Project Lithium Soother Test

Off-topic rather than offesive, I would think.

 

Certainly NOT off topic. The whole thread has become a fight between two "individuals".
blah blah blah blah blah and on and on and on.
Neither producing anything but blah blah blah blah

Both crying they are correct and the other is not. Both crying "proove it". Blah blah blah blah
And neither doing anyting too prove it. blah blah blah blah

 

Interesting you would spin it that way, seeing the wealth of hard technical information one of them has provided.

 

Technical information @AzusaPrius has contributed to this discussion:

...

Technical information @mudder has contributed to this discussion:

...

On the one hand, I've spent several hours now analyzing several NexCell design deficiencies.
On the other hand, @AzusaPrius has contributed zero first principal analysis, and (as of yet) chooses not to perform the simple test I proposed in their car. That test would only take a couple minutes to perform, and yet here we are days later with zero test results. It's almost like @AzusaPrius is arguing in bad faith.

 

If we were ganging up, we'd point out "I" is a subject pronoun and "me" is an object pronoun, so "Azusa and me" is grammatically correct.

If we were really ganging up, we'd point out that that is taught in junior high school.

 

Pointing out safety issues to protect consumers is about as far from "attacking in bad faith" as one can get.

Why not name your price?
Rationale: I predict that you'll scoff at any price I offer.

I still don't understand why you wouldn't jump at the opportunity to perform a simple test (e.g. remove service plug with ignition on, that's it), that could disprove this side-quest you've embarked on over the past week. This test would take you less time than even a single reply here in this thread.

I have access to a Gen3 Prius here in Chattanooga. Not sure if the owner would allow me to perform this test, but I'll ask next time I visit them (in a couple weeks, to test out my first attempt at replacing the BSU).

At this point I'm not sure what lab test I could perform that you would acknowledge had any scientific merit (this is a 'you' problem).

Bless your heart.
Please post an example where I haven't acted like an adult.

 

This sounds like a good opportunity. Has the owner got a Nexcell pack?

It sounds like (if I haven't been thrown too far off by the nontechnical distractions) there are a couple of tests that have been mentioned that could be worth checking in an actual car:

1. The "is the soother damaged by trying to make READY with the service plug out?" test.
2. The "what current can flow between the + and − terminals with the service plug out and soother in place?" test that I proposed in #181.

(1) is a test you've already done on the bench, so I personally wouldn't be clamoring to do it again in a car just to convince me physics hasn't changed. But it should be easy enough to repeat the test in a car if that's important to somebody. It should be pretty much the same test even if the car has a stock pack rather than a Nexcell. A possible difference that's occurred to me concerns how the Nexcell module 5 (with the extra terminals) is built. On a stock pack, the service plug terminals split a two-module block, so with the service plug pulled, each remaining 'half' of the stack is left with one nonparticipating module; the soother should see the voltages of an 8-stock-module (4-Nexcell-module) stack and of an 18-stock (9-Nexcell)-module stack on the other.

I'm guessing the Nexcell module 5 service plug terminals don't split it exactly in half like that (it's 5s, right? so it couldn't) but after a moment's thought I've decided that doesn't matter; the full voltage of module 5 is nonparticipating with the service plug out, no matter where the plug splits it, and there's no material difference in the soother inputs whether it is plugged into a stock or Nexcell pack.

The main thing that might make this test sort of academic is that it's a test of what happens when you try to go READY with the service plug out ... and what's supposed to happen in that case is the car says P0A0D and never tries to go READY. So the chance of a soother getting damaged that way may be remote in practice.

(2) is a test that hasn't been done yet. It can be worked out mathematically, which you've made more of a start on than I have, but the empirical test with some resistors and an ammeter just seems easier to me. (So, it's not that I believe math doesn't work or something, I just get impatient sometimes if there's a 5-minute empirical way to get the same clear answer.)

Here again, I think I've convinced myself that whether the soother is installed on a Nexcell pack or a stock pack can't make a difference to this test. You may want to check my reasoning on that.

So I think it could easily be done on the gen 3 you have access to. Or by anybody else with a Prius and a soother. Or by anybody else with a Prius battery lying around, and access to a soother.

So it might not be worth chasing any harder after Azusa's 'terms' for doing (either) test, given that Azusa is by no means the only person who could do it.

Also, you probably don't need to spend so much time posting point-by-point responses to nontechnical comments from Azusa. Maybe I don't speak for the entire audience of this thread, but I probably speak for a fair number in saying I already have a sense what to expect from Azusa, and I don't need to see you caught up responding to all of it, and I'm happy to wait until you have more technical results and you post those.