Clubeletricos.com

Problemas de Arranque detectados nalguns Leaf's. (Nissan: restart problems reported in Leaf electric cars)


"TOKYO, April 11 (Reuters) - Nissan Motor Co has received complaints from owners that its Leaf electric car on occasion fails to start, posing a potential setback for the automaker's goal of promoting zero-emission vehicles.

Japan's No.2 automaker said on Monday it was looking into the exact cause, which it traced back to the Leaf's air-conditioning unit. Nissan is investigating whether the glitch was in a certain component or the programming, spokesman Toshitake Inoshita said.

Nissan plans no recall for now since the issue does not affect safety, but will decide how to proceed after identifying the source of the problem, he said.

"When we know the exact cause, we will decide whether to issue a service bulletin, or take other steps," Inoshita said.

He added that the phenomenon was reported in both the United States and Japan, although he did not have an exact figure for the number of complaints.

Nissan and its French partner Renault SA are aiming to become leaders in the nascent field of electric vehicles, which plug into an electric outlet to power the car's batteries and have no tailpipe emissions. [ID:nL3E6N303O]

Nissan launched the five-seater Leaf in Japan and the United States in December. It sold more than 3,300 units in Japan as of February and delivered another 452 in the United States through March.

Production at Nissan's Oppama plant south of Tokyo, where the Leaf is made, resumed on Monday on a normal basis -- from supplier-delivered parts -- for the first time in a month, after it was halted by a devastating earthquake that rocked northeast Japan on March 11. [ID:nL3E7F80W8]

Nissan's shares were down 2.2 percent at 698 yen in early afternoon trade, in line with a broad decline in Japanese auto stocks."

Em: http://www.reuters.com/article/2011/04/ ... BC20110411

BREAKING: 2011 Nissan Leaf Start Failure - What You Need to Know


"A few days ago, we started hearing mumblings on the electric car grapevine which suggested that all was not well again with the 2011 Leaf, Nissan’s first ever all-electric production hatchback.
It all began at the end of last month, when a 2011 Nissan Leaf owner reported that his car stopped working just three days after picking it up.
Initially seeming to be just another random occurrence, the story has become a major headache, leaving the Japanese automaker trying desperately to find out what exactly is leaving drivers of its $32,780 electric car stranded.
Here’s what we know so far about the issue, and what you can do to rectify it.

What Exactly Happens


According to owners talking on MyNissanLeaf.com, the symptoms are easy to spot.
After using the car’s on-board air conditioning to pre-cool a car before driving it, or to cool the car during use, an affected Leaf displays three yellow warning lights--vehicle, power steering, and battery--while it is being used.
At this point, the car still operates normally, despite the lights. But as we all know, warning lights normally indicate something is wrong.
What would most people do at this point? Pull over, and power-cycle the car.
But this is apparently exactly what you shouldn’t do, according to the recently created LeafWiki.
In fact, restarting the Leaf renders it completely inoperable. The car will apparently refuse to engage its Ready mode, temporarily turning it into a very expensive paperweight which has to be recovered and returned to the dealer.
The Cause
At the moment, Nissan has remained quiet on the issue, except to say that it is aware of the problem and working on a solution.
A few theories have surfaced, most of which revolve around the car’s air conditioning system.
One early theory cites over-charging of the Leaf’s air conditioning system at the factory. Several owners with the problems have had their Leaf air conditioning system recharged after dealers cited this as the problem. They have not had the same fault repeat itself.
A second theory cites a problem with the car’s current-leak detection software. That system activates a fault code if too much current is drawn by the air conditioning system or a current leak is sensed between the high voltage electronics and the car body.

The Fix


Some owners of affected cars are reporting that their local dealers have either upgraded or downgraded their Leaf’s operating system, but thus far these actions just seem to be part of the dealer’s diagnostic attempts.
Officially, there’s no fix yet, although Nissan spokesman Toshitake Inoshita told Reuters earlier today that Nissan was aware of the problem affecting cars in both the U.S. and Japan, and said it was still trying to find the exact cause and solution for the problem.
Once Nissan is confident that it knows the cause of the problem, it will take appropriate steps to repair affected cars. At present, no recall is planned since the system does not pose a direct safety risk to either car or occupants.
We have to disagree, however, after hearing of several Leaf owners stranded at stop lights after rebooting their car in an attempt to reset the error lights.

