轮胎压力监测技术

轮胎气压不足将对汽车的安全性、经济性产生不利影响。文中分析了轮胎欠压对汽车性能的影响，分类介绍了目前轮胎气压监测系统。并对轮胎气压预警系统的发展趋势作了展望。     

非接触式胎压安全报警系统的研究

在现代汽车上,轮胎气压对汽车的安全性、舒适性、经济性以及操纵稳定性都有非常大的影响. 为了能更好地对轮胎气压起到更准确的监控,笔者在对已有的类似系统进行了简单介绍后,通过半径比较法和频率修正法设计研究了一种非接触式胎压安全报警系统.最后采用了一个应用实例,说明了该系统的实用性和科学性.     

汽车轮胎压力监测系统的发展动态

轮胎气压保持正常值是汽车行驶安全性和舒适性的重要保证。由于胎压的非正常而引发的交通事故频频发生。因此,能够对胎压进行实时监测就显得尤为重要。本文较全面地叙述了国内外轮胎气压监测技术的研究成果及发展现状,介绍了汽车轮胎气压监测系统的作用、基本构造及工作原理。同时对我国轮胎气压监测系统的发展提出建议。     

轮胎气压自动监测和报警系统

设计了基于单片机的轮胎气压自动监测和报警系统,该系统由轮胎气压传感转换,电子控制单元和压力显示报警部分组成,具有动态显示轮胎气压和在压力异常时自动进行声光报警等功能,使轮胎保持正常的充气压力,以保证汽车安全行驶.     

北汽绅宝胎压监测系统原理及检修

<正>轮胎气压监测系统(TPMS)用于在汽车行驶时,对轮胎的压力进行监测,在监测到轮胎气压异常时进行报警,提醒驾驶员采取措施,避免危险情况发生。1 TPMS系统类型北汽绅宝系列车型安装有直接式或间接式轮胎气压监测系统。直接式胎压监测系统,利用安装在轮胎里的胎压传感器来直接测量轮胎的气压,对各轮胎气压、温度进行监测及显示,当轮胎气压、温度异常时,自动进行报警;间接式胎     

TPMS系统的应用

随着社会消费者安全意识的提高和安全法规标准的深入,汽车的另一项安全技术——TPMS轮胎气压监测系统正在广泛应用。通过对TPMS系统的组成、系统的标定及初始化学习的简要介绍,使读者了解TPMS轮胎气压检测系统的当前应用和发展方向。     

东风EQ2050(猛士)中央充放气系统详解

中央轮胎充放气系统(CTIS)是在车辆行驶过程中,对各个轮胎进行实时充气和放气的气压调节装置.由于越野汽车经常行驶的道路状况比普通汽车复杂得多,沙地、急造军路等软路面需要降低轮胎气压以增加对路面的附着力,而在普通柏油或水泥路面上需要提高轮胎气压以减少滚动阻力.车轮中央充放气系统能使驾驶员在规定范围内改变轮胎气压.在不同的地面和气候条件下,分别或同时调整前轮、后轮的胎压,使车辆具有最大附着力和灵活性,以适应各种不同的路面条件和气候情况,提高汽车的通过能力.所以,中央轮胎充放气系统成为越来越多越野汽车的标准配置.     

丰田公司车辆轮胎气压报警系统原理及使用

轮胎气压对现代高速汽车的经济性、安全性和操纵稳定性的影响非常巨大。如何在车辆运行中对轮胎气压进行检测意义重大。本文收集了国内外这方面研究的有关资料 ,结合丰田公司的应用实例 ,阐述了此项研究的原理、力学模型及实际运用中的注意事项 ,对含有此系统车辆的运用和研究具有实际价值     

轮胎气压监测系统技术分析与发展趋势

轮胎气压监测系统的发展现状轮胎气压监测系统TPMS(TirePressure Monitoring System)是智能轮胎技术的一种.普利司通轮胎因召回事件发生后,美国国会于2000年就通过了TREAD法案,该法案的要求之一是到2006年,所有在美国销售的汽车都必须安装轮胎气压监测系统.     

冰雪路面行车技巧

出车前做安检--出车前应加强对汽车的检查,尤其是转向系统和制动系统应有效、可靠.制动时不得有跑偏和侧滑现象.轮胎气压应取规定值的下限,且左右轮胎气压相同.轮胎花纹被磨损了的轮胎应及时更换.货物装载应匀称,且两侧车轮载荷相等.     

