共查询到20条相似文献,搜索用时 140 毫秒
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碳纤维复合材料具有比强度和比模量高、质量轻、抗疲劳性能好及减振性能优良等诸多优点,已被广泛应用于汽车工业。文章介绍了碳纤维复合材料的性能特点,以及在汽车工业中的应用优点,同时介绍了它的发展历程和应用实例。 相似文献
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燃油箱是车上唯一储存燃油的地方,是车上重要的安全部件。它必须牢固、密封。传统的燃油箱用金属制造,随着塑料在车上应用范围日益扩大,现在一种塑料燃油箱正逐渐取代金属燃油箱。塑料燃油箱应用的前提是,它必须具有金属燃油箱的性能,要具有耐冲击、不易渗漏和阻燃.防静电等作用,同时它又要有比金属燃油箱更优越的性能。 相似文献
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PIC单片机在汽车性能检测设备中的应用 总被引:2,自引:0,他引:2
介绍了,在单片机世界里日益成为主流产品的PIC单片机,并把它应用到汽车性能检测设备中的实际设计中,给出了系统硬件、软件及电磁兼容性的设计方法。实践证明,该系统性能稳定,抗干扰能力强,测量精度高,具有较高的实用价值。 相似文献
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本文分析了高强度螺栓在实际应用中发生延迟断裂的成因及其危害性,提出了通过对高强度螺栓钢和超高强度螺栓钢的化学成分的有效控制改进钢材性能的要求,展望了它的应用前景。 相似文献
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针对水泥混凝土路面的破损修补,介绍了一种新型水泥混凝土路面高性能快速修补外掺剂,并对它的主要性能及工程应用进行了研究。 相似文献
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电控柴油机传感器的结构原理及测试 总被引:1,自引:0,他引:1
电控柴油发动机能够根据环境、工况等的变化进行自我调节和控制,它主要通过各种传感器来监测当前的运行参数。本文简要介绍温度传感器、压力传感器和速度位置传感器这3类传感器的结构原理及测试方法。 相似文献
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B. J. Moon H. G. Jung S. G. Lee D. H. Kim 《International Journal of Automotive Technology》2014,15(3):483-494
This paper describes a parallel model-based fault detection algorithm for an electronic parking brake (EPB) system, which consists of an electronic control unit with built-in current sensor and braking force sensor. For the EPB system to supply sufficient parking force to a vehicle, the parking force sensor is of utmost importance. If a fault occurs in this sensor, sufficient parking force may not be supplied, thereby seriously threatening the safety of the vehicle. Thus, a fault detection method is required for the parking force sensor of the EPB system to improve the safety of vehicles. For this purpose, a highly reliable fault detection method is needed to detect abnormal fault signals, which cannot be detected by the existing on-line sensor monitoring fault detection methods. This paper proposes a novel parallel model-based fault detection algorithm for the EPB system, which compares the physical sensor data with the mathematical model, the fuzzy model, and the neural network model at the same time. In order to reduce false alarms, the magnitude of thresholds and the operation counts are changed adaptively. When the proposed parallel model-based fault detection algorithm detects severe failures of the force sensor, it warns the driver in advance to prevent accidents due to the failures. The proposed algorithm is verified by hardware-in-theloop simulations in various situations. 相似文献
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介绍了一种新型的振动压路机测试系统。该系统由振动、压力、温度、转速等多种传感器采集压路机各处的信号,再汇总到工业控制计算机中由专用软件进行分析,优于传统的人工或者传统仪器测试的方法。该系统已在国内压路机生产厂家实际应用,具有实际意义。 相似文献
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《JSAE Review》1996,17(3):281-286
In a previous paper, oil-film pressure in an engine main bearing was measured by a using thin-film Manganin sensor. This sensor had adequate sensitivity to strain and temperature in terms of measurement principle. In this study, more accurate measurement of oil-film pressure was allowed by the formation of the newly developed thin-film strain sensor made of Ni-Cr-Al at the same location as that of the Manganin pressure sensor, and the correction of measurement errors caused by strain. The characteristics of bearing metal surface strain varied by engine operating conditions are also shown in this paper. 相似文献
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AE888作为大众的明星发动机,更新到的第三代发动机性能更为出色,因此本文主要介绍如何利用曲轴位置传感器和凸轮轴位置传感器波形来分析发动机正时情况。发动机正时错误是导致发动机抖动的主要原因之一,以往验证正时都是通过正时工具、正时记号。都需要拆卸部分零部件才得以验证,本文通过对比G28、G40两个传感器波形就可以判断发动机正时情况。 相似文献
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简述电控汽油喷射发动机爆震传感器的工作原理,对桑塔纳2000GSi型轿车爆震传感器的故障诊断和检测方法进行分析说明,并列举检测分析实例。 相似文献
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上海别克轿车装配了带加热器的二氧化锆氧传感器,用以检测混合气空燃比。介绍该氧传感器的结构、原理及故障诊断。 相似文献
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