Hv Battery

125 isn't going to start this car. I thought they charged the battery? If she drove it home how come it won't start now? Were missing part of the equation here.

 

Kyle did report a TSB regarding a potential for an internal coolant leak in the inverter causing it to short out. It is possible the jolt of the accident incited that problem that didn't appear evident until now.

 

Heya,

Am I reading correctly? The dealer can't seem to fix the problem and is charging YOU for equipment they need to service your Prius and refuse to guarantee that it'll work after you've bought THEIR equipment?

I'm wondering if you have a lawsuit in the makings here....

That said - I have to ask the same question that others have asked and not gotten a response on - if you where in an accident, why isn't the insurance paying the bills on this?

Yoda

 

Car was salvage, remember? They rightly won't warranty salvaged components. They could loan him the THHT though.

I am curious, what did you pay for the car, and how much have you spent refurbishing it? Still might be worth fixing, even if you do have to replace the inverter.

 

You may be able to use the mig as a power supply, but you'd want to control that power somehow, especially to charge boost the battery. You might be able to take advantage of the startup resistor for a temp quick charge, but I'd be concerned about 250V and no current control with a direct connection.

You won't be able to start the engine by manually cranking it. It is directly controlled by the ECM, as a slave to the HV ECU. Neither will allow spark or fuel unless conditions warrant it.

Your friend may have a hard time getting the charger, but a bigger help would be getting access to the scanner to pull the codes. If there are motor HV short codes, then the inverter is probably bad, possibly due to the coolant leak problem.

 

hi all, Am new to site, hope i'm doing this right.
I don't have a lot of experience with the prius yet, but my guess would be that you have a bad inverter. Why did you have to replace the radiator? Was it leaking or just bent. If it was leaking and cust. drove it home after crash, she probably overheated the inverter. Also I have heard that if you don't get all the air bled out after working on cooling system, it could cause inverter to overheat.
Also, I don't think you should try to charge HV batt. by yourself. Have heard that it takes several hours to charge with the correct Toyota tool.

 

don't even bother with the Mig as the output voltage is probably only about 25-28 volts, open circuit and probably only about 22 or so when welding. I think personally having a dealer charge it up would be the best thing.

 

<div class='quotetop'>QUOTE(DanMan32\";p=\"91214)</div>

Dan:

A Fluke 434 will happily measure voltage on a synchronous AC motor, as it is capable of measuring voltage, current, harmonics, interharmonics, and phase up to 600 VAC. It will even work with high voltage DC motors, up to 600VDC.

It also comes with FlukeView, which you can use to network the meter, to export the graphs to Excel or Word. The meter is very fast, it can sample at 200 KS/s. A power quality or electrical engineer will probably have one, but they are at least as expensive as the THHT.

From the sound of this problem, I can understand why a Toyota dealer isn't willing to get involved in it. The car was a write-off, right? So there will be no warranty anyway, and if this person spends $3000 and the car is still fubar'd, is the dealer supposed to take apart the entire car to fix it?

I don't even understand why regulators allow write-off cars to be sold again and put back on the street. There should be a law where they are automatically sent through a crusher.

Jay

 

When my Saturn was totalled, I talked to my body shop on how to get my car fixed, as I still owed quite a bit on it. They said they used to 'buy back' the car, fix it up for a little more than the insurance paid. Can't do that anymore, you can't register a salvage title. Too many people were making bandaid fixes to make it look good, but hide the real problems.

I don't know how it works though if someone completely rebuilds a car. Must be some way to get a rebuild legal.

Sounds weird that the car was totalled for 4500 damage, but sounds to me that there was more damage than that. Also, insurance take into account for salvage value of the car. For a Prius, that may be alot.

Again Supertim, what did you pay for the car, and what did you put into it? It still may be worth $3000 for an inverter, or try getting one from salvage. But if you get the codes, you will know better. The ECUs are VERY detailed about the diagnostics regarding the HV electrical.

 

How are you determining that the HV and AUX are not charging?

Consider the inverter the central power transfer unit, that will transfer power to/from MG1,MG2,HV battery, and to 12V converter and AC compressor.
The control of the inverter is entirely from the HV ECU.
If the ICE started, that's a good sign, as the inverter would have to take battery power and transfer it to the MG1. The ironic thing is, the same exact components are used in order for the current to flow from the batter to MG1, as from MG1 to battery. It is the timing of gating the energy flow that determines which way it flows.

If there was a problem with the inverter however, you would have gotten the red triangle, with an icon in the MFD, and DTCs would be set that could be read by the scan tool.

Then again, the battery could be too low, so the system is trying to charge it, and won't drive until it has enough of a charge to be safe. However, the DC/DC converter doesn't take a lot of power, so it should be operating.

Get the codes!

 

Yes, the car does do its own diagnostics, that's why we are stressing GET THE CODES!
It does heavy diagnostics on the HV system.

The 04/05 inverter is the same, but 04/05 inverter is not the same as the classic. In the classic, the battery was 270V as was the motors. In 2G, the battery is 206V, and the motors are 500V. Inverter in 2G has a booster circuit to convert 206V to 500V and vice versa.

If all it is is the inverter, getting it replaced sounds worth it, but you want to be sure. If it needs the battery, that could be at least another 1800, and that's getting it used.

 

AS far as I know, the 04 and 05 is exactly the same.
The THHT can provide quite a bit of information. Repair manual mentions nothing about connecting car to computer for upload, though it may be a process a dealer can do. After all, repair manual doesn't tell you about an HV charger.

HV charger at lowes? I would believe that you don't really have to treat the battery pack any more special than a set of D NiMH batteries, but it is still 206V

 

Are you sure he didn't mean the 12 vdc auxillary battery? That I do believe, it's about the same size and capacity as what you'd find in a garden tractor or large motorcycle.

Unless you were very careful and took apart the battery pack, and individually charged each cell, I really don't see how you could find something at a mass-market place to work.

In the industrial process scene, I've seen plenty of specialized chargers for huge UPS's and battery-powered equipment. Most of the chargers run off 3 phase, either 460 VAC in the United States or 575 VAC here in Canada.

Not something you'd find at Lowe's. And they're usually priced +$3,500 and up.

I hope this works out for you. Maybe it's something simple and you can soon be driving the car.