Xi'an Cummins's "Wisdom Man" engine interprets green fuel-efficient environmental protection
In recent years, the rapid development of social economy, the increasingly prominent issue of environmental resources has increasingly attracted people's attention and thinking, along with the concept of energy saving and environmental protection more and more deeply rooted in the people. In 2013, the State issued a number of energy-saving and emission-reduction policies, vigorously promoted various energy-saving and emission-reduction schemes, and again reduced energy-savings as a key project of the people's livelihood project at the site of the Twelfth National People's Congress. As an engine company, fuel-efficient and environmentally friendly As the strongest voice in response to the call, Xi'an Cummins has developed its own engine fueled by the Jizz human in the context of a large era that stands out among many fuel-efficient and environmentally friendly engines.
Surrounded by this fuel-efficient model of the engine, the China Truck Network interviewed Liu Zhili, Chief Engineer of Xi'an Cummins Co., Ltd., and discussed with Mr. Liu the contribution made by Xi'an Cummins to the fuel saving and emission reduction. Work hard.
Xi’an Cummins Co., Ltd. Chief Engineer Liu Zhili
Saving fuel not only for engines but also for system matching
It is understood that the JIT human fuel-efficient engine was developed specifically for the Chinese market. Cummins China Engineering collaborated with Cummins global technology resources to develop the “witness person†system, focusing on reducing the fuel consumption of vehicles that match Cummins engines. In line with the fuel-saving philosophy advocated by Xi'an Cummins, it is also a further innovation and optimization based on the previous technological achievements, and it contributes to energy-saving and emission reduction through fuel-saving.
General Liu mentioned that regarding fuel economy, the engine industry has always focused on the engine itself: optimizing the engine design as much as possible to improve its thermal efficiency and mechanical efficiency, and reduce the engine's fuel consumption. Xi'an Cummins realized that fuel economy is a systematic project, and the engine's own technological improvement is only one of the links. To achieve maximum fuel savings, matching optimization of engines, transmissions, axles, and drivers is required, so Xi'an Cummins While pursuing constant innovation in engine technology, OEMs also strive to innovate technologies that work in synergy with the key components of the vehicle to achieve a perfect match between machines, vehicles and personnel, and to maximize the efficiency of energy use.
Xi'an Cummins Engine Co., Ltd. began its in-depth cooperation with vehicle manufacturers in its research and development. Through continuous tests, it has been brought into line with gearboxes, axles, and other parts to optimize the design to achieve the best match. The data was fed back to the United States for test certification again, and the actual engine test was conducted again through the certified engine. The driver's operating habits were combined with repeated authentication and data collection, and a series of data and experiments were used to finally develop the Joshi Human-Operated Engine.
Wisdom human fuel economy engine: Implement terminal experience first
The term “fuel saving†is a conceptual term that can be regarded as a perfect interpretation only when it is actually implemented on the end-customer. The engine of fuel-saving of the Wise Man is to deepen its development on the subject of fuel economy.
Liu told China Truck Network reporter that Xi’an Cummins’ “witness†energy-saving system designed for different road conditions and vehicle carrying capacity is an important result of multi-party cooperation. In order to communicate this smart energy-saving system to end users more intuitively, Xi'an Cummins, through close cooperation with the vehicle manufacturer, provided the driver with a simple and easy three-speed selection on the control panel of the cab, focusing on the driver's The actual experience, the driver can be based on high speed, plain or hills and other different road conditions, as well as full load, standard load and no-load load and other different conditions, flexible choice of "witness" switch three gear, power gear (Power), standard file (Balance), or Economy, to ensure that the engine can always operate under optimal fuel conditions.
