Abstract：The authors studied the innovative applications of the inductively coupled plasma-atomic emission spectrometry in automotive hydraulic power steering system fault diagnosis. After having determined Fe, Cu and Al content in the four groups of Buick Regal 2.4 main metal power-steering fluid whose travel course was respectively 2~9 thousand kilometers, 11~18 thousand kilometers, 22~29 thousandkilometers, and 31~40 thousand kilometers, and the database of primary metal content in the Buick Regal 2.4 different mileage power-steering fluid was established. The research discovered that the main metal content increased with increasing mileage and its normal level is between the two trend lines. Determination of the power-steering fluid main metal content and comparison with its database value can not only judge the wear condition of the automotive hydraulic power steering system and maintain timely to avoid the traffic accident, but also help the automobile detection and maintenance personnel to diagnose failure reasons without disintegration. This reduced vehicle maintenance costs, and improved service quality.
Key words：ICP-AES;Hydraulic power steering system;Fault detection;Application
[1] MENG Liu-ji，MENG Qian-na(蒙留纪, 蒙倩娜). Tractor & Fram Transporter(拖拉机与农用运输车)，2009，36(6)：139. [2] YAO Hui-min(姚会民). Agricultural Technology & Equipment(农业技术与装备)，2008，(12)：44. [3] XIE Hou-xun，GAO Xiang(解后循，高 翔). Transactions of the Chinese Society for Agricultural Machinery(农业机械学报)，2007，38(11)：178. [4] WANG Ruo-ping，JIANG Jun， GAO Xiang(王若平，蒋 军，高 翔). Transactions of the Chinese Society for Agricultural Machinery(农业机械学报)，2006，37(11)：16. [5] GE Sheng-yong，ZHANG Jun-jie(葛胜勇， 章军杰). Tianjin Auto(天津汽车)，2005, (3)：34. [6] WANG Hui，WANG Guo-xin，XU Yu-yu，et al(王 慧，王国新，许玉宇，等). Spectroscopy and Spectral Analysis(光谱学与光谱分析)，2011，31(9)：2558. [7] TAN Qiu-yan，Lü Huan-ming，LIU Hui-mei(谭秋艳，吕焕明，刘慧玫). Lubricating Oil(润滑油)，2007，22(5)：55. [8] LI Tuo，YANG Jun-hong(李 佗，杨军红). Metallurgical Analysis(冶金分析)，2012，32(2)：70.
