Sihai network: for those who want to know about the power performance of the car, they will be very concerned about the torque of the car engine, because this is the main parameter related to the engine performance. Engine torque refers to the torque output by the engine from the crankshaft end. Under the condition of fixed power, it is inversely proportional to the engine speed. The faster the speed is, the smaller the torque is. On the contrary, the larger the torque is, it reflects the load capacity of the car in a certain range.
The maximum torque of the engine is related to the design of the intake system, fuel supply system and ignition system of the engine. At a certain speed, the maximum torque can be achieved when the performance matching of these systems reaches the best. In addition, the engine power, torque and speed are related. The specific relationship is: power = K & times; torque & times; speed, where k is the conversion rate. When choosing the engine, we should also weigh how to use it reasonably and not waste the existing functions.
Torque, like power, is one of the main indexes of automobile engine, which is reflected in automobile performance, including acceleration, climbing ability, etc. Its accurate definition is the cross product (m) of the vector (L) and the force (f). Physically, it refers to the force that causes the object to rotate multiplied by the distance to the rotating shaft. It can indicate the magnitude of the force output by the engine (because the radius of the crankshaft in the engine is certain). Generally speaking, torque is an important standard to measure the quality of an automobile engine. The torque of a car is directly proportional to the power of the engine.
For a family car, the greater the torque, the better the acceleration; for an off-road vehicle, the greater the torque, the greater the climbing slope; for a truck, the greater the torque, the greater the pull weight. The greater the torque of the car, the better. It is the same when driving. In the case of the same displacement, the greater the torque, the better the engine. When driving, you will feel that the car is free to speed up, and you can speed up if you want to speed up. It's a good feeling of "sticking to the back". Torque is one of the main parameters to evaluate the performance of a car. An important data for evaluating a car is the acceleration time of the car at 0-100km / h. The acceleration time depends on the torque of the engine.
Generally speaking, the highest torque index can be achieved when the engine speed is relatively low, which means that the engine technology of this car is better and the power is better. Some cars only reach the highest torque index at about 5000r / min, which shows that 'strength' is not the car's strong point. It can be said that the driving pleasure we pursue mainly comes from torque, that is to say, the so-called "push back feeling". If the maximum torque of a car's engine appears in the range of rotation speed that we often use, such a car can definitely bring you extraordinary driving pleasure. For the family car, the perfect engine maximum torque should appear at a very low speed, while the maximum power appears at a relatively high speed.