What is the relationship between car power, torque, and horsepower?

[DeAlessandra]

Here are the detailed introductions to engine power, torque, and horsepower: 1. Power: Power refers to the work done by an object per unit of time. The greater the power, the higher the rotational speed, and the higher the maximum speed of the car. Maximum power is commonly used to describe the dynamic performance of a car. 2. Horsepower: Maximum power is usually expressed in horsepower (PS) or kilowatts (kW), with 1 horsepower equal to 0.735 kilowatts. 3. Torque: Torque is an important parameter of engine performance, referring to the average torque output from the crankshaft during engine operation. The greater the torque, the higher the engine output, and the faster the change in crankshaft speed, resulting in better climbing ability, starting speed, and acceleration of the car. Maximum torque generally occurs in the medium to low-speed range of the engine, and it tends to decrease as the speed increases. The unit of torque is Newton-meter (N·m) or kilogram-meter (Kg·m).