Limitation 70 km / h on the device

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louis40
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by louis40 » 16/02/14, 15:32

dede2002 wrote:A big truck that consumes less than 1l / 100 per ton ...


That's why in Switzerland they put them on rails :D
Not enough consumption to fill the coffers of the state! :D
They are not so smart these Swiss economists! (humor)
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Macro
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by Macro » 17/02/14, 10:48

I confirm for the conso of the trucks ... The 44tonnes of PTRA that I cotoisies every day oscillates between 28 and 33 liters / 100km according to the type of runs ... So well under the liter per ton / 100km ... Either .. almost half as much as my electric sax : Shock: for higher perfs ... : Shock: : Shock:
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by louis40 » 17/02/14, 10:53

Macro wrote:I confirm for the conso of the trucks ... The 44tonnes of PTRA that I cotoisies every day oscillates between 28 and 33 liters / 100km according to the type of traverses ... So well under the liter per ton ...


Okay !
Provided that the return is not done empty : Cry:
Without taking into account the deterioration of the roads, the tax-free diesel and ...
Let's save money on this job and stop relieving ourselves with our modest travels.
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by Macro » 17/02/14, 11:13

Those I coteste make return empty ... Full 44T empty 13T average weight during the round-trip 28.5T conso 28l 1 liter per ton ... But to know those I cause are limited to 70 on 90 road on highway
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by Did67 » 17/02/14, 12:32

dede2002 wrote:Did 67 I also tried, with a small 3 cylinders, 1.7 l / 100 to 50 km / h (0.85 l / h). But it was raining ropes, I had lighthouses. windscreen wipers, heating and defrosting switched on.
It would be interesting to try with and without electrical consumers (or with and without air conditioning).


1) What I should have tried is what the consumption is, coasting, while maintaining the same engine speed as it takes to be in 5th at 90 km / h. We would then have exactly what “the system” consumes just to function, without producing anything.

Flat, at stabilized speed, the consumption recorded (eg 5,5 l / 100) is not that required to maintain speed: it is the sum of this "background noise" (which I do not have measured but probably close to 2 l / 100) + useful energy (therefore 3,5 l per 100).

2) This figure of 2 l / 100 alone explains why working your engine to work and maintaining it at very low speeds reduces fuel consumption, even if we deviate a little from the "maximum torque speed" or from the "engine speed". maximum power "

3) On a daily basis, I drive a "small 3-cylinder engine". But she doesn't have an on-board computer!
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by I Citro » 17/02/14, 13:04

Did67 wrote:... On a daily basis, I drive a "small 3 cyl engine". But she doesn't have an on-board computer!
it seems that the SCANGAUGE is compatible with your Citroën C1. : Idea:
This little box very appreciated OBD computer on board and many other things.
: Mrgreen:
You go home and I lend you one : Lol:
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by dede2002 » 17/02/14, 20:26

I had the opportunity to ride the same 3 cylinders (a colt), first cold measure, headlights on, 1.5l / 100 at 50km / h.

Then at each freewheel test at 50 she showed me 0.0 l / 100 ...?

The computer may not be set for this measurement, it seems to me that it goes to zero below 1.5 l / 100?

In the climb to 50 I had> 6 l / 100 in 3rd,> 5 l / 100 in 4th, and in fifth at 1500 laps 7l / 100.

It's nice this indication of conso, pity it's not my car ...
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by Did67 » 18/02/14, 09:44

There are probably different settings to avoid outliers. At home, on the C5, more indication below 30 km / h. No doubt it was felt that then the data was no longer reliable. And tended towards infinity!

On yours, it may be 50 ???

Me, the t "is", was to know, at 90 km / h stabilized, how much "consumed" the engine just to "run", without producing anything ...

But as said, I made the mistake of doing my engine idling.

I will do it again as follows:

- I first find out what is the engine speed in 5ème speed, corresponding to 90 km / h stabilized
- on the descent in question, where the slope "maintains" just 90 km / h, I disengage and put the neutral point; then I "restore" to the accelerator the same engine speed as that which I would need flat to maintain the 90 km / h
- The consumption that will register the computer at that time will be that related to the agitation of the engine and its organs, without producing anything useful ...
- in slow motion I was about 1 l; I think I'll be 1,5 at 2 l ... Let's wait until I get the old titin ...
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by Did67 » 07/03/14, 22:05

Today, the C5 was out. And I'm stuck !!!

I recall the protocol:

- a descent, which has just the right slope so that the speed is stabilized at 90 km / h in freewheel (I run at 90, I disengage and release the speed, and it remains at 90 km / h)

- I noticed that my C5 2.0 gasoline then turns to 2 500 revolutions / min in 5ème.

- I reestablished so, speed output, 2 500 revolutions / min

AND I'm watching the cons: 2,5 at 2,8 l at 100. (a bit difficult to stabilize at 2 500 RPM).

Conclusion: just to do nothing useful, this engine consumes between 2,5 and 2,8 l at 90 km / h. The idle, at 1000 rpm, is about 1 l.

NB: no accessories like air conditioning, wipers, headlights ... just the essential electrical equipment.

This is the simple reason why, in steady speed, keep the engine speed as low as possible ...

I blame myself for not having done the test at 3 500 rpm, a scheme that I'm shuffling from memory to 110.

[she has an excessively short box !!!]
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dede2002
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by dede2002 » 09/03/14, 08:51

Hello,

It's interesting as an approach.
I suggest you do a test in stages, 500 rev / min for example, with someone who notes, then draw a curve. :?

A+
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