Experience the electric car

[Louis4sun]

I am (ais) part of the IUT Ville d'Avray team
First in proto electric category
Louis

Congratulations on your victory.

You were less happy with your solar proto ...
Have you analyzed the source of the problem?

Yes
bad geometry of the directional rear axle
Tendency to oversteer and instability in steering when cornering
Too bad everything else was not bad
Note the sliding solar panel

Louis

[I Citro]

La Joliverie has gained in internal combustion with 3196.3 km / liter of SP95
The bulk of the competitors are around 900 km / liter

I have wondered for years the pkoi (technology, piloting ...?) Of the supremacy of the school in question!

If anyone has any clues?

Lots and lots of work ... and lots of ideas ...
The hull alone requires more than 3000 hours of work, the carbon wheels on ceramic bearings ... The tip-top aerodynamics, the positive camber of the front wheels to reduce the Scx while respecting the route recommended by the regulations ...
The most efficient vehicles manage to gain 5 km / h at the end of the straight line on a slight slope ... The others lose speed ... This makes it possible to start the engine only the minimum time necessary to maintain the average speed.
Concerning the cheating of the revival to the starter instead of the thermal, the modification of the regulation which raised the average speed from 25 to 30 km / h made it possible to put out the cheats. The fact remains that the installation of a joulemeter on the starter battery seems essential to me and that the measurement of performance must concern all the energies consumed ...

For example, this year, an Eco Citadin hydrogen vehicle operated with a Fuel Cell and super capacities. Before each attempt, we measured the tension of the super capa which had to be lower than the tension at the end of the course. However, on arrival, the higher super capa tension than at the start indicated that energy had been stored unnecessarily in the capa which had not been used to roll but was counted in the performance (the charging capa by consuming hydrogen and regenerating on deceleration) ...

Otherwise +1 there are few similarities between these cars and road cars ...

Hence the interest in setting up new categories such as "Eco Citadins" or "Urban Concepts".

[enzo20134]

Hi,

Everyone agrees that electric cars are expensive to buy, especially if they are used in a second car to pick up bread or children at school or to move around town.
In short, a lot of people here would be satisfied with an equivalent electric Méhari or even something smaller like a mini moke or golf cart adapted to the road. In short, a light quadricyle with stupid lead batteries.
A quick glance at the current offer shows that there is nothing for less than € 8000 excluding the Ademe premium. Which is the price of a Logan.
There are certainly possibilities of lowering prices a little but the fact remains that the size of the vehicle is important as well as its approval. In short, driving green at a fairly prohibitive cost for many.
What could be an acceptable proposal for the wallet vs services / approval provided?

[Obamot]

What a big trump to dig up this thread if not for the sole purpose of evading any other mode of propulsion in the discussion ...

So that we caught a rake in another thread. Besides being cynical it is not fairplay.

[I Citro]

Everyone agrees that electric cars are expensive to buy, especially if they are used in a second car to pick up bread or children at school or to move around town.
In short, a lot of people here would be satisfied with an electric Mehari ... In short, a light quadricyle with stupid lead batteries.

Okay, let's resume:

1/ the second car is the one that travels the least number of kilometers a year, Often people drive much more on short journeys every day than on their long journeys (over 70km).
In my home, this represents more than 25.000 km of electricity per year against 8.000 km with LPG for weekends and holidays.
2/ Lead-acid batteries are outdated technology and unsuitable for electric traction, EXCEPT for handling equipment or the low intensities claimed and the weight of the batteries are ASSETS. For other vehicles (electric bikes, scooters, cars, trucks ...), lithium technology is already ECONOMICALLY more profitable than lead because its lifespan compensates for its higher cost. For performance, there is not even a photo, it is difficult to make a leaded vehicle (except in heavy goods vehicles) with a range of more than 50km and again with VERY MEDIOCRE performance. Vehicles like my 106, modified by individuals in lithium batteries reach 250km of autonomy, better than what French manufacturers offer us ...

A quick glance at the current offer shows that there is nothing for less than € 8000 excluding the Ademe premium. Which is the price of a Logan.
There are certainly possibilities of lowering prices a little but the fact remains that the size of the vehicle is important as well as its approval. In short, driving green at a fairly prohibitive cost for many.
What could be an acceptable proposal for the wallet vs services / approval provided?

