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• Hello everyone and welcome. In this video we're going to be talking about the difference between torque and horsepower.

大家好，歡迎。在這個視頻中，我們將討論扭矩和馬力之間的差異。

• And we're not going to be using any strange analogies and very minimal math; just talking about theory and keeping it easy to understand.

而且我們不會使用任何奇怪的類比和非常簡單的數學;只是談論理論並使其易於理解。

• So we'll start things off with torque. Torque is simply a force applied at a distance.

因此，我們將以扭矩開始。 扭矩只是一個距離施加的力。

• You can think of it as a twisting force. So if you're trying to tighten something down using a wrench,

你可以把它想像成一種扭曲的力量。所以，如果你想用扳手擰緊一些東西，

• You apply a force, you press down at a distance, the length of that wrench, and that supplies a torque at whatever you're tightening.

你施加一個力，你按下一定距離，那個扳手的長度，並在你收緊的任何東西上提供扭矩。

• Same idea with a socket wrench. So if you're tightening down a bolt you apply a force at a distance,

套筒扳手也是如此。因此，如果你擰緊螺栓，你可以在遠處施加一個力，

• And that supplies a torque to that bolt to fasten down that bolt.

並且為螺栓提供扭矩以固定螺栓。

• Now the same thing is happening with your engine.

現在你的引擎也發生了同樣的事情。

• So combustion within your cylinder is what's supplying the force pressing this piston down, and then that piston is pressing down on a crankshaft.

因此，氣缸內的燃燒是向下推動該活塞的力，然後該活塞向下壓在曲軸上。

• So as you can see, you've got your force pressing down,

所以你可以看到，你已經壓下了你的力量，

• You've got your distance where it's pressing on the crankshaft, the axis of rotation is the center here the piston is pressing offset from that center so at a specific distance and

你已經有了它在曲軸上按壓的距離，旋轉軸是活塞向中心偏移的中心，因此在特定的距離和

• Combined that gives you your engine torque, force pressing down at a specific distance that gives you a twisting force

組合可以為您提供發動機扭矩，在特定距離處向下壓力，從而為您提供扭力

• That's the torque that your engine is making now torque can be manipulated very easily

這就是您的發動機所產生的扭矩，現在可以非常輕鬆地操縱扭矩

• By using gears or by using leverage for example

例如，通過使用齒輪或使用槓桿

• So this will supply you know with the maximum amount of force I can supply to it a certain amount of torque

因此，這將為您提供我可以為其提供一定量的扭矩的最大力量

• But then if I were to use something much longer

但是如果我要用更長的東西的話

• Now I have more leverage I can press at a greater distance and since torque is force multiplied by distance

現在我有更多的槓桿作用，我可以在更大的距離上按壓，因為力矩乘以距離

• The torque here is going to be significantly greater

這裡的扭矩會明顯更大

• Okay, so what is power and how do these two relate? Well, power is the rate at which work is done

那麼，什麼是力量以及這兩者如何相關？那麼，權力就是工作的速度

• So what does that mean? Well if I move this car from here to here. I've done a certain amount of work

那是什麼意思呢？好吧，如果我把這輛車從這裡搬到這裡。我做了一些工作

• I've moved this from here to here, now if I do it very slowly

我把它從這裡移到這裡，現在如果我這麼慢的話

• it doesn't require much power. if I do it very quickly it requires more power

它不需要太多電力。如果我這麼做很快就需要更多的力量

• Now ultimately I'm accomplishing the same thing

現在最終我正在完成同樣的事情

• I'm moving the car from here to here, but I'm doing it faster

我正把車從這裡搬到這裡，但我的速度更快

• The rate of work is greater therefore

因此，工作率更高

• It takes more power so more power going quickly than going slowly

它需要更多的動力，因此動力比快速增加更快

• So power ultimately is what gives you speed, what gives you acceleration now the two are connected so in in our context

所以力量最終會給你速度，現在兩者在我們的背景下連接起來加速

• Here looking at our engine. We have torque as a force pressing down acting at a distance

在這裡看著我們的引擎。我們將扭矩作為向下按壓的力作用

• Well how fast that's happening is our power so that's our rpm. So horsepower is torque multiplied by rpm

那麼發生的速度是我們的動力，這就是我們的轉速。所以馬力是轉矩乘以轉速

• So how often this interaction is occurring...

