Electric Distribution Pump System Light Commercial Vehicle IV emission feasible solution

"In the light commercial vehicle Guo four fuel injection system, high-pressure common rail is the direction of technology development, but our company's electronic distribution pump system more adaptable to oil, fully able to meet the national emission standards." Nanjing Granville Fu Jinning Co., Ltd. (hereinafter referred to Weifu Jinning), general manager Zhang told reporters.

Low profile set up industry visibility

From July 1 this year, China's official implementation of the four emission standards for heavy vehicles, light vehicles, four emission standards will also be implemented next year. There are many controversies in the industry regarding the implementation and preparation of State IV and the lack of supporting facilities. It is precisely for this reason that the China Automotive Journalist Association organizes media including the newspaper to conduct grassroots research activities on the preparations for the implementation of "Guodian 4 Industrial Preparations," so as to understand the supporting facilities in the field. Weifu Jinning is the second leg of the event.

In the engine, the impact of emissions is the fuel injection system, the importance of self-evident. Weifu Jinning production of fuel injection system, is one of the representatives.

Weifu Jinning is a company that designs, manufactures and sells internal combustion engine fuel injection devices co-invested by Wuxi Weifu High-Tech Stock Co., Ltd. and Nanjing Xinong Investment Group Co., Ltd. It has decades of experience in the design, development and manufacture of fuel injection systems , And grasps the industrialization technology of fuel injection system. It is the professional R & D and mass production VE type distribution pump and the only professional R & D and production electric fuel distribution pump fuel system in China. It is mainly used in light diesel engines.

In recent years, Weifu Jinning through the introduction of Bosch VE pump technology licensing and production certification, product development, quality control and technological level greatly improved. In 2005, the company, together with universities and research institutes, jointly developed an electronically controlled VE system to meet the national emission regulations. In 2009, after the state implemented the three laws and regulations, it began mass market. Weifu Jinning independent research and development of electronic control VE pump due to stable performance, reliable quality, quickly open the market, the current market holdings have exceeded 600,000 sets. Lu Yewu, deputy chief engineer of Weifu Jinning, said the major customers of the company are well-known domestic manufacturers such as Jiangling, Qingling, Futian, JAC, Cummins, Dongfeng Qingfa, Zhengzhou Nissan and FAW General Motors, and exported to South America, Middle East Other countries.

Independent research and development laid the core strengths

Independent research and development is the foundation that Weifu Jinning can stand on the market. In the second country, the engine can also control the amount of fuel injection and injection time through mechanical injectors to meet the standards. With the emission upgrade to the country three, four, the precise injection of fuel on the need for electronic control, that is, through the ECU control. But ECU needs a lot of data to support, and few domestic enterprises can invest a lot of money and manpower to do this accumulation. Weifu Jinning through a decade of time, do a lot of calibration tests, has accumulated thousands of MAP map, in order to achieve precise control of fuel injection system. According to Weifu Jinning introduction, the only large-scale industrialization of its own brand only Weifu Jinning one. "Weifu Jinning calibration technology, but also to absorb and learn from some good practices of multinational corporations, formed our own set of systems and standards." Lu Yewu told reporters.

With the increasing pressure of environmental pollution, emission upgrading is imperative. Weifu Jinning closely follow the industry trend, from 2009 to develop the country's four electric distribution pump fuel system, research and development funds up to 100 million yuan.

Luyewu said electric distribution pump fuel system is characterized by the pump which has oil pressure chamber, and integrated electronic fuel actuator, electronic control valve and high-speed electronic control unit as a whole, making it a high degree of integration of mechanical and electrical integration The products are electronically controlled by ECU to control the fuel injection quantity and fuel injection time and realize the high-pressure, regular, quantitative and closed-loop control of fuel injection to meet the requirements of the national emission regulations.

It is understood that Weifu Jin Ningguo three electric VE pump ECU size is very small, after the upgrade to the country IV ECU function has been increased, from 36 pins suddenly expanded to 121 pins. Weifu Jin Ningguo three OBD has 14 failure modes, there are 48 after the fourth failure mode. Harness, the country's three harnesses is 26 lines, the country has four lines of wire harness 63, the sensor is the third country 9, the fourth four are 17, and Weifu Jinning States four electronically controlled dispensing pump injection pressure than the country Three raised a lot.

At present, Weifu Jinning electric distribution pump fuel system has been formally recognized by the relevant state departments, as light commercial vehicles to achieve the four practical programs.

Everything is ready to take the wind and waves

Zhang Zhenting said Weifu Jinning electronic distribution pump has many advantages. First of all, is the system's inheritance. The engine does not need to have a big change, previously can be equipped with electric VE pump, and now can also be equipped with four electronic control distribution pump, thus greatly eliminating the engine redesign time.

Weifu Jinning electronic distribution pump on the adaptability of the oil is better. Compared with other systems, good adaptability to fuel impurities. In the maintenance, some fuel systems need to be constantly replaced, regular replacement of diesel filters, Weifu Jinning to 20,000 kilometers or 30,000 kilometers only need to be replaced, greatly reducing maintenance costs. "Electronic distribution pump with closed-loop control, can accurately control the fuel injection and injection time during the life of the vehicle to ensure consistency of power performance." Zhang Ting told reporters.

It is reported that Weifu Jinning State four projects currently with more than 10 business cooperation, a total of more than 30 models. At the same time the company is still developing with the potential of the country five, jet pressure 1600 ~ 1800bar electronic control system.

"Weifu Jinning's electric distribution pump has been implemented in a small number of manufacturers in the supply of small quantities. With the implementation of the four emission laws and regulations, we have done all the preparations for the country four. The company's more than 250 after-sales service Station, more than 20 dealers are also ready to provide users with good service. "Zhang Zhen Ting said.