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1、.摘 要近几年，随着我国经济建设的飞速发展，我国机动车保有量每年以超过10%的速度递增，尤其是中、高档轿车的增长速度更是惊人。现代所有的汽车制造厂家，都已经意识到车辆经过行驶一段时间后，汽车的行驶系与转向系中各个活动零件，都将因为磨损而造成汽车的行驶稳定性、转向轻便性和乘坐舒适性等性能明显的下降。例如:减震弹簧弹性疲乏，车身底盘距地高度的降低。汽车的悬架及转向系统中各个活动零件的磨损，将会引起零件松动、大梁弯曲或车身倾斜的现象。上述所有情形，都会造成车辆驾驶性能上的瑕疵，以及燃油消耗过多，零件加速地磨损、轮胎磨损过剧等现象。为了降低零件的磨损，汽车制造厂特意将汽车底盘悬架及转向系统予以改良，使
2、其能在一定范围内进行调整，来满足因零件磨损而予以补偿的作用。国外对汽车四轮定位调整技术的研究已有多年，而我国成批量生产轿车只有一二十年，我国的轿车生产基本上是引进外国的技术和生产线，像桑塔纳、捷达、高尔夫、富康等车，都属于家庭用车，在外国已生产了许多年。因此这些车型的四轮定位及调整，还是引进前的技术状况。目前这些车在国外已基本淘汰，在我国还在生产。所以对这些车型的四轮定位调整技术改进，可以在汽车制造厂和社会上一起，对新旧车都予以实施。本论文在阐述了国内外汽车四轮定位的发展沿革，了解汽车四轮定位的发展历程，对二者进行比较并加以阐述后，并对其原理和作用详的分析。同时了解市场上的四轮定位的结构特点，
3、比较异同之处，并对其使用方法进行探讨与说明。然后对市场上几种主要的四轮定位检测技术进行描述和对比，尤其是对其技术的不同之处来进行分析，最后提出汽车四轮定位仪检测技术的发展趋势。关键词：汽车；四轮定位；汽车检测；技术分析ABSTRACTIn recent years, along with the rapid development of economy in China, Chinas motor vehicle quantities of more than 10% a year, speed increases, especially the growth of luxrous cars
4、more astonishing speed. Modern all cars manufacturers, are already aware of cars have been driving after period of time, automobile driving department and steering system of various activities parts, will be caused by car because wear traveling stability, steering portability and ride comfort proper
5、ties significantly reduced. For example: elastic shock springs, weary chassis apart from the ground height reduced. Automobile suspension and steering system of various activities of wear parts, will cause parts looseness and beam bending or body tilt phenomenon. All the above situation, can create
6、vehicles driving performance flaws, and fuel consumption is overmuch, components accelerate scuffed, tire wear after play wait for a phenomenon. In order to reduce part wear, car manufacturers have deliberately automobile chassis suspension and steering system, make its can be improved in a certain
7、range, to meet adjustment because of parts wear the role of compensation. Foreign demand for auto four-wheel location adjustment technology research for many years, and our country into mass production cars only 12 years, our countrys car production basically is the introduction of foreign technolog
8、y and production line, like bebo, the jetta, golf, fukang etc. Car, all belong to the family in foreign transport, already production for many years. So these models of four-wheel location and adjustment, or introduce the technology conditions before. At present, these cars in overseas has basic kno
9、cked out, in China is still in production. So for these vehicles four-wheel location adjustment technology improvement, can be in automobile manufacturers and society of new old car all together, to carry out. This thesis expounds the domestic and foreign automobile four-wheel location of developmen
10、t evolution, understanding the car four-wheel location for both the development course of the comparison and expatiates after, and their mechanism and function detailed analysis. At the same time understanding market on the four-wheel location the structural characteristics, comparative similarities
11、, and its use method were discussed and instructions. Then on to the market on several major four-wheel location detection technology description and contrast, especially on its technical differences for analysis, finally proposes the car four-wheel determination technology development trend.Key wor
12、ds: automobile, Wheel Alignment , vehicle detection, technical analysis目 录1 绪论-11.1引言-11.2本论文主要内容-22 四轮定位的技术综述-2.1汽车四轮定位阐述-2.2汽车四轮定位参数-3 国内外四轮定位发展沿革-3.1我国汽车四轮定位发展史-3.2国外汽车四轮定位发展历史-3.3国内外汽车四轮定位比较及差距分析-4 车轮定位各方面的比较分析-4.1四轮定位的原理与作用-4.2四轮定位仪结构分析-4.3四轮定位仪使用方法-4.4不同四轮定位仪的比较-5 四轮定位仪检测技术-5.1四轮定位仪检测技术列举-5.2四轮定位仪检测技术的比较-6 四轮定位检仪测技术发展趋势-参考文献-34致谢-