Is Your Leaf Affected?


At the moment there seems to be no surefire way of telling if your car is affected. Some theories suggest that cars with operating systems 3NA0B and 3NA0C may be the ones susceptible to this issue.
To find out which operating system your car is running, follow the instructions listed at MyNissanLeaf.com.
What To Do If You’re Affected
The general advice if you get any warning lights while driving your 2011 Nissan Leaf is to continue to a safe stopping place, like a parking lot, before restarting the car.
Alternatively, drive your 2011 Leaf to the dealer.
Importantly, do not restart the car in an unsafe place.
If you get the error, have an unresponsive car, or simply need to use your Leaf, some owners report that disconnecting the car’s 12-Volt auxiliary battery under the hood for 10 minutes will enable the car to be rebooted.
However, all data will be lost and settings for the Carwings system, GPS, and radio will be lost.

Our Advice


Obviously, should your new 2011 Nissan leaf behave like this, the safest thing to do is to find somewhere safe to park up and call your Nissan dealer.
But if you can't find anywhere, or you're already driving and know where your dealer is, just drive there there immediately but do not turn the car off.
Of course, we're not engineers, nor are we Nissan. We accept no liability for what happens if you can't find a safe place to park and await assistance.
We’d also like to remind you that the 2011 Nissan Leaf should not be towed with the front wheels touching the ground, as this could damage the car’s high-voltage system, drivetrain, and parking brake mechanisms.
Have you had the problem? Has it been solved? Let us know in the Comments below. "

Em: http://www.allcarselectric.com/blog/105 ... ed-to-know

Pelo que vi no mynissanleaf, é possível fazer reset ao erro desligando a bateria de 12V durante alguns minutos. Não resolve, mas permite voltar a andar com o carro.

Ao que parece o problema tem a ver com uma sensibilidade muito elevada no diferencial de corrente da bateria principal.

Descobri este link interessante sobre o Leaf que refere este problema de forma mais detalhada...vale a pena ver

http://nissanleafwiki.com/index.php?tit ... on%27t_run

Parece que vem ai uma actualização de software para resolver o problema detectado e segundo um contacto que fiz com a Nissan em Portugal os nossos carros serão entregues já com o upgrade instalado.

"Stoaty
Post subject: Service Campaign Announced By Nissan for Restart ProblemPosted: Fri Apr 15, 2011 3:21 pm

Joined: Sat Jun 19, 2010 5:50 am
Posts: 185

Note: I am re-posting this to a separate thread to make sure no one misses it. Everything that came before on the A/C issue was speculation, now we have the official word from Nissan.

Service campaign to be announced: see video from Nissan EVP Andy Palmer

updating software on all cars starting next week

http://www.nissan-zeroemission.com/EN/L ... 8247873001

He says in the video 8,000 leaf cars produced to date

transcript:Nissan EVP Andy Palmer spoke with the Nissan Media Center to update on developments with the Nissan Leaf.

Q1. What's the latest on the Nissan Leaf and how will the issue be addressed?

A1. We are announcing a service campaign for the Nissan Leaf. We've produced almost 8,000 Leafs since the start of production in December, and what we've found is a problem. The incidence of the problem, which I will explain in a moment, is only on a very small proportion of the vehicles. However, we've decided to perform a service campaign for all of the vehicles that we've produced and sold. I want to emphasize that the issue is nothing to do with safety-related (issues). Nothing at all. The issue we have is the car will drive happily, but on some occasions when you key off, the car won't restart. Now that's an inconvenience to the customer for sure, and we're not in the business of inconveniencing our customers. So, even though the incidence and occurrence is very small, we've decided to reprogram the software and basically put that fix into the hands of all of our customers.

Q2. How long will the campaign take to roll out and what should current Nissan Leaf owners do?

A2. Well, time is of the essence and we absolutely don't want to inconvenience our customers, so we need to go as quickly as possible. We've understood the root cause of the problem. The engineers are just finishing off the software reprogramming, and our intention is to start the service campaign next week. Next week means we are going to contact all the customers that we've sold Nissan Leaf to, or they can contact us, and we'll program into their diaries a convenient moment, and we'll reprogram their software.

