An analysis of electric vehicles to optimise the in- and out-of-car experience

An international research team led by the Universidad Miguel Hernández (UMH) in Elche, Spain, has been working to acquire, pool and develop knowledge on various aspects of electric and hybrid vehicles, such as vehicle dynamics, drivability, and noise, vibration and harshness (NVH). Brought together under the European COST Action TU1105, the aim of the four-year project was to propose and develop new analysis techniques and tools for use at the design stage of electric vehicles in order to address the specific challenges they pose.

The project was carried out in three phases. In the first the aim was to ascertain user expectations regarding this alternative vehicle type. The second and main body of work was focused on the study of traditional techniques for noise and vibration analysis, and how they might be adapted for use in the hybrid and electric context. The final block of work comprised the analysis of the results from the previous two phases in order to optimise the design of hybrid and , including improving their detectability on the roads by pedestrians, cyclists and other .

Among the results of the project, the researchers identified the main challenges posed by the arrival of electric and hybrid vehicles on the roads. They also proposed new experimental and simulation techniques for application at the design stage in order to better predict and take into account parameters such as acoustics, vibrations and comfort. The international team of researchers went on to define future lines of research that will enable the European automotive industry to develop vehicles which combine excellent in-car comfort for drivers with optimal safety for pedestrians and other road users.

COST Actions are efficient networking instruments funded by the European Commission to enable researchers, engineers and scholars to cooperate and coordinate nationally-funded research activities at a European level. They cover scientific and technological research activities for peaceful purposes and of public interest. In this case, the action was devised to bring together a fragmented knowledge base on the subject of electric and hybrid vehicles, whose various characteristics (noise emissions, vibration and comfort) are very different to those of traditional vehicles.

Some of the peculiarities of electric and , for instance, derive from the absence of an internal combustion engine, which make the experience of both driving them and encountering them on the roads very different to traditional motor vehicles. On the one hand, the lack of engine noise inside the car means that other, low-intensity sounds and vibrations become annoying to drivers. On the other, the relative silence with which the vehicles move about mean they often catch pedestrians, cyclists and other road users unawares, leading to potentially dangerous situations.


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May 06, 2016
We have to get used to it now, not later. When these take off in a few years, all others will be left behind. Detroit is terrified, since the best cars in the world now come from California. They are trying to make deals with Silicon Valley firms they used to scorn as Hippies.

May 06, 2016
We have to get used to it now, not later. When these take off in a few years, all others will be left behind. Detroit is terrified, since the best cars in the world now come from California. They are trying to make deals with Silicon Valley firms they used to scorn as Hippies.


Another article you did not read glam-Skippy? Saw electric car in the title and decided that was enough to throw out a good slogan?

Nothing in the article about Detroit.
Nothing in the article about Silicon Valley.
Nothing in the article about California.
And nothing in the articles about hippies.

Other than that, your slogans were right on target.

May 06, 2016
That is right, Ira, I did not just regurgitate the article, but gave you something to look up. Those were included in other recent discussions of the implications of the use of EVs, not just some copy-and-paste from the same article we are reading.

http://www.bloomb...ley-envy

http://www.usatod...6001191/

http://www.detroi...3216460/

http://www.freep....3938338/

You folk just stay snug and smug, thinking you have it all figured out, . . .

May 06, 2016
This project seems to be a bit of a boondoggle. EV design has more freedom than ICE design to distribute its weight via battery placement within the vehicle in order to enhance vehicle dynamics and drivability. Furthermore, an EV motor rotates, which means that its "noise, vibration and harshness" should be much less that of a typical ICE with its reciprocating engine.

The only significant issue would be the relative silence of an EV compared to an ICE, which could be solved simply by the addition of a noise generator that emulates the noise of an ICE at various speeds. A more sophisticated solution may be to use collision avoidance schemes, when sufficiently developed, in conjunction with noise generation tailored to the object to be avoided – car, pedestrian, cyclist, animal ….

May 07, 2016
We have to get used to it now, not later. When these take off in a few years, all others will be left behind. Detroit is terrified, since the best cars in the world now come from California. They are trying to make deals with Silicon Valley firms they used to scorn as Hippies.


