Volkswagen Formula XL1 debuts in Qatar
Volkswagen has Authorizedly opened a Formula XL1 notion, forward of the debut during the Qatar Motor Show.
Essentially a ultimate in the prolonged line of “one-liter” cars, the XL1 is the harmony of record as well as fit engineering. How efficient, you ask? It has an average fuel consumption of 0.9 l/100 km (261.3 mpg US) as well as CO2 emissions of 24 g/km.
To get these record-shattering numbers, a XL1 is versed with the 47 hp (35 kW / 48 PS) 800cc two-cylinder TDI engine as well as a 27 hp (20 kW / 27 PS) electric engine which draws energy from a lithium-ion battery. Connected to a seven-speed dual-clutch transmission, a 795 kg (1,753 lb) notion accelerates from 0 to 100 km/h in 11.9 seconds, prior to attack an electronically singular top speed of 160 km/h (99 mph). More importantly, the car can be driven in EV mode for a total of 35 kilometers (21.7 miles).
In terms of styling, the XL1 features an aerodynamic pattern that incorporates LED lights, forward-swinging doors, as well as carbon fiber reinforced polymer (CFRP) body panels which were shaped using VW’s modernized Resin Transfer Molding (aRTM) routine. This, total with a co essential element monocoque chassis, ensures the automobile is strong as well as lightweight.
Inside, all looks flattering required (aka production ready as XL1 drops the L1’s tandem seating arrangement for a some-more traditional side-by-side setup. Despite this practical shift, a foot usually holds 100 liters (3.5 cubic feet) of luggage so don’t go on any shopping sprees.
While the XL1 is technically the notion, Volkswagen referred to “manufacture” sufficient to ensure that there’s no mistaking a one-liter car will be offered in a near future.
Check out a press release for additional Inform
Source: Volkswagen
Press Release()
Vision becomes reality — Volkswagen’s “Formula XL1″: Volkswagen XL1 prototype consumes only 0.9 l/100 km!
XL1’s world entrance at a Qatar Motor Show (26 – 29 January)Two-seat XL1 brings prophesy of the 1-litre automobile tighten to manufacture maturity
Wolfsburg / Doha – Future mobility is one of the many sensitive topics of our time. The key subject here: Just how much could a appetite expenditure of cars be reduced if all the stops were pulled out for efficiency? There is right away an answer to this subject, as well as Volkswagen is delivering it in the form of a new XL1. Combined fuel expenditure: 0.9 l/100 km. No alternative hybrid automobile powered by an electric motor / inner combustion engine combination is more fuel efficient. The antecedent will be unveiled in the world entrance during a Qatar Motor Show (26 – 29 January).
To the point
Conceptually, a XL1 represents a third evolutionary stage of Volkswagen’s 1-litre car strategy. When a brand new millennium was ushered in, Prof. Dr. Ferdinand Pi?ch, who is today Chairman of a Supervisory Board of Volkswagen AG, formulated a visionary goal of bringing to a marketplace the production automobile that was practical for everyday make use of with the fuel expenditure of 1.0 litre per 100 km. In the brand new XL1, Volkswagen is demonstrating that this goal is right away inside of reach.
The new Volkswagen XL1 attains a CO2 emissions value of 24 g/km, interjection to the combination of lightweight construction (monocoque as well as add-on tools done of co fibre), really low aerodynamic drag (Cd 0.186) as well as the plug-in hybrid scheme – consisting of a dual cylinder TDI engine (35 kW / 48 PS), E-motor (20 kW / 27 PS), 7-speed dual-clutch delivery (DSG) and lithium-ion battery. The results: with fuel consumption of 0.9 l/100 km, the brand new Volkswagen XL1 only emits 24 g/km CO2. Since it is designed as the plug-in hybrid, a XL1 antecedent can additionally be driven for up to 35 kilometres in pristine electric mode, i.e. with zero emissions at indicate of use. The battery can be charged from the conventional domicile electric opening. Naturally, battery regeneration is additionally in use to redeem energy while negligence down as well as store as most of it as probable in a battery for re-use. In this case, a electric engine acts as an electric generator of electric power.
