Emission standards for automobiles, European?

Vehicle emissions refer to harmful gases such as CO (carbon monoxide), HC NOx (hydrocarbons and nitrogen oxides), and PM (particulates, soot) emitted from exhaust gases. They are all harmful gases produced by the engine during the combustion work process. The causes of these harmful gases are different, CO is an intermediate product of incomplete fuel oxidation, when the oxygen is insufficient, CO will be produced, and the large concentration of the mixture and the uneven mixture will increase the CO in the exhaust.

HC is an unburned substance in the fuel, and some of the fuel is emitted before it can be burned due to uneven mixture, cold combustion chamber wall, etc. NOx is a substance produced during the combustion of fuel (gasoline). PM is also a substance produced by lack of oxygen during fuel combustion, of which diesel engines are the most obvious.

Because the diesel engine adopts the compression ignition method, the cracking of diesel oil at high temperature and high pressure is more likely to produce a large amount of soot visible to the naked eye. In order to curb the production of these harmful gases and prompt automobile manufacturers to improve their products to reduce the source of these harmful gases, Europe and the United States have formulated relevant automobile emission standards. Among them, the European standard is the automobile emission standard that China borrows from, and the current domestic new cars will indicate the European standard for engine exhaust emissions.

European standards are implemented by the emission regulations of the Economic Commission for Europe (ECE) and the emission directives of the European Community (EEC), which is now the European Union (EU). Emission regulations are voluntarily endorsed by ECE participating countries, and emission directives are mandatory by EEC or EU participating countries. The European regulations (directives) of automobile emissions standards have been implemented in several stages before 1992, and Europe has been implementing the European type certification emission limits since 1992.

1. The scope of application is different.

Chinese standards only apply to China, while European emission standards are required and enforced by the European Union, and most developing countries follow European standards.

2. The starting time is different.

According to the actual situation in China, from the early eighties, a specific plan for the phased implementation of the first easy and then the difficult was adopted; Europe began to implement Europe in 1992, Europe began to implement Europe in 1996, and Europe began to implement Europe in 1996.

1. The implementation date is different.

1. European emission standards: formulated and implemented in 1959.

2. Automobile emission standards: formulated and implemented in 1983.

Second, the scope of use of the standard is different.

1. European emission standards: China's national automobile emission standards are only used in China.

2. Automobile emission standards: The scope of use of European emission standards includes countries and developing countries that have participated in the enforcement of EU requirements.

Most of them follow European standards.

Legal analysis: At present, China's automobile emission standards basically adopt the European standard system. In Euro II standards, emission limits for carbon monoxide and hydrocarbons, nitrogen oxides and particulate matter are 2 2 g km and 0 5 g km.

China's "Light Vehicle Pollutant Emission Limits and Measurement Methods ()" is equivalent to the "European" standard; The "Pollutant Emission Limits and Measurement Methods for Light Vehicles ()" is equivalent to the "Euro II" standard. The specific standards of Euro II standard in China are: carbon monoxide for gasoline vehicles does not exceed 2 2g km, and hydrocarbons do not exceed 0 5g km; Carbon monoxide for diesel vehicles does not exceed 1 0g km, hydrocarbons do not exceed 0 7g km, and particulate matter does not exceed 0 08g km.

After the implementation of Euro II standards, motor vehicle pollutant emissions will be reduced by 30 to 50 compared with Euro I standards. It is reported that Beijing is likely to implement European standards in 2005. Feng Yuqiao, director of the Atmospheric Environment Management Division of the Beijing Municipal Environmental Protection Bureau, made a vivid analogy to reporters

7 cars that implement European standards are equivalent to the pollutant emissions of 1 carburetor; 14 cars that implement European standards are equivalent to the pollutant emissions of 1 carburetor carret; The European standard is more demanding and more perfect. "In layman's terms: if the earliest car emissions are 1, Euro 1 is a reduction of 80, Euro 2 is Euro 1 and then 50, Euro 3 is Euro 2 and then 50.

Legal basis: "Law of the People's Republic of China on the Prevention and Control of Air Pollution" Article 54 Motor vehicle emission inspection institutions shall pass measurement certification in accordance with the law, use motor vehicle emission inspection equipment that has been verified and qualified in accordance with the law, conduct emission inspection of motor vehicles in accordance with the specifications formulated by the competent department of ecology and environment, and network with the competent department of ecology and environment to achieve real-time sharing of inspection data. The motor vehicle emission inspection agency and its person in charge are responsible for the authenticity and accuracy of the inspection data.

The competent department of ecology and environment and the certification and accreditation supervision and management department shall supervise and inspect the emission inspection of motor vehicle emission inspection institutions.

The national standard is a national standard formulated according to the specific situation of our country, and the European standard is the standard commonly used by the members of the European Community, and the European standard is slightly higher than the national standard.

The national fifth-stage motor vehicle pollutant emission standard, that is, the "national five standard", the emission control level of the national fifth standard is equivalent to the fifth stage emission standard being implemented in Europe.

Pacific Automotive Network.

Euro 7 emissions are expected to come into effect as early as 2025, and the emission standards will further reduce the maximum allowable emissions of air pollutants. Take, for example, the proposed new emission standard, nitrogen oxides.

NOx) will be reduced to 30 milligrams per kilometer, which is already well below the error value of current portable emission measurement systems, which is the strictest emission in history.

At present, the current "European buried six" emission standard in Europe is already very high, and the current "national six" emission standard is formulated with reference to the European "euro six" standard to a certain extent. However, Europe will not be satisfied with the emission performance of motor vehicles, and will eventually transition to zero-emission clean energy by gradually pressing car companies to upgrade their technology.

The era of motor vehicles.

A few days ago, according to foreign media reports, European car companies are worried that the next round of Euro VII emission standards in the EU will increase the cost of compliance, so that the production of non-plug-in hybrids.

Or a car with an all-electric drivetrain is unprofitable.

It is reported that Euro 7 emissions are expected to be implemented as early as 2025, and its emission standards will further reduce the maximum allowable emissions of air pollutants.

In the case of the proposed new emission standard, nitrogen oxides (NOx) will be reduced to 30 milligrams per litre-kilometre, which is already well below the error of current portable emission measurement systems, which is the most stringent emissions in history.

In addition, even this year, a number of car companies in Europe have faced huge fines from the European Union because it is difficult to meet emission standards. According to the survey report, in 2020, the European automotive industry will be fined up to about 34 billion euros (about 259 billion yuan) by regulators due to difficulties in meeting emission standards.

Among them, Volkswagen.

It will have to pay a fine of 4.5 billion euros (about 34.2 billion yuan), which is also the highest fine among EU car companies.

Regarding the upcoming Euro 7 emissions, a senior engineer at Volkswagen said that if the Euro 7 emissions plan proposed by the European Union's Automotive Emission Standards Advisory Group comes into effect, Volkswagen will no longer be able to sell a polo car for 10,000 euros.

At the same time, he said that if they cover the Euro 7 emission standard for high-horsepower vehicles, such as trailers, it will mean the end of internal combustion engine vehicles, and in fact, even 48V mild hybrid vehicles cannot meet such low emission requirements.

In addition, manual transmissions will have to be abolished.

model in order to be able to control the gearbox.

The precise time of the gear switch will reduce the acceleration performance of the vehicle as a result, and it will be even slower, and the car will be like taking sleeping pills.

The same. Photo by text: Too noisy Qiyu Pingyang Automobile Network Q&A called beast).