那麼這種互動經常發生的頻率......

• And so how fast is this spinning while we're still getting that consistent force acting on the piston so the faster it spins

所以這種旋轉的速度有多快，而我們仍然會在活塞上產生一致的力，因此它旋轉得越快

• Supplying that same amount of force at that same distance the more power we're going to make

在相同距離處提供相同數量的力，我們將獲得更多的動力

• Okay, so how about an example to help explain things further?

好的，那麼如何幫助進一步解釋事情呢？

• Let's say we have two different vehicles that are exactly the same. Now, I know these look different, but we're just going to pretend

假設我們有兩種完全相同的不同車輛。現在，我知道這些看起來不同，但我們只是假裝

• They're exactly the same nothing about them is different except this one has 200 horsepower and a hundred pound feet of torque

他們完全一樣，沒有什麼是不同的，除了這個有200馬力和100磅英尺的扭矩

• Those are the peak numbers. This one has 200 pound feet of torque and a hundred horsepower so half the power

這些是最高數字。這個有200磅英尺的扭矩和100馬力，所以功率的一半

• Twice the torque this one has twice the power half the torque

扭矩的兩倍，這個扭矩的兩倍

• Which one is going to accelerate faster assuming both of them have the same mass?

假設它們具有相同的質量，哪一個會加速更快？

• And everything else about them is equal

關於他們的一切都是平等的

• Well the one with more power is always going to be quicker because that is the rate at which work is done

那麼功率更大的那個總是會更快，因為這是工作的速度

• That's how quickly it can accomplish work move something from one place to another it can move it faster

這就是它能夠多快地完成工作從一個地方移動到另一個地方它可以更快地移動它

• Now this one has more torque, great

現在這個有更大的扭矩，很棒

• But as we know torque can be manipulated through gearing so gears act just like leverage

但正如我們所知，扭矩可以通過齒輪傳動來控制，因此齒輪就像槓桿一樣

• So while this doesn't have as much torque as this

所以雖然這沒有那麼多的扭矩

• If I'm applying torque to something I - my power doesn't change, how strong I am doesn't change

如果我對某些東西施加扭矩 - 我的力量不會改變，我的力量不會改變

• But I can use leverage just like cars can use gears to make more torque so this car with twice the power

但是我可以使用槓桿就像汽車可以使用齒輪來製造更大的扭矩，因此這款車具有兩倍的動力

• But half the torque can use gears to accelerate faster, so it can use a longer

但是一半的扭矩可以使用齒輪加速更快，因此它可以使用更長的時間

• You know leverage arm a greater a more aggressive gear ratio

你知道槓桿臂更大，更具侵略性

• So that it can put that power down and ultimately because it makes more power it can do more work more quickly

因此它可以降低功率，最終因為它可以提供更多功率，因此可以更快地完成更多工作

• It will be the faster car.

這將是更快的汽車。

• Okay so now let's talk about horsepower and torque curves because when a manufacturer gives you a horsepower and a torque figure

好的，現在讓我們談談馬力和扭矩曲線，因為當製造商給你一個馬力和扭矩數字時

• They're just giving you the peak figure for each of those

他們只是給你每個人的最高數字

• They're not giving you, you know the amount of torque that that produces across all of the engine rpm range

他們沒有給你，你知道在所有發動機轉速範圍內產生的扭矩量

• And so if you look at a torque curve, it'll have some peak along that curve with respect to rpm

因此，如果你看一下扭矩曲線，它會沿曲線相對於轉速產生一些峰值

• so that's the engine rpm in which the force pressing down on the piston is at its greatest so that's peak torque

這就是發動機轉速，其中壓在活塞上的力最大，因此達到峰值扭矩

• and what that means if you stay within a set gear, if you're in one gear

如果你在一個檔位內，如果你在一個檔位內，那意味著什麼呢？

• let's say you're in third gear, you will feel the - the force pressing you against your seat will be the greatest at peak torque now

