汽車制動(dòng)系統(tǒng)(機(jī)械、車輛工程英文文獻(xiàn)及翻譯)-預(yù)覽頁(yè)
【正文】 steering knuckle and its gear wheel is pressed onto the stub axle that rotates with the wheel. The rear sensor mounts the rear suspension member and its gear wheel is pressed onto the axle. The sensor itself is a winding with a magic core. The core creates a magic field around the winding, and as the teeth of the gear wheel move through this field, an alternating current is induced in the winding. The control unit monitors the rate o change in this frequency to determine impending brake lockup. The control unit’s function can be divided into three parts: signal processing, logic and safety circuitry. The signal processing section is the converter that receives the alternating current signals form the speed sensors and converts them into digital form for the logic section. The logic section then analyzes the digitized signals to calculate any brake pressure changes needed. If impending lockup is sensed, the logic section sends mands to the modulator assembly. Modulator assembly The hydraulic modulator assembly regulates pressure to the wheel brakes when it receives mands from the control utuit. The modulator assembly can maintain or reduce pressure over the level it receives from the master cylinder, it also can never apply the brakes by itself. The modulator assembly consists of three highspeed electric solenoid valves, two fluid reservoirs and a turn delivery pump equipped with inlet and outlet check valves. The modulator electrical connector and controlling relays are concealed under a plastic cover of the assembly. Each front wheel is served by electric solenoid valve modulated independently by the control unit. The rear brakes are served by a single solenoid valve and modulated together using the selectlow principle. During antibraking system operation, the control unit cycles the solenoid valves to either hold or release pressure the brake lines. When pressure is released from the brake lines during antibraking operation, it is routed to a fluid reservoir. There is one reservoir for the front brake circuit. The reservoirs are lowpressure accumulators that store fluid under slight spring pressure until the return delivery pump can return the fluid through the brake lines to the master cylinder. 汽車制動(dòng)系統(tǒng) 制動(dòng)系統(tǒng)是汽車中最重要的系統(tǒng)。制動(dòng)系統(tǒng)能對(duì)四個(gè)剎車系統(tǒng)中的每個(gè)施加數(shù)千磅的力。駐車制動(dòng)器的主要作用就是當(dāng)車內(nèi)無人的時(shí)候，汽車能夠保持靜止。 制動(dòng)液 , 特別地設(shè)計(jì)為的是工作在極端的情況，填充在系統(tǒng)中。當(dāng)司機(jī)剎車時(shí)，控制裝置會(huì)迫使制動(dòng)蹄，或制動(dòng)襯片與車輪處的旋轉(zhuǎn)的制動(dòng)鼓或制動(dòng)盤接觸。在輪缸中，制動(dòng)液推動(dòng)制動(dòng)蹄或制動(dòng)襯片與旋轉(zhuǎn)的制動(dòng)鼓或制動(dòng)盤接觸。隨著制動(dòng)踏板的運(yùn)動(dòng)制動(dòng)液就會(huì)緩慢的下降，正常情況下是這樣的。 制動(dòng)液通過一系列的管路從主缸到達(dá)各車輪。如果鋼線需要修理的話，最好的方法就是代替這條線。 鼓式制動(dòng)器包括制動(dòng)鼓，一個(gè)輪缸，回拉彈簧，一個(gè)制動(dòng)底版，兩個(gè)帶摩擦層的制動(dòng)蹄。要使用制動(dòng)器時(shí)，司機(jī)就要踩下踏板，這時(shí)輪缸擴(kuò)大制動(dòng)片，對(duì)其施加壓力，是制動(dòng)蹄觸碰制動(dòng)鼓。制動(dòng)片是靠擠住旋轉(zhuǎn)的制動(dòng)盤來停住汽車。盤式制動(dòng)器主要有三種，即：浮動(dòng)卡鉗型、固定卡鉗型和滑動(dòng)卡鉗型。在機(jī)械杠桿適合所有的汽車的駐車制動(dòng)器中使用。 駐動(dòng)制動(dòng)器的主要作用是車內(nèi)無人時(shí)，使汽車靜止不動(dòng)?，F(xiàn)在，即使離開汽車也不用害怕它會(huì)自己滑走。 防抱死制動(dòng)系統(tǒng)是使汽車制動(dòng)更安全、更方便的制動(dòng)裝置，它既有調(diào)節(jié)制動(dòng)系統(tǒng)的壓力來防止車輪被完全抱死的功能，又有防止輪胎在滑的路面上行駛或緊急停車時(shí)的滑動(dòng)。同時(shí)，一些權(quán)威人士預(yù)測(cè)這種系統(tǒng)會(huì)提高汽車的安全性。這種循環(huán)像司機(jī)一樣調(diào)節(jié)制動(dòng)器，但它的速度更快，達(dá)到了每秒循環(huán)數(shù)次。但控制板上的指示燈亮起提醒司機(jī)系統(tǒng)出 現(xiàn)問題。前面的傳感器安在輪轂上，齒圈安在輪網(wǎng)上。電子控制裝置會(huì)監(jiān)測(cè)這種變化，然后判斷車輪是否即將抱死。如果檢測(cè)出車輪即將抱死，電控裝置就會(huì)計(jì)算出數(shù)值向調(diào)節(jié)裝置發(fā)出指令。調(diào)節(jié)裝置中的電子連接器隱藏在塑料蓋下。當(dāng)壓力釋放時(shí)，它會(huì)釋放到液
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