汽車制動系統(tǒng)(機(jī)械、車輛工程英文文獻(xiàn)及翻譯)-wenkub.com
2024-12-01 21:41 本頁面
【正文】 存儲器低壓存儲器，它在低壓下存儲油液，直到回流泵打開，油液流經(jīng)制動輪缸進(jìn)入制動主缸。后部的制動輪缸受到一個電磁閥控制，并依照 的原理進(jìn)行調(diào)節(jié)。調(diào)節(jié)裝置能保持或減小來自制動主缸的液壓，而裝置本身是不能啟用制動器的。信號的處理起到轉(zhuǎn)換器的作用，它是將接受的脈沖電信號處理轉(zhuǎn)換成數(shù)值，為編輯做準(zhǔn)備。傳感器本身是纏繞電磁核的電線圈，電磁核才線圈的周圍產(chǎn)生磁場。這種系統(tǒng)基本組成包括車輪轉(zhuǎn)速傳感器，電子控制裝置和調(diào)節(jié)裝置。首先，當(dāng)制動系統(tǒng)的壓力上升到使輪胎抱死或即將抱死的時候，防抱死制動系統(tǒng)才會啟動；當(dāng)制動系統(tǒng)在正常情況下，防抱死制動系統(tǒng)停止運(yùn)作。每個車輪都會有一個傳感器，電子控制裝置能連續(xù)檢測來自車輪傳感器傳來的脈沖電信號，并將它們處理轉(zhuǎn)換成和輪速成正比的數(shù)值；如果其 中一個傳感器的信號不斷下降，那么這就表明了相應(yīng)的輪胎趨于抱死，這時電子控制裝置向該車輪的制動器發(fā)出降低壓力的指令。近來，幾個汽車制造商引進(jìn)了更為復(fù)雜的防抱死系統(tǒng)。在行車制動器失靈的情況下，手閘必須能停住車。駐車制動器正常是當(dāng)車已經(jīng)停止時使用的。制動液的壓力施加到輪缸活塞以使制動片被壓到制動鼓或制動盤上。固定卡鉗型盤式制動器既可以使用兩個活塞有可以使用四個活塞。這時制動片與制動盤產(chǎn)生的摩擦使汽車減速、停止，出現(xiàn)了制動行為。要釋放制動器時，司機(jī)松開踏板，回拉彈簧拉回制動片，這樣車輪會自由轉(zhuǎn)動。制動鼓固定在輪轂上。你不可以用銅管來修理制動系。在車的行進(jìn)中上下來 回運(yùn)動。保持制動液裝置充滿制動液除非你需要維修它，制動液必須保持很高的沸點(diǎn)。 制動液的裝置位于主缸的頂部。 在最基本的制動系統(tǒng)中，有一個制動主缸，這個主缸內(nèi)部填充制動液，并包含兩個部分，每個部分里都有一個活塞，兩個活塞都連接駕駛室里的制動踏板。 典型的制動系統(tǒng)布置有前后盤式，前盤后鼓式，各個車輪上的制動器通過一套管路系統(tǒng)連接到制動主缸上 。 制動系統(tǒng)是由下列基本的成分組成 :位于發(fā)動機(jī)罩下方，而且直接地被連接到制動踏板的 “制動主缸 ”把駕駛員腳的機(jī)械力轉(zhuǎn)變?yōu)橐簤毫Α? 行車制動器起到減速、停車、或保持車輛正常行駛。制動器實(shí)際就是能量轉(zhuǎn)換裝置，它將汽車的動能（動量）轉(zhuǎn)化成熱能（熱量）。Automobile Brake System汽車制動系統(tǒng) The braking system is the most important system in cars. If the brakes fail, the result can be disastrous. Brakes are actually energy conversion devices, which convert the kiic energy (momentum) of the vehicle into thermal energy (heat).When stepping on the brakes, the driver mands a stopping force ten times as powerful as the force that puts the car in motion. The braking system can exert thousands of pounds of pressure on each of the four brakes. Two plete independent braking systems are used on the car. They are the service brake and the parking brake. The service brake acts to slow, stop, or hold the vehicle during normal driving. They are footoperated by the driver depressing and releasing the brake pedal. The primary purpose of the brake is to hold the vehicle stationary while it is unattended. The parking brake is mechanically operated by when a separate parking brake foot pedal or hand lever is set. The brake system is posed of the following basic ponents: the “master cylinder” which is located under the hood, and is directly connected to the brake pedal, converts driver foot’s mechanical pressure into hydraulic pressure. Steel “brake lines” and flexible “brake hoses” connect the master cylinder to the “slave cylinders” located at each wheel. Brake fluid, specially designed to work in extreme conditions, fills the system. “Shoes” and “pads” are pushed by the slave cylinders to contact the “drums” and “rotors” thus causing drag, which (hopefully) slows the car. The typical brake system consists of disk brakes in front and either disk or drum brakes in the rear connected by a system of tubes and hoses that link the brake at each wheel to the master cylinder (Figure). Basically, all car brakes are friction brakes. When the driver applies the brake, the control device forces brake shoes, or pads, against the rotating brake drum or disks at wheel. Friction between the shoes or pads and the drums or disks then slows or stops the wheel so that the car is braked. In most modern brake sys
研究報告相關(guān)推薦
鄂ICP備17016276號-1