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How to measure the acceleration time to 100. How the dynamics of acceleration of a car is determined, and how does acceleration affect fuel consumption

13.08.2009, 11:50

Fx35
Engine displacement, cm3 3498
Power, h.p. 283
at rpm 6200
Torque 366/4800
Acceleration to 100 km / h, with fur: 0.0 / auto: 7.1
Curb weight, kg 1890
Gross weight, kg 2342

Mazda3
Engine volume, cm3 1999
Power, h.p. 150
at rpm 6000
Torque 187/4500
Acceleration to 100 km / h, with fur: 9.0 / auto: 0.0
Curb weight, kg 1245
Gross weight, kg 1770



13.08.2009, 14:51

amid,
The truth is, a car can go 100 km per hour in a given number of seconds. And they measure everything in different ways, but the value issued by the manufacturer is CLOSE to the real one.

13.08.2009, 15:31

i think every manufacturer is interested in less seconds
people like it
accordingly, on measurements they must tear and throw in all honest and dishonest ways

13.08.2009, 19:05


then it is not known what m3 has under the hood, we can have shafts with a different lift, etc. etc...
well, dates and dates differ ... it happens that cars get tired, sometimes the box did not have time to adapt ...

13.08.2009, 22:52

14.08.2009, 02:02

All manufacturers measure overclocking to 100, but I don’t understand how they do it? Does the car get under way in normal mode or breaks from speed?

The races with the Mazda 3 made me think ...

In seconds, torque and horses, it turns out that a race of 400 meters without options for a date 35, but in fact, not everything is so simple ...
I merge at the start, tk. Mazda is on the handle and tears off the revs and with slipping ... then I catch up on the way, but there is not enough time to get around ... :(
Himself to start from rpm somehow press-bench. Started several times, but there were only 2-3 thousand turnovers

I understand about the gasket, but I thought that according to the TXX machines I should have been tearing up anyway ...

PS: this Mazda drove in with a BMW 330 coupe, the beha automatic start merged (from idle ones), but then it got around without options ... where is the truth?

Well, first of all, the figure 7.1 is, IMHO, wrong. Taken, so I think, from the Automotive News catalog, and there are a lot of mistakes.
I saw somewhere, the figure 7.6 flashed, and it's not a fact that it's not up to 96 km / h (60 mph)

Secondly ... Today I drove with a friend to the E46 330 touring. If I'm not mistaken, his passport acceleration is 7.2 seconds.
We started from idle, up to 100-120, absolutely the same, then it leaves little by little and I lose by 150 a little less.

14.08.2009, 06:59

amid,
In general, admit, did you feel sick before arrival? :)

14.08.2009, 10:37

in a race of 400 meters, the speed is higher than 100 km. And at speeds of 150-160 already streamlining plays an important role \u003d)))))
I am slowly catching up with him over the entire distance, i.e. and at speeds over 100,
in addition, the telemetry date in the next topic at the finish line only gains 150

In general, admit, did you feel sick before arrival?
in principle, yes, I often feel sick ...

PS. Perhaps, specifically with your car, something is wrong.
there is a video of terrible overclocking quality to 100 from idle ...
the storyboard shows the following:
the tachometer arrow starts, after about a second the speedometer arrow starts, the speedometer shows a hundred in 7 seconds after the start, in total from pressing the gas and up to 100 on the speedometer, roughly speaking, 8 seconds
I think this roughly fits into the declared TXX
only telemetry will give a more accurate result

14.08.2009, 21:09

in principle, yes, I often feel sick ...
I had the idea that the brains of the box are adaptive and adjusted to my driving style. like disconnecting the battery should it be treated?

No, don't do it like that !!!: eek:
This is treated with aggressive driving :)


Did you go to the mechanics or to D?

Did you turn off the air conditioner?
Did you turn off VDS? (Although when you go from idle to mine it makes no difference)
Plus, gasoline also affects ...
Maybe Mazda is not a stock ...

