Is it serious that Volkswagen diesel vehicles exceed the emission standard? Is it dirty compared to

Volkswagen is an emission fraud, which is equivalent to taking the engine of China III or even lower to pass off as the engine of China V and China VI, and must be heavily fined! Transit meets the emission standards and does not fake! Is it serious that Volkswagen diesel vehicles exceed the emission standard? Is it dirty compared to domestic diesel cars

The impression of diesel vehicles as a whole is still relatively low-end products. Although the technology of individual manufacturers has been relatively advanced, the overall diesel engine technology in China is still relatively backward. However, it is difficult to promote diesel vehicles in China, not only because of technical problems and emission standards, but also because of consumer psychology.

First of all, it is believed that diesel vehicles are prone to pollution. When it comes to diesel vehicles, people think of black smoke, peculiar smells and noisy noises, and "cuttlefish" is the image name of diesel vehicles with serious exhaust emissions. As a result, in the old concept of many consumers, diesel cars are synonymous with low-end cars, and they have nothing to do with sedans, especially high-end cars.

The biggest advantage of diesel cars is energy saving and fuel saving, but how many consumers who choose Audi's grade are willing to "drop their worth" in order to save a few "fuel money"? Secondly, at present, the quality of diesel produced in various regions of China is uneven, and its quality has not yet reached the application standards of foreign diesel engines. Consumers' concerns about oil problems are very real.

Fuels with higher sulfur content will affect the high-pressure supply system, electronic control system and after-processor of diesel engines, which will not only lead to the deterioration of the diesel vehicle emission system, but also shorten the system life. Therefore, in order to adapt to China's water and soil, it is necessary to carry out technological transformation first; However, the market is scattered and the pricing of diesel is not marketized, and it is difficult to prompt petrochemical enterprises to invest in the existing diesel production system to carry out technological upgrading, so as to improve the quality of oil products, and improving the quality of oil products has become a bottleneck in the promotion of diesel cars. In addition, the cost factor is also something that consumers have to weigh carefully.

The diesel version of the same model car is much more expensive than the gasoline model. Due to the relatively few users of diesel cars, diesel car accessories can not keep up, accessories are not complete, generally need to be booked in advance, ** is relatively high, such as a set of gasoline filters only more than 100 yuan, and a set of diesel filters will cost more than 300 yuan. With the gradual synchronization of oil quality and advanced diesel engine technology with international synchronization, it should only be a matter of time before Chinese accept diesel cars.

Neither can compare who pollutes the most. In terms of harmful gases, there is definitely a lot of pollution, and the pollution of gasoline engines is concentrated in sulfides.

and nitric oxides. Diesel engine pollutants are mainly particulate pollution. The emissions of the CO Nox CH compound in a gasoline engine are significantly higher than in a diesel engine, while the carbon emissions.

is significantly higher than gasoline engines.

From the point of view of environmental protection, the same displacement of diesel engines, in carbon dioxide.

Emissions of carbon monoxide and hydrogen compounds are indeed much lower than those of gasoline engines. However, due to the difference in the composition of the diesel engine, it will directly lead to several times more respirable particles and nitrogen compounds in diesel engines than gasoline engines, which is the primary cause of urban exhaust pollution**.

There should be no way to compare who pollutes more. As far as harmful gases are concerned, gasoline engines must be polluting, and the pollution of gasoline engines focuses on sulfides and nitrogen oxides. Diesel engine pollution focuses on particulate matter pollution.

The emissions of CO Nox CH compounds in gasoline engines are much higher than those of diesel engines, while the soot emissions of diesel engines are much higher than those of gasoline engines.

In the same case, only PM of diesel engines is higher than that of gasoline engines, while CO, NOX, CH and other emissions are much lower than those of gasoline engines.

Of course, the aftertreatment system is now in use, and the aftertreatment system for diesel engines is very different from the aftertreatment system for gasoline engines, and the emissions after treatment can meet the national requirements.

Diesel is more polluting because the extract is less pure than gasoline.

The solid emissions of one diesel vehicle are equivalent to the emissions of 70 gasoline vehicles.

One of the main reasons is that the quality of domestic diesel is very poor, and the poor reasons include smelting technology and first-class quality. Of course, it is a strategic need to ensure that diesel is cheap, and upgrading technical equipment will improve diesel **, can you imagine that diesel is more expensive than gasoline? The cost of transportation, mining, and construction will rise sharply.

Comprehensively improve the cost of all walks of life. Example: The freight for a truckload of vegetables was originally 500, but now it is 800, and the price of ordinary people will immediately increase when they eat vegetables.

The second reason is that the domestic diesel engine technology is very backward, the exhaust treatment technology is also relatively expensive, and now the promotion is liquid ammonia exhaust treatment, of course, the advantage of backwardness is that the cost is very low, so that commercial vehicles will have a competitive advantage of low prices. For example, a 3-meter diesel light truck is only 40,000 or 50,000 yuan, and the heavy truck is only a few hundred thousand.

The third is the best protection, automobile manufacturers are large taxpayers and large employers in the local area, and there are a large number of supporting enterprises. Is it because of the low emission level of diesel engines that manufacturers are closed? **Drink the northwest wind.

There are still many problems, some of which seem to be solvable, but in fact they are still full of contradictions. You come to ask this question to show that you haven't read Chai Jing's "Under the Dome", which is very clear, but it had a great impact at that time, and ** has been blocked. You can see if there is any relevant textual material.

Volkswagen in the boiling "emission gate" incident, has been doing its part, although the world's huge compensation and fines, can be described as a resounding slap in the face to the public, and in the electrification process Volkswagen has also not relaxed, the advent of ID 3 has also let consumers see the change, but the current question is, where should diesel cars go, is it because of choking waste food or continue to develop, recently Volkswagen gave the answer, according to foreign media reports, Volkswagen has developed a "twin dosing" The selective catalytic reduction system, which can reduce nitrogen oxide emissions by 80%, is achieved through two catalytic converters, which may not have much impact on the domestic market, but in the European market, it is very common for family cars to be diesel powered, which can be described as a good thing. (**From the Internet).