View Full Version : DVC Problems???
rogwild
01-31-2009, 07:22 PM
Here is a description of someone that had DVC failure that caused a rollover.
http://www.carver-tuning.nl/Forum/messages.aspx?TopicID=7
A real scary scenario; hope the 'problem' is discovered (and CORRECTED) before the Persu Hybrid goes into production.
Derwin
01-31-2009, 07:27 PM
Yeah, I noticed that in the Carver forum a while back. Doesn't seem to be a major problem, though, considering not many have experienced this. But I guess I wouldn't want to be the one person it happened to, since it could cause your death!
Derwin
MVRacing
02-01-2009, 01:56 AM
Seems to me the "proper" fix for this would be a cogged belt with the proper pulleys?
MikeB
02-01-2009, 09:45 AM
Seems to me the "proper" fix for this would be a cogged belt with the proper pulleys?
I think it'll be a non-issue for us (Persu drivers, that is): the hydraulic system on the Persu is going to have to be electrically driven, since we'll be driving with the engine off at least some of the time. That means an electric pump that can handle the full load, and possibly no belt at all.
rogwild
02-01-2009, 12:29 PM
Yeah, I noticed that in the Carver forum a while back..... Doesn't seem to be a major problem, though,........, since it could cause your death!
Derwin
Hummm interesting. I would think that something like this would be important to 'Persu Hybrid Enthusiasts' since the DVC system will be used on their/our vehicle. I mentioned it, as soon as I learned about it, so that others would be aware and could discuss it.
I guess our Ideas of a Minor vs. Major Problems differ greatly. I consider an annoyance, such as excessive wind noise, chassis squeaks, and door seal leaks, Minor ; while things that can damage the vehicle or cause injury, Major!
If it is determined that a 'slipping' belt (speculation on an owner's part) is in fact the CAUSE, that could be fixed by a 'cogged' belt or electric motor drive; but so far I'm not sure that Carver has determined nor announced the problem/solution; and Persu has NOT announced nor demonstrated what type of DVC it will be using.
AZEqualizer
02-01-2009, 12:52 PM
And Persu has said that they are using a updated version of the DVC technology from Carver.... but other than the brief showing in the now missing video from Rouche Eng. we don't know what that may mean.
Derwin
02-01-2009, 01:12 PM
Hummm interesting. I would think that something like this would be important to 'Persu Hybrid Enthusiasts' since the DVC system will be used on their/our vehicle. I mentioned it, as soon as I learned about it, so that others would be aware and could discuss it.
There are a couple reasons I did NOT post anything about it. First was that it was not a "major" issue in that it has not happened but a handful of times on the Carver. Not a big issue with that vehicle. The second reason was mentioned by AZE.
I guess our Ideas of a Minor vs. Major Problems differ greatly. I consider an annoyance, such as excessive wind noise, chassis squeaks, and door seal leaks, Minor ; while things that can damage the vehicle or cause injury, Major!
Maybe, I don't know. I think if this were the actual DVC system as installed in a Persu mule, then it would be a problem. But the system being used in the Persu will be an UPDATED version, I think its premature to cause alarm.
If we were CarverOne enthusiasts, then this would be an issue to discuss with fellow owners. But even with the Carver, it has not been a "major" problem among owners. It simply hasn't been. I guess we need some of our members from overseas to chime in on this.
But, hey, we're here to discuss everything and anything that members have on their minds. This is a great thing to discuss in my opinion. But we can't really apply the discussion to the Persu due to the reasons previously mentioned.
Derwin
NortonF1
02-01-2009, 04:58 PM
The problem involved with the DVC is that if it does not work the vehicle will flip over, so whatever You do You have to built it so that it will not fail and that could be a problem.
I have had it happen on my Carver One (and was lucky because it was wet and I was driving slow) and I know of 3 other similiar failures, and that is a lot considered that there are maybe only about 300 Carver One out there!
meckman1
02-01-2009, 05:32 PM
This is definitely an important issue to me, and one of the reasons I probably will not buy a PH the first year that they are out.