The current price of electric cars is indeed high. We are in the start-up phase of the sector ... Take for example the prices of a new game console when it comes out and its price when the replacement arrives ... I hope that the curve will be similar because the price manufacturing a large series electric car will quickly be similar to that of a DACIA Logan.
The main obstacle to the development of the electric car is the opposition of economic interests of oil tankers, manufacturers and states...
This is the reason why vehicles will be overcharged and leased rather than sold. Currently, they are working hard to set up an economic model (comparable to that of mobile telephony) which will provide them with the same financial income as the economic system of the petrol vehicle. The planet may appreciate it, but the consumer should not take advantage of it to save money. THEY want to continue to milk us as before ...

For the moment, the only solution is on the occasion with vehicles of the previous generation or in some recent productions with fully owned batteries and free electrical connection. It is still an adventure, even if I am very lucky ...

The "ecological car" is a term to be banned. To drive "green" is to drive with the vehicle dimensioned as accurately as possible for the use which one makes of it ...
In many cases, cycling or even walking is more appropriate than the car.

[bernardd]

The current price of electric cars is indeed high. We are in the start-up phase of the sector ... Take for example the prices of a new game console when it comes out and its price when the replacement arrives ... I hope that the curve will be similar because the price manufacturing a large series electric car will quickly be similar to that of a DACIA Logan.

This same curve can also apply if the starting price is already low: which is the case with the compressed air car.

But this decrease by the scale of production will apply only and only if the materials are not expensive. In this case, the body and the motors have been produced for a very long time for electrics. The only gain to be expected is on the batteries, but it is then the raw material which is expensive.

The main obstacle to the development of the electric car is the opposition of economic interests of oil tankers, manufacturers and states...

You meant "to the development of eco-friendly cars", is that right? If another technology is even more efficient than electric batteries, it should come under even more attack, right?

Especially if it allows distributed domestic storage, without more dependence on the owners of mines and factories (financed by national subsidy ...) ...

[I Citro]

The current price of electric cars is indeed high. We are in the start-up phase of the sector ... Take for example the prices of a new game console when it comes out and its price when the replacement arrives ... I hope that the curve will be similar because the price manufacturing a large series electric car will quickly be similar to that of a DACIA Logan.

... But this decrease by the scale of production will apply only and only if the materials are not expensive. In this case, the body and the motors have been produced for a very long time for electrics. The only gain to be expected is on the batteries, but it is then the raw material which is expensive.

You're wrong... The raw material represents "peanuts" in the battery, only 80 € of lithium, and it exists in sufficient quantity, including in sea water, the extraction of which would only increase the price "only" 800 € of lithium for a car as they are going to be offered to us (too heavy and too powerful from my point of view).

The main obstacle to the development of the electric car is the opposition of economic interests of oil tankers, manufacturers and states...

You meant "to the development of eco-friendly cars", is that right? If another technology is even more efficient than electric batteries, it should come under even more attack, right?

The bicycle, the mobile phone and many other means of communication (in the broad sense), EXIST and compete with the automobile ... Lobbies cannot win on all fronts ...

[bernardd]

You're wrong... The raw material represents "peanuts" in the battery, only 80 € of lithium,

Here, why are you shouting?

Have the inhabitants of the countries where these mines are located agreed to have their natural resources destroyed at this price? And to be exploited at what hourly rate?

At what price do you plan to transport millions of tonnes in our countries?

The bicycle, the mobile phone and many other means of communication (in the broad sense), EXIST and compete with the automobile ... Lobbies cannot win on all fronts ...

In the meantime, you pay the cell phone still as expensive, while all the relays are amortized and the operation does not depend on the time spent on the phone, let alone the number of sms ...

And I'm not even talking to you about the swindle of € 9 per month of the amortization of the price of the copper telephone network.

But we were talking about cars, right?

The surest way to reduce the financial and economic cost of a car is to reduce its mass.

And there is another technology that can reduce it all ...

and store solar energy at home ...

[I Citro]

The bicycle, the mobile phone and many other means of communication (in the broad sense), EXIST and compete with the automobile ... Lobbies cannot win on all fronts ...

In the meantime, you pay the cell phone still as expensive, while all the relays are amortized and the operation does not depend on the time spent on the phone, let alone the number of sms ...

You are getting off the topic, because when I was referring to the telephone, used as a "means of communication" instead of taking the car, I was not talking about the price, but it is a question that deserves to be asked:
Compare the cost of communication via telephone to communication via vehicle.
As far as I'm concerned, I'm not a mobile subscriber ... So the price ...

[bernardd]

You get off the topic

Well, it's always the other! You approach the subject monopoly and telecom and you reproach me for answering you?

I was not talking about mobile phones but also fixed copper: € 9 amortization per month and per copper line for an already amortized network, that's more than 3 Giga Euros diverted from French homes per year.