A while ago, the major media reported on the news that the city’s six-ring limit will limit the number of vehicles in the country. The content is like this. Guoyi vehicles will be banned from entering Beijing’s six-ring on January 1, 2016. Within this time, the National 2 Vehicles will choose to implement the restriction policy, and will not say whether this proposal will be realized within the year. Although it is always the habit of ZF to do things after the first release of the wind, it is really not realized. First, the vehicles discharged by the State II have not been in a few years.
Many people may know that their car is Guosi or Guowu (my colleague has answered the question of how to identify the emission standards of their cars yesterday), but what is the difference between Guosi and Guowu? If your car was imported in the early years, then the domestic policy is still not perfect, it may be Europe, Europe and Europe. So what is the difference between the European standards and the domestic ones? After the National Six standards, are they drawn from European standards?
First of all, to solve the first problem, the domestic upgrade every few years, such as the National Second National 3, the National Three National 4, which indicators have been improved?
Upgrading the emission standard is nothing more than improving the car's air pollution. We introduced the harmful gases emitted by the engine when introducing the three-way catalytic converter. They are NOx (nitrogen oxides), CO (carbon monoxide) and HC (hydrocarbons). ), but the harmful substances emitted are not only these gases, but also inhalable particulate matter (we know the particulate matter such as PM2.5), so there are many aspects to the upgrade of each emission standard, in addition to the pollutants and particulate matter emissions. The standards and so on.
The improvement of automobile fuel standards is also critical
Since the national standards are all based on the European standard, what is the difference between them?
The difference between the national five and the European five is still there. The fifth stage of the OBD country does not monitor NO temporarily; and only the monitoring is not implemented, that is to say, the vehicle can still be opened after the alarm, and is not affected too much. The Euro 5 standard OBD monitors NO; and once the OBD alarm occurs, the normal operation of the vehicle is limited to the mileage. Exceeding the limited mileage, the vehicle power is limited, that is, not only monitored but also executed.
Conclusion: Today's domestic standards for emissions are in line with international standards, but the quality of oil products needs to be improved, so that emissions can be completely improved. From the perspective of emission standards, standards are improved every few years. In response to the problems at the time, for example, the gasoline standard of the National Five increased the restrictions on particulate matter. After all, the direct injection gasoline engine became popular, and it produced a lot of particles, so the standard for direct injection machines soon appeared.
Magnetic Pod Vape,Disposable Pod Vapes,Ceramic Vape Pod,Pod Vape Pen
ALD GROUP LIMITED , https://www.aldvapor.com