 201...
- Sat Jul 29, 2023 4:27 pm
- Forum: Tesla
- Topic: Help trying to get my LDU to spin for the first time
- Replies: 7
- Views: 941
Re: Help trying to get my LDU to spin for the first time
I'd like to contribute my own thoughts to the FAQ as there's a few things that I struggled with that may help others. Do I need special access? Where is the best spot... On here or github? Perhaps the Wiki? https://openinverter.org/wiki/Tesla_Model_S/X_Large_Drive_Unit_(%22LDU%22)#Encoder_Issues To...
- Fri Jul 28, 2023 8:06 pm
- Forum: Charging
- Topic: Develop a QCA7000 board?
- Replies: 569
- Views: 8096664
Re: Develop a QCA7000 board?
I'm excited about the progress.
I've sent Uwe a little extra this month, for boards or beers or whatever. This is my favourite thread on OI ATM.
I've sent Uwe a little extra this month, for boards or beers or whatever. This is my favourite thread on OI ATM.
- Thu Jul 27, 2023 8:31 pm
- Forum: Charging
- Topic: Chademo Controller Development
- Replies: 511
- Views: 96845
Re: Chademo Controller Development
A CHAdeMo station that's not in working condition? I've never heard of such a thing!
- Thu Jul 27, 2023 2:56 pm
- Forum: Tesla
- Topic: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance
- Replies: 492
- Views: 339659
- Wed Jul 26, 2023 7:49 pm
- Forum: Tesla
- Topic: Telsa LDU HV cables' OD [SOLVED]
- Replies: 32
- Views: 2393
Re: Telsa LDU HV cables' OD [SOLVED]
I've started a Project thread, instead of blogging about it over here in Tesla.
viewtopic.php?t=3952
The cables and enclosure both arrived Saturday
viewtopic.php?t=3952
The cables and enclosure both arrived Saturday
- Mon Jul 24, 2023 4:59 am
- Forum: General
- Topic: EV car conversion hardware
- Replies: 261
- Views: 2027162
Re: EV car conversion hardware
I ended up buying from EV Europe:
https://eveurope.eu/en/product/coroflex-flexible-orange-battery-cable-shielded/
I've got 8m/26'/USD$313 that arrived on my doorstep in the US, seven days after ordering.
https://eveurope.eu/en/product/coroflex-flexible-orange-battery-cable-shielded/
I've got 8m/26'/USD$313 that arrived on my doorstep in the US, seven days after ordering.
- Mon Jul 24, 2023 3:34 am
- Forum: Projects
- Topic: [WIP]Toyota RAV4 EV (2012-2014): Add CCS DCFC
- Replies: 25
- Views: 7932
Re: Toyota RAV4 EV (2012-2014): Add CCS DCFC: HVJB
Tapping the HV rail: Overview of the proposed HVJB The early Model S had LDU HV cables which connected the LDU to a Rear HVJB located within the passenger compartment, under the center of the rear bench seat. Tesla used proprietary EMC cable glands -- which are not available separately from the cab...
- Mon Jul 24, 2023 2:00 am
- Forum: Projects
- Topic: [WIP]Toyota RAV4 EV (2012-2014): Add CCS DCFC
- Replies: 25
- Views: 7932
Re: Toyota RAV4 EV (2012-2014): Add CCS DCFC: OBC mods
In order to eventually make an OBC golem, I need to know more about the OBC. The RAV4 EV's OBC is physically identical to the early Tesla Model S' OBC; only the firmware differs. A few months ago I bought an early Model S GEN1 OBC, and started documenting its physical properties, leading to an OI Wi...
- Mon Jul 24, 2023 1:34 am
- Forum: Projects
- Topic: [WIP]Toyota RAV4 EV (2012-2014): Add CCS DCFC
- Replies: 25
- Views: 7932
Re: Toyota RAV4 EV (2012-2014): Add CCS DCFC: Charge Port
The first CCS part I'd bought was a BMW i3 charge port (CCS1), but the RAV4 EV uses the Tesla Model S GEN1 OBC, which can draw 40A @ 240V, a feature I use frequently at the three EVSEs I have installed at various locations; the i3, like many older EVs, can only draw 32A, so that port was not usable ...