fuel saving technology
Popularization of new energy needs time to tapping the potential of traditional passenger car industry, energy-saving technologies
Commercial Automotive News reporters Jin Ri and Huo Xi, the relevant department of the state’s “energy-saving and new energy vehicle technology policy” has begun to collect views on the draft. It is understood that the policy is mainly related to technical standards of traditional energy-saving vehicles, including electric cars, including new energy automotive technology standard. China Automotive Technology and Research Center consultant Zhang Shulin, said: “” policies “should give priority to the traditional energy-saving vehicles, the energy saving technology on the important position.” Zhang Xiaoyu, chairman of Society of Automotive Engineers of China said, not because it emphasizes the development of new energy vehicles, be neglected or given up on the traditional pursuit of automotive energy saving technology.
The bus industry is concerned, although the new energy bus has been running in some cities, but put into use to achieve high volume, but also a long time. Therefore, to achieve energy conservation of traditional buses, bus companies are still one of the primary consideration.
Bus pass new energy in the Works Minister Wang Cimpu said: “Our goal is to save a car 100 km 3 liters of oil. Specifically, the first lightweight body, each vehicle and materials to reach 300 to 500 kg, can cost about 2,000 yuan; second is to enhance the ability to match the power system to achieve the engine, transmission, axle, chassis technology optimization; third is the introduction of new technologies, such as engine thermal management technology, electronic fans, energy-saving air-conditioning, use of the engine The exhaust gas post-processing to provide winter heating, etc. warm inside. ”
Zhongtong LCK6120GT type bus is 12 meters wide by the end of rack bearing body, than the same model to reduce weight of 2.7 tons, can take 112 people, and by selecting the appropriate bus engine operating conditions, so that a vehicle light, large , provincial, and vehicle cost of traditional models quite.
Haig also focus on passenger cars with new technologies and new materials, reduction and conservation. Haig Bus Technology Center Product Manager Chen Jian that the development of new energy vehicles in the initial stage, yet do not see results, so now is an urgent need to tap the energy potential of conventional cars. Chen Jian, said: “In traditional bus, our goal is saving 3% to 5%. Before the car before the face of rapid changes in the market for consideration, using a glass fiber reinforced plastic, strictly speaking, a good glass of steel should be light However, due to price constraints and other factors, the actual use of steel instead of glass is also heavier. In this case, we car before and after the change plate stamping around, so not only reduces the weight of the product before and after Wai’s consistency also increased. ”
In the energy saving effect, the models are different not the same effect. Chen Jian said: “The large-scale passenger car fuel economy becomes more obvious, is to do more work for small passenger cars to reduce weight. For example, 8 m 9 m passenger bus and little difference with the assembly, rear axle to be 9 tons , front axle should be more than 3.5 tonnes, so the buses and minibuses on the combined weight is very close to this small passenger weight per meter of large passenger weight, weight loss is relatively difficult. ”
”Next, we need to optimize vehicle match, keep out of the new assembly products, we will continue to improve the optimization of matching vehicle assembly; the same time, further weight loss; the other is in the chassis, car body using new materials, such as aluminum rims, etc.; in addition, some structural improvements. “Chen Jian said.
As engine companies, vehicle Yuchai also actively to the work of energy saving to. Yuchai Engineering Research Institute, according to the technical engineer responsible for electrical control beam peak description: “For the engine body, we mainly through electronic control, high-pressure injection, supercharger, intake swirl optimal match to the original emission to a very low level, while making fuel economy to meet customer needs. there are a number of nitrogen oxides, particulate matter can not be eliminated through the engine body, we deal with adoption of clean technology. Ⅳ our country adopted the SCR technology route, after processing controller, that is, Yuchai developed, and currently the most use of Bosch, Delphi products. The reason why myself SCR, because of relatively high asking price of foreign brands, country to country Ⅲ Ⅳ increase the cost of more than 20,000 yuan, the user’s hard to accept . to master the technology, the price to drop more than 50%. ”
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