捷豹XF轮胎压力灯亮的故障诊断与排除

从捷豹XF轮胎压力灯亮的故障入手,详细阐述轮胎压力监控系统的结构组成及工作原理,并根据故障现象,深入分析故障原因,最终排除故障。     

实测轻型货车轮载作用下沥青路面力学响应分析

作者利用自己实测的轮胎接地压力分布,用三维有限元方法分析了轻型货车不同轮胎,在不同胎压和不同负荷作用下,沥青路面结构层的力学响应。结果表明:实际的轮胎接地压力分布具有明显的非均匀性,且随轮胎的结构类型、花纹、胎压、负荷甚至使用年限的不同而有很大的差异。轻型货车对路面结构产生的应力响应不能忽视。     

浅析东风雪铁龙C5轿车轮胎气压不足监测系统

主要论述东风雪铁龙C5轿车轮胎气压不足监测系统的基本结构及运行原理。     

基于无线射频技术的汽车轮胎胎压监测系统研究

胎压异常严重威胁着交通安全,随时会造成交通事故,是汽车安全问题上的一个关键点.针对这个现象,本设计提出了一种基于51单片机的汽车胎压监测系统,以此来实现监测胎压异常的功能.本次设计是以STC89C52单片机为核心,气压传感器、无线传输模块、LCD为主要器件,设计一块接收模块和一块采集模块.将带有压力传感器的采集模块置入...     

Development of a valve and optimization of a tube for self-inflating tire

Worldwide, the tire market requires safe and eco-friendly tires. In this study, a self-inflating tire (SIT) was studied and manufactured. Self-inflating tire refers to a technique for maintaining appropriate tire pressure. An internal regulator senses when tire inflation pressure has dropped below the set air pressure. The tire boosts air through the valve when rolling and compressed air enters into the tire. This procedure keeps the tire air pressure at an appropriate level and increases tire safety. In this study, a regulator was used as a negative-pressure system. A check valve was selected the minute flow check valve depending on the shape of the configured system. In addition, the material of the tube was developed with excellent physical properties and resistances (elastic rebound, working temperature, etc.) owing to its complete compression and restoration. A tube performance tester was developed and a computer aided engineering (CAE) model was modeled for comparison with the test results. Using the tester and model, it was possible to optimize the shape of the tube and regulator. Finally, the reliability of the study was verified through the prototype test. The developed equipment and systems can be used for the manufacture of high-performance and safe tires.     

车用轮胎压力与温度监测系统的研究

汽车胎压监视系统主要用于在汽车行驶时实时地对轮胎气压、温度进行自动监测,对轮胎漏气、气压异常高温进行报警。制动系统的性能与驾乘人员安全密切相关,因此制动气压的精准性是一个非常重要的问题。     

轻型货车轮胎接地压力分布实测

利用自主开发的轮胎接地压力测试仪,进行了轻型货车不同花纹和不同使用年限轮胎,在不同轮胎胎压和不同负荷作用下,轮胎的接地压力分布规律测量。实测结果发现:轻型货车轮胎与路面的接触形状更接近于矩形;新胎比旧胎的接地压力要均匀些;轮胎胎压与平均接地压力、轮胎负荷与平均接地压力、轮胎负荷与有效接地面积基本上呈线性关系。     

An optical tire contact pressure test bench

An optical tire contact pressure test bench developed by the IMMa group is described. The measurement system is based on the frustration of total internal reflection (FTIR) of light. The test bench allows performing normal pressure distribution and patch contact shape measurements on passenger car tires. The system is based on the use of a laterally illuminated glass on which the tire leans. Between them a plastic interphase is located that will cause the FTIR of light. A video camera catches the formed shining image through the glass. The brightness level in each pixel of the image can be related to the existing normal pressure. The study of the contact patch provided by the bench makes it possible to characterize tire behaviour under different loading states, inflation pressure, tire defects and toe and camber angles. The bench incorporates a computerized load and control system of the tire operation parameters, an image acquisition module and a data acquisition system that allow monitoring and acting on the experimental variables of interest in the tests such as load on the tire and environmental conditions. A supporting mechanical system incorporated to the bench allows providing the tire with variable toe and camber angles. From the images obtained with this system, the maximum normal pressure points, total force, size and shape of the patch can be determined, which are related to the tire-use conditions. As an application example, results that show the patch size and shape under different load and tire inflation pressures are presented. A further application, which is the use of the system for the detection and study of defective tires is also presented.     

Sliding-mode-based parameter identification with application to tire pressure and tire-road friction

This paper presents a method of simultaneous estimation of tire pressure and tire-road friction. A sliding-mode scheme is designed to identify the system state and the parameter variation of a torsional tire system, which greatly depend on the change in tire pressure. Then, the recursive least-squares method with a forgetting facto is used to estimate the parameter variations of the tire system and the tire-road friction force without a friction model using the information retrieved from the equivalent input for sliding motion. A simulation study is performed to illustrate the effectiveness of the proposed method.