Intelligent promotion, high efficiency and energy saving, creating a power future

China Consumer News·China Consumer Network Report As environmental protection receives more and more attention, fuel vehicle emissions are also facing challenges. More and more car companies are shifting their research and development focus to high-efficiency power technology and new energy technologies.

On November 15th, at the summit of the 2019 automobile power development trend with the theme of “Fire Engine and Inter-meeting”, many industry leaders, media experts and enterprise representatives conducted in-depth discussions on the future development trend of automobile power, and reviewed and deconstructed them. The beauty of the evolution of automotive power and technical highs.

The 2019 Automotive Power Development Trends Summit will discuss the future development trend of automotive power. Yiwu

The guests agreed that while developing new energy power, we should not give up the development of traditional power. Driven by comprehensive factors such as policy, market and technology, high-efficiency engine is the inevitable trend of internal combustion engine technology transformation and upgrading. It is an important development direction of automobile power at this stage, and also a key link for traditional automobile to transition to new energy vehicles.

New energy and energy-saving vehicles coexist

Since July 1, 2019, Beijing has begun to implement the national six b emission standard for heavy-duty fuel vehicles and public transport and sanitation heavy-duty diesel vehicles. The national six b emission standards for light-duty gasoline and heavy-duty diesel vehicles are from 2020. It will be implemented on the 1st of the month. Compared with the national five emission standards, the light vehicle country's six b emission standards have significantly tightened the pollutant discharge limit, nitrogen oxides (NOx) increased by 77%, particulate matter (PM) increased by 67%, and new particulate matter The limits of number (PN) and ammonia (NH3). Obviously, whether it is from the market trend or the policy trend, high-emission fuel vehicles are no longer suitable for this era. High-efficiency internal combustion engines and new energy power have become the vane of the times.

Regarding this issue, Wang Xin, editor-in-chief of the Ryukyu Group, said: "In the long run, new energy including pure electric power will become a general trend. However, the current market acceptance and use environment are gradually improving and improving. It takes time, pure electric power is difficult to fully meet the needs of the market and society in a short period of time. Therefore, in the choice and exploration of the vehicle's power path, it is necessary to recognize and reorganize."

However, under the influence of various external factors, China's auto industry still has different degrees of pursuit of new energy vehicles that do not pay attention to traditional power. This is not conducive to the development of China's auto technology industry, and even can be said to be China's auto technology and the world. The performance of car development technology is out of touch.

Cui Dongshu, secretary-general of the National Passenger Car Market Information Association, said: "Low-carbonization, informationization, and intelligence are very important trends, but it does not mean that they are completely turning to new energy vehicles. Energy-saving vehicles and new energy vehicles are the development of the entire automotive industry. The big trend, this is the characteristic of our entire industry development."

Traditional internal combustion engine

Shuai Shijin, a professor at Tsinghua University and deputy director of the Burning Energy Center of Tsinghua University, said: "The advantages of complementary internal combustion engine and electric motor are complementary and have strong vitality. Hybrid power is not a technical route for transition. It is a very popular technology route. There is no chance, but more opportunities.” “In the foreseeable future, internal combustion power is still the dominant power plant, and the combination of electric, network and intelligent and sharing technologies is an internal combustion power home. The car has a very bright future.” For the future of the internal combustion engine, Yao Chunde, a professor at Tianjin University and deputy director of the State Key Laboratory of Combustion Engines, also recognizes the dominant position of the internal combustion engine.

According to the analysis of Zhang Wenjuan, an analyst of IHSMarkit China's light vehicle power system, engine electrification is an inevitable trend, but car companies must consider the choice of their own products and technology routes. How to achieve compliance will become the core factor driving the entire technology upgrade in the future.

At the same time, Wei Anli, the former deputy secretary-general of the China Internal Combustion Engine Industry Association, affirmed that China's energy structure will not change in a short period of time, and pointed out the key to the future development of internal combustion engines. In Wei Anli's view, electric vehicles and high-efficiency traditional energy vehicles are the "two wheels" that reduce China's oil consumption, protect energy security, reduce environmental pollution, and implement energy-saving and emission-reduction development strategies.

The global automotive industry is facing the big issue of energy conservation and environmental protection. As the current new energy vehicle technology needs to be optimized and there is still a distance from fully meeting social needs, the traditional internal combustion engine still needs to fulfill its mission. At the same time, diversified market demand has made the future automotive power technology path have a broader space for exploration.

Develop efficient power

Wang Lixin, director of engine combustion and architecture technology at SAIC-GM's Pan-Asian Automotive Technology Center, said that from a regulatory point of view, higher requirements are placed on the fuel economy and emissions of the engine. From a customer perspective, Chinese customers are more sensitive to the performance, response and NVH performance of the powertrain. These are the fundamental drivers for SAIC GM to continuously research and upgrade high-efficiency engine technology. SAIC GM's eighth-generation Ecotec series engine is the inheritance and development of the Ecotec engine family. The displacement is 2.0T/1.3T/1.0T. Matching these engines is the new CVT and 9AT/ developed simultaneously. 10AT gearbox. Under the strict quality control system of SAIC, the eighth-generation Ecotec series engine can fully meet the national six B emission standards.

It is undeniable that the pressure faced by auto companies in the present is huge, but as companies continue to deepen their research and development of high-efficiency power, most OEMs have sufficient technical reserves for the current environment. Liu Guoqing, chief engineer of engine design at Geely Automobile Group, said: "Being driven by the market and regulations, Geely Automobile Group adopts a diversified drive technology layout, and uses hybrid power and traditional power as the fulcrum to deepen the electrification process. The 1.5T engine is the most representative product, which forms a golden power combination and forms a diversified platform based on high-efficiency boost technology."

According to Yao Chunde, there are many domestic self-owned brand three-cylinder engines, such as SAIC and Great Wall. From the current level, the three-cylinder engine can balance very good ride, power and economy. There are a lot of advanced technologies that can solve the problem of three-cylinder engine shake, so the three-cylinder engine and the four-cylinder engine basically have no difference in ride comfort. Special attention should be paid to the fuel economy of a three-cylinder engine. Even if the engine size of a four-cylinder engine is small, it is not necessarily comparable to a three-cylinder engine.

With the increasing pressure of energy conservation and emission reduction, major auto companies are investing heavily in the development of engine-compliant R&D, especially for small-displacement engines. Cui Dongshu believes that small displacement engines are an inevitable trend in technology development. With the advancement of technology, especially to increase the power, it is necessary to quantify small rows or single cylinders. In addition, due to the improvement of fuel-saving technology, the fuel consumption level of small rows is rapidly decreasing, and consumers can enjoy lower-cost travel convenience. This trend will play a good role in coordinating and promoting the normal use of vehicles and energy balance.

At present, the global automotive industry is facing tremendous changes, among which energy conservation and emission reduction are the most important. Yao Chunde believes that if you look at it from the perspective of consumers, the most demanding is fuel economy. The economics, driving, smoothness, NVH, etc. of a car are their concerns. Whether it is a three-cylinder design or a four-cylinder design, whether it is a hybrid system or a single pure-fuel engine, consumers do not necessarily care, they only care about the transformation of the performance system. Therefore, professional institutions and media are required to guide consumers from a scientific perspective, so that people realize that this is a more realistic choice, a more scientific choice, and a more reasonable choice.

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