外文翻譯--汽車(chē)懸架系統(tǒng)

1、<p><b>　　汽 車(chē) 懸 架</b></p><p>　　現(xiàn)代汽車(chē)中的懸架系統(tǒng)有兩種，一種是從動(dòng)懸架，另一種是主動(dòng)懸架。 </p><p>　　從動(dòng)懸架即傳統(tǒng)式的懸架，是由彈簧、減振器（減振筒）、導(dǎo)向機(jī)構(gòu)等組成，它的功能是減弱路面?zhèn)鹘o車(chē)身的沖擊力，衰減由沖擊力而引起的承載系統(tǒng)的振動(dòng)。其中彈簧主要起減緩沖擊力的作用，減振器的主要作用是衰減振動(dòng)。由于這種懸

2、架是由外力驅(qū)動(dòng)而起作用的，所以稱(chēng)為從動(dòng)懸架。 </p><p>　　而主動(dòng)懸架的控制環(huán)節(jié)中安裝了能夠產(chǎn)生抽動(dòng)的裝置，采用一種以力抑力的方式來(lái)抑制路面對(duì) </p><p>　　車(chē)身的沖擊力及車(chē)身的傾斜力。由于這種懸架能夠自行產(chǎn)生作用力，因此稱(chēng)為主動(dòng)懸架。 </p><p>　　主動(dòng)懸架是近十幾年發(fā)展起來(lái)的，由電腦控制的一種新型懸架，具備三個(gè)條件： </p>

3、<p>　　（1）具有能夠產(chǎn)生作用力的動(dòng)力源； </p><p>　　（2）執(zhí)行元件能夠傳遞這種作用力并能連續(xù)工作； </p><p>　?。?）具有多種傳感器并將有關(guān)數(shù)據(jù)集中到微電腦進(jìn)行運(yùn)算并決定控制方式。因此，主動(dòng)懸架匯集了力學(xué)和電子學(xué)的技術(shù)知識(shí)，是一種比較復(fù)雜的高技術(shù)裝置。 </p><p>　　例如裝置了主動(dòng)懸架的法國(guó)雪鐵龍桑蒂雅，該車(chē)懸架系統(tǒng)

4、的中樞是一個(gè)微電腦，懸架上有5 種 </p><p>　　傳感器，分別向微電腦傳送車(chē)速、前輪制動(dòng)壓力、踏動(dòng)油門(mén)踏板的速度、車(chē)身垂直方向的振幅及頻率、轉(zhuǎn)向盤(pán)角度及轉(zhuǎn)向速度等數(shù)據(jù)。電腦不斷接收這些數(shù)據(jù)并與預(yù)先設(shè)定的臨界值進(jìn)行比較，選擇相應(yīng)的懸架狀態(tài)。同時(shí)，微電腦獨(dú)立控制每一只車(chē)輪上的執(zhí)行元件，通過(guò)控制減振器內(nèi)油壓的變化產(chǎn)生抽動(dòng)，從而能在任何時(shí)候、任何車(chē)輪上產(chǎn)生符合要求的懸架運(yùn)動(dòng)。因此，桑蒂雅橋車(chē)備有多種駕駛模式選擇，

5、駕車(chē)者只要扳動(dòng)位于副儀表板上的“正?！被颉斑\(yùn)動(dòng)”按鈕，轎車(chē)就會(huì)自動(dòng)設(shè)置在最佳的懸架狀態(tài)，以求最好的舒適性能。 </p><p>　　另外，主動(dòng)懸架具有控制車(chē)身運(yùn)動(dòng)的功能。當(dāng)汽車(chē)制動(dòng)或拐彎時(shí)的慣性引起彈簧變形時(shí)，主動(dòng)懸架會(huì)產(chǎn)生一個(gè)與慣力相對(duì)抗的力，減少車(chē)身位置的變化。例如德國(guó)奔馳2000 款CL 型跑車(chē)，當(dāng)車(chē)輛拐彎時(shí)懸架傳感器會(huì)立即檢測(cè)出車(chē)身的傾斜和橫向加速度，電腦根據(jù)傳感器的信息，與預(yù)先設(shè)定的臨界值進(jìn)行比較計(jì)算，

