固铂宣布在华5年计划

2011年6月7日,固铂轮胎橡胶公司宣布了其在华的5年计划,希望在中国地区的轮胎销量能每年提升50％。固铂全球副总裁、亚太区总经理曹克昌表示：公司目前有2个生产基地,其中固铂成山（山东）轮胎公司主要生产高性能乘用车子午线轮胎、客车和卡车轮胎,年产能在1200万条左右。     

自强不息与政府支持成就兴源轮胎集团——广饶轮胎展参展企业采风之一

兴源轮胎集团是山东广饶颇具代表性的轮胎生产企业,该企业从轮胎小厂发展成为轮胎集团,在国内轮胎行业也颇有地位。其发展轨迹也可谓广饶轮胎产业发展的一个缩影。而企业的持续发展得益于政府的扶持和广饶轮胎展的催化作用。     

橡胶沥青应用技术交流会

近年来，随着我国经济的快速发展，汽车保有量不断提高，使得轮胎工业也进入了一个急速膨胀的增长时期。目前我国己成为轮胎生产与消费大国，据统计，2003年我国轮胎总产量达到1．88亿条（扣除摩托车胎后为1．55亿条），仅次于美国而位居世界第二位，并以每年两位数的速度递增，2004年达到了2．39亿条（扣除摩托车胎后为2亿条左右），预计2005年将达到2．7亿条。与此同时，也产生了大量的废旧轮胎，     

正新全钢卡客车轮胎:3大品牌满足不同市场需要

2001年12月28日,为适应轮胎业子午化趋势,厦门正新海燕轮胎有限公司由厦门正新集团投资成立,注册资本1.3亿美元,投资总额达3.9亿美元,主要生产全钢卡客车子午线轮胎,于2004年3月正式投产。目前公司已进入产销快速增长期,市场占有率及市场竞争力稳步提升。     

轮胎新解

轮胎的技术规格目前市场上使用的轮胎共有四种规格体系：P制、欧制、毫米制、字母数字制。美国使用最广的是P制。如果您的轮胎侧面印制的规格为P215/65R95S（具体数字可能有变化）,那么您的轮胎为P制轮胎。P代表轿车轮胎,215代表轮胎的＂截面宽度＂-最宽处的长度-单位毫米,65代表轮胎的高宽比＂＂-即截面高度与截面宽度百分比,R代表子午线结构。15     

“玲珑”获奖 科技取胜

日前,记者从玲珑集团了解到:1月14日,玲珑集团有限公司的"低断面抗湿滑低噪声超高性能轿车子午线轮胎"喜获国家科学技术进步奖二等奖,这是玲珑集团在高端轮胎科技研发方面再一次获得国家级科技奖励。玲珑集团的这次获奖不仅标志着超高性能轿车子午线轮胎的生产技术从此被自主品牌攻破,打破了米其林、普利司通、固特异等国际轮胎巨头长期垄断的格局,也是国家对一直致力于科技创新的玲     

中国轮胎生产是全球增长最快的市场

中国目前是全球最大的轮胎生产国之一。据中国橡胶工业协会统计，中国的轮胎生产是全球增长最快市场，市场规模约为80亿美元，已占世界轮胎市场份额的9％。2007年，中国生产了3．3亿条轮胎。其中5，000万条属于全钢重型轮胎。     

固特异亚太区实现11个季度连续增长

固特异轮胎公司日前宣布，固特异第三季度全球销售额创下51亿美元的历史最好记录，较去年增长了3％。     

固铂增持固铂成山（山东）轮胎公司股份

固铂轮胎橡胶公司前不久发表声明：经中国政府批准，其所持有的固铂成山（山东）轮胎有限公司股份将从原来的51％提升至65％。固铂轮胎将于近期支付增持部分的的股份金额，该部分股份市值将近1800万美元。     