If the handle starts at 2000 rpm, then I have to bring 2-3 Mazda hulls. (Based on the results of Mazda races against Skoda Octavia 1.8 turbo 150 hp)

Last week, a man in a Mazda CX7 was very confident of victory against my date. Only he turned out to be without options for 400 meters. After the arrival, he told for a long time that he broke six different FX35s in the city ... already swung at Fx45: d
In general, we were talking about maximum speed-i I was 100% sure that I would easily and naturally go around it in this discipline))) went to the track and I turned out to be mistaken - absolutely flat maximum speed (I had a little more than 230 on the speedometer) The two races are the same.
It turned out that he had an American woman and there was no limiter ...
We agreed to repeat the check-in tomorrow, because he complained about gasoline, but this will not save him: d

15.08.2009, 11:19

Stock Mazda 3 - 99% sure that I will pass it
What is it like??? How do you drive something?

How about the box? Did you crush your sneaker on the floor before arrival?

15.08.2009, 15:03

17.08.2009, 10:52

It is treated with aggressive driving
Personally, I don’t see the difference (Refers to manual mode) I can feel sick for a long time, then if necessary I switch to manual mode and the machine goes well and does not stupid ..
How many times do you have to start aggressively for the brains to understand that aggression is needed? it seems to me that 2-3 times will not help, the brain will think fluctuation ...;)

Stock Mazda 3 - 99% sure that I will pass it
In general, there are many nuances here, so to speak ...
Did you go to the mechanics or to D?
If on mechanics, then at what speeds did you switch and did not catch the cutoff?
Did you turn off the air conditioner?
Did you turn off Vds? (Although when you go from idle to mine it makes no difference)
Plus, gasoline also affects ...
Maybe Mazda is not a stock ...
turned off everything, and the radio incl.
I didn't notice the difference from Vdc, I don’t polish at the start
benz ... 95th, there is an opinion that benz can be better, but not with us
the last time I had a half of the tank, I don’t know how much (however, for the sake of victory, I don’t see the point of dropping a light bulb)

Tried both in D and manually, there is practically no difference
on D from 1 to 2, switching goes to 6000 (by video), from 2 to 3 to 6500 ...
in manual all switches to 6500, the cut-off never caught
4th does not count

In general, the date really goes a little faster, it always catches up slowly
but everything spoils the start, i.e. no jump at the start ...

Are you looking at before buying? What do you pay attention to first of all? Of course, after the cost of a car, most of us are interested in the dynamics of acceleration of the car and its fuel consumption. But have you ever wondered how the vehicle dynamics are measured when accelerating from 0 to 100 km / h? Do you think the figures indicated in the technical specification for the car are real? Let's figure it out.

Each automaker, before launching a car in a series, conducts many different tests with which they check it for reliability, quality and safety. If any problems are identified, engineers make changes to the machine. Further, before the most serial production, cars are tested to draw up technical characteristics. Of greatest interest, of course, are the tests that measure the fuel consumption of a particular car in city mode and when driving on the highway.

The manufacturer then calculates the average. Also, for complete technical specification data, each car undergoes tests that determine the dynamics of the car when accelerating from 0-100 km / h. In some cases, such as sports cars, cars are tested at speeds of 0-200 km / h and even 0-300 km / h.

How is vehicle dynamics determined and how is it related to fuel consumption?

As a rule, the dynamics of acceleration in most cases is determined by the automaker during special tests. Typically, the acceleration test takes place on a special dynamometric road. During this test, the test car travels a certain distance, accelerating to 100 km / h. First, the movement is carried out in one direction, then in the other.

Naturally, it depends on the class of the car and on the engine power. The type of gearbox that transfers torque to the wheels also plays an important role. Also, the aerodynamic characteristics of the body affect the acceleration rate of the car.

So, engine power primarily affects maximum torque (force). And, as a rule, the more power the motor has, the higher the torque in it. Thus, cars with more powerful engines more dynamic.

By the way, the type of engine does not usually affect the dynamics of acceleration. That is, it does not matter which engine is under the hood of your car - diesel or gasoline. If the motor has more power, then the car will be more dynamic.

As for the gearbox, it was previously believed that a manual gearbox transmits torque from the engine to the wheels faster than an automatic gearbox. Accordingly, earlier cars with manual transmission accelerated faster.

