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故障现象:一辆解放CA1121J型汽车,在一次雨天行驶时,将雨刮器开关拨到低速挡,雨刮片只抖动一下便停了下来。故障检查:首先查看雨刮器及清洗泵保险丝(10安),发现已烧断。换上统一电流规格的保险丝后,刮水器正常运转。但当更换其它挡位时,保险丝屡次烧坏。对雨刮器系统中各相关电路的线束、保险丝盒、低速雨刮继电器、高速雨刮继电器及间歇雨刮控制器检查,未发现有线束破损、短路和搭铁现象。 相似文献
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汽车雨刮系统是车辆安全运行的主要保障之一,本文主要介绍了重型汽车雨刮的组成工作原理及雨刮出现不工作故障的排查。 相似文献
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车型:帕萨特,配置2.0L发动机。行驶里程:108000km。故障现象:该车雨刮器只有间歇挡能正常工作,1挡和2挡都无法正常工作,雨刮喷水时候,喷水电机喷水正常,但是雨刮电机却不能工作。之前该车在本站已经维修了一天多时间,维修技师尝试着更换了雨刮电机、雨刮开关、雨刮继电器,测量过所有线路皆正常,但是故障依旧无法排除,实在束手无策,才过来求助。故障诊断:由于维修技师还没找出故障原因,因此和雨刮相关的配件都没装回,雨刮电机单独放在挡风玻璃下面,雨刮开关也被单独拆下来吊在转向 相似文献
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周后瑜 《实用汽车技术合刊》2007,(4):22-24
通过对吉江客车NE6602D1雨刮控制电路工作原理的分析,提出改装雨刮器间歇控制器的两种方法。
有一吉江中巴客车,NE6602D1宁波第二车辆厂2002年5月出厂,采用朝阳YC4105发动机、江淮HFC6700底盘、24V电系,各项性能优越,美中不足的是汽车雨刮器只具有快慢工作档,无间歇雨刮功能, 相似文献
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针对互通式立交出口可能出现的多种情况,结合工程实践,探讨其设计技术问题,提出设计思路及技术对策,并在技术分析中强调融入“安全至上”“动态设计”“灵活性设计”“宽容性设计”等设计新理念,使出口设计安全、合理. 相似文献
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水泥混凝土安全护栏 总被引:1,自引:0,他引:1
赵文光 《筑路机械与施工机械化》1994,11(2):9-14
通过水泥混凝土安全护栏在道路交通中的实际应用,对其结构形式和主要参数以及具体的施工方法进行了较为详实的叙述,并对比介绍了水泥混凝土安全护栏的使用效果。 相似文献
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盾构隧道施工风险与规避对策 总被引:7,自引:2,他引:5
归纳地铁安全事故的类型及特点,介绍目前国内外盾构隧道情况,尤其是北京盾构隧道情况,分析盾构隧道施工的优点和不足之处,论述盾构隧道施工风险研究的必要性。重点分析盾构隧道施工的11种主要风险,即:地质预报准确性、盾构机适应性和可靠性、盾构进出洞施工、开挖面失稳、盾尾密封失效、软硬不均且差异性较大地层施工、较大的地层损失及不均匀沉降、开挖面有障碍物、隧道上浮、联络通道施工、明挖基础失稳等,并一一提出切实的规避对策。同时对国内外盾构隧道施工事故典型案例的情况及原因进行详细介绍和剖析。可为今后盾构隧道施工风险的分析、预测、防范及规避提供指导。 相似文献
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《Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility》2012,50(12):1681-1694
A bicycle or inverted pendulum can be balanced, that is kept nearly upright, by accelerating the base. This balance is achieved by steering on a bicycle. Simultaneously one can also control the lateral position of the base: changing of the track line of a bike or the position of hand under a balanced stick. We show here with theory and experiment that if the balance problem is removed, by making the system neutrally stable for balance, one cannot simultaneously maintain balance and control the position of the base. We made a bricycle, essentially a bicycle with springy training wheels. The stiffness of the training wheel suspension can be varied from near infinite, making the bricycle into a tricycle, to zero, making it effectively a bicycle. The springy training wheels effectively reduce or even negate gravity, at least for balance purposes. One might expect a smooth transition from tricycle to bicycle as the stiffness is varied, in terms of handling, balance and feel. Not so. At an intermediate stiffness, when gravity is effectively zeroed, riders can balance easily but no longer turn. Small turns cause an intolerable leaning. Thus there is a qualitative difference between bicycles and tricycles, a difference that cannot be met halfway. 相似文献
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《Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility》2012,50(10):1575-1596
Steering feel, or steering torque feedback, is widely regarded as an important aspect of the handling quality of a vehicle. Despite this, there is little theoretical understanding of its role. This paper describes an initial attempt to model the role of steering torque feedback arising from lateral tyre forces. The path-following control of a nonlinear vehicle model is implemented using a time-varying model predictive controller. A series of Kalman filters are used to represent the driver's ability to generate estimates of the system states from noisy sensory measurements, including the steering torque. It is found that under constant road friction conditions, the steering torque feedback reduces path-following errors provided the friction is sufficiently high to prevent frequent saturation of the tyres. When the driver model is extended to allow identification of, and adaptation to, a varying friction condition, it is found that the steering torque assists in the accurate identification of the friction condition. The simulation results give insight into the role of steering torque feedback arising from lateral tyre forces. The paper concludes with recommendations for further work. 相似文献
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目前国内为了片面地提高路面强度来解决抗车辙能力,在沥青混合料原材料选用和组成设计中存在着误区,出现了其它质量问题。通过误区的提出和解决对策的探讨,期望能对公路设计者、建设者和养护者们提供一些参考,减少公路病害,降低养护成本,提高公路使用质量。 相似文献
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在汽车各部位,发动机发生故障的几率最高。为了寻找这些故障是由哪些因素引起、这些因素在发动机生命期各阶段的分布和它们如何引起发动机故障,通过搜集大量不同型号发动机发生的故障并统计和分析这些故障的成因,从中分离出发动机故障与设计、制造缺陷及使用与维护不当的关系。这为主动改善汽车发动机生命期质量提供了一种新的方法。 相似文献