马力和扭矩之间的差异

扭矩和力量之间的关系通常比女性更复杂。但不是。这就是全部。

“扭矩是对力的即时测量，它没有时间分量。通过将时间组件添加到扭矩中来得出功率。”

At the cruises and shows up and down the land, one of the most asked questions is: ‘How much power you got mate?’ It’s a direct reference to amount of power or the grunt that engine pumps out. That said, only few people understand the difference between torque and power.

权力，或者人们通常问的是引擎的必和必拓。在发动机的飞轮上测量制动马力。在工厂中，这是在发动机台上计算的，并在测试室里将发动机从汽车上运行。

对于像我们这样的普通人，我们必须使用测功机，也称为滚路道路来测量车轮的功率。测试时，“制动”力量的数量被称为其制动马力。为了在曲柄上找到功率，估计将百分比添加到车轮BHP数字中。

Dyno用于测量发动机性能

History of the word ‘Horsepower’

回去，工程师名称詹姆斯·瓦特（James Watt）开发了蒸汽机。他需要一些东西来解释发动机的功率输出。那个时代的潜在客户可能与马匹有很好的关系，因为它们是驾驶机械任务的主要来源。正如我们今天所知，这导致了衡量标准“马力”的力量。Read:如何照顾涡轮增压汽车

他决定衡量一匹马可以工作的速度。他使用许多Dray马来工作，将各种重量拉到矿井上，计算出它可以在一分钟内执行22,000英尺/磅的工作。即，它可以在一分钟内将重量增加22,000磅，直至一英尺的高度。

詹姆斯意识到有人可以通过带一匹更强大的马来无视他的主张来挑战他。因此，他决定增加50％的一马力标准。这为我们提供了迄今为止使用的功率标准：1马力是一匹马以33,000英尺/磅/分钟的速度工作的速度。观看此视频以了解更多：

被汽车制造商用来告诉电源和扭矩的不同术语混淆了吗？让我们帮助您：

力量：

1 Bhp = 0.746KW = 1.01 PS

1 kW = 1.341Bhp = 1.359 PS

1PS = 0.986Bhp = 0.735kW

扭矩：

1 lb/ft = 1.355 Nm = 0.138 kgm

1 nm = 0.737 lb/ft = 0.101kgm

1 kgm = 0.980 Nm = 7.23 lb/ft

Dyno无法测量马力，它可以测量扭矩

马力是通过知道扭矩和发动机速度来计算的。扭矩是在车轮上施加的力。扭矩本质上是发动机能够以每种速度（RPM）的力量或强度为发动机的每次旋转的力量推动。力量乘以发动机速度。It gives you the rate at which it can do work.In other words, torque is the work that the engine can do (how strong that it), and when that’s multiplied by the speed (rpm), it gives you the rate at which it’s able to do work- Power.As you can see, both torque and power are directly related. It’s not uncommon to get them confused when it comes to car’s engines. In fact, many professional racing drivers often get mixed up between the two.

question

Torque wins Races?

几年前,一个顶级赛车builder,拉尔夫广泛go fed up of his drivers getting it wrong. He set out to prove that speed isn’t all about power. He built a 1600 cc BDA screamer engine with 225 Bhp (but correspondingly low torque figures). He also built a second engine that was 1800cc low revving, that produced 175 Bhp (correspondingly high torque). Both the engines we fitted to an identical Escort race cars. He put both these cars against each other on Oulton park racetrack to prove his point to people that think power matters the most. Cars were driver by same driver, same day, and on the same tyres. End result: Car with 175 Bhp was faster by 2.5 seconds per lap. Yes, Torque counts more than people think!

马力决定最高速度（选择齿轮，因此最高速度与最大功率重合），并确定加速度。

火箭

查看上面的图表以了解扭矩和幂之间的关系。为了获得最佳的发动机性能，该图表的目标最大。这意味着具有最宽的扭矩带的最高扭矩。但这不是给出最高终端速度的原因，您需要马力。方程式显示为电源，扭矩曲线绘制在图上，如果给引擎的一组曲线，则线路应以5252 rpm- rpm-有用的检查。

电源=（扭矩X发动机速度）÷5252Fact: At 5252 rpm, torque and BHP are equal. At any rpm above 5252, Bhp value is higher that torque; below 5252 rpm, value of torque is higher.

另请阅读：关于引擎ECU重新映射