This new gear system ensures smooth acceleration, intelligently assists the driver in shifting gears at a reasonable speed, and avoids the dangerous behavior of speeding by the maximum speed limit, guiding the driver to develop good driving habits, and making the driving of heavy trucks easy. . When the user is driving, just tap the "witness" intelligent fuel saving switch to realize the dialogue and interaction between the "driver" and the "engine". The "witness" will help the user to master the best fuel consumption regardless of the user's pull. The goods are unloaded, heavy, and standard. Simply press the “wisdom†fuel saving switch to maximize the efficiency of energy use. The experimental results show that the same driver uses the “wisdom†fuel saving switch before and after The difference in fuel consumption is 3% to 7%.
Mr. Liu also mentioned that Xi’an Cummins Engine “Jizhi†fuel-saving switch is different from other similar energy-saving switches on the market. Cummins has used its engine's extensive electronic control functions to perform comprehensive optimization based on its requirements for fuel consumption and power matching in each car's working range, thereby realizing optimum optimization of power performance and fuel economy. . (Simply put, the wit system based on the actual road and vehicle load conditions, and through the accelerator pedal to perceive the driver's expectations of power, so as to find the best fuel-saving point. Instead of simply passing through the loss like other fuel-saving switch The motivation to achieve fuel economy is achieved, and the "wisdom man" switch achieves a dynamic balance of the entire vehicle's dynamic and economical conditions. Because each user, each vehicle, and each segment of the road are different, only The dynamic balance can adapt to any different working conditions, instead of limiting the working conditions of only one experiment, while other fuel-saving switches on the market can only achieve the static balance under a certain working condition.
Xi'an Cummins: National IV Engine Advantages Big Fuel Saver Environmental Protection Has Never Stopped
Xi'an Cummins, as the only ISM heavy-duty vehicle engine production base outside Cummins in North America, always takes the lead in bringing the most advanced international technologies to China. While advocating energy-saving and emission-reduction, Xi'an Cummins continuously develops innovative green products and technologies, and always commits itself to fuel-efficient, economical, and motivated customers, and adheres to the 360-degree green environmental protection business.
According to Liu, in addition to the "witness" switch, Xi'an Cummins continued to carry out technical improvements in the engine body, including smart fan, which uses electronically controlled fan device, the fan speed is automatically controlled according to the environment and water temperature, effectively reducing engine consumption The power, while improving the engine thermal efficiency, so as to achieve the purpose of saving fuel; according to different application conditions, optimizing the combustion system to make it the best economy; reduce frictional power consumption, innovative piston ring new design and new coating technology, Piston Skirt Part of the line design and coating technology, new design of the bearing and new coating technology, through the system of engineering, reduce fuel consumption from all aspects.
When the reporter asked about the forthcoming national IV emission standard to be implemented on July 1, 2013, and when the Xi'an Cummins engine is ready for battle, Liu always has confidence: Cummins is a high-tech enterprise led by technology and has been leading the field of internal combustion engines. Engine technology innovation. As early as the beginning of 2008, Cummins has completed the development of the National IV engine . It is the first domestically produced Euro IV heavy-duty diesel engine that has passed the European emission certification, and has the technical ability to easily upgrade the Euro V. In June 2009, it matched the Shaanqi heavy truck to take the lead in the country. Batch listing, at the moment, has also achieved volume export of the ISM Euro V engine. Therefore, Xikang has already completed the preparations for the National IV engine, waiting for the implementation of the regulations on July 1 and actively making contributions to China's environmental protection cause.
It is understood that the Xi'an Cummins IV engine is based on the ISM III engine, upgrades the engine control system, adopts Cummins' latest upgrade control software, and the matched ECU hardware is upgraded at the same time, optimizing the engine combustion system and reducing the PM also improves fuel economy. Cummins' mature SCR technology is used to reduce the NOx value to the scope of regulations. The unique urea injection system optimizes urea atomization and solves the problem of urea crystallization under some special conditions. Matching Cummins's unique four-step control supercharger, it has low torque, low fuel consumption, and high transient response. It also takes into account the high-speed plateau adaptability of the engine and is a more fuel-efficient and environmentally friendly product.
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