6、立即確定在什么位置上將多大的負(fù)載加到懸架上，使車(chē)身的傾斜減到最小。 </p><p>　　汽車(chē)主動(dòng)懸架—液壓和空氣式</p><p>　　從控制力的角度劃分，懸架可分為被動(dòng)懸架，半主動(dòng)懸架和主動(dòng)懸架。目前，大多數(shù)汽車(chē)的懸架系統(tǒng)裝有彈簧和減振器，懸架系統(tǒng)內(nèi)無(wú)能源供給裝置，其彈性和阻尼不能隨外部工況變化，因此稱(chēng)這種懸架是被動(dòng)懸架。</p><p>　　主動(dòng)懸架有作為直接

7、力發(fā)生器的動(dòng)作器，可以根據(jù)輸入與輸出進(jìn)行最優(yōu)的反饋控制，使懸架有最好的減震特性，以提高汽車(chē)的平順性和操縱穩(wěn)定性。它由彈性元件C和一個(gè)力發(fā)生器Fe組成。 </p><p>　　半主動(dòng)懸架可看作由可變特性的彈簧和減振器組成的懸架系統(tǒng)，雖然它不能隨外界的輸入進(jìn)行最優(yōu)的控制和調(diào)節(jié)，但它可按存儲(chǔ)在計(jì)算機(jī)的各種條件下最優(yōu)彈簧和減振器的優(yōu)化參數(shù)指令來(lái)調(diào)節(jié)彈簧的剛度和減振器的阻尼狀態(tài)。它由彈性元件C 和一個(gè)一個(gè)阻尼系數(shù)能在較大范

8、圍內(nèi)調(diào)節(jié)的阻尼器組成。 </p><p>　　電子技術(shù)控制汽車(chē)懸架系統(tǒng)主要由（車(chē)高、轉(zhuǎn)向角、加速度、路況預(yù)測(cè)）傳感器、電子控制ECU、懸架控制的執(zhí)行器等組成。系統(tǒng)的控制功能通常有以下三個(gè)： </p><p>　　1 車(chē)高調(diào)整 當(dāng)汽車(chē)在起伏不平的路面行駛時(shí)，可以使車(chē)身抬高，以便于通過(guò)；在良好路面高速行駛時(shí)，可以降低車(chē)身，以減少空氣助力，提高操縱穩(wěn)定性。 </p>&

9、lt;p>　　2 阻尼力控制 用來(lái)提高汽車(chē)的操縱穩(wěn)定性，在急轉(zhuǎn)彎、急加速和緊急制動(dòng)情況下，可以抑制車(chē)身姿態(tài)的變化。 </p><p>　　3 彈簧剛度控制 改變彈簧剛度，使懸架滿(mǎn)足運(yùn)動(dòng)或舒適的要求。采用主動(dòng)式懸架后，汽車(chē)對(duì)側(cè)傾、俯仰、橫擺跳動(dòng)和車(chē)身的控制都能更加迅速、精確，汽車(chē)高速行駛和轉(zhuǎn)彎的穩(wěn)定性提高，車(chē)身側(cè)傾減少。制動(dòng)時(shí)車(chē)身前俯小，啟動(dòng)和急加速可減少后仰。即使在壞路面，車(chē)身的跳動(dòng)也較少，輪胎對(duì)地面的

10、附著力提高。 </p><p>　　一.主動(dòng)式液壓懸架 </p><p>　　電子控制的主動(dòng)式液壓懸架能根據(jù)懸架的質(zhì)量和加速度等，利用液壓部件主動(dòng)地控制汽車(chē)的振動(dòng)。主動(dòng)式液壓懸架在轎車(chē)上的布置如圖所示，在汽車(chē)重心附近安裝有縱向、橫向加速度和橫擺陀螺儀傳感器，用來(lái)采集車(chē)身振動(dòng)、車(chē)輪跳動(dòng)、車(chē)身高度和傾斜狀態(tài)等信號(hào)，這些信號(hào)被輸入到控制單元ECU，ECU 根據(jù)輸入信號(hào)和預(yù)先設(shè)定的程序發(fā)出控制指令

11、，控制伺服電機(jī)并操縱前后四個(gè)執(zhí)行油缸工作。 </p><p>　　二.主動(dòng)式空氣懸架 </p><p>　　在電子控制的主動(dòng)式空氣懸架系統(tǒng)中，微機(jī)根據(jù)傳感器送來(lái)的信號(hào)和駕駛員給予的控制模式經(jīng)過(guò)運(yùn)算分析后向懸架發(fā)出指令，懸架可以根據(jù)微機(jī)給出的指令改變懸架的剛度和阻尼系數(shù)，是車(chē)身在行駛過(guò)程中保持良好的穩(wěn)定性能，并且將車(chē)身的振動(dòng)響應(yīng)控制在允許的范圍內(nèi)。一般說(shuō)來(lái)，主動(dòng)式空氣懸架的控制內(nèi)容包括車(chē)身高

