Tesla EVSE on a prius

why are you keeping the pip?

 

you can't upgrade the charge speed beyond l2 without a total rebuild. you can add more battery.

 

Besides the charger's in the PIP not the EVSE, that's what determines what charging rate the batteries get.

 

that's why he asked if he could upgrade 'the charge in the car, not the evse'.

 

ok, got it bisco. I would think Toyota figured that what the current charge rate is at is the most optimal and any faster charge would shorten the battery life.

 

agreed. but tinkerers can be choosers.

 

wrong zip code.

i like it. i wonder if luscious would take a swing at this?

you should pm bill the engineer. question is, where to get tesla parts? strip one down?

 

There is a commercially available PIP upgrade available from. Plug-In Supply | Plug-In Upgrades for the Toyota Prius

Unfortunately any battery upgrade will add weight, cost significant $, reduce the available cargo space.
I found the plug in supply option, investigated it a bit and didn't like several aspects. I have done a "paper tiger" design of a battery and control system that should give two and 1/2 times the stock range at a cost of approximately $4000 and preserve the cargo space above the current floor, sacrificing the rear cubbyhole. I've shelved the project as it would never pay for itself with my usage. Another thing I did differently vs Plug in supply was I used the existing charging system so my charging times would be even longer.
Send me a private email at [email protected]

 

As to the actual question the battery in the PiP is just a standard lithium chemistry. You are smart enough to know the EVSE is not the "charger", excellent. The PiP charges at about 1.9KW-2KW from what I'm told (I don't have a PiP). You can bring the pack up to about 90% at full speed, but then you will have to drop down to 1KW or so for the top balance. So there is going to be a bit there where even a super fast charger will not have a speed benefit. But from 0% to 90%, you can improve the speed. I believe the PiP pack is rated for about 60KW/14C.

There are Leaf users who had the 3.3KW chargers that have installed 7.2KW worth of Brusa chargers.

Check out this site: BRUSA: Chargers - 400 V

Since the PiP is under 400V, you can use the 22KW fast charger: BRUSA: NLG6 Fast Charger

With the Pip you should get from 0 to 90% in 11 minutes. And then double that to get the last bit up top.

 

Don't you guys have 60Hz AC network? BRUSA NLG6 is rated to 50Hz +-1%.

Otherwise, I would suggest against tampering with PiP's electronics, if it is really that dear to you.
But hey, if nobody tries it, how would the science evolve?

 

Yeah, but I have a feeling it can probably do 60Hz.

There other charger NLG513 can take 48-62Hz and can coincidentally be paralleled up to 22KW. Magically the same output as the other charger. My guess is the big boy charger is just 6 phases of the small charger put in parallel.

Also with these offline supplies the first thing they do is chop the input at high frequency to make an intermediate high voltage bus. The 10Hz difference really shouldn't do much but make the efficiency curves or power factor different.

I guess if you want to be absolutely sure, just buy 6 of the other chargers.

 

BAD ADVICE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!FIRE HAZARD!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

The PIP OEM charging system is integrated with the cars computers which run during charging and are involved in SAFELY restoring precicely the charge used!

What this IGNORANT poster who doesn't own a PIP and has not conducted any experiments) proposes, simply adding an external charger, makes no provision for cell balancing or individual cell monitoring, which are needed to SAFELY charge ANY lithium ion battery!

It is certainly possible to adapt a faster charger safely but it'll take SIGNIFICANT modification of the battery and likely require adding a redundant battery management system and modification of other computers in the car.

 

You are wrong on all accounts.

It is just a battery. You can charge it with a nice CC/CV profile that the Brusa puts out and no harm will be done. You set the limits properly and no harm done. This has been done for years with homebrew EV's as well as on Nissan Leafs that came with 3.3KW chargers.

I own a fully electric vehicle and better yet I work on the semiconductors that companies like Toyota, Honda, Mercedes, Nissan, Mitsubishi, Audi, Tesla, and more actually use inside their BMS system. I have got hundred of killiowatts of lithium sitting in a cubicle here that we charge and discharge all the time.

You are super ignorant and you might want to do some research before hurling bricks of stupidity at people that know much more than you and actually are designing the current and future hybrid and electric vehicle battery management systems.

 

I stand by My warnings! And I've enjoyed a 40+ year carear designing and using semiconductors.
There is a reason Toyota, Nissan, GM,Tesla and all other responsible entities, including Boeing spend lots of money developing and implementing battery management systems to control the charging of Lithium Ion packs.

1. OVERCHARGING A SINGLE CELL CAN LEAD TO A FIRE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
2. WITHOUT MONITORING INDIVIDUAL CELL VOLTAGES DURING CHARGING A RANDOM FAILURE CAN EASILY BECOME A CATASTROPHIC FIRE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Should anyone follow the STUPID advice and charge a lithium ion pack without cell level monitoring and cause a fire they ALONE, without any insurance will be COMPLETELY LIABLE for any injury or property damage!

The person who wrote the insult "You are super ignorant and you might want to do some research before hurling bricks of stupidity at people that know much more than you and actually are designing the current and future hybrid and electric vehicle battery management systems." Is not going to serve your prison term or pay for the damage that can easily result from following his advice.