I can get used to cars moving silently on the roads, get used to people being so happy to have a full energy tank for less than 4 $, get used to cars with strange designs driven through the entire world.
I hope that's what you were mentionning, gkam. About how much we should get used to see electric cars around us. Because if it's about a larger part, if not the majority of people purchasing some, i think it may take more than "few years".

May 07, 2016
Eden, yes, "In a few years" does not mean two, since cars last longer than that,especially cars now. It means relatively quickly, perhaps ten years.

We will probably never get rid of ICE movers, especially the large ones, but once started, it will be unstoppable for city vehicles.

May 07, 2016
Eden, yes, "In a few years" does not mean two, since cars last longer than that,especially cars now. It means relatively quickly, perhaps ten years.

We will probably never get rid of ICE movers, especially the large ones, but once started, it will be unstoppable for city vehicles.


@ glam-Skippy. How you are Cher? I am good me, thanks for asking. Guess what and I bet you can't guess in a thousand years? I will go ahead and tell you to save time. I am coming out there to California next month. Yeah, that's right, Little-Ira, Mrs-Ira and ol Ira-Skippy him self. We are going to take our this year vacation out there.

Not up in your part of the state but down in south California. Mrs-Ira-Skippette has always wanted to see the Disney Land (which don't really thrill me non) and I always wanted to see the Museum Ships in the Long Beach and San Diego area. We are going to be spending two weeks (and too much money) out there not counting the driving times.

May 07, 2016
Don't be like the other tourists, and "see" what they want you to pay to see.

Rent a Tesla.

Drive Highway 1.

Or go to the Big Trees in Central or Northern Cal. Yosemite. Go see the real stuff, not Hollywood, if you want my little opinion.

May 07, 2016
Rent a Tesla.


Why I should do that? There will be five of us totaled (Mrs-Ira-Skippette's sister and her daughter are coming with us) and our luggages,. Also I don't want to spend a lot of time looking for the right kind of place to plug in the batteries every two hours or so.

May 07, 2016
Go see the real stuff, not Hollywood, if you want my little opinion.


Well we agree on that one Cher. I don't care nothing about Hollywood or the Disney Land either. I am leaving the pleasure of that to Mrs-Ira and her sister and the kids.

I mostly want to see all the Museum Ships they have in Long Beach and San Diego. They have quite a few battleships, destroyers, submarines, and aircraft carriers and others too all within about a 40 mile area. Even the Queen Mary, I want to see her too.

May 07, 2016
Drive Highway 1..
You mean Interstate 10? That's the road we will be taking.

May 07, 2016
Highway 1 goes along the coast.

May 07, 2016
Highway 1 goes along the coast.


Cher, I think you are confused on this one. We live in Louisiana, to get from Louisiana to south California we don't drive along a coast, we drive through the southern part of the whole country.

Interstate 10 we get on up in the Big Sleazy, and take him all the way through Texas, New Mexico, Arizona into south California in the San Diego and Long Beach and Disney Land area. The only coast we will be passing along is when we are already there where they have all the Museum Ships I want to see.

May 07, 2016
I was suggesting a drive along the California Coast on Highway 1.

I know how to get from Louisiana to the West Coast.

May 07, 2016
I was suggesting a drive along the California Coast on Highway 1.
Oh, well then I will if the Highway number 1 is the one that goes from Long Beach and San Diego and about.

I know how to get from Louisiana to the West Coast.
You are welcome, now we both know that.

May 07, 2016
Go to the coast and turn right, which is North, but it is nice both ways, I think. Do not expect to speed by, it is a scenic route.

May 07, 2016
Go to the coast and turn right, which is North, but it is nice both ways, I think. Do not expect to speed by, it is a scenic route.


Well Cher, I do thank you for the suggestions. But I already have a good idea about what I want to spend my time seeing. I even try to tell you but I guess you missed it. We only have about three weeks, and that includes the driving out there and back again, so we can not do everything.

May 07, 2016
And suddenly, it's all about Ira's vacation and cake degustation with gkam's family? i'm lost.

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