1、Unit Ten Vehicle Tests and Facilities Passage AKinds of Vehicle Tests Any newly designed and developed cars must be carried on a series of vehicle tests before they are put into mass production Vehicle test refers to the working process in which a vehicle or some assemblies must be carried on variou
2、s tests according to the test outline as well as some standards concerned Vehicle test must use specialized equipment,the laboratory and the specialized vehicle proving grounds The major aims of vehicle test are to evaluate the car performance,find out its defects and weak links in order to further
3、research and put forward improving implement to improve the vehicle performance Vehicle tests are classified in accordance with test purpose,test object and test site According to the test purpose,vehicle tests are divided into quality test,new product test and scientific research test Quality test
4、is to evaluate the cars quality,find out existing problems in time and make sure the quality control New product test is to assess whether the new developed product accords with the designed requirements before the new developed cars are put into mass production Scientific research test is a series
5、of activities to promote the technology advance for vehicles According to the test object,vehicle tests are divided into complete vehicle test,assembly test and component test Complete vehicle test is to assess the main technical performances of a vehicle,such as dynamic property,fuel economy,ride c
6、omfort,maneuverability,stability and traffic ability Assembly test is mainly to assess the operating performance and durability of each assembly in a vehicle,such as engine power,transmission efficiency and suspension unit Component test is to determine main components for their reasonable structure
7、 and design and measure their rigidity,strength and durability and service lifetime According to the test site,vehicle tests are divided into indoor bench test,outdoor road test and proving ground test Indoor bench test(see Fig.10-1)is carried on in a room equipped with a specialized test bench,on w
8、hich a complete vehicle is put to have a road simulation test Through the road simulation,some parameters from the test bench are precisely controlled in order to simulate the vehicle in actual operation condition It is also called remote parameter control(RPC).Outdoor road test(see Fig.10-2)is cond
9、ucted outdoor on ordinary road It is designed to verify a vehicle running on the actual road for the real technical performance.Proving ground test(see Fig.10-3)is used to conduct all kinds of vehicle performance tests without being affected by traffic.In the same ground there are many different kin
10、ds of roads for different test purposes Through the proving ground test,we can determine vehicles reliability,durability,fuel economy and service lifetime,and so on.New Words and Expressions evaluate ivljueit vi&vt 评价;估价 defect difekt n 缺点;瑕疵 implement impliment vt 实施,执行 assess ses vt 评定;估价 promote
11、prmut vt 促进;提升 stability stbiliti n 稳定性 durability djurbilti n 耐久性;持久性 reasonable riznbl adj 合理的 rigidity rididti n 硬度 parameter prmit n 参数 a series of一系列的New Words and Expressions test purpose试验目的 test object试验对象 test site试验场地 quality test质量试验 new product test新产品试验 scientific research test科学研究试验 ac
12、cord with符合Common Automobile Termstrafficability trfikbiliti n 车辆通过性vehicle testc 汽车试验proving ground试验场complete vehicle test整车试验assembly test总成试验component test零部件试验dynamic property动力性ride comfort行驶舒适性engine power发动机功率transmission efficiency变速器效率indoor bench test室内台架试验outdoor road test室外道路试验proving ground test试验场试验road simulation test道路模拟试验remote parameter control远程数据控制