Despite a very tall levels of potency, developers were means to pattern a physique layout which offers greater everyday practicality, incorporating side by side seating rather than a tandem arrangement seen in both a initial 1-litre automobile presented in 2002 as well as the L1 presented in 2009. In a new XL1, wing doors have it simpler to enter as well as exit the car. Further swell has been done by production body parts from carbon twine reinforced polymer parts (CFRP), the technique used in Formula 1 automobile building a whole. Once again, Volkswagen has successfully achieved significant reductions in manufacture costs- an critical step brazen to make viable a limited manufacture run of the XL1. Background: together with suppliers, Volkswagen has developed as well as patented a brand new system for CFRP production in what is well known as a aRTM process (advanced Resin Transfer Moulding).
The many efficient automobile in a universe
The brand new XL1 shows the way forward for extreme saving vehicles and clean technologies. It additionally demonstrates which such cars can also be fun. The feeling when moving the XL1 is indeed energetic – not based on pristine energy, rather than upon the pristine efficiency. Two examples: 1) To travel at the consistent speed of 100 km/h, the prototype only needs 6.2 kW / 8.4 PS – a fraction of the opening of today’s cars (Golf 1.6 TDI with 77 kW as well as 7-speed DSG: 13.2 kW / 17.9 PS). 2) In electric mode, a XL1 needs reduction than 0.1 kWh (82 Wh/km) to complete the a single kilometre moving course. These are record values.
When a full energy of the hybrid scheme is engaged, the Volkswagen antecedent accelerates from 0 to 100 km/h in only 11.9 seconds; the tip speed is 160 km/h (electronically singular. Yet these numbers alone do not discuss it a total story: Since a XL1 weighs only 795 kg, the drive system has an easy job of moving the automobile. When full power is needed, the electric engine, that can broach 100 Newton metres of torque from a delay, functions as the upholder to await the TDI engine (120 Newton metres torque). Together, the TDI and E-motor broach a maximum torque of 140 Newton metres in boosting mode.
Plug-in hybrid notion
With a brand new XL1, Volkswagen is implementing the plug-in hybrid notion, that utilises a fuel fit record of a usual rail turbodiesel (TDI) and a dual clutch transmission (DSG). The TDI generates its settled limit energy of 35 kW / 48 PS from only 0.8 litre displacement. The complete hybrid section is housed on top of a vehicle’s driven back spindle. The tangible hybrid module with electric engine as well as clutch is positioned between the TDI and a 7-speed DSG; this procedure was integrated in a DSG delivery box in place of the usual flywheel. The integrated lithium-ion battery supplies a E-motor with appetite. The tall voltage appetite flow from as well as to the battery or E-motor is managed by a power wiring, which operates at 220 Volts. The XL1’s physique electrical scheme is supplied with a required 12 Volts through a DC/DC converter.
Interplay of E-motor and TDI engine: The E-motor supports a TDI in acceleration (boosting), though as described it can also energy the XL1 prototype upon the own for a stretch of up to 35 km. In this mode, a TDI is decoupled from a drivetrain by disengaging a clutch, as well as it is close down. Meanwhile, the clutch on a gearbox side stays closed, so the DSG is entirely intent with the electric engine. Important: The driver can select to drive a XL1 in pristine electric mode (provided that the battery is amply charged). As soon as a electric mode symbol on a instrument panel is pressed, the car is propelled exclusively by electrical energy. Restarting of a TDI is the really well-spoken and comfortable process: In what is known as “beat starting” of a TDI engine while moving, the electric motor’s rotor is sped up and is really fast joined to a engine clutch. This accelerates a TDI to a required speed as well as starts it. The complete process takes place but any jolts, so a driver hardly notices a TDI engine restarting.
When a XL1 is braked, the E-motor operates as the generator of electric power which utilises a braking appetite to charge the battery (battery regeneration). In sure handling conditions a load shared in between the TDI engine and the electric engine can be shifted so which the turbodiesel is handling at its many enlightened efficiency level. The gears of a automatically changeable 7-speed DSG have been also regularly selected with a target of minimising appetite usage. The engine controller regulates all appetite upsurge and drive government tasks, taking into comment a energy demanded during any since moment by a driver. Some of the parameters used to realize a best thrust mode for the given conditions have been: accelerator pedal position as well as engine load, as good as a appetite supply and brew of kinetic as well as electrical energy during any given time.
