- What is torque and horsepower? (Auto knowledge) When we buy a car, we will consider the maximum horsepower, the biggest torque, but most people only know how much the better, what is the substantive reference value of purchasing a car? What is the true meaning of their representative? In fact, it is popular, the torque is better than the car, and the horsepower is the ability to maintain the car to run forward. Torque is the translation of English "Torque", which is equivalent to the concept of work or energy, it is a calculated value, equal to multiplying power arm. To increase torque, one is the size of the increase, and then an increase of force arm. Torque indicates the ability to accelerate the object. In general, the vessel of the automotive engine is generally torque. If the power is indicated by torque, it can be written as a formula: n = Mw, m is torque, and W is the angular velocity of rotation. In other words, we have said that the torque high-horsepower is also the same as the speed. If the torque and the speed of the torque are inversely proportional, the engine torque of the rotational speed is relatively small. Horsepower English is called "HorsePow-Er", as the name is the ability of horses, referred to as "HP", English, and beautiful, etc., as well as the Unit of English horsepower; Horsepower's German "," PFerDestarke ", referred to as" PS " ", Germany, Japan countries also use this as a unit of metric horsepower. Horsepower is not a force, it is the ability to work in unit time, which is the concept of power (Power). 1PS75KG. Msec, if a horse can drag 75 kilograms at a speed of one meter per mite, it has a power of the daily horsepower. In fact, a horsepower is not big, if you can bear 10 kg, and run 100 meters in 13.3 seconds (7.5 meters per second), you have a power of 1 horsepower.
Horsepower is said that the power is that the unit is in time. If the power is represented by n, n = w / t, where W is work, T is time. The work can be represented by the product of force and displacement. It is the physical formula we are familiar with: W = fscosa where F represents, S represents displacement, and A is an angle between the direction and the displacement direction. When studying the car engine piston, the effects of F and S pairs W are mainly discussed. In the engine, F is related to the piston area and the cylinder pressure. F = Pa, P is the pressure in the cylinder, the larger the pressure generated by the fuel combustion, the greater f, and the area of the piston top, we all know the formula for calculating the circular area: A = 3.14159d2 / 4 (where D is Cylinder diameter). Therefore, the larger the cylinder diameter, the greater the A, so that f is more. The S is the stroke of the piston, that is, the displacement of the piston reciprocating movement, is equal to the distance from the upper stop to the distance. The larger S, the greater W. Power is how much work in unit time, so it is necessary to consider making a quick slowness. The same cylinder diameter and the engine, if the speed is different, the horsepower is different. The speed of the speed is fast. That is to say, there are four main factors that measures the horsepower, cylinder pressure, piston area, piston stroke and engine speed. Among them, the piston area and the itinerary are directly related to the noun "displacement" we are familiar with. The product of the piston area and the stroke is a displacement of a cylinder. If the engine has n the same cylinder, its displacement is NAS. The following is introduced to the concept of horsepower and torque for readers. First, the torque of the gasoline engine symbolizes the amount of oil that can be sucked into its cylinder, such as the lung capacity of our human body, this intake is increased with the increase of the throttle and the gradual increase of engine speed, but it will not It has been bigger, and it will reach the peak to a certain speed, which is the maximum torque value that usually say. When the speed of the engine rises, it will gradually decline, which is the characteristics of the internal combustion engine such as gasoline engines in torque, and is also the least ideal place. Gasoline vehicles must be launched to have torque, and must be hung up, but also have a clutch or self-rowing torque converter to make the engine have sufficient torque to start the car. If the throttle is not enough, the car is still not moving, the clutch is too fast, the car will jump, then turn off, this is the result of the engine in low speed torque. Second, the engine torque can be changed and increased through the short-term short-term short-term short-term, and can be changed and increased by manual gearbox gear sets or automatic torque converters and planetary gear sets. The manual file of modern cars is generally five advanced files, and the automatic gear is mostly four advanced files. There are so many files, the purpose of the design is to make the driver with the car, and the road conditions will be added to the file. Don't change the file, if the engine is always tortured, let it in the state of torque, if you want to vibrate, you have to work hard to work for a long time. Third, the horsepower is equal to the torque, which symbolizes how many mouth oils can be sucked into the unit during the unit time, so when the throttle is increased, the engine speed is gradually rising to the maximum torque point, although the amount of suction has reached the peak However, since the speed is also increasing, the number of inhalation is still increasing, so the horsepower can still rise, until the maximum horsepower point. 4. Engine speed generating the maximum torque is an important reference data for a car. If your car is often driving in the city, or often involves water cross-country, it is preferred to use the maximum torque in the low speed (for example, about 3,000 per minute).
