OKX app

How to calculate engine horsepower (Introduction to the method and OKX appprinciple of calculating engine horsepower) In the modern automobile industry, engine horsepower is a very important indicator. The greater the power, the more powerful the power it can provide, which makes the vehicle more competitive.So, what is the calculation method of engine horsepower? This article will introduce the principle and method of engine horsepower calculation to you. I. Definition of horsepower "horsepower" is a mechanical unit used to measure the power of mechanical equipment. Francis Burdett Thomas Phillimore introduced the term in 1812. The definition of horsepower is "how much work can be done per second", that is, an object that can act one pound of force on moving one foot of mass. At present, horsepower has been defined as a unit of engine power. II. Horsepower calculation method The horsepower of the engine can be calculated according to the torque and speed of the engine. Most car manufacturers will indicate the engine power in the vehicle's technical specification manual or literature.Usually, horsepower can be converted into kilowatts, and the specific conversion coefficient can be obtained from the international system unit. The power of the engine is closely related to the torque (torque) of the engine, which can be calculated by the following formula: Horsepower = Torque × RPM ÷ 5252, where RPM represents the engine speed and Torque represents the engine torque. 5252 is the standard unit that converts the ratio between feet and minutes to ensure the conversion of rotational speed and torque into horsepower. For example, if the output torque of the engine is 300 Nm and the engine speed is 6000 rpm, the calculation formula for engine power is as follows: Horsepower = 300 × 6000 ÷ 5252 = 342 horsepower Note that this is just a speculative value, actually Interhorsepower may be deviated due to fluctuations in torque and speed.Therefore, car manufacturers usually standardize the actual horsepower measurement and record it in the technical specification manual. III. Principle of horsepower calculation Horsepower calculation is based on Newton's second law (also known as the law of mechanics), that is, acceleration is equal to the force on an object divided by the mass of the object. In this case, the object is the elbow shaft, output shaft or any other rotating movement component of the engine. The higher the engine speed, the more rotations per minute, so the greater the output power per minute. At the same time, the torque of the engine will also affect the output power. The greater the torque, the greater the torque of the suspension and wheels that the engine can drive, so the greater the output power. Multiply the torque and rotational speed of the engine and divide it by 5252 because this is the ratio between the unit of the unit of measurement. If this value is equal to x, then the result of x is the horsepower of the engine.IV. Conclusion Engine horsepower is an important indicator to measure the power of a car, which can be calculated by the torque and speed of the engine. Although the horsepower calculation method is very simple, the horsepower calculation method of new power vehicles such as carbide engines, electric vehicles and hybrid vehicles is different from that of traditional cars. Therefore, you need to pay attention to these details when choosing a new car.

Contact Us
Phone：020-83484658