讓我們說你處於三檔，你會感覺到 - 現在你的座位上的力量將是最大的扭矩

• That's assuming you're staying at a constant gear ratio

假設你保持恆定的傳動比

• You're staying within one gear

你留在一個檔位內

• So now if you look at the horse power curve overlaid over that torque curve

所以現在，如果你看一下覆蓋在那條扭矩曲線上的馬力曲線

• At some point, peak horsepower will occur

在某些時候，會出現峰值馬力

• And that's when the engine is doing the most amount of work it can do and so at this point

那時引擎正在做它能做的大部分工作，所以在這一點上

• You may think okay if I want to accelerate fastest

如果我想加速最快，你可能會認為沒問題

• I need to be at peak torque, so you want to be at that peak spot

我需要處於峰值扭矩，所以你想要達到最高點

• Well, that's only true for a set gear and that's only within that gear if you can manipulate the gear ratio

嗯，這只適用於固定檔位，如果你可以控制齒輪比，那隻能在那個檔位內

• Let's say peak torque is right here

讓我們說峰值扭矩就在這裡

• But peak power is over here, later in the RPM range you can sacrifice torque

但峰值功率在此處，在RPM範圍內，您可以犧牲扭矩

• But get a more aggressive gear ratio, and ultimately accelerate more quickly by accelerating at peak power

但是要獲得更具侵略性的齒輪比，並最終通過加速峰值功率來加速

• So why is that well that's because you're multiplying your torque by the gear ratio

那麼為什麼那麼好，因為你的扭矩乘以齒輪比

• So you have peak torque multiplied by a lower gear ratio versus a lower torque

因此，您有峰值扭矩乘以較低的齒輪比而不是較低的扭矩

• But multiplied by a significantly higher gear ratio at peak horsepower

但是在峰值馬力下乘以明顯更高的齒輪比

• That will give you your peak acceleration

這將為您提供最高加速度

• So for example CVT transmissions

例如CVT變速器

• Which can adjust the gear ratio constantly

這可以不斷調整齒輪比

• If they adjust that gear ratio to maintain the engine at peak horsepower

如果他們調整齒輪比以保持發動機處於峰值馬力

• They will accelerate the fastest rather than if you were to manually shift gears, or have an automatic transmission

它們將加速最快，而不是手動換檔或自動變速器

• Which shifts between gears and you'll feel that peak sensation

在齒輪之間轉換，你會感受到最高的感覺

• that peak force against the seat at peak torque as you cross over it, but the actual true amount of peak acceleration

當你越過它時，峰值力對著座位的峰值力，但實際的峰值加速度真實量

• That's possible with that engine would be if you manipulated gearing if you

如果你操縱了傳動裝置那麼引擎就是可能的

• Manipulated leverage to allow you to be at the highest horsepower

操縱槓桿使您能夠達到最高馬力

• Level with the most aggressive gear ratio possible

可以達到最具侵略性的齒輪比水平

• so a quick review, torque is simply a force acting at a distance

所以快速回顧一下，扭矩只是一個距離作用的力

• Horsepower is how quickly you can accomplish work, now both of them require each other

馬力是你完成工作的速度，現在兩者都需要彼此

• They're a function of each other horsepower is torque multiplied by rpm, so you've got a specific torque

它們是彼此功能的函數是扭矩乘以rpm，所以你有一個特定的扭矩

• and then you spin the engine at a certain speed, that will give you power

然後你以一定的速度旋轉發動機，這將給你力量

• And so ultimately they are you know they require one another you can't have horsepower without torque

所以最終他們知道他們需要彼此，沒有扭矩就不能擁有馬力

• But the most important figure if you're looking at "how fast will a car be able to accelerate?"

但最重要的數字是，如果你看到“汽車能加速多快？”

• "What will its top speed be?" that comes down to power because that's telling you how quickly?

“它的最高速度是什麼？”歸結為權力，因為這會告訴你多快？

• Can you accomplish a certain amount of work

你能完成一定的工作嗎？

• So hopefully this has cleared things up; the differences between torque and horsepower

所以希望這可以解決問題;扭矩和馬力之間的差異

• If you have any questions or comments, feel free to leave them below. Thanks for watching

如果您有任何問題或意見，請隨時將它們留在下面。謝謝觀看

Hello everyone and welcome. In this video we're going to be talking about the difference between torque and horsepower.

# 馬力與扭矩--簡單的解釋 (Horsepower vs Torque - A Simple Explanation)

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OolongCha 發佈於 2021 年 01 月 14 日