【正文】
② Fuelrail pressure。(6)控制單元結(jié)構(gòu)。與燃燒同步,電控單元計(jì)算施加給壓力控制閥或計(jì)算模塊、噴油器和其他執(zhí)行機(jī)構(gòu)(如EGR閥,廢氣渦輪增壓器)的觸發(fā)信號(hào)。燃油噴射壓力在系統(tǒng)中基本可以自主選擇。同時(shí),流回油箱的燃油溫度與傳統(tǒng)高壓側(cè)控制的方法相比得到了降低。這種控制回路允許油軌壓力對(duì)不同工況(如負(fù)載變化時(shí))迅速做出反應(yīng)。將具有壓力的燃油提供給為噴射做好準(zhǔn)備的共軌系統(tǒng)的蓄能器。共軌系統(tǒng)的主要部分即噴油器。對(duì)柴油發(fā)動(dòng)機(jī)燃油噴射系統(tǒng)提出的要求也在不斷增加。re gonna get away with this? 是什么使你認(rèn)為你可以免受處罰?I wish they39。The changes will begin taking place as of 。Every spring the park is filled with lovers walking arm in 手挽手散步的戀人。1)I called Emi but there was no ,但是沒人接。1)2)3)4)5) came here searching for the American “美國夢(mèng)”。Did you get to play in the allstar game? 你入選全明星隊(duì)的比賽了嗎?He bloke the alltime record in the 100meter run at his 100米跑的歷史最高記錄。s all the same to you, I39。All in all I39。That last time I took a plane, I got 。t know what39。This soft drink has a nasty 。1)2)3)4)We39。1)2)Above all, I want everything :我要一切保持安定。第一篇:尿常規(guī)中英文對(duì)照糖(GLU)Negatlve尿膽紅素(BIL)Negatlve酮體(KET)Negatlve比重(SG)隱血(BLD、ERY)Negatlve 酸堿度(pH) 蛋白質(zhì)(PRO)Negatlve 尿膽原(URO)16umol/l尿亞硝酸鹽(NIT)Negatlve白細(xì)胞(WBC)Negatlve顏色(COL)。Tom thinks he39。re going to bring action against our 。I see your point, but don39。s wrong, but can feel it in the ,但我能隱隱約約感覺到。I hope there39。d say it39。d just as soon not ,我就不想去了。1)Working on cars isn39。Some foreigners bee Americanized while living in the 。1)2)3)4)5)Have you ever been to the Big Apple? 你去過紐約嗎?Do I sense an apple of discord between you two? 你問我有沒有感覺出你們兩人之間的不和,是嗎?Heather is the apple of my 。1)2)Coach Johnson has been around for 30 。Police are baffled as to the whereabouts of the 挫。d do away with these plicated tax 。更高的壓力、更快的開關(guān)時(shí)間,以及根據(jù)發(fā)動(dòng)機(jī)工況修訂的可變的流量速率曲線,已經(jīng)使得柴油發(fā)動(dòng)機(jī)具有良好的經(jīng)濟(jì)性、低污染、高動(dòng)力性,因此柴油發(fā)動(dòng)機(jī)甚至進(jìn)入了豪華高性能轎車領(lǐng)域。它們擁有一個(gè)可以快速開關(guān)噴嘴的執(zhí)行閥(電磁閥或壓電觸發(fā)器),這就允許對(duì)每個(gè)氣缸的噴射進(jìn)行控制。由發(fā)動(dòng)機(jī)驅(qū)動(dòng)的連續(xù)運(yùn)轉(zhuǎn)的高壓泵提供所需噴油的壓力。在第一批共軌系統(tǒng)中采用了對(duì)高壓側(cè)的控制。雙執(zhí)行器系統(tǒng)也是一種控制軌道壓力的方式,它通過計(jì)算單元對(duì)壓力進(jìn)行控制,并且通過壓力控制閥對(duì)高壓端進(jìn)行控制,因此同時(shí)具備高壓側(cè)控制與進(jìn)口端燃料供給控制的優(yōu)勢(shì)。目前最高燃油壓力為1600巴,將來會(huì)達(dá)到1800巴。噴油器的開關(guān)時(shí)間應(yīng)很短,采用優(yōu)化的高壓開關(guān)閥和專業(yè)的控制系統(tǒng)即可實(shí)現(xiàn)。由于發(fā)動(dòng)機(jī)控制單元通常最多有8個(gè)噴油器輸出口,所以超過八缸的發(fā)動(dòng)機(jī)需要兩個(gè)控制單元。③ Chargeair pressure:④ Intake air, coolant temperature, and fuel temperature: ⑤ Airmass intake: ⑥ Road speed, electronic control unit evaluates the input sync with bustion, it calculates the triggering signals for the pressurecontrol valve or the metering unit, the injectors, and the other actuators( EGR valve, exhaustgas turbocharger actuators, etc.).The injector switching times, which need to be short, are achievable using the optimized highpressure switching valves and a special control angle/time system pares injection timing, based on data from the crankshaft and camshaft sensors, with the engine state(time control).The electronic diesel control(EDC)permits a precise metering of the injected fuel addition, EDC offers the potential for additional functions that can improve engine response and basic functions involve the precise control of dieselfuel injection timing and fuel quantity at the reference this way, they ensure that the diesel engine has low consumption and smooth running openand closeloop control functions perform the tasks of reducing exhaustgas emissions and fuel consumption, or providing added safely and examples are:① Control of exhaustgas recirculation。in future this will rise to 180 monrail system allows a future reduction in exhaustgas emissions by introducing preinjection events or multiple in