Today we cannot say that. The fact is that modern automatic or semi-automatic transmissions are complex electronic devices controlled by a computer, which in response is much ahead of that of even a professional driver. That is, modern automatic transmissions change gears faster than a person. Consequently, many new automatic transmissions outperform manual transmissions.

The fastest accelerating cars are usually sports cars and various luxury sedans and SUVs, which are often equipped with the latest powerful engines and sophisticated gearboxes. Basically, in such cars, engine power starts from 200 hp. from.

A special class of cars with powerful engines starts at 250 hp. from. True, cars with such power are subject to rather big taxation. For example, the rate transport tax for cars with a capacity of more than 250 liters. from. the highest in the country. But, as a rule, those who can afford to buy a car with a capacity of 250 liters. with., not particularly worried about the rate of transport tax. After all, buy a powerful luxury car only wealthy drivers can today.


Most of the cars with a capacity of more than 250 liters. from. have the dynamics of acceleration from 0-100 km / h on average from 4 to 7 seconds. which accelerate in less than 4 seconds, have a lot of power and cost a lot of money. In this range of acceleration, there are mainly premium sports cars.

With regard to the dynamics of acceleration of conventional cars, which are massively used by most motorists, on average such cars accelerate from zero to 100 km / h in about 9 to 11 seconds. In seconds, this is a small difference when compared to more expensive premium cars. But on the road, it's a huge difference. Although for the average traffic in the city, the dynamics of acceleration in 10 seconds is quite enough. More is not needed.

What about minivans and SUVs? What is the acceleration of this type of car? Most SUVs and minivans don't have any particularly fast dynamics. In general, real inexpensive SUVs and minivans acceleration is quite calm. The average acceleration range to "hundreds" is 11-13 seconds. But this class of cars is quite enough, since they are designed for leisurely driving in the city. For SUVs, it is not the acceleration dynamics that is important, but the off-road capabilities, which often need to be driven at low speed.

Is it true that the cost of maintaining powerful cars is more expensive?


Yes this is true. Most powerful cars cost owners much more than less powerful cars. The thing is that more powerful cars are equipped with more complex engines. Also, more powerful machines are equipped with more complex braking system, reinforced suspension, more expensive wheel rims and rubber.

And most importantly, most powerful cars require a better, more expensive engine oil... And the worst thing is that on more expensive powerful cars maintenance it is recommended to pass more often than on ordinary modern cars.

How does acceleration dynamics affect fuel consumption?

As a rule, at most of the time we do not press the gas pedal to the floor in order to get under way from a traffic light. But if you need to accelerate from a standstill in the minimum amount of time, then you need to push with more force. In this case, the car will accelerate more dynamically. But, as they say, in life you have to pay for everything. Remember that with the maximum acceleration dynamics possible for your car, you will pay with a ruble. No, no, we're not talking about speeding tickets. We are talking about fuel consumption, which almost doubles during fast acceleration from a standstill.

The most interesting thing is that manufacturers in their technical characteristics try not to indicate fuel consumption when dynamic acceleration car with 0-100 km / h, hiding this figure with its usual fuel consumption specifications in the city, on the highway and in the combined cycle.

How does car acceleration dynamics affect safety?


Oddly enough, the dynamics of vehicle acceleration directly affects safety. Do you know why? The thing is that very often accidents occur on the road due to the fact that some car did not have time to complete the maneuver. But why do many drivers fail to complete the maneuver on the road? For example, overtaking. The reason is precisely the dynamics of the acceleration of the car. It's just that many drivers at the time of the start of overtaking often mistakenly believe that they will have time to complete it, but in the end their self-confidence plays a cruel joke with them.

Yes, fast acceleration dynamics in modern world not often required. Especially in the city. But the more powerful and dynamic the car is, the less the risk of an accident due to maneuvers on the road. Especially when overtaking.

By the way, in the modern world, most car manufacturers offer us a wider selection of cars. Today you can choose the same model, but with different motors... Naturally, the lower the engine power, the cheaper the car will cost. That is, these days manufacturers offer us the same models for different size wallet and different preferences of motorists.