韩泰轮胎一季度销售额突破10亿美元

韩泰轮胎近日透露，得益于超高性能轮胎逾40％的销售增长速度，今年第一季度全球销售额首次突破10亿美元。再一次超过了市场预期。 韩泰轮胎第一季度全球销售额同比增长18．4％，其中，超高性能轮胎销售额增长超过了40％，配套轮胎销售额同比增长了15．7％。     

永盛集团：创新是企业的生命力

山东永盛橡胶集团有限公司成立于1986年,位于广饶县大王镇橡胶工业园,现有员工6 500人,是集全钢子午线轮胎、半钢子午线轮胎及相关配套产品研发、生产、销售及对外贸易为一体的高科技产业集团。     

An easy procedure to determine Magic Formula parameters: a comparative study between the starting value optimization technique and the IMMa optimization algorithm

In 2004, a new searching algorithm for Magic Formula tyre model parameters was presented. Now, a summary of the results, for pure and combined slip, that this algorithm is able to achieve is presented. The Magic Formula tyre model needs a set of parameters to describe the tyre properties. The determination of these parameters is dealt with in this article. A new method, called IMMa Optimization Algorithm (IOA), based on genetic techniques, is used to determine these parameters. Here, we show the computational cost that has been used to obtain the optimum parameters of every characteristic of the Magic Formula tyre model, called Delft Tyre 96. The main advantages of the method are its simplicity of implementation and its fast convergence to optimal solution, with no need of deep knowledge of the searching space. Hence, to start the search, it is not necessary to know a set of starting values of the Magic Formula parameters (null sensitivity to starting values). The search can be started with a randomly generated set of parameters between [0, 1]. Nowadays, MF-Tool, an application developed by TNO, uses an optimization technique to fit Magic Formula parameters from Matlab toolbox [van Oosten, J.J.M. and Bakker, E., 1993, {Determination of magic tyre model parameters}. Vehicle System Dynamics, 21, 19–29; van Oosten, J.J.M., Savi, C., Augustin, M., Bouhet, O., Sommer, J. and Colinot, J.P., 1999, {Time, tire, measurements, forces and moments, a new standard for steady state cornering tyre testing}. EAEC Conference, Barcelona, 30 June–2 July.]. We refer to that algorithm as the starting value optimization technique. The comparison between the optimization technique employed by TNO and the proposed IOA method is discussed in this article. In order to give a relative idea of adjustment accuracy, the sum-squared error and the mean-squared error, from the curves of the tyre model with the parameters optimized by both applications compared with test data are evaluated.     

Design of tyre force excitation for tyre–road friction estimation

Knowledge of the current tyre–road friction coefficient is essential for future autonomous vehicles. The environmental conditions, and the tyre–road friction in particular, determine both the braking distance and the maximum cornering velocity and thus set the boundaries for the vehicle. Tyre–road friction is difficult to estimate during normal driving due to low levels of tyre force excitation. This problem can be solved by using active tyre force excitation. A torque is added to one or several wheels in the purpose of estimating the tyre–road friction coefficient. Active tyre force excitation provides the opportunity to design the tyre force excitation freely. This study investigates how the tyre force should be applied to minimise the error of the tyre–road friction estimate. The performance of different excitation strategies was found to be dependent on both tyre model choice and noise level. Furthermore, the advantage with using tyre models with more parameters decreased when noise was added to the force and slip ratio.     

Estimation of the tyre–road maximum friction coefficient and slip slope based on a novel tyre model

In this article, a new approach to estimate the vehicle tyre forces, tyre–road maximum friction coefficient, and slip slope is presented. Contrary to the majority of the previous work on this subject, a new tyre model for the estimation of the tyre–road interface characterisation is proposed. First, the tyre model is built and compared with those of Pacejka, Dugoff, and one other tyre model. Then, based on a vehicle model that uses four degrees of freedom, an extended Kalman filter (EKF) method is designed to estimate the vehicle motion and tyre forces. The shortcomings of force estimation are discussed in this article. Based on the proposed tyre model and the improved force measurements, another EKF is implemented to estimate the tyre model parameters, including the maximum friction coefficient, slip slope, etc. The tyre forces are accurately obtained simultaneously. Finally, very promising results have been achieved for pure acceleration/braking for varying road conditions, both in pure steering and combined manoeuvre simulations.     

