【正文】 路面上的制動(dòng)距離還可進(jìn)一步縮短。 在這個(gè)系統(tǒng)中，電子控制裝置可根據(jù)行駛阻力的變化，自動(dòng)調(diào)節(jié)發(fā)動(dòng)機(jī)油門(mén)開(kāi)度，使行駛車(chē)速保持恒定。發(fā)生意外時(shí)，它能有效防止二次碰撞，并且其緩沖作用能吸收大量動(dòng)能，減輕駕乘人員的傷害程度。以上整個(gè)過(guò)程幾乎都是發(fā)生在一瞬間的，駕乘者完全處于被動(dòng)的局面，在這種情況下，被動(dòng)的依靠輔助乘員保護(hù)系統(tǒng)是唯一的選擇。這些對(duì)提高汽車(chē)行駛的安全性能都有著非常重要的貢獻(xiàn) 三、汽車(chē)主動(dòng)安全新技術(shù) 1． Eye Car 技 Eye Car 技術(shù)可使每位駕駛員的眼睛處于同樣的相對(duì)高度上，保證提供一個(gè)重慶交通大學(xué)二 O 一二 屆畢業(yè)設(shè)計(jì)（ 論文） 其技術(shù)特點(diǎn)是： （ 1）安裝在汽車(chē)兩側(cè)的前向攝像系統(tǒng)，使駕駛員能夠繞過(guò)大型車(chē)輛提前看到隱蔽處的汽車(chē)或行人。 四、汽車(chē)被動(dòng)安全新技術(shù) 1．未來(lái)安全氣囊 （ 1）可充氣式幕系統(tǒng)。如重慶交通大學(xué)二 O 一二 屆畢業(yè)設(shè)計(jì)（ 論文） 而吸能方向管柱的特點(diǎn)是將整體式轉(zhuǎn)向管柱一分為二，分為上轉(zhuǎn)向管柱和下轉(zhuǎn)向管柱兩部分；里面的轉(zhuǎn)向軸也分為兩截，它們之間用外向節(jié)機(jī)構(gòu)連接。轉(zhuǎn)向管柱由空心管和轉(zhuǎn)向軸承構(gòu)成。頭部支撐系統(tǒng)通稱(chēng)為頭枕，車(chē)輛中座椅所配合的頭枕，其實(shí)不只是為了舒適 ,更重要的是為了安全。廣角能力。所以，這一改進(jìn)對(duì)于汽車(chē)的安全性具有重要的意義。如果此時(shí)裝在轉(zhuǎn)向盤(pán)或儀表板內(nèi)的氣囊充氣彈出，它就可以保護(hù)乘員減少其與車(chē)內(nèi)物相碰的可能性，更均勻的分散頭、胸的碰撞力，吸收乘員的運(yùn)動(dòng)能量，從而起到補(bǔ)充安全帶效果的作用。因此，千萬(wàn)不要因?yàn)檐?chē)中配備了安全氣囊而感到高枕無(wú)憂，只有系好了安全帶才能減輕或消除車(chē)禍的發(fā)生。一 直處在關(guān)注行車(chē)安全最前沿的通用汽車(chē)公司，通過(guò)分析大量意外事故后發(fā)現(xiàn)：汽車(chē)安全帶不但能使人保住性命，更能在超過(guò)半數(shù)的事故中減低甚至消除駕車(chē)者、乘車(chē)者受傷的機(jī)會(huì)。這種系統(tǒng)使用另外的車(chē)速傳感器，將車(chē)速信號(hào)輸入發(fā)動(dòng)機(jī)控制微機(jī)，由微機(jī)控制真空系統(tǒng)工作。若在同一彎道上，因后輪趨于側(cè)向滑出而轉(zhuǎn)向過(guò)多， VDC 系統(tǒng)即采取適當(dāng)制動(dòng)右前輪的辦法，維持車(chē)輛的穩(wěn)定行駛。例如當(dāng)汽車(chē)轉(zhuǎn)向行駛時(shí)，不可避免地受到側(cè)向和縱向力的作用，只有當(dāng)?shù)孛婺軌蛱峁┏浞值膫?cè)向和縱向力時(shí)，駕駛員才能控制住車(chē)輛。 2． ASR 驅(qū)動(dòng)防滑控制系統(tǒng) ABS 用于防止汽車(chē)制動(dòng)過(guò)程中車(chē)輪抱死，將車(chē)輪的滑移率控制在理想的范圍內(nèi)，以縮短制動(dòng)距離，提高汽車(chē)制動(dòng)時(shí)方向穩(wěn)定性和轉(zhuǎn)向操縱性， 從而提高汽車(chē)行駛的安全性。 譯文 column under two parts。 they cooperate with each other to ride the play the auxiliary protective effect. Seat belt usage in under the condition of the crew, balloon help reduce chest, head and facial injuries in the seriousness of the collision. When car collision happened before, the first is the car to stop motion, car under the action of inertial force crews to go forward with the original speed still sport. Not wearing a seatbelt crews will and steering dish, front windscreen together, so it can be severely hurt。s fully released request, is the car of active safety driving a new milestone. 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 steering the inadequate capacity tend to slip out of the 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 frontright wheel failure, maintain the stability of the vehicle driving. In extreme cases, VDC system can also take reduce engine to reduce the power output, and to reduce the speed of the demand side adhesion ability to maintain the stability of the vehicle driving. Adopt VDC system, automobile in folio pavement or corner of pavement braking distance still can further reduce. 4． CCS cars cruise control system 重慶交通大學(xué)二 O 一二 屆畢業(yè)設(shè)計(jì)（ 論文） 譯文 Automotive safety systems and technology research and analysis One． Automobile active security technology 1. ABS braking system Antlock Braking System (Braking System, lock do by ABS puters as ABS), hydraulic device, the wheel speed sensors, brake hydraulic pipeline and electrical wiring etc. Their structures are shown below. ABS tasseled for the car in various driving conditions braking performance and brake safety particularly important, especially is emergency braking, can make full use of the peak between tire and road surface adhesion properties, improve performance and reduce automobile fight sideslip braking distance, give full play to the braking performance, but also increase the automobile braking process control. So as to reduce the possibility of car accidents. No installation ABS car, if the driving force trample brake pedal, wheel will rapidly lower speed, and finally wheels stop turning, but body because of inertia remains forward sliding. This phenomenon was at the wheel and pavement occur between larger slip, appear this kind of situation, the car tires of automobile lateral spreads almost disappear, so poor force will appear the following phenomena: (1) Steering stability fall: the steering wheel is ineffective, vehicle tail manipulation of curl, serious when vehicle circles or appear folding phenomenon。s burden. The electronic cruise control system which is shown in figure 2. Two. Automobile passive safety technology 1. Seat belt Car seat belt is a safety device, it can in car collision or sharp turn, make crew to keep its original position as possible without mobile and rotation, avoid collision with incar hard parts caused damage. Seat belts and