12、度、減振器衰減力、彈簧彈性系數(shù)等三項(xiàng)； </p><p>　?。避?chē)高的控制；分標(biāo)準(zhǔn)、升高和只升高后輪三種工作狀態(tài)； </p><p>　?。矞p震器的衰減力控制分低、中、高三檔； </p><p>　?。晨諝鈴椈傻膹椥韵禂?shù)分軟、硬兩檔。 </p><p>　　空氣懸架電子控制系統(tǒng)的工作原理；用空氣壓縮機(jī)形成壓縮空氣，并將壓縮空氣送給彈簧和減震器

13、的空氣室中，以此來(lái)改變車(chē)輛的高度。在前輪和后輪的附近設(shè)有車(chē)高傳感器，按車(chē)高傳感器的輸出信號(hào)，微機(jī)判斷出車(chē)輛高度，再控制壓縮機(jī)和排氣閥，使彈簧壓縮或伸長(zhǎng)，從而控制車(chē)輛高度。 </p><p>　　在減震器內(nèi)設(shè)有電動(dòng)機(jī)，電動(dòng)機(jī)受微機(jī)的信號(hào)控制。利用電動(dòng)機(jī)可以改變通氣孔的大小，從而改變了衰減力的大小。 </p><p>　　具體說(shuō)來(lái)，在汽車(chē)儀表板上有空氣懸架系統(tǒng)的開(kāi)關(guān)，利用開(kāi)關(guān)可以形成6 種不同

14、的工作方式。</p><p><b>　　自動(dòng)變速器 </b></p><p>　　自動(dòng)變速器的選擋桿相當(dāng)于手動(dòng)變速器的變速桿，一般有以下幾個(gè)擋位：P(停車(chē))、R(倒擋)、N(空擋)、D(前進(jìn))、S(or2，即為2 速擋)、L(or1，即為1 速擋)。這幾個(gè)擋位的正確使用對(duì)于駕駛自動(dòng)變速器汽車(chē)的人來(lái)說(shuō)尤其重要，下面就讓我們一起來(lái)熟悉一下自動(dòng)變速器各擋位的使用要領(lǐng)。 &

15、lt;/p><p>　　●P(停車(chē)擋)的使用 </p><p>　　發(fā)動(dòng)機(jī)運(yùn)轉(zhuǎn)時(shí)只要選擋桿在行駛位置上，自動(dòng)變速器汽車(chē)就很容易地行走。而停放時(shí)，選擋桿必須扳入P 位，從而通過(guò)變速器內(nèi)部的停車(chē)制動(dòng)裝置將輸出軸鎖住，并拉緊手制動(dòng)，防止汽車(chē)移動(dòng)。 </p><p>　　●R(倒擋)的使用 </p><p>　　R位為倒擋，使用中要切記，自動(dòng)變速器汽車(chē)不

16、像手動(dòng)變速器汽車(chē)那樣能夠使用半聯(lián)動(dòng)，故在倒車(chē)時(shí)要特別注意加速踏板的控制。 </p><p>　　●N(空擋)的使用 </p><p>　　N位相當(dāng)于空擋，可在起動(dòng)時(shí)或拖車(chē)時(shí)使用。在等待信號(hào)或堵車(chē)時(shí)常常將選擋桿保持在D位，同時(shí)踩下制動(dòng)。若時(shí)間很短，這樣做是允許的，但若停止時(shí)間長(zhǎng)時(shí)最好換入N 位，并拉緊手制動(dòng)。因?yàn)檫x擋桿在行駛位置上，自動(dòng)變速器汽車(chē)一般都有微弱的行駛趨勢(shì)，長(zhǎng)時(shí)間踩住制動(dòng)等于強(qiáng)行

17、制止這種趨勢(shì)，使得變速器油溫升高，油液容易變質(zhì)。尤其在空調(diào)器工作、發(fā)動(dòng)機(jī)怠速較高的情況下更為不利。有些駕駛員為了節(jié)油，在高速行駛或下坡時(shí)將選擋桿扳到N 位滑行，這很容易燒壞變速器，因?yàn)檫@時(shí)變速器輸出軸轉(zhuǎn)速很高，而發(fā)動(dòng)機(jī)卻在怠速運(yùn)轉(zhuǎn)，油泵供油不足，潤(rùn)滑狀況惡化，易燒壞變速器。 </p><p>　　●D(前進(jìn)擋)的使用 </p><p>　　正常行駛時(shí)將選擋桿放在D 位，汽車(chē)可在1～4 擋(

