The thermal hybrid / electric and generators

[Woodcutter]

Very interesting article by Motor-Nature on a technical study carried out in Great Britain ...


EDIT: Modification on 26/01 of the title to make only one post talking about several types of hybrids, which carry generators of electric currents, whatever their mode of operation.

[I Citro]

Please relay this kind of info

The article is very interesting.

However, the figures for 100% electric use are missing.

To know :
- Electric autonomy only
- Top electric speed only
- Electrical efficiency in Kw / Km or Km / Kw

[Targol]

Please relay this kind of info

The article is very interesting.

However, the figures for 100% electric use are missing.

To know :
- Electric autonomy only
- Top electric speed only
- Electrical efficiency in Kw / Km or Km / Kw

I admit I don't understand ...
It is not an electric car, it is a hybrid. It cannot operate without the heat engine. The entire propulsion architecture is based on the complementarity of the two energies. Ultimately, you could compare it to a 2% electric car, but that's it.
Being hybrid has many advantages in terms of autonomy (the thermal recharges the batteries), empty weight (fewer batteries) and therefore consumption. The disadvantages are air pollution and the low efficiency of heat engines.

[Woodcutter]

[...] It is not an electric car, it is a hybrid. It cannot function without the heat engine. [...]

Apparently yes, since one of the engines is used only for traction and given its power level (50 kW) it is more than sufficient ... (moreover, the hybrid that is the Prius can work very well in "ZEV" ...)

After what Citro no doubt wants to know, is that it is possible to do pure electricity, ideally in urban areas ...

Given the low battery capacity (2,2 kWh), you should not be able to do much more than 10-12 km. I base myself on the consumption noted by the person who drives on Lyon with a Kangoo Electro Road (between 150 and 190 Wh per km) http://www.pile-au-methanol.com

[Woodcutter]

Since we are in hybrids, I don't know if you had seen this achievement (English again!) from the beginning of the year ...

It is indicated 5 km of electric autonomy for batteries with a capacity of 2 kWh (7 Ah at 288 V) and the engine is 23 kW.

EDIT: my keyboard has forked, it's 5 km step 50 km

[Targol]

Since we are in hybrids, I don't know if you had seen this achievement (English again!) from the beginning of the year ...

It is indicated 50 km of electric autonomy for batteries with a capacity of 2 kWh (7 Ah at 288 V) and the engine is 23 kW.

It is true that on paper, it is interesting. The long-term reliability of these vehicles remains to be seen (not just this particular model, all hybrid models).
When we see the difficulty that the mechanics have to diagnose (even with the case) and to repair the electronic failures of current models, however less complicated, one can be fearful as for the lifespan (without breakdown) of these "factories gas "electronic ....

Finally, with the Prius, we will have a little more visibility in a few years ...

[Woodcutter]

[...] It is true that on paper, it is interesting. The long-term reliability of these vehicles remains to be seen (not just this particular model, all hybrid models).
When we see the difficulty that the mechanics have to diagnose (even with the case) and to repair the electronic failures of current models, however less complicated, one can be fearful as for the lifespan (without breakdown) of these "factories gas "electronic .... [...]

Paradoxically, if the future of the automobile is made by "series" hybrids (heat engine as a generator) the management of the heat engine will be much simpler.
And, although this is not my area, it still seems to me that the electronic management of electrical systems is less complex than that of a heat engine with non-constant speeds and loads ...

[Woodcutter]

News from Auto Innovations concerning a prototype of series hybrid (or VE with range extender).

See also:
http://www.moniteur-automobile.presse.f ... cleID=8855
http://news.caradisiac.com/Salon-de-Det ... oncept-633
http://www.automobile.lycos.fr/actuauto ... lt-concept

And surely others ...

I think this type of vehicle represents the near future of the automobile, before ... what?

[Christophe]

Sorry, I'm not the Bucheron on this one ...

I think that the hybrids will remain elitist (in terms of prices) for quite a while ... and that their perf. in consumption will never tighten profitable compared to the HCCi (if it works one day) and the leap (of the output) that the EM valves will bring ... Obviously you will tell me that one does not prevent the other ... but at what price (obviously selling)?

Besides, isn't that what is emerging? Almost all the hybrid prototypes are currently more than 200Cv ... therefore necessarily reserved for a certain "Elite" ...

Dowsizing and vehicles better suited to their daily environment are 2 development voices that are more promising "econologically" (if we can speak of econology on cars) than hybridization ... Well, that's my opinion and I could be wrong. ..

ps: I do not even speak of reliability mentioned by Targol because I do not know this subject well ...

[Woodcutter]

[...] Obviously you are going to tell me that one does not prevent the other ... [...]

Yes !
All the progress made on the "thermal" part (the generator, or range extender, therefore) can be immediately transferred to a hybrid.
Concerning the cost, the main current brake comes from the batteries, because I don't think that the electric motor and electronic control part is very expensive (but if I'm wrong, I would like specialists to correct me).

Be careful, I am talking about series hybrids, not parralleles which in my opinion are too complex to persist.

In addition, do not forget that a hybrid is capable of running in ZEV, therefore to meet potential future standards prohibiting polluting emissions in urban areas.
These are all the reasons why I see them prominently.

But hey ... We'll see!

PS: for hybrid prototypes, I think you're generalizing a bit quickly ...