In this paper, we take a truck as the platform, studying on the leaf springs through the finite element analysis and mechanical properties performance test; meanwhile, we do the dynamics simulation test to show the performance of the heavy vehicles' balance suspension.

In addition, with increasing competition of heavy duty vehicle market, how to shorten the product development cycle, to improve design efficiency and to lower costs, to improve the market competitiveness of products, and has become a key to success of enterprises.

另外，随着重型载货汽车市场竞争的加剧，如何缩短产品开发周期、提高设计效率，降低成本等，提高产品的市场竞争力，已经成为企业成功的关键。

The development of transportation market is influenced directly by the condition of most related industries, such as coal, steel, cement, food, petroleum, capital investment, which influence that of the medium and heavy truck market.

与中重型载货汽车市场关系最紧密的相关行业&煤炭、钢铁、水泥、食粮、石油、固定投资等，其发展状况直接决定了运输市场的发展，进而间接影响到中重型载货汽车市场发展。

Therefore, for lately several years, air suspension be adopted more and more on upscale luxurious passenger car, heavy truck and senior passenger car on domestic and oversea.

所以，近十几年来空气悬架系统在国内外的高档豪华客车、重型载货汽车和高级轿车上被越来越多的采用。

While the dual-front axle steering system of the heavy trucks is widely used, it becomes more and more important to study and analyze its kinematics performances.

随着我国重型载货汽车双前桥转向系统的广泛应用，对双前桥转向系统运动学的分析与研究变得日益重要。

Heavy-dutytrucks, especially large-tonnage heavy-duty trucks are the most important road transport tool, with advantages of low transport costs, high safety and transport efficiency.

重型载货汽车，尤其是大吨位重型载货汽车，具有运输成本低、安全以及运输效率高的优势，是公路运输最主要的工具。

At present, air suspension applied on the heavy-duty truck abroad at the rate of 85%; about 80% of trailers using air suspension.

目前在国外，空气悬架在重型载货汽车上应用率达到了85%；大约有80%的拖挂车使用空气悬架。

With the social development of China, vehicles' comfort and passability, especially for heavy trucks, have become increasingly demanded.

随着中国社会的发展和进步，人们对汽车特别是重型载货汽车通过性和舒适性的要求逐步提高。

Technical Design and Production Practice of Coating Line for New-Style Car Bodies Painting Technology Used in Heavy Duty Truck Bodies

新型汽车车箱涂装线的工艺设计及应用重型载货汽车车身涂装技术

In the process of actual usage, two problems about a certain type bf cargo truck appear.

在实际使用过程中，某重型载货汽车出现了离合器摩擦片烧伤及变速器六档齿轮轮齿折断两个问题。

Analysis and Improvement on Fracture of Drive Bevel Gears in Heavy Duty Truck Rear Axle

重型载货汽车后桥主动锥齿轮断裂原因分析及改进措施

New 4-Series Long Haul Heavy Truck of Scania

斯堪尼亚新型4系列长途重型载货汽车

Research on High Flow Rate& Low Noise Cooling Fan of Heavy Duty Truck

重型载货汽车高流量低噪声冷却风扇研究

Finite Elements Analysis of Heavy-duty Truck's Frame

重型载货汽车车架有限元分析与研究

Painting Technology Used in Heavy Duty Truck Bodies

重型载货汽车车身涂装技术

A Study on Design Parameters Control of Performance of Heavy Duty Truck Chassis

重型载货汽车底盘性能设计参数控制研究

P/ M Parts Used for Dongfeng Medium-duty and Heavy-duty Trucks in China

东风中型及重型载货汽车采用的粉末冶金零件

Research on Powertrain Trade-off of the Heavy Duty Truck

重型载货汽车动力传动系匹配研究

Design of Gearbox's Long-Distance Control Mechanism in Heavy Duty Truck

重型载货汽车变速器远距离操纵机构设计

The contrast tests of one heavy loading AMT vehicle with the flexible control and without it were done, and the test results show that this method can avoid the shift clamping stagnation and increase the shift success rate of AMT vehicle.

在装有AMT的某重型载货汽车上进行了有、无柔性控制的换挡对比试验，试验结果表明，该柔性控制方法可以有效避免换挡卡滞，提高了AMT车辆的换挡成功率。

Secondly, it took some carrier car frame structure as research object, established the entity unit model by using ANSYS, and made a research on the frame modeling process; model. This improved mixing dielectric model yields an excellent fit to measured data.

其次，以某重型载货汽车车架结构为研究对象，利用ANSYS建立了车架结构有限元的实体单元模型，对车架建模过程进行了研究；