Q3. Since the tragic events of March 11, production in Japan and rollout has been affected. Can you tell us the company's current expectations for further global rollout of the Nissan Leaf this year?

A3. To date, we've made almost 8,000 vehicles, which makes us - if not the biggest - one of the biggest producers of Electric Vehicles in the world. So, it was going well, and the start of production of a brand new car -- brand new technical concept, has gone remarkably smoothly, thanks to the experience that Nissan has had in the past.
The earthquake has inconvenienced us -- it's stopped the track and, as everybody knows, all of the vehicle manufacturers, not only in Japan but all around the world, have problems of supply. The good news is that Oppama has restarted - that's the manufacturing site for Nissan Leaf. We're producing batteries in AESC (Automotive Energy Supply Corp.), so our in-house plant is now producing cars.

We still have some issues in terms of supply of parts from suppliers and we're managing those on a day-by-day basis. But we fully expect to be back to full capacity in the very-near future, and those lost sales we're going to endeavor to catch up in the second half of the year. There's an awful lot of customers waiting, and it's our intention to satisfy that demand - huge pent up demand - as quickly as we can.

###
Nissan regrets any inconvenience caused by this issue and thanks its customers for their understanding as it is quickly resolved.

Estava a ver que tinhamos que levar os nossos LEAF's ao concessionario... ou não será bem este o problema do nosso LEAF não andar?

http://green.autoblog.com/2011/04/15/ni ... evs-fixed/


Today, Nissan clarified the situation with the start-up problems that some Leaf drivers have experienced recently (details here). The problem, it seems, is the Vehicle Control Module, and affects only "a very small proportion" of Leafs. Still, all 5,300 Leafs in operation around the world will get this reprogrammed "to ensure all of our customers are satisfied." Nissan says that, since the problem isn't a safety issue – the car simply doesn't start sometimes – and there is no official recall going on. Instead,

Leaf owners can expect to see their car ask for a visit to the dealership sometime soon. Nissan says:
In an effort to minimize the inconvenience to these customers a message will be sent through the on-board telematics system early next week prompting the owners to contact their Nissan dealer to arrange reprogramming of the software to address this issue. Nissan will also contact potentially affected owners through traditional channels to inform them about this issue.

You can read Nissan's exact words after the jump. Anyone get their message yet?

---

UPDATE: Nissan launches service campaign for Leaf start-up issue
http://green.autoblog.com/2011/04/15/ni ... ue-w-vide/

Nissan Announces 'Service Campaign' For All 8,000 Leafs Over Start Failure

Parece que a Nissan não está a "brincar" em serviço e quando corrige um problema corrige mesmo...bom sinal, sinal de que quer mesmo que o Leaf seja um sucesso:


"Occasionally, if something should go wrong, a Rolls-Royce will fail to proceed. So, too, will the Nissan Leaf--at least, under certain circumstances. More exactly, it will sometimes fail to start. But Nissan is fixing that with a service campaign announced today, affecting the nearly 8,000 Leafs built to date.

The problem, as Nikki Gordon-Bloomfield reported on Monday, renders affected Leafs inoperable--essentially high-tech, high-value paperweights. Fortunately, Nissan says it has figured out the root cause of the problem and will be issuing a software update to fix it.

Though potentially any of the Leafs built so far could succumb to the issue, it has only surfaced in a small percentage. Nevertheless, Nissan wants to ensure there will be no future occurrences of the problem, so it is covering all Leafs with the campaign.

Owners will be notified by Nissan of the issue and the fix, though concerned or affected owners can contact Nissan to set up an appointment to reprogram their cars. Nissan hopes to get the service campaign underway next week."

Em: http://www.allcarselectric.com/blog/105 ... lectric%29

Fonte da Nissan em Portugal informou-me que nenhum Nissan Leaf será entregue sem que se tenha procedido à actualização do software de cada um dos carros.

Esta actualização irá ocorrer na semana de 25 a 29 de Abril de 2011.

Cumprimentos

Bem , o mesmo será dizer que nenhum carro será entregue antes dessa data, dia 26, uma vez que dia 25 é feriado...

CarlosOliveira Escreveu:Bem , o mesmo será dizer que nenhum carro será entregue antes dessa data, dia 26, uma vez que dia 25 é feriado...

Nao é ja para o mes que vem que vao trocar os digitos do IVA 23% -> 32%?