Technology must be trusted for reliable service
Beijing will implement the National IV emission standards in two stages starting from March 1. The full implementation of the National III emission standards has brought even greater shocks to the commercial vehicle market.
The upgrade of environmental emission standards is a general trend. With commercial vehicles of the State III standard selected, economic efficiency, reliability, and maintenance services have become the last resort of users.
The economy is fundamental
After the implementation of the State III standard, the exhaust emission of motor vehicles was only half that of the National II standard. In Beijing and Guangzhou where the State III emission standards were implemented in advance, good social and environmental benefits have been achieved. However, many commercial vehicle users have found that the national III vehicles they purchased have upgraded their emission standards and fuel consumption has also increased. As oil prices continue to rise, emission reductions should save energy.
Lin Wei, Secretary-General of the China Light Vehicles Joint Analysis Society, said that this problem is mainly due to the fact that some companies' State III solutions have to sacrifice engine fuel consumption and other performance.
The biggest difference between the State III engine and the State II engine is the replacement of the mechanical pump with an electronic fuel injection system, which makes the matching between the fuel supply quantity and the intake air quantity more accurate, and the combustion of the oil product is more complete, thereby achieving the unity of energy saving and emission reduction. . This means that the advanced performance and matching of the EFI system determines the overall performance of the State III engine.
Iveco Lightbus uses Sophie III engine, introduced from Italy as a whole, and adopts the advanced German Bosch high-pressure common rail system, which has a good match, and therefore the fuel consumption is reduced by about 10% compared to Sofim II engine.
Technology must be reliable
At present, there are three kinds of technical means for the implementation of State III in domestic commercial vehicle engines: electronically-controlled high-pressure common-rail engines, electronically-controlled single-unit pump engines, and electronically-controlled EGR engines. Among them, high-pressure common rail fuel injection technology is recognized as the most mature diesel III engine technology in the industry.
At present, many well-known commercial vehicle companies, including Dongfeng and Nanjing Iveco, use the high-pressure common rail EFI system. As the high-pressure common rail fuel injection technology is a mature technology in Europe, the domestic European joint venture commercial vehicle enterprises have mastered the technology earlier. For example, Nanjing Iveco has already launched the State III products to the Chinese market in 2004. After many years of road tests and user practices, both the oil adaptability and the stability of the vehicle have been fully recognized by the market. Its unique filtration self-detection alarm identification system can also effectively prevent the damage of unqualified oil products to the engine.
Since Beijing implemented the National III emission standards in 2005, sales of Iveco Lightbus in Beijing have continuously maintained an average increase of 30%.
Service is very popular
Because some commercial vehicle companies do not master the core technology of the National III engine, in order to deal with the national III emission standards, these companies have to temporarily upgrade the engine, or hastily launched the grafted State III engine, which not only lays the foundation for the long-term operation of the vehicle. The hidden dangers are even less able to achieve after-sales service matching.
After the full implementation of the National III emission standards, the after-sales service for commercial vehicle companies is also a test, including whether the State III accessories can be put in place in time, whether it is equipped with professional engine diagnostic equipment and whether the maintenance personnel have mastered the maintenance technology of the National III engine.
Relatively speaking, Nanjing Iveco, the first domestic product to launch the National III product, has obvious service advantages. According to reports, after the listing of the State III products in 2004, Nanjing Iveco equipped the national service system in batches with a professional engine diagnostic computer.
Nanjing Iveco has long maintained the engine technology advantages of the National III emission standards, and has performed well in terms of technical reliability, fuel economy, and maintenance services, making it a good choice for commercial light passengers.
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