Two-cylinder TDI uses mass production record: The 0.8 litre TDI (35 kW / 48 PS) was subsequent from the 1.6 litre TDI, that drives such cars as a Golf and Passat. The 0.8 TDI exhibits a same interpretation as the 1.6-litre TDI usual rail engine in conditions of cylinder spacing (88 mm), cylinder gimlet (79.5 mm) as well as cadence (80.5 mm). In further, a XL1’s two-cylinder as well as a mass produced four cylinder share key inner engine facilities for shortening emissions. They embody special piston recesses for mixed injection and individual course of a particular injection jets.
The glorious, well-spoken using properties of the usual rail engines were eliminated to the dual cylinder engine. inside of further, the balancer missile that is driven by a crankshaft branch during a same speed optimises smooth engine using.
Meanwhile, the TDI’s aluminium crankcase was constructed to achieve high rigidity as well as pointing, which in turn leads to very low attrition waste. With a goal of reducing emissions, exhaust gas recirculation as well as an burning catalytic converter as good as a diesel motor fuel particulate filter have been used. Equipped in this approach, a 0.8 TDI already fulfils a limits of a Euro-6 emissions standard.
Also written for potency is a vehicle’s cooling system. Engine government usually cools a TDI by activating an outwardly driven electric water pump when engine handling conditions require it. This cooling scheme includes an automatically tranquil air intake system during the front of the vehicle to revoke cooling scheme draw towards. This thermal government plan also contributes towards marked down fuel consumption. A second electric h2o pump, which is also used usually as indispensable, circulates a apart lower heat coolant loop to cold the starter generator of electric power and power electronics.
CFRP physique is the technical magnum opus
The development team made unusual strides in conceptualizing the CFRP physique – in conditions of the lightweight building a whole as good as the aerodynamics. A comparison to the Golf illustrates only how innovative the body notion of the new XL1 is:
The draw towards fellow of a rarely successful Golf is very good for a compact category: Cd (0.312) x A (frontal area 2.22 m2) equals the sum draw towards figure of 0.693 m2 (Cd.A) providing this car with benchmark aerodynamic certification in the category. Meanwhile, a XL1 exceeds this performance with the Cd value of 0.186 and the frontal area of 1.50 m2. The product of these two parameters yields the total draw towards, or Cd.A value of 0.277 m2 which is 2.5 times lower than that of a Golf.
Design for the brand new era: The brand new XL1 is 3,888 mm long, 1,665 mm far-reaching as well as only 1,156 mm high. These have been extreme measure. The Polo has a identical length (3,970 mm) and breadth (1,682 m), but it is significantly taller (1,462 mm). The tallness of the brand new XL1 is about a same as which of the Lamborghini Gallardo Spyder (1,184 mm). So, it is easy to visualize only how spectacular such a Volkswagen would crop up on a highway – as long and far-reaching as a Polo, though with the low form similar to the Lamborghini.
The wing doors of a new XL1 have been additionally reminiscent of a high-end sports car. They have been hinged during two points: low upon a A-pillars as well as just on top of a windscreen in a roof tiles frame, so they do not only swivel upwards, but slightly forwards as good. The doors additionally magnify distant into the roof tiles. When they have been opened, they gratis up an exceptionally vast amount of entrance as well as exit space.
Visually, a new XL1 additionally adopts a styling lines of a L1 presented in 2009; however, a new prototype has the more dynamic coming thanks to the greater breadth. The design of a entire physique was uncompromisingly subjected to a laws of aerodynamics. In front, the brand new XL1 exhibits the biggest breadth; the car afterwards narrows towards a rear. Viewed from on top of, the form of the XL1 resembles that of the dolphin; generally during the rear, where a lines optimally heed to the air flow over the car physique to revoke a Volkswagen’s aerodynamic draw towards.
