某越野车辆中央充放气系统轮胎充放气时间计算方法研究

随着汽车技术的发展中央充放气系统更多的运用在战术车辆上,充放气时间是中央充放气系统的重要指标。本文对针对某军用8X8战术越野车辆轮胎的充放气时间的较为精确的计算方法进行了研究,供广大设计工作者参考。     

浅谈某越野汽车中央充放气系统的设计

中央充放气系统主要功能是在车辆停止和行驶状态下给轮胎进行充气、放气、测压和保压,以提高车辆的软地面通过性和生存能力。本文对某越野汽车中央充放气系统进行了分析介绍与充放气时间的计算,为各类变型车及新车型开发提供理论依据与参考。     

汽车轮胎中央充放气系统的发展历程

汽车轮胎中央充放气系统是一套汽车在行驶中(或停驶时)能够随时检测和调节轮胎气压的系统.它的主要作用是:当汽车通过沙漠、沿海滩涂、沼泽、泥泞地等松软地面及冰雪路面时,通过该系统可快速地降低轮胎气压,增大轮胎的接地面积,一方面使轮胎沉陷量和土壤阻力减小;另一方面,由于轮胎嵌入土壤中花纹数目的增多,增大土壤的推进力,大幅度地增加牵引力,提高汽车的通过性.     

轮胎中央充放气系统及其技术实现

介绍了轮胎中央充放气系统的基本原理、功能和作用。以某三轴车型为例,对其总体结构设计和关键部位设计进行了阐述。通过试验验证,设计的轮胎中央充放气系统完全实现了车辆行驶过程的测压、充气和放气功能,具有较高的实用价值。     

浅谈中央充放气系统充放时间计算

本文针对不同容积轮胎及充气压力下充放气系统所需充放时间进行计算,使其根据气温,路面状况的不同,自动调节控制轮胎气压,产生最大附着力而又不至于产生过大阻力,保证汽车始终保持最合理的运动状态,提高车辆的地面通过性和工作效率。     

轮胎中央充放气系统及其在斯达—斯太尔车上的应用前景

介绍了轮胎中央充放电气系统的发展及现状，阐明该系统的原理及其功能，通过分析，指出轮胎中央充放气系统在斯达－斯太尔汽车上的应用难点在于旋转密封环在轮组上的布置难度大，并展望了其在斯达－斯太尔汽车上的应用前景。     

轮胎中央充放气系统对轮式车辆性能及公路系统的影响

轮胎中央充放气系统的发明，使得驾驶员无论在汽车停驶状态还是行驶中都可在驾驶室内方便地对轮胎气压进行检测和调节，大大提高了轮式越野汽车的机动性能，是越野汽车机动性能的增强器。文章介绍了轮胎中央充放气系统的发展、功能、作用及对公路系统的影响，展望了该技术在我国广泛的应用前景。     

轮胎中央充放气系统概述及应用改进

本文简要叙述了轮胎中央充放气系统的定义,介绍了系统的基本结构和工作原理,结合实际工作中出现的问题,对中央充放气系统进行优化改进.     

出口热带地区某重型越野汽车冷却系计算

为校核车辆在热带地区适应性而进行发动机冷却系散热性能计算分析是新产品适应性开发中必须进行的项目。本文通过对某重型越野汽车冷却系计算,并对风扇及散热器等部件能力进行校核,为同类车型设计提供了参考依据。     

Road and off-road vehicle system dynamics. Understanding the future from the past

A detailed analysis of scientific research directions and methods in ground vehicle dynamics and vehicle system dynamics during the past century is presented in this article. What started as peculiarities of vehicle motion, dynamics of vehicles went through extensive research and engineering work and was established as an applied science – vehicle dynamics. Steady motion and transient manoeuvres, multi-flexible-body dynamics, nonlinear and stochastic dynamics, terramechanics, vehicle operational properties and their multi-criterion optimisation, computer modelling and simulation, analysis and optimal synthesis, various controls, inverse vehicle dynamics, open architecture-type, and multi-domain vehicle systems – these are the milestones of developments over the past century. This article considers the subject-matter and the substance of vehicle dynamics in general, and new research directions of modern vehicle dynamics in particular. It is shown that modern vehicle dynamics is acquiring principally new features including agile dynamics of multi-physics mechatronic systems (including cyber-type systems), coupled and interactive vehicle system dynamics.     

SX5624ZPV364非公路自卸车的悬挂系统侧倾角分析及计算

本文对SX5624ZPV364非公路自卸车的悬挂系统的侧倾角刚度进行了详尽的分析及计算,为SX5624ZPV364非公路自卸车悬挂系各总成的设计提供理论依据。     

汽车尾气循环制热与发电系统军事应用技术研究

介绍了当前野战车载系统在发电、舱内制热等方面的现状及问题,论证了汽车尾气能源在野战车载系统中综合应用的可行性,描述了基本原理,提出了初步方案。     

尾气加热式水暖系统在城市客车上的应展

简述了城市客车尾气加热式水暖系统的特点、工作原理，提出在设计过程中的注意事项。     

Evaluating the use of an urban consolidation centre and electric vehicles in central London

The paper focuses on the role that can be played by urban consolidation centres (UCCs) in reducing freight traffic and its environmental impacts in towns and cities. It is based on the before and after evaluation of a trial led by a major stationery and office supplies company in which urban freight deliveries in central London made from a depot in the suburbs using diesel vehicles were replaced with the use of an urban micro-consolidation centre located in the delivery area together with the use of electrically-assisted cargo tricycles and electric vans. The results show that the total distance travelled and the CO₂eq emissions per parcel delivered fell by 20% and 54% respectively as a result of this delivery system. However, the evaluation has also indicated that the distance travelled per parcel rose substantially in the City of London delivery area as a result of the electric vehicles having far smaller load limits in both weight and volume compared with diesel vans. But, at the same time, the trial system was able to virtually eliminate CO₂eq emissions per parcel delivered in the City of London. The trial proved successful from the company's perspective in transport, environmental and financial terms. The company therefore decided to continue the operation beyond the end of the trial with it being officially launched during 2010.     

重型商用车双回路液压应急助力转向系统关键技术浅析

本文主要介绍了双回路液压应急助力转向系统的组成及工作原理,分析了作为双回路液压应急助力转向系统核心部件的应急阀、切换阀总成的设计及工艺方面的关键技术,讨论了影响切换平顺性的阀芯卡紧问题,并提出了相应的解决措施。