玲珑“省钱专家”卡客车轮胎上市

玲珑轮胎日前推出了卡客车驱动轴专用及导向轮专用省油产品——DL810和TL809两款花纹轮胎。这两款轮胎凭借较低的滚动阻力、更优化的花纹设计和更强壮的胎体结构,保证了产品的最佳使用效果,为广大卡客车用户提供了更加安全、更加经济的轮胎使用方案。     

轮胎气压检测系统在客车中的应用

介绍轮胎气压检测系统的结构及工作原理,以及轮胎在客车使用中的相关问题。     

双胎改单胎，开创中国市场运输理念新纪元——米其林推出公交专用X-One轮胎

2008年3月3日,世界轮胎的著名品牌米其林公司在于苏州开幕的中国国际客车展览会上,正式发布了在中国市场推出的新型公交车专用X-One轮胎——XDU。这种单胎产品彻底改变了传统上在客车上使用的双胎并装的方式。这一高科技的轮胎产品代表了当代最前沿的卡客车轮胎创新理念,可以为客车运输行业创造更高的效益和更高的安全性。这是中国卡客车轮胎市场上首次推出这种创新性的理念和产品,     

双胎并装改单胎米其林推出公交专用X One胎

2008年3月3日，世界轮胎科技领导者米其林公司在于苏州开幕的中国国际客车展览会上，正式发布了在中国市场推出的新型公交车专用X One轮胎-XDU。这种单胎产品彻底改变了传统客车上使用的双胎并装的方式，代表了当代最前沿的卡客车轮胎创新理念，为客车运输行业创造更高的效益和安全性。在中国卡客车轮胎市场上首次推出这种创新性的理念和产品。     

米其林推出全新卡客车冬季轮胎

近日,世界轮胎科技领导者米其林公司在中国市场推出卡客车冬季专用轮胎.这一新系列产品令卡客车驾驶员在冬季的驾驶更加安全.它的上市标志着中国轮胎业正迎来革命性变化--卡客车可以与轿车一样按照不同使用环境选择专用轮胎.     

双胎并装改单胎米其林公交运输新纪元

3月3日，米其林于苏州开幕的中国国际客车展览会上，正式发布了在中国市场推出的新型公交车专用XOne轮胎-XDU。 这种单胎产品彻底政变了传统上在客车上使用的双胎并装的方式。这一高科技的轮胎产品代表了当代最前沿的卡客车轮胎创新理念，这也是中国卡客车轮胎市场上阿次推出这种创新性的理念和产品。     

上海车展专题（五） 为用户节省更多燃油消耗 米其林推出新款省油轮胎产品

自2006年面向中国卡客车轮胎市场率先推出第一条使用Energy省油技术的轮胎XZA 2＋Energy以来,米其林向中国市场提供了多种不同规格、花纹的卡客车省油轮胎。在2011年上海车展期间,米其林面向中国市场再次推出两款卡客车省油轮胎——米其林XDA 2Energy和XDA 2＋Energy,这是米其林面向中国市场首次推出驱动轴专用省油轮胎产品。凭借更低的滚动阻力、更优化的花纹设计和更强壮的胎体设计,这两款产品为国内广大卡客车用户提供了更安全、更高效的轮胎解决方案。     

普通客车使用宽面轮胎的探讨

针对某客运公司普通客车轮胎在正常使用过程中出现过度磨损的异常情况,从技术改造和技术管理的层面进行研究,探讨了轮胎过度磨损的主要原因,提出了使用宽面轮胎的建议;对使用宽面轮胎和普通轮胎的车辆进行对比测试,分析了宽面轮胎技术的可行性和优越性.     

米其林推出首家卡客车轮胎专业网站

日前米其林领先推出了专业的卡客车轮胎网站www．michelintransport．com．cn。这是国内第一个由轮胎厂商创建的卡客车轮胎专业网站,内容集卡客车轮胎知识、科技、产品、服务、渠道、轮胎管理和成功经验交流于一体,将为卡客车用户选择轮胎,查找轮胎店,保养和管理轮胎,分享成功经验提供最为便利的服务。它独立于米其林中国的官方网站,是一个旨在为卡客车轮胎使用者、车队轮胎管理和决策者提供专业顾问的网上平台。     

客车轮胎建模和对侧倾稳定性的影响研究

客车轮胎与客车整车的侧倾稳定性有密切联系,ADAMS是典型的动力学虚拟样机仿真软件。介绍了在ADAMS中建立非线性轮胎的方法,在ADAMS中建立客车整车模型,通过改变整车模型中轮胎的刚度和阻尼,研究客车轮胎对整车侧倾稳定性的影响,从而为设计出符合性能要求的客车轮胎提供一定的理论依据。     

胎面轮廓形状优化技术研究--提高轮胎耐磨耗性能

胎面轮廓形状对轮胎的耐磨耗性能影响很大，因此对其进行优化很有意义。针对胎面轮廓形状比较复杂的特点，文中采用多个变量来定义胎面轮廓。同时，在现有磨耗理论的基础上，通过对胎面轮廓形状的优化初步给出了评价轮胎耐磨耗性能的指标。在此基础上，采用自编的多目标优化程序对胎面轮廓进行优化，并将计算结果与原胎数据进行了比较，结果表明，不论是从胎面的磨耗速度还是从胎面磨耗的均匀性来说优化胎都要优于原始。     

轮胎制动与驱动特性的理论模型

轮胎印迹内垂直载荷的分布与形式的选择，对建立轮胎制动与驱动特性的理论模型有很大影响。根据轮胎制动和驱动时印迹内垂直载荷分布特性，以及轮胎的前后变形特性，建立了轮胎制动、驱动特性的理论模型。应用该理论模型的计算结果，与试验结果具有很好的一致性。     

Identification of the mechanical properties of bicycle tyres for modelling of bicycle dynamics

Advanced simulation of the stability and handling properties of bicycles requires detailed road–tyre contact models. In order to develop these models, in this study, four bicycle tyres are tested by means of a rotating disc machine with the aim of measuring the components of tyre forces and torques that influence the safety and handling of bicycles. The effect of inflation pressure and tyre load is analysed. The measured properties of bicycle tyres are compared with those of motorcycle tyres.     

