After a six-month grace period, the Auto III emission standard was fully implemented from July 1. People's eyes also turn to who can provide better focus on the product of the State III. Although the domestic III products of commercial vehicle companies in China have different technical routes and performance characteristics, for users, the economical, reliable, and maintenance services of State III commercial vehicles are the only ones that have chosen State III commercial vehicles. "Instinct."
"Instinct" One: Fuel Saving
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 purchased by them have experienced problems in upgrading emission standards and fuel consumption. In the context of the "rising sound" of oil prices, the phenomenon of "emission reduction is not energy-efficient" caused a lot of complaints.
“This problem is mainly caused by the solution of some enterprises' State III solutions. It only focuses on the rapid upgrading of emission standards. However, due to the limitation of technical capabilities, it has to sacrifice the fuel consumption and other performance of the engine.†Secretary-General, China Light Vehicle United Analysis Association Lin Wei told reporters. According to reports, 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 of the fuel supply quantity and the intake air quantity more accurate, and the combustion of the oil product is more complete, thereby realizing energy saving and reduction. The unity of the row. This means that the advanced performance and matching of the EFI system determines the overall performance of the State III engine.
Taking Nanjing Iveco light passengers using Sophie III engines as an example, since the engine itself was introduced from Italy as a whole and the advanced German Bosch high-pressure common rail system was adopted, the matching was good and the fuel consumption was reduced by 10% compared to Sofim II engines. %about.
The reporter took an account, the same quality of the diesel vehicle itself is 20% more fuel-efficient than gasoline vehicles, Iveco's diesel III products are about 10% less fuel than similar diesel models, so that using Iveco III products is quite It saved nearly 30% of fuel consumption costs.
"Instinct" II: 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. Nanjing Iveco had already launched State III products as early as 2004. After many years of road experiments 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%. "Iveco's car is very strong. Our country bought a National III car from the previous year as a shuttle bus. The average mileage per year exceeded 100,000 kilometers. The power system has never failed." Chen, a driver at a Beijing unit, told reporters.
"Instinct" Three: Services
Lin Wei, Secretary-General of the China Light Vehicle Joint Analysis Association, told the reporter that after the full implementation of the National III emission standards, the after-sales service for commercial vehicle companies is also a test, including whether National III parts can be put in place in time and whether it is equipped with professional engine diagnostic equipment and Whether maintenance and personnel have mastered the maintenance technology of the National III engine. “The State III engine adopts EFI technology, and the requirements for diagnostic equipment and personnel skills have been improved. Many companies have a very short time to market for the State III engines and it is difficult to diagnose equipment and personnel skills.â€
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. "Because Iveco III products are available soon and have a large amount of inventory, our after-sales system has mature service and maintenance experience to ensure that our customers can receive professional services in the first place," said Shuai Guowang, vice-minister of Nanjing Iveco's after-sales service department.
View related topics: State III standard commercial vehicle companies usher in new challenges