共查询到19条相似文献,搜索用时 187 毫秒
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汽车暖风电动机的无线电骚扰抑制技术研究 总被引:2,自引:1,他引:1
在分析汽车暖风电动机无线电骚扰产生机理的基础上,研究无线电骚扰的抑制技术,并设计出X2Y EMI滤波器 电感滤波器的抑制方案,从而降低了汽车暖风电动机的无线电骚扰。 相似文献
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现代电子技术在汽车上已大量应用,国家标准对汽车电气零部件的无线电骚扰限值和测量方法做出了强制性规定。文章针对TJ7101U型轿车配套暖风机无线电骚扰特性的现状,对抑制无线电骚扰的措施进行了简单分析。在分析暖风电机结构特点的基础上,对抑制无线电骚扰的两种典型滤波电路进行了研究。经多次对暖风机无线电骚扰特性进行测试,最终取得了较好的无线电骚扰抑制效果。 相似文献
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汽车用风机是电磁骚扰源,所产生的骚扰会影响车内无线电接收机的正常工作。因此要求对风机EMI测试,并加以限制。 相似文献
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重庆车辆检测研究院国家客车质量监督检验中心国外对汽车整车的EMC要求主要包括:欧盟72/245/EEC指令《有关车辆的无线电干扰(电磁兼容)》、欧经委ECE R10法规《关于就电磁兼容性方面批准车辆的统一规定》、CISPR12《车辆、船和由内燃机驱动的装置无线电骚扰特性用于保护场外接收机的限值和测量方法》、CISPR25《车辆、船和由内燃机驱动的装置无线电骚扰 相似文献
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电动汽车电磁辐射骚扰测量技术研究与实践 总被引:1,自引:0,他引:1
论述电动汽车的电磁场辐射骚扰的测量技术,重点论述频率范围为9kHz~30MHz的辐射骚扰测量方法中的难点问题,并对2种实验样车的电场和磁场骚扰分别进行了测量验证。 相似文献
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介绍电磁干扰在汽车上的表现形式,由此引入汽车电子产品电磁兼容性问题,结合工作实践,探讨大电流注入(BCI)技术测试汽车收放机抗辐射干扰能力的方法,具有较强的实用性。 相似文献
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C. H. Jang C. S. Kim K. C. Jo M. Sunwoo 《International Journal of Automotive Technology》2017,18(1):147-156
Sensor technologies have been innovated and enhanced rapidly for highly automated vehicle and advanced driver assistance systems (ADAS) in automotive industry; however, in order to adopt sensors into mass production vehicle in near future, various requirements should be satisfied such as cost, durability, and maintainance without any loss of overall performance of the sensors. In this sense, a 3D flash lidar is one of primising range sensors because of no moving parts, compact package, and precise measure for distance by using a laser. In spite of the several advantages, the 3D flash lidar is not commonly used in automotive industry because it is quite expensive for adoption and it is manufactured with only general purpose currently; therefore, the cost reduction and optimal design to satisfy various purposes of ADAS or autonomous driving should be accomplished. In this paper, we propose a novel approach for design factor optimization of the 3D flash lidar based on a geometrical model by using structural similarity between the 3D flash lidar and 2D digital camera. In particular, focal length and area of a receiver (focal plane array and read-out integrated circuit) which directly affect on sensor performance (field of view and maximum detection range) are optimized as the design factors. From the optimization results in simulation, we show that optimal design factors according to various purposes required in ADAS could be easily determined and the sensor performances could be evaluated before manufacturing. It will reduce temporal and economic burdens for design and manufacturing in development process. 相似文献
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汽车产品生态设计方法与评价指标体系探讨 总被引:1,自引:1,他引:0
基于生态学与循环经济的思路,介绍了汽车产品生态设计的概念和基本原则,提出了汽车制造商开展生态设计的基本思路,设定了一套汽车产品环境性能的评价指标体系。从报废汽车回收利用的角度凸显了材料禁用与限用在汽车产品生态设计中的重要地位,为开展汽车产品生态设计和环境性能评价指明了方向。 相似文献
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浅谈汽车产品研发项目风险管理 总被引:1,自引:0,他引:1
随着我国汽车行业发展,车型更替的速度加快,作为项目源头的产品研发风险管理的必要性尤显重要.文中从风险管理的过程出发,结合汽车产品研发过程特点,分析主要存在的风险,论述风险管理的方法. 相似文献
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随着我国汽车工业的飞速发展,汽车产品的可靠性及保证其可靠性的技术日益受到人们的重视。为了优化可靠性试验技术,文章通过分析现有试验方法及其分类差异,总结了各方法的优点和缺点,从探讨汽车可靠性试验方法的经济性、有效性角度出发,提出了改进汽车可靠性试验工作的意见及相应措施,有效地缩短了汽车设计周期,提高了产品设计质量。 相似文献
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Malcolm C. Smith 《Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility》1995,24(1):1-33
A complete set of constraints is derived for the road disturbance transfer functions in a quarter car model of an automotive active suspension, for typical choices of measured outputs. It is shown that any road disturbance responses which are achievable using “full state feedback” can be achieved, to within an arbitrary small tolerance, using a dynamic compensator measuring suspension deflection only. Also considered are the disturbance responses to loads acting on the sprung mass, and a complete set of constraints is derived for these. It is shown that road disturbance and load disturbance responses can be determined independently if suspension deflection and sprung mass velocity are measured. Indeed, any responses achievable separately with “full measurements” can be approximated together to an arbitrary small tolerance. Certain integral relationships are shown to follow from the derived transfer function constraints. These relationships imply fundamental limitations for certain responses (e.g. tyre deflection) no matter what measurements are available for feedback. 相似文献
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车用催化剂的性能评价技术和试验方法 总被引:11,自引:4,他引:11
本文基于对大量国外文献资料的考察分析,论述了车用催化剂的性能评价技术和试验方法,重点介绍了用发动机台架试验对催化剂进行活性评价和快速老化的试验装置和方法。讨论了尽快建立了台架价系统对我国催化器研制开发的重要意义。 相似文献