What does car torque stand for What does car torque stand for

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. Torque is an important parameter of engine performance, which refers to the average torque output from the crankshaft end when the engine is running, commonly known as the "rotational force" of the engine. The greater the torque, the greater the "strength" of the engine output, the faster the crankshaft speed changes, and the better the car's climbing ability, starting speed and acceleration.

Torque varies with the change of engine speed, too high or too low, the torque is not the maximum, only at a certain speed or in a certain speed range has the maximum torque, this range is the speed or speed range given when the maximum torque is marked. The maximum torque generally occurs in the range of medium and low engine speeds, and as the speed increases, the torque decreases. The unit of torque is Newton-meter (n·m) or kilogram·meter (kg·m).

Torque in physics is the magnitude of the moment, equal to the product of force and force arm, the SI unit is Nm nm, in addition we can also see kgm, lb-ft such as torque units, since g = mg, when g =, 1kg, so 1kgm, and the pound lb-ft is the imperial unit of torque, 1lb=; 1ft=, 1lb-ft can be calculated. Torque is often referred to as torsion in everyday expression (these are two different concepts in physics). Now let's take an example:

The torque of the 8th generation Civic is, which means that the engine output torque at 4300 rpm, how can that force make a car more than 1 ton run? In fact, the torque emitted by the engine is amplified (at the cost of reducing the revs at the same time) and it depends on the gearbox, final pass and tires. The torque released by the engine is first amplified by the gearbox for "adjustable" torque (or reduced in overgear), then transmitted to the final pass (tail teeth) for further amplification (and further reduction in speed), and finally released through the tires.

For example, the 1st gear gear ratio of a car (the number of teeth ratio of the gear, the essence is the radius ratio of the gear) is 3, the tail tooth is 4, the tire radius is meters, and the original torque is 200Nm, and finally the torque of the axle becomes 200 3 4 2400nm (set the transmission efficiency to be 100%), after dividing the tire radius by meters, the part of the tire and the ground friction has a driving force of 2400nm, which is enough to drive the car.

When it comes to mechanical efficiency, every time a gear is transmitted, there will be a power loss, the mechanical efficiency of the manual gearbox is about 95%, the automatic gearbox is miserable, about 88% left, and the universal joint efficiency of the transmission shaft is about 98%. Overall, the driving force of a car can be calculated by the following formula:

Torque gearbox gear ratio Final gear ratio Mechanical efficiency.

Driving force = ——

Tire radius in meters

One more thing: why is the power of an engine calculated from torque?

We know that the power p work w time t power w force f distance s so, p f s t f velocity v

Here v is the linear velocity, and in the engine, the linear velocity of the crankshaft The angular velocity of the crankshaft The radius of the crankshaft r is substituted into the above equation to obtain: power p force f radius r angular velocity ; Whereas force f radius r torque.

Derives: power p torque angular velocity so the power of the engine can be calculated from torque and rpm.

The unit of angular velocity is radian seconds, and in the radian system one square represents 180 degrees.

How to calculate torque.

Torque = 9550 Motor power Motor power input speed ratio Usage factor.

Car torque is the torque that the engine outputs from the end of the crankshaft. 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, reflecting the load capacity of the car within a certain range.

Torque is one of the main indices of the engine, as is power, which is reflected in the performance of the car, including acceleration, climbing ability, and suspension.

Definition of automobile torque: the reciprocating motion of the piston in the cylinder, reciprocating to do a certain amount of work at a time, the unit is Newton-meters. The work done per unit distance is torque.

To put it simply, the engine has high torque, fast acceleration, high horsepower, and a high maximum speed! (This one is for gasoline engines).

Because the diesel engine has a lot of torque... Therefore, most of them are used in large vehicles... For example, a truck that pulls 10 tons of cargo... Maybe it could get off to an easier start ... But its top speed certainly can't reach 100 per hour...

But a Ferrari sports car (gasoline engine, high horsepower) may be able to reach a top speed of 400 per hour... But Ferrari couldn't move a 10-ton cargo, and it was hard to even get off the ground.

But it's because the gasoline engine doesn't have a lot of torque... However, what is needed for rapid acceleration is torque, so sports cars are suitable for gasoline engines with large displacement! The large-displacement gasoline engine can ensure high horsepower while having high torque!

<> car torque represents the torque force of the car and is also the torque output by the engine from the crankshaft end. Under the condition of fixed engine power, the torque is inversely proportional to the speed of the engine, the faster the speed, the smaller the torque of the engine, the slower the speed, the greater the torque of the engine, and the balance also reflects the load capacity of the car within a certain range. The torque and power of the engine are the same, this is one of the main parameters of the engine, the power of the engine can reflect the performance of the car, including the acceleration of the car, the ability to climb and the suspension, etc., the higher the torque, the better the reaction of the car running, the greater the torque, the greater the bearing capacity of the car, the better the acceleration performance, the number of engine shifts will be less, which can reduce the wear of the engine.

Torque refers to the force that keeps the wheel spinning. For example, a rotating tire will slowly stop spinning due to the influence of friction without continuously applying an external force. Therefore, we need a force to keep the wheel turning, and that force is torque.

It can generally be understood that the greater the torque, the greater the power and explosive power of the car, the easier it is to pull heavy objects or climb mountains, and the better the acceleration performance at a certain moment. In fact, the horsepower is quite understandable. Horsepower is a unit of engine power.

The higher the engine speed, the more horsepower. Of course, horsepower has a lot to do with engine quality. The better the engine, the more power and the more horsepower.

When we step on the throttle, we see that the engine speed starts to increase and the horsepower increases. The direct manifestation is that our car is faster. Horsepower is directly proportional to engine power.

In fact, torque is easier to understand. Let's not be swayed by its name. Torque is irrelevant.

Torque is also a reflection of engine power. It's just that unlike horsepower, the visual expression of horsepower is the speed of the car, while the intuitive expression of torque is the power of the car. It's like a tug-of-war between us.

Tug-of-war between cars. Whoever has the most torque has a good chance of winning. However, it should be noted that the torque of the car is maximized, which is related to the engine speed.

When the engine speed reaches a certain value, the maximum torque of the car will be **. If the engine speed continues to rise, its torque may not increase, but it will also decrease. Horsepower and torque are like sprints and tug-of-war.

The better the quality of the engine, the shorter the acceleration time per 100 km, the greater the horsepower, and the smaller the engine speed that produces the maximum torque. Horsepower determines the speed of the car, and torque determines the time it takes for the car to accelerate instantaneously.

Good evening, car torque refers to the amount of torque output by the engine, usually expressed in Nm meters. Torque is a moment that represents the amount of force that can rotate an object around a fixed axis of rotation, and is often used to describe the dynamic performance of physical systems such as machinery and vehicles. In automobiles, torque is an important parameter to describe the engine's power and acceleration ability, as well as an important indicator to measure the vehicle's climbing ability and traction gravity.

Most vehicles require more torque at low speeds and when starting, so in these situations, strong torque can have a positive impact on car rental performance. At the same time, torque also determines the traction capacity and acceleration ability of the car.