The hazard of premature or late ignition of the car ignition system!

1. If the ignition is too late, and the ignition is only done when the piston reaches the top dead center, the combustion of the mixture is mainly completed in the downward process of the piston, that is, the combustion process is carried out under the condition of increasing the volume, so that the area of contact between the hot gas and the cylinder wall increases, so that the heat converted into effective work is relatively reduced, and the maximum combustion pressure in the cylinder is reduced, resulting in overheating of the engine and the decrease of power.

2. If the ignition is too early, because the combustion of the mixture is completely carried out in the compression process, the combustion pressure in the cylinder rises sharply, and when the piston reaches the top dead center, it reaches the maximum, so that the piston is subjected to backlash, and the engine does negative work, which not only reduces the power of the engine, but also may cause deflagration and unstable operation, and accelerate the damage of moving parts and bearings.

Because the mixture occupies a certain amount of time to burn in the cylinder, the mixture should not be ignited at the top dead center of the compression stroke, but should be appropriately advanced, so that when the piston reaches the top dead center, the mixture has been fully combusted, so that the engine can obtain greater power.

The ignition time is generally expressed by the ignition advance angle, that is, the crankshaft for a period of time from the time the electric spark is emitted to the time when the piston reaches the top dead center.

The angle at which it was turned.

Ignition too early means that the piston builds up pressure before it reaches the top dead center, which prevents the piston from rising. Lack of power because the piston has to overcome the resistance to reach and cross the top dead center. When the ignition is too early and the intake valve is not completely closed, the combustion gas is poured into the intake pipe to burn, which is called backfire, which is also terrifying.

Ignition is too late, if ignition is at or beyond top dead center, then the pressure in the cylinder increases during the piston descent. A slight flame tends to catch fire with a piston. There is more power loss.

Because the exhaust valve will be opened in advance during the work process, the unburned mixture will run into the exhaust pipe to continue burning, which is called a gun, which is very loud!

It is best to achieve such an effect, just when the plug reaches the top dead center and a little later, so that the fire in the cylinder is the most vigorous, that is, when the pressure is the highest, at this time, the piston can be pushed more forcefully to rotate the crankshaft.

If the ignition is too early, the work done by the mixture conflicts with the upward force of the piston, and part of the power is used to impact the piston, resulting in detonation and a decrease in engine power.

Ignition is too late, the combustion process is mainly carried out in the power stroke, and part of the power done by the mixture is used to burn the cylinder wall, which causes the engine to overheat and the power to decrease.

If the ignition is too early or too late, the first point will be difficult to start, even if it is ignited, it will cause insufficient combustion, backfire or fire, and the second point is that the car is not powered enough, and the fuel is wasted, basically so much.

If the ignition is too late and the ignition is only ignited when the piston reaches the top dead center, the mixture burns on one side and the piston goes down on the other side, which is ignited.

The firing process is carried out under the condition of increasing volume, and at the same time, the area of contact between the hot gas and the cylinder wall is nucleated and the grinding mass is increased, and the heat is conducted.

Losses increase. large, thus converted into effective work of the free branch heat is relatively reduced, the maximum pressure of the gas decreases, which leads to the engine overheating, under power.

Fall. If the ignition is too early, due to the fact that the mixed combustion is carried out entirely in the compression stroke, the pressure in the cylinder rises sharply to the piston.

The maximum is reached before the top dead center is reached, which causes the piston to be recoiled, preventing the piston from continuing to move upward, not only increasing the power of the engine.

Lowering, there is also the possibility of accelerated damage to parts and bearings that can cause detonation movements, and even engine scrapping.

If the ignition is too early, it is easy to produce detonation. If the ignition is too late, the engine will be underpowered. The engine shook slightly.

Carbon deposition is serious and harmful to the emission system. This is usually not possible, after all, it is all computer-controlled. If this phenomenon occurs, the first thing to consider is whether the sensor corresponding to the Jianzi cave is faulty or the measurement value is inaccurate.

Consider whether there are any misalignments in the valve timing.

Ignition too late and too early can reduce engine power, increase engine wear and fuel consumption. So it should be dealt with as soon as possible.

Problems with the car's ignition system can cause the car's engine to have difficulty starting, unstable speed, increased fuel consumption, and the motor is constantly buzzing, upsetting people, and the engine will shake with it.

So why is there a problem with the ignition system of the car, so let me answer it for you, 1If you don't worry about the right ignition, you may miss a step. 2.

The ignition coil didn't work anymore. 3.The ignition coil leakage caused by the unusable, 4

The line received damage, 5Spark plug.

There is too much dust and lead. All of these problems can cause the ignition system of the car to fail.

So how to solve it, 1Replace the ignition ring, 2Go clean the spark plug on time, 3Check the wiring of the ignition system for the problem of slowness.

With the continuous increase of China's comprehensive strength, more and more models of license plates have increased, easy to use a lot of cars, in people's travel today, the car is indispensable, it facilitates our life, in daily travel, it is compared to electric vehicles and motorcycles.

Can be on rainy days.

When we are not hit by the rain, in the snow, we will not be loved by the heavy snow, so that we do not have to be exposed to the wind and sun, we can buy what we want, and no longer have to worry about things that are too heavy to buy, which greatly improves our quality of life.

Speaking of cars, domestic cars in our country.

It has also gradually entered the field of vision of the majority of people, such as: Geely. BYD.

East wind. Chery.

Changan. Hongqi also has many domestic brands in China, BYD this model is also very common in my country, my car is also BYD, he is a Chinese car brand, founded in 1995, it has always adhered to the development concept of "technology is king, innovation-oriented", and in May 2021, BYD ranked 458th in the "2021 Forbes Global 2000", which can be seen that BYD cars are getting better and better, both in China and in the world. Here, I also hope that BYD will get better and better, and my country's domestic cars will also get better and better.

If the ignition system fails, it will lead to the lack of cylinders in the starting plum potato machine, and the lack of cylinders in the engine will lead to serious shaking of the engine.

It will be particularly seriously affected, so that the vehicle will not be able to start normally, and then in the process of repeated ignition, the battery will not be able to Jingzheng Yuandian, which will collapse and affect the engine.

There is no way for the car to drive anymore, and the ignition system plays a great role in the construction of the car, and if something goes wrong, the car will break down.