The national IV emission standard is expected to be fully implemented in 2015. For this reason, many car companies have expressed that they have prepared for the standard upgrade. However, some experts say that from State III to State IV, only one engine problem may arise. Because, under the National IV standard, the engine must be a high pressure common rail electronic control system , but the current capacity of the electronic control system on the market can not fully meet the demand. This is why some experts have suggested that after the full implementation of the National IV standard, the supply of heavy-duty diesel engines is likely to reproduce the situation that was hard to come by in 2009.
It is understood that this concern is not superfluous, especially after the comprehensive upgrade of the National IV emission standard in 2014, the problem will surface, and then there may be orders for some companies unable to meet user requirements in time because there is no engine support. In addition, it should be noted that the bottleneck of this engine is not from the engine itself, but from the electronically controlled high pressure common rail required by the National IV engine. Since most of the medium- and heavy-duty cards of State III are EGR, there is not so much demand for electronic control. However, after upgrading to China IV, the vast majority will be the post-processing system of electronically controlled high-pressure common rail SCR. The demand for electronic control is rigid and the production capacity is insufficient.
At present, the electronically controlled common rail system for most of the domestic engines is mainly from Bosch and Denso . It is understood that the combined production capacity of the two companies will not be able to meet the demand for over one million heavy-duty engines each year in the country. Moreover, some of the light-duty IV engines are also used as high-voltage common rail electronic control systems. It is reported that even if Bosch and Denso's production lines are all started, there will only be tens of thousands of sets of output per month. After commercial vehicles are all upgraded to the National IV emission standard in 2014, the domestic medium- and heavy-duty engines that use the Bosch system each year will exceed one million units. .
Obviously, if all national IV standards are implemented nationwide in 2015, the lack of capacity in the electronic control system may be immediately apparent. By then, there will not be enough electronic control systems to supply the engine. It will be impossible to complete the assembly of the engine. It is obvious that the OEM will not be able to obtain sufficient National IV engines. In this case, the engine will become a bottleneck again. Many people may have noticed that before the National IV upgrade, many companies vowed to include vehicle companies, engine companies, and urea production companies, all of which announced that they had prepared for the full upgrade. Do not know whether these companies have taken into account that the supply of electronically controlled common rail systems may not meet demand?
Of course, under the conditions of a market economy, the contradiction between supply and demand is normal, and the market will naturally adjust it. If there really is a shortage of electronic control systems, this may not be a bad thing for China's auto parts industry. Not long ago, Fu Yuwu, Chairman of the China Association of Automobile Engineers, said in an interview with reporters: “Now some parts and components companies in our country are also producing electronic control systems. If China IV is fully implemented, foreign brands are in short supply, and vehicle companies are bound to It will give these Chinese companies more opportunities.†Fu Yuwu also analyzed that “only when China’s independent electronic control production enterprises are given more matching opportunities, China’s electronic control products have the opportunity to continuously improve and improve. The engine electronic control system may temporarily encounter a bottleneck, but in the long run, it will be beneficial to the development of China's spare parts industry."
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