On October 1, 2015, China will implement the third-phase emission standards for non-road engines. The implementation of non-road country 3 emissions will bring a series of responses to the construction machinery and agricultural machinery industry. From the upgrading of the engine technology to the system matching of the entire vehicle, an upgrade tide will be ushered in. This is a severe test for OEMs and suppliers. It is also an opportunity. In response to emission upgrades, Yuchai released 10 diesel-powered engines that meet emission regulations in bulk for the first time in China. These 10 engines represent Yuchai's many different technical routes for non-road products, and also reflect Yuchai's outstanding advantages in electronic control technology, emission control and product design. Excellence and Leadership: Product Performance Increases Again In 2007, China announced the first national standard for emission control of off-road diesel engines. Among them, the Phase 1 standard came into effect in October of that year, and the Phase 2 standard was implemented in October 2009. In mid-May of this year, the Ministry of Environmental Protection and the State Bureau of Quality Supervision jointly announced the limits and measurement methods for exhaust pollutants of diesel engines used in non-road mobile machinery (China Stage 3 and 4). Among them, the Phase 3 standard came into effect on October 1 this year, and Phase 4 has yet to determine the effective date. Beijing, which is a pilot for emission control, began implementing Phase III emissions standards for non-road mobile machinery from July last year, with implementation dates far earlier than those in other parts of China. The third stage of the non-road diesel engine implementation means that the emission is upgraded again, and the technical requirements for the engine are higher. It is generally accepted in the industry that the emission regulations issued by China are equivalent to the SIIIA phase of the EU and the Tier3 control level of the United States, but are more stringent than the three-phase standard of the road diesel engine country in China. It is not possible for engine manufacturers to make simple improvements in the three engines used on the original roads, but to do more optimization. Emissions upgrades also mean an increase in costs. For users of non-road mobile machines that are sensitive to cost control, engines that are cheap and meet regulatory requirements are more popular. In order to enhance the competitiveness of its products, Yuchai's R&D team has optimized the design of the engine body and components, which has improved the quality of the product. In these 10 products, the YC4A-T3 fuel system uses the United States Sida Electronically controlled dispensing pump. This is one of the technical highlights of this engine. It was jointly developed by Yuchai and Stenai. The use of electronically controlled dispensing pumps enables the engine to better adapt to harsh operating conditions, high loads and variable engine operating conditions. In addition, they use a dedicated off-road fuel filtration system for each engine, which is more suitable for non-road environment and effectively protects the electronically controlled fuel system. The greater improvement is Yuchai's design of a new body for the engine. The cooling efficiency is increased by about 30%, and the temperature difference between oil and water is reduced by about 30%. This effectively solves the problem of high water temperature and high oil consumption. Improvements such as these, permeate every design detail. Liu Shiguo, a Yuchai Engineering Research Institute who participated in the YC4D-T3, said that even the fan design has been considered. The independent fan structure has more air volume, more quietness, and better reliability and adaptability. In order to reduce costs and better adapt to the market, Yuchai adopted electronically controlled monomer pump + booster intercooler + external EGR (exhaust gas recirculation). This technical route can achieve a balance between performance and price. The overall improvement of performance meets emission requirements, while the price is not too high and has great advantages. Take the YC6G-T3 as an example. Although it is equipped with a high-end, cutting-edge design, the price of the engine is much less than that of an ordinary mechanical pump used in the current market. The market is completely acceptable. The reduction in cost does not mean a reduction in performance. The product released this time increases the effective output power, and the fuel saving rate is 5% or more. The engine body can withstand a burst pressure of up to 180 bar, and is completely in line with the high-end heavy-duty engine in Europe. High; the torque reserve is up to 30% and the power is strong, which can guarantee normal operation under various mutation conditions. Intelligent: The Wide Application of Electronic Control Technology Intelligence is a trend in the development of engine products. Electronic control is an important way to achieve intelligent engine. As early as two decades ago in 1995, Yuchai undertook the “Ninth Five-Year Plan†research project of the State Science and Technology Commission, “Development of Electronically Controlled In-Line Pump-Pipe-Valve-Mouth (PPVI) Engineâ€, and opened Yuchai Diesel Engine. Electronic control technology leads the industry's peers. In 1999, Yuchai started the development of an electronically controlled high pressure common rail engine. In the same period, it started a dual fuel engine development project. The promotion of the three major projects injected necessary new technologies and new forces for the successful development of Yuchai's electronically controlled engines, and laid the foundation for Yuchai's electronically controlled engine technology leadership. In 2004, Yuchai’s heavy-duty electronically controlled engines were put into the Shenzhen bus market in small batches, and more than two years earlier than their counterparts, the electronically controlled engines were put into batches. Advanced electronic control technology reserves allow Yuchai to take the initiative in upgrading the non-road engine emissions. The development of the new engine announced by Yuchai is not only an upgrade to non-road country standard 3, green and environmental protection, but also upgraded and optimized the intelligent control. Currently mature GPS positioning functions, remote diagnosis, and electronic intelligent fuel-saving switches have been widely used. For non-road engine use conditions, Yuchai has also developed a starter relay control function, starting safety protection, to prevent the wrong start the engine, while extending the starter life; idle speed control function, the combination of parking idle speed, idle speed, organic combination, At the same time taking into account the fuel consumption and dynamic response; hand throttle control function, can provide different hand throttle position corresponding to different constant speed control; fuel inlet alarm function, fuel moisture content monitoring, exceeding the alarm, effectively protect the engine; fault flash code output function, Provide fault light code output failure, the driver can read the current engine fault information without a diagnostic tool, real-time engine fault information. In the area of ​​intelligence, high-temperature protection is commonly used to monitor the engine water temperature and intake air temperature in real time, and to protect and control the engine when it is overheated, to prevent the engine from being damaged due to excessive high temperatures. In addition, in order to facilitate the provision of financial leasing users, Yuchai's new products released this time provide CAN information sending and receiving functions, which can share part of the engine information, provide some auxiliary control functions for the whole vehicle, and provide remote control with the car networking remote terminal. This means that users who provide finance leases can remotely control their own vehicles and effectively protect their own rights and interests. Market-Oriented: R&D and Service Backing After the implementation of non-road country 3 emission standards, China's diesel engine industry will enter full-scale electronic control. Based on the experience of advanced technology precipitation and automotive leading emissions technologies, Yuchai has achieved many core advantages. Therefore, the upgrading of emissions will give Yuchai opportunities and market growth. In terms of research and development, Yuchai has the largest number of gantry benches in its domestic counterparts. The test power segment covers micro, light, medium, and heavy-duty engines, and has the ability to test engines of the State V, Euro VI, and Tier 3 at the same time. 16 special tests for more than 80 kinds of parts and components, and the testing ability has reached the industry leading level. In terms of services, Yuchai built a sound electronic control service guarantee system through the implementation of the vehicle's national 3rd and 4th national discharges. Currently, Yuchai owns 60 external mobile electronic service engineers with electric control service capabilities. More than 1600 service stations have formed a relatively comprehensive electronic control service security system and are fully capable of serving non-road country 3 products. In short, the upgrading of emissions is not just a change in the fuel system, but the nature of the entire engine has changed, redefining the engine product design, performance development, and product test verification. In the emission improvement process of the engine, we not only strictly control emissions, but also put forward requirements for product quality, performance, and reliability. With the application of electronic control systems, information and intelligent control technologies can be used on products. Chaifei Road Country 3 products will bring more value to customers. Guangzhou Jiluo Machinery Manufacturing Co.,Ltd , https://www.gzjiluo.com