Commercial vehicle slimming into wind wave material, structure into a breakthrough point
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When many countries began to discuss whether to reduce the weight of commercial vehicles under the pressure of oil prices, domestic commercial vehicle companies have also started to move. Their goal is very clear: to make commercial vehicles lighter and lighter, the resulting fuel consumption is reduced and trucks can load more cargo.
Material innovation, design innovation, and structural innovation have become the most adopted methods for domestic commercial vehicle companies.
New materials are very popular
Recently, Yutong released a message saying that the first aluminum bus in China has been completed. This marks another step closer to the market for China's first new material bus.
According to an industry source, Yutong's all-aluminum buses will be painted and interior-mounted. After these preparations, it will enter the most critical road test stage. "Although there are effects of weight loss, detailed data cannot be provided at present," the source told the "Commercial Automotive News" reporter. "Although foreign countries have data on similar projects, these data cannot be applied to domestic projects. After all, domestic vehicle assembly conditions, road conditions and foreign countries are quite different. "The news from Yutong inside confirmed this statement.
Similar to the keen interest in new materials in the passenger car industry, truck companies have also shown strong interest in the application of new materials. “A lot of truck companies have already begun to try to use new materials for body parts.†Tan Xiuqing, an expert from the China Association of Automobile Manufacturers, told reporters, “For example, all-aluminum transmissions.†At the same time, many companies are trying to use high-strength steel plates. Instead of previous medium-strength steel plates, the same strength was achieved by using thinner steel plates. The application of these new materials has become or is about to become a weight loss for trucks.
Structure, process can also reduce weight
However, the weight reduction of commercial vehicles is not only a way of adopting new materials. The finite element analysis method commonly used by bus companies and the full load bearing technology are also one of the means.
“We have been working hard to make passenger cars lighter. For example, all models use full load bearing technology. This can effectively reduce the weight of the passenger car – passenger cars with full load bearing technology are a few hundred kilograms lighter than those with the same non-all inclusive passenger car.†Futian Automobile Europe V Coach General Manager Fan Wentang told the reporter, “We have invested 200 million yuan in funds to transform the production line and we expect it to be completed in the second half of the year.†Not only that, the Euro V bus will also start to exist. The models were redesigned and gradually brought to market.
Finite element analysis is also a commonly used weight reduction technology for bus companies. The technical personnel of Zhongtong Bus told reporters that in addition to adopting full load bearing technology, they also used CATIA software to analyze the models. Such an analysis can more rationally configure the weight of the vehicle so as to achieve weight reduction. Fan Wentang also confirmed to reporters that using finite element analysis combined with software testing and testing, non-full-load models can also reduce weight 200-300 kg.
Truck companies also have their own "great tricks" - to transform the process. Many truck companies, under the condition of ensuring the strength of the entire vehicle, changed the part of the previous welding process to the overall stamping or riveting, and reduced the weight of the vehicle through the innovation of processing methods.
View related topics: increase millions every year, analyze the production and sales of automobiles (commercial vehicles)
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