车辆工程汽车外文翻译外文文献英文文献汽车安全系统技术研究分析.docx

1、车辆工程汽车外文翻译外文文献英文文献汽车安全系统技术研究分析Automotive safety systems and technologyresearch and analysisAbstract : auto parts of good and bad will directly affect the safety of the car, are directly related to the peoples life safety and security in wealth. This article mainly from the cars active safety technol

2、ogy and passive safety technology two aspects elaborated the importance of car parts, and how to improve the safety of the car.Key words : automobile, active safety technology, passive safety technologyAs traffic tools of the modernization and absolute number increase sharply, traffic accidents are

3、also increasing. Car accident has become severe global social issues. Undoubtedly, advanced auto safety facilities are the driving safety indispensable safeguard. So, we should start, from technology to research and development of high performance, high safety car, also want to strengthen the regula

4、r inspection in cars, so timely maintenance investigation, make cars often in good technical status, so as to improve the safety performance of the car.Here we introduced active safety technology and automobile car passive safety technology. Auto safety is according to the traffic accident happened

5、before and after the classified. One is in a traffic accident take safety measures, especially before immediately will produce risk condition, drivers manipulate the steering wheel avoid or emergency brake to avoid traffic accidents. In the car, drive in usually to ensure the basic manipulation stab

6、ility, drivers on the surrounding environment and to ensure the visual recognition sex drive the car itself, developed the basic performance ant-lock braking system (ABS), prevent slippery drive system (ASR), active suspension, power steering and four-wheel drive (4WD), four-wheel steering (4WS), li

7、ghting system, wiper, the rearview mirror, prevent from rear-end collision car alarm system and laser radar, etc. These security devices and technology, called active safety system, can also be called preventive security system. On the other hand, in order to reduce traffic accidents and company by

8、personnel directly suffer degree, ensure company take staff and pedestria n safety, says the security for passive safety, can also be called con flict safety. When after the accident, in order to prevent disasters, including prevent the expansion of fire and make crew from traffic accident can extri

9、cate the security devices and systems, called preve nt disaster expa nd security system.One. Automobile active security tech no logy1.ABS braki ng systemAnt-lock Braking System (Braking System, lock do by ABS computers as ABS), hydraulic device, the wheel speed sen sors, brake hydraulic pipeli ne an

10、d electrical wiring etc. Their structures are show n below.ABS tasseledfor the car in various driving conditions braking performance and brake safety particularly importa nt, especially is emerge ncy brak ing, can make full use of the peak between tire and road surface adhesion properties, improve p

11、erforma nce and reduce automobile fight sideslip brak ing dista nce, give full play to the braki ng performa nce, but also in crease the automobile brak ing process con trol. So as to reduce the possibility of car accide nts.No in stallati on ABS car, if the driv ing force trample brake pedal, wheel

12、 will rapidly lower speed, and fin ally wheels stop tur ning, but body because of in ertia rema ins forward slidi ng. This phe nomenon was at the wheel and paveme nt occur between larger slip, appear this kind of situation, the car tires of automobile lateral spreads almost disappear, so poor force

13、will appear the following phe nomena:(1)Steeri ng stability fall: the steeri ng wheel is in effective, vehicle tail manipulation of curl, serious when vehicle circles or appear folding phenomenon;(2)Handling fall: manipulate the steering wheel and short of steering requireme nts;(3)Braki ng dista nc

14、e exte nded: more tha n gen eral brak ing dista nce.So, we can imagi ne to have in stalled ABS system of the car safety is very importa nt.2.the ASR drive torque control systemABS are used to prevent car braking process wheel lock, will wheel sliding rate control in ideal range, so as to shorten the

15、 braking distanee, improve automobile brak ing directi on stability and steeri ng con trol, so as to improve the safety of the car. Alo ng with the in crease of vehicle performa nce requireme nts, not only in braking process required to prevent wheel lock, and asked the driver to preve nt drive roll

16、er skati ng turn in the process, maki ng cars in the directi on stability, driv ing process steeri ng con trol ability and accelerati on performa nce, so are improved by the car drive torque steering system ASR (Accelerations Regulation) Slip. ASR is the perfect complement and ABS ASR, but most alon

17、e is set with ABS comb ined together, com mon ly used ABS/ASR says, called an tiskid con trol system.ASR is mainly used to preve nt car in the begi nning, accelerate the wheels, guarantee slip in the car accelerated rate and improve the stability in bad pavement drive attached conditions. It makes n