Laboratory alignment procedure for improving reproducibility of tyre wet grip measurement

Since 2012, the Korean and EU governments have been running a tyre labelling system. All tyres sold in Korea have to carry a label that displays information of two performance criteria: rolling resistance and wet grip. The rolling resistance of the tyres determines their fuel efficiency grading, and the wet grip of the tyres determines their braking safety grading. The rolling resistance and wet grip measurements must be reproducible, so the same tests on the same tyres in different laboratories must produce the same results to ensure a fair comparison between tyres from different suppliers. In addition, a good reproducibility of testing results prevents market surveillance authorities from obtaining results different from those provided by suppliers when testing the same tyres. The laboratory alignment procedure for the rolling resistance measurements was developed and published as the EU Commission Regulation No. 1235 in 2011. However, the laboratory alignment procedure for the wet grip measurements has not yet been developed. Therefore, there are many differences in the wet grip test results among test laboratories throughout the world. The new procedure that is proposed for the wet grip measurement alignment for tyre testing laboratories can improve the reproducibility of the wet grip testing results, and five laboratory alignment tests were carried out between KATECH and five other test laboratories in the world to evaluate the results of the proposed procedure.     

13.7米客车几种随动桥转向结构初探

针对目前三轴客车(6×2)的随动桥轮胎磨损较严重现象,讨论几种随动桥转向结构,为解决轮胎磨损提供参考。     

车轮荷载下土壤静力学特性分析

利用有限元软件ANSYS建立三维有限元模型,模拟车轮和土壤的静态接触,进行非线性有限元分析,研究车轮荷载下土壤的静力学特性。采用基于Drucker-Prager的弹塑性模型来模拟真实土壤,并考虑摩擦作用。分别采用刚性轮模型和超弹性轮胎模型模拟车轮,并将2种情况进行对比。结果表明：在车轮荷载作用下,土壤的竖向位移和等效应力在轮胎与土壤接触的区域最大;土壤的竖向位移和等效应力随土壤深度的增加而减小;土体在刚性轮作用下的变形和应力要远大于其在超弹性轮作用下的值,表明虽然刚性轮几何形状简单,模型设置容易,但是与超弹性轮胎模型相比,这种模拟精确度低。     

Effect of vertical and lateral coupling between tyre and road on vehicle rollover

The vehicle stability involves many aspects, such as the anti-rollover stability in extreme steering operations and the vehicle lateral stability in normal steering operations. The relationships between vehicle stabilities in extreme and normal circumstances obtain less attention according to the present research works. In this paper, the coupling interactions between vehicle anti-rollover and lateral stability, as well as the effect of road excitation, are taken into account on the vehicle rollover analysis. The results in this paper indicate that some parameters influence the different vehicle stabilities diversely or even contradictorily. And it has been found that there are contradictions between the vehicle rollover mitigation performance and the lateral stability. The direct cause for the contradiction is the lateral coupling between tyres and road. Tyres with high adhesion capacity imply that the vehicle possesses a high performance ability to keep driving direction, whereas the rollover risk of this vehicle increases due to the greater lateral force that tyres can provide. Furthermore, these contradictions are intensified indirectly by the vertical coupling between tyres and road. The excitation from road not only deteriorates the tyres’ adhesive condition, but also has a considerable effect on the rollover in some cases.     

Influence of load and inflation pressure on the tyre rolling resistance

Tyre load and inflation pressure are important factors controlling rolling resistance of road vehicles. The article presents results obtained in the Technical University of Gdańsk during laboratory and road measurements of different car tyres rolling on different pavements. The knowledge of rolling resistance characteristics is important for modelling car dynamics as well as fuel consumption. It is also necessary to establish proper test conditions in the future standardized on-road method of measuring rolling resistance. The results indicate that while an increase of load always leads to the increase of rolling resistance force, the influence on Coefficient of Rolling Resistance is more complicated and unpredictable. They also indicate that tyres with high rolling resistance are more sensitive to inflation pressure changes than low rolling resistance tyres.     

Steady Turning of Two-Wheeled Vehicles

When driving along a circular path, the driver of a motorcycle controls the vehicle mainly by means of steering torque. If low steering torque is necessary, the driver feels that the vehicle is manoeuvrable. In this paper, a mathematical model concerning steering torque is developed; it takes into account the actual kinematic behaviour of the vehicle and the properties of motorcycle tyres. Tyre forces act at the contact points of toroidal tyres, which are calculated according to kinematic analysis. Non-linear equations are solved using an iterative approach. Several numerical results are presented, and the influence of tyre properties and some geometrical and inertial properties of the vehicle on steering torque are discussed.     

轮胎径向尺寸对加速行驶车外噪声的影响

为了准确获取轮胎径向尺寸变化对加速行驶车外噪声试验的影响,文章采用同一辆乘用车换装2种型号轮胎,依据GB1495—2002《汽车加速行驶车外噪声限值及测量方法》进行对比试验。结果显示,轮胎径向尺寸变化会对加速行驶车外噪声试验结果产生影响,并指出采用径向尺寸较小的轮胎,加速行驶车外噪声试验过程中汽车发动机转速越高,噪声试验最终结果也越大。文章建议将轮胎尺寸的差异列为车型判定的条件。