18、或3 擋)之間自動(dòng)換擋。D位是最常用的行駛位置。需要掌握的是：由于自動(dòng)變速器是根據(jù)油門(mén)大小與車(chē)速高低來(lái)確定擋位的，所以加速踏板操作方法不同，換擋時(shí)的車(chē)速也不相同。如果起步時(shí)迅速將加速踏板踩下，升擋晚，加速能力強(qiáng)，到一定車(chē)速后，再將加速踏板很快松開(kāi)，汽車(chē)就能立即升擋，這樣發(fā)動(dòng)機(jī)噪聲小，舒適性好。 </p><p>　　D 位的另一個(gè)特點(diǎn)是強(qiáng)制低擋，便于高速時(shí)超車(chē)，在D 位行駛中迅速將加速踏板踩到底，接通強(qiáng)制低擋開(kāi)關(guān)

19、就能自動(dòng)減擋，汽車(chē)很快加速，超車(chē)之后松開(kāi)加速踏板又可自動(dòng)升擋。 </p><p>　　●S、L 位低擋的使用 </p><p>　　自動(dòng)變速器在S 位或L 位上處于低擋范圍，可以在坡道等情況下使用。下坡時(shí)換入S位或L位能充分利用發(fā)動(dòng)機(jī)制動(dòng)，避免車(chē)輪制動(dòng)器過(guò)熱，導(dǎo)致制動(dòng)效能下降。但是從D位換入S位或L位時(shí)，車(chē)速不能高于相應(yīng)的升擋車(chē)速，否則發(fā)動(dòng)機(jī)會(huì)強(qiáng)烈振動(dòng)，使變速器油溫急劇上升，甚至?xí)p壞變速

20、器。 </p><p>　　另外在雨霧天氣時(shí)，若路面附著條件差，可以換入S位或L位，固定在某一低擋行駛，不要使用能自動(dòng)換擋的位置，以免汽車(chē)打滑。同時(shí)必須牢記，打滑時(shí)可將選擋桿推入N位，切斷發(fā)動(dòng)機(jī)的動(dòng)力，以保證行車(chē)安全。</p><p>　　Suspension</p><p>　　The modern of in the car has two kinds of s

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37、ve a spring coil for can seeing making from variable characteristic with machine that reducing and flapping the a system constitutes, although it can't proceed the superior control with regulate with the outsider im

38、portation, it can press saving under every kind of term of the calculator superior spring coil with reduce to flap the machine excellent to turn the parameter instruction to regulate the spring coil just a the appearance

39、 of for with reducing flapping machine.It from flexibi</p><p>　　The electronics technique control car a system is main from( the car is high and change direction the Cape, acceleration, road the estimate) s

40、pread to feel the machine, electronics control ECU, of control of carry out machine etc. constitute.The control function of the system usually has below three: 1 the car is high to adjust to be the car at rise and fall W

41、hen the uneven road drive, can make carriage jacked up, in order to in pass;When the good road mades good time, can lower the carriage, to</p><p>　　Dint controls is used to increase to manipulate the stabili

42、ty automotively, in the flashback curved, nasty accelerates to move with the urgent system circumstance next, can rr is to the side , horizontal put the flutter with the control of the carriage can more quick, precision,

43、 the car mades good time with the stability exaltation of the turn, carriage side reduce.The ex- in carriage is small when system move, starting with nasty accelerate can after reducing .Even in the bad road, the flutt

44、e</p><p>　　One.The active type liquid presses of </p><p>　　The active type liquid that electronics control presses a quantity for can according to of with acceleration etc., making use of the

45、liquid press the parts actively automotive vibration in control.The active type liquid presses a the of arrange to is sepress the variety of the carriage. </p><p>　　3 spring coil just a control changes sp

46、ring coil just degree, make a contented sport or comfortable request. </p><p>　　Adopt an empress, cahown as diagram on the car, having in the nearby gearing in center of gravity in car lengthways, horizonta

47、l acceleration with horizontal put the top preads to feel machine, use to collect the carriage the vibration, the car wheel jumps about, carriage high degree with tilt to one side appearance etc. signal, these signalses

48、is inputed control unit ECU, ECU according to input signal with in advance the procedure that set up issues to control the instruction, controling the ser</p><p>　　In electronics control of active type air a

49、 system, tiny machine according to spread to feel the machine changeses to an instruction for issuing the instruction, the of can give according to the tiny machine after delivering of the signal with the control mode t

