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Automobile engine torque: performance analysis and Binance downloadtechnical analysis In modern society, automobiles have become a necessity for people to travel. And the performance of the car is directly related to the driver's driving experience and safety. Among them, the torque of the car engine is a very critical parameter, which directly affects the acceleration performance, traction and power performance of the whole vehicle of the car.This article will analyze the performance and technical analysis of the torque of the automobile engine to help readers better understand the performance characteristics of the automobile engine. I. What is the torque of a car engine? The torque of a car engine refers to the size of the rotational moment output by the engine, which can be used to describe the power performance of the engine. It is expressed in commonly used metric units, usually in the unit of "cow·meter" (N·m). It can be understood as the size of the rotational force output by the engine. In vehicle design and manufacturing, torque is an important parameter, which is mainly used to evaluate the performance of the engine and whether the drive system of the whole vehicle is reasonable. II. Engine torque and car performance 1. Acceleration performance When the car accelerates, the torque of the engine is converted into power and transmitted to the wheels, so that the movement of the vehicle accelerates. The torque output of the engine determines the acceleration performance of the car.Generally speaking, the greater the torque, the better the acceleration performance of the car. Two. Transmission efficiency During the driving process, the torque of the engine is transmitted to the wheels through the transmission system, and there will be energy loss in the process. If the torque output by the engine is smaller, the transmission efficiency will be reduced, and the energy required by the vehicle during driving will increase, resulting in a decrease in the fuel economy of the vehicle. 3. The traction is easy to slip in icy and snowy weather. And the torque output by the engine affects the size of the wheel traction. The greater the torque, the greater the traction of the wheel to the ground, and the better the starting performance of the car. III. The torque curve of the engine. During the operation of the engine, the torque output by the engine is not always unchanged. It will change with the change of engine speed and throttle opening, forming a torque curve.The shape and size of the torque curve determine the actual performance of the engine. 1. The value of the highest point of the torque peak torque curve is the torque peak of the engine. At the same exhaust volume and rotation speed, the higher the torque peak, the stronger the engine power. However, the higher the peak value does not mean that the engine must be excellent, and the shape of the curve also needs to be considered. Two. Torque downline torque downline refers to the minimum torque value output by the engine, which often determines the starting capacity of the engine and the stability of low-speed driving. If the torque output of the engine is too low, the car may have performance problems such as insufficient power and slow acceleration. 3. The shape of the torque curve The shape of the torque curve also has a considerable impact on the performance of the car. If the torque curve of the engine is flat, that is, the torque output is relatively uniform in the medium and high speed range, the driving performance of the engine will be better.If there are large fluctuations and intervals in the torque curve, it means that the torque output of the engine is unbalanced, which will affect the driving experience and fuel economy of the vehicle. IV. Analysis of engine torque technology In order to achieve better engine performance, modern automobile manufacturers have adopted a large number of torque technology improvements. At present, the common technical routes mainly include the following aspects: 1. Increasing the displacement of the engine can obtain a larger valve opening and make the combustion more complete, so as to obtain higher torque power. Of course, reasonable emission reduction measures need to be taken on this basis. Two. The turbocharger is a device that increases the intake pressure. By adopting turbocharging technology, the torque of the engine output can be automatically increased at low speeds to improve the performance of the engine. However, the disadvantage of turbocharging is that it is relatively expensive and susceptible to air pressure and high temperature environment.3. The variable valve timing system is adopted. The variable valve timing system can control the opening time of the intake and exhaust valves of the automobile engine, so as to improve the performance of the engine. This technology can make the torque curve of the engine more flat at high speed and achieve better engine performance. V. Summarizing the engine torque of the car is one of the important indicators affecting the performance of the whole car. It reflects the driving experience and power performance of the car to a certain extent. After understanding the torque performance and technical analysis of the car engine, we can better choose the model that suits our driving experience, and at the same time, we can carry out the relevant work more smoothly when maintaining and maintaining the vehicle.

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