Derwin
02-01-2009, 07:31 PM
If European owners are having a DVC failure rate that is that high, then that is indeed a MAJOR problem. This type of thing would definitely prevent me from buying a Carver, or ever driving one EVEN IF IT WERE GIVEN TO ME FOR FREE! This is the type of system failure that can cost you your life, and if it's that serious with the existing Carvers, then I'd say it's nothing more than a death trap. Period. As Rogwild pointed out, this isn't a minor inconvenience, it's actually life-threatening.
That said, I am hoping Persu works out the problems in the updated version of the DVC technology. They have to make it "fail-safe" in every way, or I don't see people trusting it. One failure on American roads would cause negative publicity to completely KILL the Persu Hybrid. So, like I said, I hope they put in some kind of "back-up" in case of a failure.
But whenever you purchase a vehicle that is first of its kind or a first run, you are pretty much taking a chance on performance. People who are buying the Spyder SE5 are experiencing this first hand right now. I don't mind taking a chance, but on a vehicle like this, a system failure can be far too costly.
Derwin
Derwin
rogwild
02-03-2009, 10:30 AM
Perhaps this would be a good question for the '??next???' PM Update (or Pod Radio interview);
"Is PM aware of the DVC system 'problems/failures' that some European owners of the Carver One have experienced? What are the causes, and what measures are PM taking to make the Persue Hybrid as safe as possible?"
Derwin
02-03-2009, 10:40 AM
"Is PM aware of the DVC system 'problems/failures' that some European owners of the Carver One have experienced? What are the causes, and what measures are PM taking to make the Persue Hybrid as safe as possible?"
Rogwild, Good idea. I will be calling them either today or tomorrow concerning this, and see if they have an answer. Coming on the club show and giving a live interview about it would be out of the question, I would think. But I'll present it to them and see what they say.
Derwin
Chuck
02-03-2009, 03:01 PM
I know of 3 other similiar failures, and that is a lot considered that there are maybe only about 300 Carver One out there!
Are you referring to 3 different vehicles? I'd be interested to know more specifics, if so, like the vehicle id numbers, etc.
NortonF1
02-03-2009, 03:57 PM
Yes, I know of three more Carver One additional to mine who have reported problems with the DVC System.
I do not know the VINīs of these vehicles.
Chuck
02-04-2009, 03:09 AM
Yes, I know of three more Carver One additional to mine who have reported problems with the DVC System.
I do not know the VINīs of these vehicles.
Are all three in Germany or are you including the ones mentioned by nzpeter?
NortonF1
02-04-2009, 03:54 AM
Hello Chuck,
I know of two Carver One in Germany who experienced problems with the DVC, plus my vehicle, and the 2 of NZPeter, totals 5, 2 cases caused an accident (according to what the owners reported).
I do know that at least the problems with the earlier VINīs where an axle could hit the pulley of the DVC belt and in consequence deform the pulley so the belt would wear more and then get loose and eventually even turn over as described by NZPeter were known to Carver Europe, but they obviously didnt recall or modify the vehicles in NZ in time!
I also know that my vehicle has had a failure once without warning, coming upright in a turn, and that in spite of regular maintenance as required from Carver Europe, and that I reported it to Carver and they still havent investigated the case or contacted me.
I start to feel like I am driving a time bomb!
Regards Hans
tugboatwilly
02-06-2009, 07:52 PM
See all you disbelievers. We have been saved by not buying Vaporware. It is so much safer to ***** about how much fun we could be having in our Persu than ACTUALLY being able to see a real working mule(if they exhist) or what the body pannels they were showing LAST year put togeather in a mock up.
I am seeing great results of our patience, and evaluation of all the data and pictures we have received from Disney..er NEG..Scott, Goofy or minie Mouse, whatever.
carverconcept
07-03-2009, 02:04 PM
Just as an update, we currently testing a newly constructed drive belt for the DVC system of the Carver One and will let you know, once we've experienced the results. A friend has tested the system already and it's supposed to be extremely agile and much safer than the existing one from Carver.
ziggy951
07-03-2009, 02:22 PM
Just wondering. Did Carver develop a new and updated one or is this an aftermarket development?
Z
NortonF1
07-03-2009, 02:30 PM
Just wondering. Did Carver develop a new and updated one or is this an aftermarket development?
Z
Its aftermarket from someone who has had an accident with a Carver One because of a DVC failure and this person is also a Carver dealer.
Regards Hans
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