50、hat pilot give has been carries to calculate the analysis of just degree with the coefficient of , is a carriage within the scope of drives to keeps in the process good and stable function, and respond to the vibration

51、of the carriage t</p><p>　　1 high control in car;Cent standard, go up with only after going up a three kinds of works appearance; </p><p>　　2 reduce the that shake the machine reduce the din

52、t control the cent low, inside, high three file; </p><p>　　3 the cent of flexibility coefficient of air spring coilses are soft and hard two file. </p><p>　　The air an electronics controls

53、 the work principle of the system;Use the air compressor formation compressed air, combine to give the compressed air to spring coil with the air room that reducing and shaking the machine inside, changes with this the h

54、igh degree of the vehicle.Fore a neighborhood for with empress round establishes the car the high spreading feels machine, press car the high spreading the exportation signal that feels the machine, the tiny machine judg

55、es the vehicle the high degre</p><p>　　Establish the electric motor in reduce shook machine, the electric motor suffers the signal control of the tiny machine.Making use of the electric motor can change the

56、size of the air hole . Say in a specific way, switch in last free spirit in instrument panel in car a system, make use of the switch can become 6 kinds of different works method. </p><p>　　The automatic gea

57、rbox </p><p>　　The automatic gearbox chooses to block the pole the equal to moving the stick shift of the gearbox, having generally below several blocks:P( parking), R( pour to block), N( get empty to block

58、), D( go forward), S( or2, namely for 2 block soon), L.( or1, namely for 1 block soon)This several an usage for blocking a right usages coming driver the automatic gearbox is automotive of person to say particularly imp

59、ortant, underneath let us very much familiar with once automatic gearbox eachly blocking</p><p>　　The usage of the P ( the parking blocks) </p><p>　　The launches the luck turns as long as choose

60、 to block the pole in driving the position, automatic gearbox car run about very easily.But park, choose to block the pole must pull into of P, from but pass the internal parking system in gearbox moves the device will o

61、utput the stalk lock lives, combining to tense the hand system move, preventing the car ambulation. </p><p>　　The usage of the R( pour to block)</p><p>　　R a control for is pouring blocking, usi

62、ng inside wanting slicing recording, automatic gearbox car unlike moving gearbox car so can using half moving, so while reversing the car wanting special attention accelerating pedal. </p><p>　　The usage of

63、the N( get empty to block) </p><p>　　The N is equal to get empty to block, can while starting or hour of trailer usage.At wait for the signal or block up the car will often often choose to block the pole kee

64、ps in the of D, trampling at the same time the next system move.If time is very short, do like this is an admission of, but if stop the time long time had better change into of N, combine to tense the hand system moves.B

65、ecause choose to block the pole in driving the position, the automatic gearbox car has generally and all to dr</p><p>　　The usage of the D( go forward to block) </p><p>　　Will choose to block wh

66、en is normal to drive the pole put in the of D, car can at 1 4 block( or 3 block) its change to block automatically.The of D drives the position most in common usely.What demand control is:Because the automatic gearbox

67、is soon high and low with car to come to make sure to block according to the accelerator size a, so accelerate the pedal operation method is different, changing to block the hour of the car is soon too not same alike.If

68、start hour quick accelerate the pedal</p><p>　　The another characteristics of the D is a compulsory low blocking, easy to high speed the hour overtakes a car, will accelerate quickly in of D drove the pedal

69、trample after all, connect the compulsory low fend off the pass and then can reduce to block automatically, the car accelerates very quickly, after overtaking a car loosen to open the pedal of acceleration to can rise to

70、 block automatically again. </p><p>　　The usage of the S, of L low the usage that block </p><p>　　The automatic gearbox in in is placed in the low blocking the scope on of S or of Ls, can usage

71、under an etc. circumstance.It change to can make use of to launch well into of S or of Ls the mechanism move, avoiding the car wheel system move the machine over hot, cause the system move the effect descent while going

72、 down slope.But change into from the of D of S or of L, car soon can't higher than rise to block the car homologously soon, otherwise strong vibration in opportunity to launch, make ge</p><p>　　The is an

73、other at rain fog weather hour, if the road adheres to the term bad, can change into a position for or of L, fixing at somely first lowly blocking driving, doing not use can automatically changing blocking, in order to p

74、revent the car beats slippery.Must keep firmly in mind at the same time, beat the slippery hour can will choose to block the pole pushes into a motive for, cutting off launching machine, toing guarantee a car the safety.