18、o difference speed in the car lock ice roads and muddy road started and to improve its capacity, also can preve nt high in speed by tur ning cars glid ing paveme nt and rear lateral spreads phe nomenon.Anyhow, prevent the wheel because ASR slip, can maximize the engine driv ing mome nt of cars had e

19、no ugh, en sure the Ion gitud inal force, lateral force and manipulation of power, make cars in starting, steering and accelerate the process, in gliding and muddy road, in a mountain area downhill process can steadily driving, guarantees the safety, reducing tire wear and fuel consumption, and impr

20、oves the car driving capability.3.VDC systemABS/ASR system successfully solves the brake and the car when driven directi on stability problem, but cannot solve the vehicle steeri ng stability problem driv ing directi on. For example whe n steeri ng road, in evitably by lateral and Ion gitud inal for

21、ce, only local surface can provide full lateral and Ion gitud inal force, the pilot can control vehicles. If the ground adhesion ability lower lateral, will damage cars driv ing ability predeterm ined directi on. Rainy days cars driv ing, often high-speed steering lateral sliding out, it is the grou

22、nd becauseof insufficient lateral adhesion ability. To resolve the issue, and developed countries automobile in dustry rece ntly in ABS/ASR system on the basis of the developme nt of dyn amic Con trol system (into car Dyn amics Con trol, the abbreviati on VDC Vehicle). The system of the car brake, d

23、riving, suspension,steering, engine and so on various main assembly control system in function, structure organic ground comprehensive together, can make cars in all kinds of bad working conditions, such as ice road paveme nt, commut ing, river bend paveme nt and took evasive acti on moving line, br

24、aking and acceleration and the downhill for different conditions, such as bearing, differe nt type pressure and differe nt levels of type wear all have good directi on stability, to show the best driving performanee. VDC applications, in braking, acceleration and steering aspectsof drivers fully rel

25、eased request, is the car of active safety driv ing a new milest one.VDC of steering control system is mainly by driving for each wheel brake control and engine power output control to realize. For example, if the car turn left front wheel for steeri ng the in adequate capacity tend to slip out of t

26、he corner, VDC system can measure imminent, just know lateral spreads left rear brake adopt appropriate measures. If at the same corner, because rear wheel tend to slip out of favor of lateral overmuch, VDC system is proper braking to front-right wheel failure, maintain the stability of the vehicle

27、driving. In extreme cases, VDC system can also take reduce engine to reduce the power output, and to reduce the speed of the dema nd side adhesi on ability to mai nta in the stability of the vehicle driv ing. Adopt VDC system, automobile in folio paveme nt or corner of paveme nt brak ing dista nee s

28、till can further reduce.4.CCS cars cruise con trol systemAuto cruise Con trol System (Cruiser Con trol System, abbreviati on for CCS) is can make automobile work in engine favorable speed range, reduce drivers driving manipulate labor intensity, improve the driving comfort the automatic dri ving dev

29、ice.Car cruising system (CCS) role is required by the driver: after a no rmally-closed switch, no speed on the accelerator pedal can automatically keep the speed, make the vehicle with the fixed speed. Using this device, when on the highway after a long time, the driver driving not have to control t

30、he accelerator pedal, reduce fatigue, while reduc ing unn ecessary speed cha nge, can reduce save fuel.Auto cruise control system is the earliest development of the automotive electronic control system. This system USES another speed sensor, will speed sig nal in put engine con trol microcomputer, b

31、y microcomputer con trol vacuum system work. This system can make use of the server, speed con trol switch lever and brake pedal on vacuum lift switches etc, its function and basic system the same.In this system, electronic control device can accord change of driving resista nee, automatic regulati

32、on engine throttle An gle, make the speed con sta nt. Such not only reduce unn ecessary speed cha nge, which saves fuel, also reduced the drivers burden. The electronic cruise control system which is shown in figure 2.Two. Automobile passive safety tech no logy1.Seat beltCar seat belt is a safety de

33、vice, it can in car collisi on or sharp tur n, make crew to keep its original position as possible without mobile and rotation, avoid collision with in-car hard parts caused damage. Seat belts and airbags, as modern cars are safety devices, but the long history of the former, popularize the scope.The seem in gly simple seat bel