Yaxing Costed Bus's best fuel-efficient combination formula exposure
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On January 26, Yaxing Bus, in cooperation with Yangchai and Nan Weike, based on the theoretical calculations and experiments of the three-party technical team in the first four months, made the best fuel-saving combination formula of Koest, namely, Yangchao 4102 high horsepower. The engine YZ4DA7-30 matches the most fuel-efficient 6m Coster bus, this configuration combination will be used as the main push program to the customer.
COSTAR Cooperate Star (short for Cooperative Star) is a medium-to-low-cost, cost-effective combination of Yangzhou Yaxing Bus Co., Ltd., Weichai Power Yangzhou Diesel Engine Co., Ltd. and Nanjing Iveco Automotive Co., Ltd. bus. The product has two lengths of 6m and 7m. Each length is divided into practical, standard, and VIP configurations according to user needs.
Yaxing Bus, Yangchai Power, and Nan Weike's three companies responded to the call for energy-saving and emission reduction comprehensively, with the aim of building a harmonious well-to-do society and improving the safety of county and township people for travel, making full use of Yaxing Automobile Group, Weichai Power, and SAIC Group. Accumulation of professional technical experience in the automotive industry chain, integrated into the world's leading production, manufacturing, quality and cost control methods to operate systems. Under this mode of operation, production costs are greatly reduced, and the industrial chain is formed. The company promises to provide the society with a “zero†profit; and takes the lead in the passenger car industry to carry out the three-period period of the vehicle and the annual period of use. Two free medical check-ups keep the vehicle in top working condition.
It has been eight months since the announcement of the announcement made by the Koster Bus to the Ministry of Industry and Information Technology that the technicians of Yaxing, South Vicco and Yangchai have not ceased to provide high market for the county and city markets. Cost-effective, low-emission, low fuel consumption products and tireless efforts. The chassis had tried to use the JAC chassis, and the engine had also adopted domestic multi-brand and multi-style engines, and eventually the best match was implemented on the South Vickers chassis and the Yangchai engine. In terms of engines, technical personnel successively performed four displacement engines such as Yangchai's YZ4DC (485 series, 2.09L displacement), YZ4DE (495 series, 2.98L displacement), and YZ4DA (4102 series, 3.66L displacement). Comparing the tests and comparing the theoretical calculation of the fuel injection device type, the injection pressure size and the type of injection timing device for each engine with the actual loading test, the 6m COAST bus was finally found to have an in-line pump and built-in EGR system. At 1200Bar injection pressure, the theoretical and actual fuel consumption of the mechanical timing device YZ4DA7-30 reached the lowest level. At a speed of 110km/h, the fuel consumption per 100 km is about 10.7L. The matching of the engine's drive train is: φ330 membrane spring clutch with booster, TC5-35 transmission, 6.50R16 radial tire. Under the above conditions, the chassis system is equipped with power steering, and the front axle has a stabilizer bar, ie a 6m Keist standard and VIP chassis configuration. The actual experimental data subvert the misconception that large-scale horsepower that has been rooted in people's minds for many years is not fuel-efficient.
From the technical design point of view, the YZ4DA7-30 engine fuel economy is a theoretical basis. First, the engine is a typical high-torque, low-speed engine; secondly, the speed of the economy coincides with the speed of the engine's external characteristic curve; Third, large displacement, high torque, and high speed. The starting time of 0-90km/h is 10% faster than that of similar engines. Fourth, the TC5-35 transmission, main reduction ratio and radial tire also form the best combination.
In view of the introduction of fuel-efficient Coster "gold partner" program with typical significance for energy conservation, Yaxing, Nan Weike and Yang Chai will plan coordinated supporting manufacturers in the original configuration of the practical as possible to control costs. The total cost of boosting power, increasing clutches and air-assisted steering mechanisms, increasing transmissions, increasing power steering, and upgrading to high-speed steel radial tires will be controlled at about 5,500 yuan. The increase in the above configuration is about 1,000 yuan lower than similar products. The cost reduction will benefit customers and make substantial contributions to energy conservation and emission reduction and the construction of a harmonious society.
In addition, Yangchai's engines also make in-depth research on the user's use cost. The cost of maintenance and repair of the engine during the entire vehicle life cycle is only about one-third of that of the similar country III products, and the fuel consumption is reduced by more than 15%.
" Yastar Coste ", which is a combination of "low price, low fuel consumption, low emission, low use cost" and "low", is an ambassador for a well-off society and an ambassador for harmonious transportation.