Geometric-based tyre vertical force estimation and stiffness parameterisation for automotive and unmanned vehicle applications

Advanced empirical, and physical-based tyre models have proven to be accurate for simulating tyre dynamics; however, these tyre models typically require expensive and intensive tyre parameterisation. Recent research into wheeled unmanned ground vehicles requiring vertical force analysis has shown good results using a simple linear spring model for the tyre which demonstrate the continued use for simple tyre models; however, parameterisation of the tyre still remains a challenge when load test equipment is not available. This paper presents a cost-effective tyre vertical stiffness parameterisation procedure using only measured tyre geometry and air pressure for applications where high-fidelity tyre models are unnecessary. Vertical forces calculated through an air volume optimisation approach are used to estimate tyre vertical stiffness. Nine tyres from the literature are compared to evaluate the performance of the vertical force estimation and stiffness parameterisation algorithms. Experimental results on a pair of ATV tyres are also presented.     

论轮胎与路面间的摩擦

对轮胎与路面间摩擦产生的机理和影响因素进行了分析。其中产生的机理可归纳为轮胎与路面间分子引力的作用、轮胎与路面间的粘着作用、胎面橡胶的弹性变形及路面上小尺寸微凸体的微切削作用四种；影响轮胎与路面间摩擦的主要因素有滑移率，轮胎类型，胎面花纹的类型、密度系数、深度，路面粗糙度，路面污染情况，路面水膜，气候及充气压力等。     

如何延长汽车轮胎的使用寿命

在汽车运输中,轮胎的使用与维护常常被忽视,因此使轮胎的使用寿命达不到应有的水平。针对这一问题,分析了汽车轮胎损坏的直接原因,介绍了汽车轮胎的正确使用方法与日常维护的注意事项,以期达到延长轮胎使用寿命及降低运输成本的目的。     

如何延长汽车轮胎的使用寿命

介绍了汽车轮胎在使用中不正常磨损的几种情况：一是轮胎冠两肩超常磨损；二是轮胎胎冠中部超常磨损；三是轮胎胎侧呈侧呈锯齿状磨损；四是胎冠呈波浪状或碟片状磨损；五是转向轮胎冠内（外）侧超常磨损等。分析了轮胎不正常磨损的原因。介绍了轮胎的正确使用、定期检查与维护。     

军车轮胎评价指标体系探究

简述了国内外军用车辆配套轮胎发展现状,分析了军用车辆对轮胎的特殊技术要求,根据轮胎与整车性能的相关性分析,运用系统分析和逻辑推理的方法,分别从单胎和整车两个角度构建了军车轮胎的评价指标体系,为军车的轮胎选型、设计和试验评价提供了借鉴。     

3D brush model to predict longitudinal tyre characteristics

A 3D tyre brush model, which aims to predict the longitudinal tyre characteristic under steady-state conditions by modelling the occurring physical effects in the tyre–road contact patch, is presented. The model includes an analytical method to describe the tyre footprint geometry, the pressure distribution, the slip due to the lateral tyre contour, the slip due to braking or traction and the longitudinal as well as the lateral shear stresses on a flattened tyre. The presented development tool offers a method to investigate different rubber friction data (caused by different tread compounds and/or surface textures) and to analyse its influence on longitudinal tyre characteristics. The tyre design is fixed (same casing, dimension and pattern). The results include the shear stresses as well as the different sliding velocities in the contact patch for different slip conditions. The model was developed for a standard summer pattern design and a standard tyre dimension (205/55R16). It can also be adapted to other tread designs and tyre dimensions. To offer a good comparability between model results and test bench measurements, the surface curvature of an internal test rig is considered.