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Car engine is okx.com loginthe heart of modern cars and one of the important parts for the whole vehicle to run normally. Whether the engine can start smoothly is directly related to driving safety and comfort. The moment the car engine lights up, the whole vehicle seems to be given new vitality and can gallop freely on the road.The release process of the fuel mixture to ignite the car engine can be divided into four processes: intake, compression, ignition and exhaust. Among them, the ignition process is a key step in the work of the car engine. It can ignite the fuel mixture and produce high-temperature and high-pressure gas to drive the piston to work, and then drive the wheel movement. Ignition requires three elements: fuel, air and ignition energy. Liquid fuels are usually gasoline or diesel, and air is introduced through intake pipes; ignition energy can be electric sparks, pressure or heat energy. The engine control unit (ECU) will control the injector to spray an appropriate amount of fuel, while allowing the electric spark plug to generate an arc, ignite the fuel mixture and cause an explosion. The ignition methods of gasoline engines and diesel engines are different. Gasoline engines usually use ignition plugs to break through the high-voltage current through the arc between the two electrodes and ignite the fuel mixture;Diesel engines use high-temperature and high-pressure compressed gas to spray fuel into the combustion chamber and ignite it through spontaneous combustion. High-standard automobile engines are designed according to high-standard standards and are composed of hundreds of precision-made parts, each of which bears an important responsibility. These parts are usually made of high-quality steel, aluminum alloy, copper, etc. For example, the engine cylinder block must be able to withstand high pressure and corrosion caused by friction and high temperature environment; the crankshaft needs to rotate at a very fast speed to withstand heavy loads; the valve and piston must be sealed to prevent gas leakage in the combustion chamber. In order to ensure the reliable performance of automobile engines, manufacturers usually carry out strict testing and optimization. They will test the engine in a simulated laboratory environment to simulate real driving, such as high-speed driving, acceleration, deceleration, emergency stop, etc.This test technology is called vehicle dynamics test (VDT), which can accurately measure the output power, torque, fuel efficiency and other basic parameters of the engine. In addition, manufacturers will also conduct durability tests to determine how many miles the engine can withstand and how many years later it needs to be repaired or replaced. Looking to the future, with the rapid development and continuous improvement of technology in the automobile industry, automobile engines will also experience more changes and innovations. For example, electric and hybrid vehicles have begun to gradually replace traditional gasoline engines and become the direction of more attention. In addition, due to the increasing awareness of environmental protection, some brands such as Volvo have begun to implement plans to ban internal combustion engines, and more and more manufacturers have begun to turn to new energy models. Put togetherThe lighting of the car engine is the only way for the whole vehicle to run normally, and its performance is directly related to the quality and safety of the vehicle. In the future, with the rapid development of automobile technology, automobile engines will undergo unprecedented changes, providing people with a more reliable and environmentally friendly driving experience.

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