What does the power and torque of a car engine mean?

Torque: Torque is the force that causes an object to turn. Engine torque is the torque that the engine outputs from the crankshaft end.

Under the condition of fixed power, it is inversely proportional to the engine speed, the faster the speed, the smaller the torque, and vice versa, it reflects the load capacity of the car within a certain range. Torque is one of the main indicators of a car's engine, as is power, and it is reflected in the performance of the car, including acceleration, climbing ability, and suspension. Its precise definition is:

The reciprocating motion of the piston in the cylinder, reciprocating at a time does a certain amount of work, and its unit is Newton. The work done at each unit distance is torque. In layman's terms, torque is an important criterion for measuring the quality of a car engine, and the torque of a car is proportional to the power of the engine.

For example, just like when a human body is in motion, power is like the body's durability, while torque is the body's explosive force.

So how is torque reflected in the use of automobiles? For family cars, the greater the torque, the better the acceleration; For off-road vehicles, the greater the torque, the greater the climbing; For trucks, the greater the torque, the greater the weight of the truck.

Torque is one of the main parameters to evaluate the performance of a car. Now there is an important statistic for evaluating a car, which is the acceleration time of the car from 0 100 km/h. And this acceleration time depends on the torque of the car's engine.

Generally speaking, the highest torque index can be reached at the speed of 2000 4000 minutes of the car, which means that the engine technology of this car is better and the strength is good. Some cars only reach the maximum torque index at around 5000 rpm, which shows that "power" is not the car's forte. For example:

Urban Pioneer and CL of Jetta Motors. The displacement of the Urban Pioneer is 1595, the power is KW74 5800, and the torque is Nm 150 4000;The CL also has a displacement of 1595, a power of KW53 5200, and a torque of Nm 121 3500. As you can see, both cars have the same displacement, with the former reaching 74 kW at 5,800 rpm and the latter reaching 53 kW at 5,200 rpm in terms of power.

This shows that the power of the urban pioneer is more powerful; The Urban Pioneer reaches a maximum torque index of 150 Nm at 4000 mins, while the CL reaches a maximum of 121 Nm at 3500 rpm. This is ample proof

The engine craftsmanship of this car is much superior to that of the CL.

Power is a physical quantity that measures the maximum speed of a car, and torque is a physical quantity that measures the acceleration ability of a car.

Power refers to the work done by an object in a unit of time, i.e., power is a physical quantity that indicates how fast or slow the work is done. The higher the power, the higher the speed, the higher the maximum speed of the car, and the maximum power is often used to describe the power performance of the car. The maximum power is generally horsepower.

ps) or kilowatts (kW), 1 horsepower is equal to kilowatts.

Torque in physics is the magnitude of the moment, which is equal to the product of the force and the force arm, and the SI unit is Nm nm. The higher the torque, the better the response of the car. Compared with the same type of engine car, the larger the torque output, the greater the carrying capacity, the better the acceleration performance, the stronger the climbing force, the fewer the number of gear shifts, and the relative reduction of wear and tear on the car.

Especially when the car starts at zero speed, it shows the superiority of the high torque and the fast lifting speed.

1. Torque mainly reflects the strength of a car, and its unit is N·m (N·m). Take an easy-to-understand example: there are two people, A can pick up a maximum of 50kg of dumbbells with all his strength, and B can only pick up a 25kg dumbbell with the same maximum effort, then it can be shown that A's strength is greater than B's.

By analogy, it can be said that the torque of car A is greater than that of car B, and usually, the torque will be said to be the same as the speed, for example, some cars will reach their maximum torque at 3000 rpm.

2. Another parameter that complements torque is power. The unit of power is kilowatts (kW), which is a measure of how much energy an engine is capable of producing. Again, an easy-to-understand example:

It's still the dumbbells that the two people lift the same weight, A has great strength, but the physical strength is not good, and they can only last for half an hour; b, although he has little strength, he is able to hold out for an hour.

By analogy, with the same load, A will do less work than B. Therefore, power is what determines a car's ability to accelerate continuously (i.e., its top speed).

3. Horsepower is another unit of power (abbreviation: ps) and the conversion relationship between them is: 1kw=. Some people often talk about how much horsepower, that is, power.

Overall, power can determine how much a car can go at top speed; Torque can determine how fast a car can accelerate, but when torque can't increase speed, then power needs to be relied on to increase speed. Therefore, power and torque go hand in hand.

The meaning of engine torque and power: 1. Torque. Torsion torque refers to the torsional torque output of the engine crankshaft, which can be simply and crudely understood as how strong the engine is; 2. Engine power refers to the speed of the engine's work.

The work done by an engine per unit of time is called the power of the engine. Corresponding to the indicated work and effective work, it is called the power of the finger strip and the effective power (output power), and the difference between the two is called the mechanical loss power; 3. The physical definition of power is the amount of work done by an object per unit of time. In the case of an internal combustion engine, we can understand it as the amount of energy produced by a fuel per unit of time.

Therefore, power is only a physical quantity that describes the speed of workmanship, the higher the power, the more energy is produced per unit of blind time, and often the top speed of the car is also higher.

The relationship between torque and power: power p = torque angular velocity. Because power p = work w time t work w = force f distance s, so p = f s u002ft = f velocity v.

More information about torque is as follows: 1. Introduction: Torque (also known as torque) is a special moment in physics, which is equal to the product of force and force arm, and the SI unit is Nm n. Engine torque

The maximum torque of the engine is related to the design of the engine's air intake, fuel supply and ignition systems, and the maximum torque can be achieved when the performance of these systems is optimally matched at a certain speed.

Vehicle power and torque represent vehicle speed and gradeability, respectively. Power is a physical quantity that measures the maximum speed of a vehicle, and torque is a physical quantity that measures a vehicle's ability to accelerate. The maximum speed of high-power vehicles is also greater, and the acceleration performance of high-torque vehicles is better.

Vehicle dynamics and torque are detailed below:1. Vehicle power refers to the work done by the vehicle in a unit of time, and power refers to the work done by an object in a unit of time; The greater the power, the greater the torque, and the higher the tension of the car.

Maximum power is often used to describe the dynamic performance of a car. 2.Automobile torque is the torque output at the end of the engine's crankshaft; The higher the torque of the car, the better the car responds to the operation.

Compared with cars with the same type of engine, the greater the torque output, the greater the carrying capacity, the better the acceleration performance, the stronger the climbing force, and the fewer the number of gear shifts, the less wear and tear the car will be. Especially when the car starts at zero speed, it shows the advantages of those high-torque vehicles, which can increase the speed faster.