Power tilt, yu Jian male core!  With the new development of 15L national six heavy engine of Cummins on the global market, China’s heavy truck industry power 600+ era tide more surging.  In addition to the maximum horsepower of 680ps, thermal efficiency of 48%, maximum torque of 3200Nm and so on, a series of mechanical performance of the data is amazing, the technical advantages of this series of engines, application scenarios are more attention.

China’s highway construction drives the continuous speed of logistics and transportation, but also greatly promotes the continuous upgrading of heavy truck power.  Early this century, the introduction of international technology development of the new heavy truck matching 290 horsepower engine has been the “king” style.  Only after more than ten years, transport equipment power matching is spans 300 +, 400 |, 500 +, into the era of 600 +.  So, for the transportation industry, is bigger really better?  Is the horsepower a marketing gimmick or just needed?

Cummins (China), chief technology officer jung feng, cummins engine (China) group chief engineer doors tao, and components for cummins (China) group chief engineer Cai Songli three experts such as card friends high-horsepower engines in some doubt and confused, for cummins 6 15 countries l engine design development and technological innovation into the first professional interpretation.

Guo Tao Suo, Chief Engineer of Engine Division of Cummins (China), Jun Feng Sai, CHIEF Technology Officer of Cummins (China), and Songli CAI, Chief Engineer of Components Division of Cummins (China) (left to right)

Engines rely on fuel for work, and increasing thermal efficiency is clearly the key to generating more power and higher economy in the process of converting heat into mechanical energy.  In fact, cummins engine thermal efficiency has also reached new highs in the application of innovative technologies.

“In 2012, cummins engine thermal efficiency reached 51.2% in the U.S. Supertruck program;  In the latest generation supertruck project, cummins engine thermal efficiency reaches 55%.  During this period, cummins products achieved thermal efficiency of 48-50% in the Chinese market.”  Cummins (China), chief technology officer of 15 l is handsome peak production cummins engine choice 48% thermal efficiency is emphatically explained, according to the Chinese market more focus on costs, emissions requirements is different, and the actual situation of different application scenarios, the collection research and development team in reference on the basis of past experience advantage resources, custom make suitable products for Chinese market.

“With the current technology, 48% engines are more economical than 55% and 50% engines, and this is one of the philosophies that cummins 15L engines are developed to create value for the customer.”  Suo Guotao, chief engineer of Cummins (China) Engine Division, added and introduced that under the condition that the weight of cummins 15L engine is 150-200kg lighter than the same level of high-horsepower engine, the acceleration capacity of Cummins 15L engine is increased by 16%.  Fuel savings of 5%-10% over mainstream high-horsepower engines in typical operating conditions demonstrate superior performance and quality.

To validate cummins 15 l in different parts of China, the actual performance of different operating conditions, from the transport sector clients respectively, xinxiang, henan, yunnan kunming from Shanghai to chengdu, sichuan province, carries on the real car, live test, the results of three 15 l the six vehicles equipped with cummins engine tractor (6 x 4) under the load distribution, working condition of cast light express all have outstanding performance,  No matter transportation efficiency, or economy, compared with the same level of power vehicles have obvious advantages.

At a time when efficient logistics has become the mainstream operation mode of the industry, there are still a large number of customers who believe that 300+ horsepower or 400+ horsepower engine vehicles can also be capable of transporting 500+ horsepower engine vehicles, and earn the same freight.  Is that really the case?

“If only on the plain highway, the advantages of the high-horsepower engine, including 13L power and 15L power performance difference is not very obvious, once the vehicle enters the comprehensive road conditions, mountains, hills, plains, 15L power can play a greater potential, speed, economy, reliability and other advantages will be more obvious.”  Suo guotao also pointed out that in the sixth stage, high-horsepower engines will not only ensure efficient driving, but also ensure normal post-processing through a series of technical applications.  ”With the conservation of energy, high-horsepower engines can be more flexible and efficient.”

The 660-horsepower 6 X 4 with cummins 15L Engine proved this.  The measured road conditions of the kunming to Chengdu express carried out by Blackbird Logistics have significant elevation differences. 42% of the 865km one-way route have a slope > 1.4%, 20% have a slope > 2.92%, and the lowest altitude is 485m (Chengdu) and the highest altitude is 2500m (Huize).  The actual driving of the vehicle is not only greatly improved timeliness, but also excellent economy.

Obviously, the excellent performance of the high-horsepower engine plays a decisive role in further improving the long-distance transportation efficiency under comprehensive conditions.

“Cummins’ latest (15L) engine is future-oriented and efficient. It is not a single platform, but a combination of innovative technologies that have been developed in the past.”  According to Mr. Sai, cummins 15L engine is the innovation result of deep cooperation between wuhan team and North America team, as well as the participation of other cummins r&d institutes in Europe and around the world.  ”This engine is not very related to the North American X15 engine, although the engine displacement is similar, but the technology is not the same.”

Cummins 15L national VI engine aftertreatment system adopts modular design and has DPF active regeneration capability, which maximizes the occurrence of torque limit caused by the blockage of the aftertreatment system, or the occurrence of station cleaning.  CAI Songli, chief engineer of Parts and Components Division of Cummins (China), said that the performance and quality improvement of Cummins products benefits from continuous strengthening of scientific research and development, and the advantages of national six products are concrete embodiment of technological innovation.  ”Our philosophy is to develop in China, design in China, make in China and finally apply the technology internationally.  Moreover, not only in the diesel engine, Cummins in natural gas, new energy and other fields of power solutions technology innovation.

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