So when buying a car, think what is more important to you: economy or power. After all, the less the power of the car, the less it will consume fuel. But you will pay for this with the dynamics of acceleration. We advise you to consider your driving style when choosing a car. If you prefer a more dynamic management style vehicle, then we advise you to take a more powerful car. If the dynamics of acceleration from 0 to 100 km / h is not important for you and for you the most important indicator of a car is fuel consumption, then buy a car with a weak engine. Not only will it cost you less, it will also save you money on maintenance and refueling.

Acceleration to 100 km / h in ten seconds - slow? How to say. Compared to supercars, which exchange a “hundred” in four to five seconds, such a result, of course, will not impress. But here's another landmark: Hyundai solaris even in the fastest version with a 1.6 engine and "mechanics" according to the passport, it accelerates to 100 km / h in 10.3 s. But these cars, as a rule, drive faster than the general traffic. In addition, a new "ten-second" car can be bought at a reasonable price.

The most affordable offer is a sedan (1.6 liters, 114 hp), which, according to the passport, accelerates to 100 km / h in 9.5 seconds and costs 610 thousand rubles. Hatchback Kalina Sport with the same characteristics a little more expensive (617 thousand), and both cars have air conditioning, media system, parking sensors and other useful options. True, in our tests, a more powerful one for 850 thousand rubles - a forced 1.6 engine (136 hp), a modified gearbox and steering mechanism, a front suspension on a separate subframe, Renault brakes, a limited-slip differential - with a passport 9.2 s showed everything 10 sec.

Volkswagen polo GT

Sedan Volkswagen polo with a 1.4 TSI turbo engine (125 hp) is definitely faster than LAD: 9 s according to the passport, but 9.2 s for a car with a "mechanic" and 9.4 s for a DSG "robot". Prices start at 794 thousand rubles, and the two-pedal version costs 864 thousand. This Polo is well suited for daily use, chassis it almost does not differ from the basic version. Related liftback Skoda Rapid 1.4 TSI (125 hp) is only possible with a "robot", reaches 100 km / h in the same 9 s (9.5 to) and costs at least 915 thousand rubles. Of the pros - a practical liftback body, of the minuses - a stiff suspension.

TO powerful machines class C + without a million does not fit. Even Peugeot 408 with a 1.6 THP turbo engine (150 hp) and an "automatic", which, according to the passport, exchanges a "hundred" in 9.6 s (10.1 s to), taking into account the company discount costs 997 thousand rubles. His relative Citroen c4 should accelerate to 100 km / h in 8.1 seconds, but it didn’t take one and a half seconds longer, and prices - from 1 million 168 thousand.

Skoda Octavia Nizhny Novgorod assembly with a 1.4 TSI turbo engine (150 hp) and "mechanics", according to factory data, can develop 100 km / h in just 8.1 s, and with a DSG "robot" - in 8.2 s. Spacious interior, well-honed chassis, although the ride is not the best. Formally, prices start at 998 thousand, but for a car with appropriate equipment you need to pay at least 1.2 million rubles. The Octavia 1.8 TSI (180 hp) is slightly more expensive: about 1.3 million rubles for a liftback with a set of top-priority options, and acceleration to 100 km / h takes 7.3-7.4 s, depending on the gearbox. Moreover, the richest selection of tuning kits will make the Octavia even faster! There are also station wagons that are inferior to liftbacks by only 0.1 seconds in acceleration to "hundreds", but they are supplied from the Czech Republic and therefore more expensive by 320 thousand rubles.

Sedan Volkswagen jetta The 1.4 TSI (125 hp) is more comfortable, but slower than the Octavia: 9.8 s according to the passport, and the versions with the "robot" showed 10.6 s. At the same time, Jetta is even more expensive: at least 1 million 145 thousand rubles. And a rare modification with a twin-aspirated version of the 1.4 TSI engine (150 hp, 8.6 s) costs at least 1 million 309 thousand rubles.

Another option is a sedan Kia cerato 2.0 (150 hp): with the "automatic", the acceleration time is stated to be 9.3 s, although it was 9.9 s. The prices are attractive - from 1 million 90 thousand rubles. Sister sedan Hyundai elantra 2.0 (150 hp) slower: 10.5 s for a car with an "automatic" instead of the passport 9.9 s. Although in the arsenal there is also a version with "mechanics" with a declared time of 8.8 s. Powerful Elantras are available only in expensive trim levels, so they cost at least 1 million 165 thousand rubles.

