Citroen's C5 Airscape concept, which was shown at the 2007 Frankfurt Motor Show, reveals the French carmaker's design thinking for its next executive cabriolet.
While it does have a history of building folding hardtops,this concept is the first sign that Citroen is re-establishing itself in this niche market.
The carbon-fibre roof,while one of the most interesting pieces of engineering on the car,sits alongside some other innovative technologies,including Snow Motion-a traction control system that provides a level of traction close to that of a four-wheel drive.
Other innovative technologies include Citroen's Urban Hybrid unit prevents noise and vibration when the engine stops and boosts engine torque when the same time,it is environmentally friendly.
The profile of C5 Airscape reflects Citroen's efforts to achieve optimal aerodynamic design. The roof line, particularly large windows, and tapering chrome-plated door handles underline the flowing lines of the body. The high waistline, the clearly marked wheel arches and 19-inch wheels all reveal the company's attempt to define the concept as a vehicle of status.
The design of the folding roof is of particular glazed upper part lets light flood into the cabin and , while this will not be carried through to production , the roof is made entirely of folds away automatically , without assistance, and without the driver having to open the upper part of the roof storage area in the boot . The roof is designed with a metal-look exterior and a textile lining to resemble a roof made of cancas from the imterior. This is in an attempt to combat the modern problem of ensuring the design of the emtire vehivle flows when viewed on the road whilst also having the fabric look roof that buyers of executive cabriolets still desire.
Under the bonnet,the 208bhp 2.7-litre V6 HDi diesel engine is coupled with a particulate filter and is able to run on bio-diesel. When taken with the Snow Motion traction control system and CO2 emissions , the concept boasts high levels of performance while also being environmentally sound.
With its reversible alternator-starter and super-capacitors able to temporarilly store large amounts of energy,the UrbanHybrid system delivers real benefits in terms of environmental protection, driving pleasure, acoustic comfort and vibration control.
In Drive mode , when this voncept vehicle is travelling at under 6kph and the driver's foot is on the brake pedal , the engine cuts out . For maximum drivealility, it starts again instantly and automatically as soon as the driver releases the brake pedal. When the car is at a standstill, fuel consumption is zero and CO2 emissions are around 24g over a combined cycle.
Further, the onboard network (air conditioning , radio , etc.) is powered by energy recovered during the deceleration and braking phases. This brings savings in fuel consumption and eliminates additional pollutant emissions.
Engine torque can be temporarily boosted , when overtaking for example , for a high-speed take-off.
When the car is at a standstill , the UrbanHybrid system prevents noise and vibration in the cabin , for the comfort of both passengers and passers-by.
The executive positioning of C5 Airscape is reflected by the presence of the engine and particulate filter.
參考譯文：
雪鐵龍公司的“C5鳥(niǎo)瞰”概念車，在2007年法蘭克福汽車展上亮相，展示了法國(guó)汽車制造商下一代的敞篷車的設(shè)計(jì)思想。
同時(shí)，它也擁有制造可折疊硬頂汽車的歷史，這款概念車是雪鐵龍公司恢復(fù)參與這個(gè)利基市場(chǎng)的第一個(gè)標(biāo)志。
碳纖維車頂，是車上最吸引人的一項(xiàng)工程之一，供其依傍一些其他創(chuàng)新技術(shù)，包括“冰雪運(yùn)動(dòng)”——一種牽引力控制系統(tǒng)，能提供一定程度的接近四輪驅(qū)動(dòng)的牽引。
其他創(chuàng)新技術(shù)包括雪鐵龍的“城市混合動(dòng)力”系統(tǒng)?？梢赃@個(gè)單元防止當(dāng)引擎停止時(shí)的噪音和振動(dòng)，需要時(shí)可以快速增強(qiáng)發(fā)動(dòng)機(jī)轉(zhuǎn)矩。同時(shí)，它很環(huán)保。
“C5鳥(niǎo)瞰”的輪廓反映了雪鐵龍公司為達(dá)到最佳的空氣動(dòng)力學(xué)設(shè)計(jì)做的努力。車頂?shù)木€條，尤其是大窗，和尖細(xì)的鍍鉻門把手突出了車體的流線。高高的腰身，清晰的標(biāo)有記號(hào)的輪拱和19英寸的車輪都展示了該公司對(duì)確定這款概念車作為交通工具所做的努力。
可折疊的車頂?shù)脑O(shè)計(jì)特別令人感興趣。光滑的上部讓亮晶晶的水流進(jìn)艙內(nèi)，但這將不會(huì)攜帶到產(chǎn)品中。車頂完全是由碳組成。它自動(dòng)折疊起來(lái)，而不需要任何幫助，也不需要司機(jī)去打開(kāi)存儲(chǔ)在行李箱中的車頂上部。車頂設(shè)計(jì)成金屬光澤外觀和紡織物里層，從里面看，像帆布做成的車頂。這是解決當(dāng)前問(wèn)題的一次努力嘗試，確保當(dāng)汽車在路上被人們看到時(shí)，擁有整車流線設(shè)計(jì)，同時(shí)，在里面看得時(shí)候擁有一個(gè)看起來(lái)像紡織物的車頂，這是敞篷汽車顧客一直的要求。
在車罩下面，208匹馬力、2.7升排量的V6高壓共軌直噴柴油發(fā)動(dòng)機(jī)（HDI）連接著一個(gè)微粒過(guò)濾器，并且能夠使用生物柴油。為了低的燃料消耗率和二氧化碳排放量，當(dāng)采取“冰雪運(yùn)動(dòng)”牽引力控制系統(tǒng)和“城市混合動(dòng)力”系統(tǒng)提供了實(shí)實(shí)在在的利益，在環(huán)保，駕駛樂(lè)趣，噪聲舒適性和振動(dòng)控制等多個(gè)方面。
在驅(qū)動(dòng)模式上，當(dāng)這款概念在行駛每小時(shí)6小時(shí)以下的速度或者當(dāng)司機(jī)的腳放在剎車踏板時(shí)，它能夠瞬時(shí)地自動(dòng)啟動(dòng)。當(dāng)汽車處于停頓狀態(tài)，燃料消耗是零，一個(gè)組合循環(huán)的二氧化碳排放量大約是24克。
此外，車載網(wǎng)絡(luò)（空調(diào)，收音機(jī)等），則使用減速、制動(dòng)時(shí)回收的能量，這樣能夠節(jié)省燃料和消除額外污染物的排放量。
發(fā)動(dòng)機(jī)轉(zhuǎn)矩可以瞬時(shí)的加大，以超車為例，一路高速騰飛。
當(dāng)汽車處于停頓狀態(tài)，“城市混合動(dòng)力“系統(tǒng)防止艙內(nèi)的噪音和振動(dòng)，給乘客和路人舒適的感受。
”C5鳥(niǎo)瞰“的執(zhí)行配置命令由工作中的發(fā)動(dòng)機(jī)和微粒過(guò)濾器反饋。
（轉(zhuǎn)載）
