Benang 314mpg radikal VW XL1 mendedahkan

Hibrid diesel-elektrik dua tempat duduk yang baru mempunyai pelepasan CO2 hanya 21g/km dan ekonomi dunia sebenar 127mpg. Ini adalah VWs radikal, ringan, VW XL1 yang menjanjikan ekonomi yang diperakui EU sebanyak 314mpg dan pelepasan CO2 21g/km apabila ia masuk ke dalam pengeluaran terhad pada hujung tahun ini mengikuti pertunjukan motor Genevanya yang didedahkan bulan depan.
Dikuasakan oleh enjin TDI dua silinder 47bhp yang disokong oleh motor elektrik 27bhp dan 5. Pek bateri 5kWh, kereta dua tempat duduk itu didakwa mempunyai penarafan Cd hanya 0. 189.
Upshot adalah bahawa plug-in hibrid XL1 mungkin kereta pengeluaran yang paling menjimatkan dan paling aerodinamik yang cekap sepanjang masa.
Pertama kali ditunjukkan sebagai konsep berjalan dua tahun yang lalu, XL1 bertubuh karbonfibre sedang dibina di kilang Karmann milik VW di Osnabrück, bersama kabriolet VW Golf dan Porsche Boxster yang baru.
Berat hanya 795kg, XL1 adalah kira-kira 3. 8m panjang dan 1. 66m lebar, yang bermaksud ia hanya sedikit lebih kecil daripada VW Polo supermini. Walau bagaimanapun, ia hanya 1. 15m tinggi, kira-kira 129mm lebih rendah daripada Boxster. VW berkata, XL1 mempunyai kelajuan tertingginya terhad kepada 99. 4mph, tetapi ia boleh mencecah 62mph hanya dalam 12. 7sec. Ia menggunakan penggantungan depan wishbone berganda aluminium, penggantungan pautan separa jejak di bahagian belakang, bar anti-roll plastik bertetulang karbonfibre dan cakera brek seramik.
XL1 boleh melakukan perjalanan selama 31 batu hanya pada kuasa bateri sahaja dan mempunyai julat yang dituntut 310 batu pada gabungan kuasa diesel dan bateri, walaupun mempunyai tangki bahan api 10 liter kecil.

Pengiraan kasar bahawa XL1 mampu dunia sebenar 127mpg dalam keadaan yang ideal, produk kereta 795kg kerb berat, badan yang sangat licin dan angin kedengaran dan rintangan rendah tayar sempit pada roda magnesium, yang berukuran hanya 115/80 di bahagian depan dan 145/5. Panduan untuk XL1s adalah VW adalah ia hanya 8. 3bhp belasah pelayaran 62mph yang mantap.
Sistem hibrid motor elektrik dan klac khususnya memakai enjin antara diesel dua silinder 800cc dan kotak gear DSG tujuh-kelajuan XL1s. Pepasang litium-ion Daging di lagu dan boleh dicas semula apabila keretaa brek dan pantai.
Dalam mod elektrik tulen, enjin klac perjudian dan motor sedut. Enjin balik ke ke hayat melalui apa yang VW dipanggil nadi bermula, di mana motor elektrik berputar up kelajuan tinggi dan digandingkan kembali ke enjin, enjin terbiar kelajuan pusingan yang diperlukan untuk yang bermula yang lancar.
Langkah-langkah perkembangan berat badan yang berlainan tabik sopan bertetulang karbonfibre untuk badan, kulit yang hanya 1. 2mm tebal. Struktur struktur struktur aluminium depan dan belakang dan jalan rasuk di pintu, untuk menyerap daya impak.
Cermin depan hanya 3. 2mm tebal. VW berkata pembinaan XL1s pecah dalam drivetrain 227kg (termasuk batang), gear 153kg berjalan, sistem elektrik 105kg, 80kg peralatan di atas kapal, tempat tempat duduk dan instrumen, dan badan yang beratnya 230kg. Malah papan pemuka diperbuat daripada bahan gentian kayu ringan yang hanya 1. 4mm tebal.
Larian pengeluaran pertama akan menjadi 50 kereta, yang merupakan homologated bagi dijual di Eropah. Selepas itu, sumber berkata XL1 akan bina untuk program, walaupun VW masih belum memberi petunjuk mengenai harga yang mungkin.

Revolutionary new two-seater diesel-electric hybrid has CO2 emissions of just 21g/km and real world economy of 127mpg. This is VWs radical, lightweight, VW XL1 which promises an EU-certified economy of 314mpg and 21g/km CO2 emissions when it goes into limited production later this year follow its Geneva motor show reveal next month.
Powered by a 47bhp two-cylinder 800cc TDI engine backed up by a 27bhp electric motor and 5. 5kWh battery pack, the two-seat car is claimed to have a Cd rating of just 0. 189.
The upshot is that the plug-in hybrid XL1 is probably the most economical and most aerodynamically efficient production car of all time.
First shown as a running concept two years ago, the carbonfibre-bodied XL1 is being built at the VW-owned Karmann factory in Osnabrück, alongside the VW Golf cabriolet and the new Porsche Boxster.
Weighing just 795kg, the XL1 is some 3. 8m long and 1. 66m wide, which means it is only marginally smaller than a VW Polo supermini. However, it is only 1. 15m high, some 129mm lower than a Boxster. VW says the XL1 has its top speed limited to 99. 4mph, but that it can hit 62mph in just 12. 7sec. It uses aluminium double wishbone front suspension, a semi-trailing link suspension at the rear, carbonfibre reinforced plastic anti-roll bars and ceramic brake discs.
The XL1 can travel for 31 miles just on battery power alone and has a claimed range of 310 miles on diesel and battery power combined, despite having a tiny 10-litre fuel tank.
Attachment 5330
Rough calculations suggest that the XL1 is capable of a real-world 127mpg in ideal conditions, a product of the cars 795kg kerb weight, its very slippery body and wind-cheating and low resistance narrow tyres on magnesium wheels, which measure just 115/80 at the front and 145/55 at the rear. A guide to the XL1s efficiency is that VW claims it requires just 8. 3bhp to be able to maintain a steady 62mph cruise.
The hybrid systems electric motor and its dedicated clutch are fitted between the 800cc two-cylinder diesel engine and the XL1s seven-speed DSG gearbox. The lithium-ion battery is mounted in the nose of the car and can be recharged when the car is braking and coasting.
In pure electric mode, the engines clutch disengages and the motor shuts down. The engine is brought back to life via what VW calls pulse starting, where the electric motor spins up to high speed and is coupled back to the engine, accelerating the idled engine to the revolving speed required for smooth starting.
The extreme weight-saving measures include using carbonfibre reinforced plastic for the body, the skin of which is just 1. 2mm thick. Aluminium crash structures are used front and rear and as crash beams in the doors, to absorb impact forces.
The windscreen is just 3. 2mm thick. VW says the XL1s construction breaks down into a 227kg drivetrain (including the battery), 153kg running gear, 105kg electrical system, 80kg of on-board equipment, such as seats and instruments, and a body that weighs 230kg. Even the dashboard is made from a lightweight wood fibre material thats just 1. 4mm thick.
The first production run will be of 50 cars, which are fully homologated for sale in Europe. After that, sources say the XL1 will be built to meet demand, though VW has yet to give any clue about the likely price.