Ford focus 1.5 EcoBoost (150 hp) can be not only a sedan, but also a hatchback or station wagon. With a passport 9.2 s acceleration, the hatchback showed 9.4 s. The sedan and station wagon should be slower by 0.1 and 0.2 s, respectively. In addition, Focus can boast of excellent handling, but cars with turbo engines are offered only in expensive trim levels at a price of 1 million 181 thousand rubles.

Mini cooper ? Turbo turbine 1.5 (136 hp) is capable of accelerating a car with "automatic" up to 100 km / h, although the passport data is 7.8-7.9 s, depending on the gearbox. The chassis is tuned in a combat way, but the prices bite: at least 1 million 189 thousand rubles for a bare three-door with "mechanics", and for the version with "automatic", climate control and other status options, prepare already 1.4 million rubles. The five-door versions are 30 thousand more expensive, and the prices for the heavier Mini Cooper Clubman station wagon (passport 9.1 s to 100 km / h) only start at 1 million 349 thousand rubles.

The most affordable car with an engine of more than 200 "horses" is a three-door Kia pro_cee'd GT (1.6 l, 204 hp), but with such a "charge" acceleration to 100 km / h is not impressive (according to the passport 7.6 s is promised). The gearbox is only mechanical, the chassis is without pepper, but such a hatchback is not bad for daily use. And the price is reasonable - 1 million 225 thousand rubles, and a richer equipped five-door Kia cee'd GT will cost 1 million 315 thousand. Hatchback Kia soul GT with the same motor and "robot" a little slower (7.8 s according to the company) and costs 1 million 370 thousand.

Kia pro_cee’d GT

For 1 million 350 thousand rubles, a tiny smart brabus fortwo with a 900 cc turbo engine producing 109 hp. Pocket rocket? Alas, because of the “robot” setting, even the factory data promises to accelerate to 100 km / h in 9.5 seconds, and the long-wheelbase Brabus forfour is slower by a whole second.

Within a million and a half, you can pick up a relatively dynamic business class car. Although in the passport 9.6 s for a 150-horsepower sedan Kia optima 2.0 with "mechanics" (1 million 160 thousand rubles) is hard to believe. And the version with a 2.4 engine (188 hp) and "automatic" promises acceleration in 9.1 s, but costs at least 1 million 480 thousand. Skoda Superb 1.4 TSI (125 hp) with "mechanics" for 1.3 million rubles should accelerate in 9.9 s, and the 150-hp version with a "robot" - in 8.8 s, but such a liftback even without options costs 1 million 434 thousand rubles. In addition, for 1 million 495 thousand it is proposed Mazda 6 with a 2.5 engine (192 hp) and a passport acceleration to 100 km / h in 7.8 s, although they showed 8.9 s.

Judging by the proprietary data, “ten-second” crossovers are also found in the agreed price range. For example, front wheel drive Nissan Qashqai 2.0 (144 hp, 1.27 million rubles) and Skoda yeti 1.4 TSI (125 HP, 1.22 million) s mechanical boxes gears accelerate in 9.9 seconds. Mazda CX-5 2.0 (150 hp, 1.37 million), depending on the transmission, does it in 8.9-9.4 s, and the all-wheel drive Skoda Yeti 1.8 TSI (152 hp, 1.39 million) - for 9 from. But the time of such a Skoda is 10.1 s.

If you donate options or persuade a dealer for a good discount, then you can count on a hatchback Volvo V40 Cross Country T3 (152 hp, from 1.47 million) with "automatic" and an acceleration time of 8.5 s. Or at BMW 118i (136 hp, from 1.49 million), which, depending on the gearbox, reaches "hundreds" in 8.5-8.7 s. Well, if you need a car that leaves 7 seconds, then cook at least one and a half million for Mini Cooper S (192 hp), which according to the passport accelerates in 6.7-6.8 s.

* Acceleration time to 100 km / h as measured by Autoreview

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