What does it mean when the particle trap indicator light is on in the car?

If the driving condition is not satisfied, and the vehicle cannot automatically start the regeneration program for a long time, the instrument will display an alarm prompt of "particle trap needs to be regenerated". In this case, after starting the engine (indicated in the water temperature gauge in the medium and above position), drive the vehicle according to the driving conditions in the regeneration program so that the vehicle can start the regeneration program.

Particle traps are an integral part of the exhaust emission reduction system that vehicles are equipped with. It captures fine particles before they enter the atmosphere, reducing pollution to the atmosphere.

Diesel particulate trap DPF

Brief introduction. Diesel engines with good fuel economy and power are widely used in various industries, such as motor vehicles, generator sets, ships, etc. However, particulate matter (PM) emissions from diesel engines have been a constant concern.

PM can be suspended in the air for a long time, polluting the environment and affecting human physical and mental health. With the increasingly stringent emission standards of diesel engines, diesel particulate traps (DPFs) have become one of the necessary technologies for diesel vehicles to meet the emission standards. The design of the DPF must be considered in terms of function, performance, maintenance, etc., i.e., filtration efficiency, differential pressure loss, high temperature resistance, ash corrosion resistance, ash cleaning mileage, etc.

The engine fault light is on, indicating that there is a problem with the electronic control system. You need to check the fault code with a computer. Which sensor is being checked? Or it is caused by poor line contact. Depending on the meaning of the fault code, it is easier to find the problem.

When driving, we can increase the speed a little, increase the temperature of the exhaust pipe, and the high temperature of the exhaust pipe can burn the particles in the particle trap, thus completing the cleaning of the GPF. Avoid going to small gas stations to refuel. The quality of oil at small gas stations is worrying.

If the vehicle adds fuel with more impurities, it will undoubtedly increase exhaust particulate matter, and GPF is more likely to clog; Use low-ash oils. The bottom ash engine oil is the country's six special models, and it is easy to block dpf without using low ash oil; Avoid sitting idle for long periods of time. When idling for a long time, the exhaust gas cannot be completely burned, and the particulate matter in the exhaust gas will increase, resulting in GPF blockage.

The China VI emission standards are China VIA and China VIB, and strictly speaking, China VIB is the real China VI standard. China VIA is only a transitional phase between China V and China VI.

The major cars ** have not separated them, how to judge whether their car is a national VIA or a national VIB, and the next two methods are also introduced here by the way. One is that when you buy a car, there will be an environmental protection report similar to a certificate in the information bag, and there will be clear emission standards. If this card is missing, you can use the second method, that is, directly log in to the national motor vehicle environmental protection inquiry network, enter the frame number and engine number to query the English abbreviation of its electronic particle trap GPF, which is similar to the principle of three-way catalytic converter.

Its installation location is more common behind the three-way catalyst. Among them, there are also honeycomb channels, where the particulate matter in the exhaust gas is intercepted inside the carrier and on the wall surface by interception, collision, diffusion, gravity sedimentation, etc., and then undergoes a chemical reaction under certain high temperature conditions to be converted into non-polluting substances.

At present, the B model, which basically meets the requirements of China VI, is equipped with particulate traps, but the possibility of reducing emissions through engine-related technologies cannot be ruled out. Comparatively installing a particulate trap will lead to an increase in exhaust resistance, resulting in negative pressure that is not conducive to power output. If the vehicle model is equipped with a particle trap, it can be judged by these two methods.

The particulate trap is also monitored by the engine electronic control unit, which also has corresponding sensors. Some rely on temperature sensors, others on pressure sensors. In other words, a vehicle with two more sensors on its exhaust pipe means it has a particle trap.

Of course, it can also be seen that there is a cylindrical part on the exhaust pipe behind the three-way catalytic converter, which is the particle trap.

You may have heard a saying that the six French models with particle traps must use low-ash engine oil, otherwise it is easy to be damaged! Let's start with what low-ash engine oil is. There is a parameter in the oil test called sulfate ash.

The international standard for ash scoring is that the higher the value, the higher the ash content. Low ash, medium ash, high ash. The ash value is the value measured by the non-flammable burning substance after the engine has been burned based on the total base number (TBN) of the engine oil, and can be calculated if the total base data is generally known.

The approximate calculation is the total base ash fraction, e.g. the total base 8 ash fraction.

A ceramic filter installed in the diesel engine emission system, which can capture particulate emissions before they enter the atmosphere, so the alarm is that there is a problem with the diesel engine emission system.

GPF is a gasoline engine particle trap, and the light is on to indicate that active regeneration in driving has been unable to effectively remove GPF deposited particulate matter. Nowadays, many manufacturers have to make strict optimization of the emission system in order to meet the national VI standard, which is often in order to reduce fuel consumption and meet the requirements of the national standard, but it will cause the particle trap to be blocked during use. The soot blockage can be regenerated in the way specified by the manufacturer, but if the dust ash blockage is irreversible, it needs to be treated at the 4S store.

The particulate trap alarm is installed in the exhaust emission reduction system equipped with the vehicle, which means that the regeneration process will be automatically activated when the alarm level is reached during the vehicle driving.

It is equivalent to a disposable mask