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The 2008 China (Suzhou) International Bus Exhibition (hereinafter referred to as the Bus Show) and the 2008 China Bus Rapid Transit Technical Equipment Exhibition sponsored by the Ministry of Construction Science and Technology Committee, the Urban Vehicles Expert Committee and other related government departments, industry associations and enterprises in Suzhou International Expo Center was grandly held. The theme of this year's bus exhibition is “Green Power, Green Bus, and Green Transportationâ€. It not only showcases the latest of more than 20 mainstream domestic bus manufacturers such as Suzhou Jinlong, Xiamen Jinlv, Yangzhou Yaxing, Zhongda, and Ankai. Products, but also attracted more than 80 domestic and foreign mainstream bus component suppliers exhibitors. Among them, environmental protection, safety and comfortable components have become three major aspects.
Domestic engine up to standard III country IV
The implementation of the national implementation standard for commercial vehicle country III emission standards is just around the corner, and Beijing will take the lead in implementing the national IV emission standards for public transport, sanitation and postal vehicles carrying heavy-duty diesel engines or natural gas engines ahead of schedule on July 1 of this year. Equivalent to Euro III) or above emission standards has become the entry permit for the engine exhibition for this year's Bus Show. The major domestic diesel engine manufacturers, including Cummins, Yuchai, Weichai, Shangchai, FAW Xichai, and Shanghai Hino Engine, all exhibited their green power of “reaching III into IVâ€.
Cummins has exhibited five engines, including one natural gas engine, an ISM-type fully electronically controlled heavy-duty diesel engine to be put into production in Xi'an Cummins, and is expected to produce Cummins' world's first light-duty diesel engine in Beijing next year, as well as the other two Euro IV diesel engines. . Because the emission aftertreatment system required by Cummins Euro IV diesel engine is about to achieve localized production, its products have attracted much attention in the industry.
FAW Xichai exhibited its six major series covering 65 horsepower, 460 horsepower, and a number of models with emission levels above III. According to the person in charge of the FAW Xichai Sales Co., the F and L series of natural gas engines on display met the national IV emission standards. At the same time, FAW Xichai adopted a multi-platform strategy in the development of the National IV diesel engine, ie high pressure common rail + selection SCR and EGR are developed simultaneously and will be launched to the market in June this year. The National V engine is also expected to be launched on the market early next year.
In addition to energy-saving and environmentally friendly engines, Beijing Jiajie Boda Automobile Energy Saving Technology Co., Ltd. has also demonstrated its hydraulic hybrid technology through a passenger car prototype. According to Mao Jingping, the marketing director of Jiajie Boda, the hydraulic hybrid technology is to install a set of hydraulic brake energy regeneration devices consisting of hydraulic motors, low-pressure accumulators and high-pressure accumulators on the existing passenger car. When the vehicle decelerates or brakes, the wheel drives the hydraulic motor to rotate under inertia, and the hydraulic oil is pumped from the low pressure accumulator into the high pressure accumulator, which converts the kinetic energy into pressure energy. Thereafter, when the vehicle starts or accelerates, the pressure in the high-pressure accumulator can be released, driving the hydraulic motor to drive the vehicle forward, greatly reducing the wasted kinetic energy and excessive wear on the brake pads of the vehicle during deceleration or braking. Save fuel consumption and delay the life of brake pads and brakes.
Local company eddy current retarder dominating
As an auxiliary brake device, the retarder is able to effectively shorten the braking distance and reduce the wear of the brake pads. Therefore, it has attracted great attention from commercial vehicle manufacturers. The relevant regulations and industry standards also clearly require that some passenger car models must be installed forcefully or slowly. Speeder. At present, retarders are mainly divided into two categories: hydraulic retarders and eddy current retarders. Among them, the eddy-current retarder has attracted a large number of domestic auto parts companies to “follow the trend†because of its relatively simple principle and manufacturing process, high unit price, and good application prospects. According to incomplete statistics, there are currently more than 20 companies that have manufactured eddy current retarder products in China.
