What does kW mean for an engine?

1 Answers
OCarter
07/29/25 3:23pm
Engine kW represents power. Power calculation formula: Power P = Speed V multiplied by traction force F. Therefore, the product of F and V determines the car's power. The car's power determines its speed, while torque determines its acceleration. Rated power: Rated power refers to the power when an electrical appliance operates normally. The value of power is the rated voltage of the appliance multiplied by the rated current. If the actual power of the appliance is greater than the rated power, the appliance will be damaged; if the actual power is less than the rated power (P_actual < P_rated), the appliance cannot operate normally. Relationship between power and speed: Under normal operating conditions, the output power of a power device or the input power of an energy-consuming device. It is often measured in "kilowatts." It also refers to the power that a machine produced in a factory can achieve during normal operation. That is, the commonly referred power of a machine. The rated power of a machine is constant, P=Fv, so the force generated by the machine and its operating speed are inversely proportional. For example, when a car is driving on a flat asphalt road, the required traction force F is smaller, allowing for higher speeds; when the road is uneven or going uphill, a larger traction force is required, necessitating a switch to lower speeds.
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