At the same time, this year's Bus Show has brought together such companies as Tellab (France Telma), Shenzhen Teljia, Jiangxi Wanbang Vehicle Control System Co., Ltd., Yangzhou Hongquan, Huai'an Huimin, Ruili Group, Changzhou Changwu Power Machinery Co., Ltd. The company and Guangzhou Jingbo (Guangzhou Lean) and other nearly 10 home appliance eddy current retarder companies, also makes this product become one of the bulk products of this exhibition. Among them, Shenzhen Tejia is the first listed company in China's vehicle retarder industry. This bus exhibition is also the first of its kind to be unveiled at the domestic large-scale exhibition since its official listing on the Shenzhen Stock Exchange on February 1 this year.
According to Sun Bo, deputy general manager of Wanbang Company, the company is a new company that was established in the middle of last year following the transfer of the original assets of eddy current retarder technology and equipment from Wanan Group. Although the company was established more than half a year ago, due to the better technical and market foundations accumulated by Wanan Group in the early stage of the project, the company started very smoothly and it is expected to achieve 8,000 sales this year and strive to rank among the top three in the domestic industry.
In addition, compared with the existing drum brakes, pneumatic disc brakes with better overall performance are also one of the hot technologies in the bus industry in recent years. At this year's Bus Show, with the exception of WABCO, local companies such as Wuhan Yuanfeng, Wanan Group, Jiangsu Hengli, Ningbo Heli and Zhejiang Longzhong have all made disc brakes products or samples. , Basically all in the field. It can be seen that the battle for a discarded air-pressure disc brake market will be difficult to avoid.
Multinational giant automatic transmission strong attack
Needless to say, compared with the manual transmission, the automatic transmission greatly reduces the driver's labor intensity due to frequent shifts, and at the same time ensures that the driver concentrates more on driving and improves driving safety. In addition, a smooth shifting automatic transmission can also significantly increase the ride comfort of the vehicle, which is more important for passengers standing on the bus. Therefore, whether or not an automatic transmission is equipped is often regarded as one of the criteria for whether the vehicle is "upscale." Unfortunately, no domestic enterprises have yet achieved mass production of automatic transmissions for commercial vehicles. The product is still totally dependent on imports, and this has led to the international war of automatic transmissions for commercial vehicles spreading to the country. In this regard, the trilateral confrontation of the three major companies from Voith (Germany), ZF (Germany) and Allison (USA) can also be seen.
Allison, who has owned 50 years of automatic transmission production history, has benefited from entering the Chinese market. It still retains the title of the champion of China's commercial vehicle automatic transmission market. According to Chen Jing, sales manager of Allison China, as of now, Allison owns 26,000 vehicles in China's highways and non-road markets, and has used Allison transmissions on buses in more than 30 cities. Among them, there are more than 10,000 units in Beijing alone.
Compared with the traditional metal spring suspension, the air suspension is like installing a "Simmons" to the car, thereby greatly improving the ride comfort of the vehicle. In recent years, with the "upgrades" of domestic passenger cars, some high-end passenger cars have gradually appeared to replace metal spiral springs or leaf springs with "big airbags." Apart from the display of air suspension products by two multinational corporations Voith and ZF, this year's Bus Show also saw the emergence of two local companies, Shanghai Kerman Vehicle Component Systems Co., Ltd. and Beijing Jingde Precision Chassis Systems Co., Ltd.
Shanghai Coman, founded in late 2001, is one of the early companies engaged in R&D and production of commercial vehicle air suspension products. Now it has formed 7 series and more than 90 types of air suspension products, and its market share ranks the top in China. According to Sun Yihua, sales director of Shanghai Koman, last year, the company sold 5,000 air suspensions and plans to achieve 8000 this year. At the same time, the independent air suspension that Shanghai Koman took the lead in putting into production last year was an independent innovation product of the company, which broke the monopoly of the foreign giants on the product and was welcomed by domestic passenger car companies.