In side profile, a roofline reflects styling lines which trace an arc from the A-pillar behind to a rear. The back wheels are entirely covered to forestall air turmoil; the air flows here are additionally optimised by small Airbrakes in front of as well as at the back of the wheels. Observers will look for doorway mirrors in vain; replacing them upon a wing doors are tiny cameras which take upon the role of digital outward mirrors that send images of a surroundings at the back of a car to two displays inside a car.
The front finish of the new XL1 no longer exhibits the standard radiator grille; however, it still reflects the styling of the current Volkswagen “pattern DNA” with a rule of plane lines. Specifically, there is the black cross-stripe (in the area where there is no longer the radiator grille) that combines with the energy-efficient twin LED headlights to form the successive rope. The tangible air intake for cooling a TDI engine, battery as well as interior is located in a reduce front finish section and has electrically controlled louvres. The narrow spin indicators are additionally written in LED record; these form an “L” figure that plumb follows the circle housing as well as horizontally the line underneath a headlights. This creates a front finish, that – although it is completely redesigned and extreme in the measure – can right away be recognized as the Volkswagen pattern by the purify lines.
At the back, the pattern takes an entirely brand new trail, reinterpreting a mark values of precision as well as extravagant. A brand new dimension of Volkswagen styling was combined here. Four characteristics have been distinct:
Once again, a dolphin physique form which narrows towards a rear with really precise trailing edges for perfect aerodynamics.
The coup?-shaped roofline but back windscreen. Merging into the roofline is the large back foot lid that covers a drive section and 100 litre luggage space.
A frame of red LEDs which frames a rear territory during the tip as well as upon a sides. Integrated in this LED frame are a reversing lights, rear lights, rear haze lights and stop lights.
A black diffuser, that exhibits scarcely seamless transitions to the utterly lonesome underbody.
Lightweight construction: more systematic than ever: Large sections of a brand new XL1’s body consist of co twine reinforced polymer (CFRP) – which is as lightweight as it is clever. Specifically, a monocoque with its somewhat equivalent seats for driver as well as newcomer as well as all exterior body parts are made of CFRP. The layers of co twine, which have been aligned with a directions of forces, are shaped into tools with an glue creosote scheme in a aRTM routine. This element brew produces an extremely permanent and lightweight combination. For a prolonged time, it was deliberate unfit to make a physique of CFRP, similar to that of a brand new XL1, to industrial standards. Nonetheless, Volkswagen successfully found the cost-effective approach to mass furnish CFRP tools in enough volumes as early as 2009 – in the horizon of the XL1 development plan. Now this routine has been serve perfected.
CFRP is the preferred material for a physique of the brand new XL1 since of the light weight. The XL1 prototype weighs only 795 kg. Of this figure, 227 kg represents a entire drive unit, 153 kg a using gear, 80 kg a apparatus (including a dual bucket seats) as well as 105 kg a electrical system. That leaves 230 kg, that is precisely a weight of the physique – constructed largely of CFRP – together with wing doors, front windscreen in thin-glass record as in motorsport and a rarely protected monocoque. A sum of 21.3 percent of a new XL1, or 169 kg, consists of CFRP. In further, Volkswagen uses lightweight metals for 22.5 percent of all tools (179 kg). Only 23.2 percent (184 kg) of a new XL1 is assembled from steel and iron materials. The rest of the weight is distributed between assorted alternative polymers (e.g. polycarbonate side windows), metals, healthy fibres, process materials and wiring.
Lightweight building a whole: safer than ever: The new XL1 is not usually lightweight, though very protected as good. As referred to, this is due in part to a make use of of CFRP as the material. In a character of Formula 1 race cars, the Volkswagen has a high-strength monocoque. In contrast to Formula 1, however, this reserve capsule is enclosed on top – for reserve. Depending upon a sort of collision, a load trail may be directed through a A- and B-pillars, cant rails and sills, all of that catch the impact appetite. Additional side members as well as crossmembers in the front as well as rear perfect the car’s pacifist safety.
Running rigging with ESP utilises high-tech materials
The running rigging is versed with anti-roll bars at a front and back as well as is characterised by lightweight construction with maximum reserve. In front, the dual wishbone suspension is used, whilst a semi-trailing couple scheme is employed during a rear. The front and back cessation are both very compress in construction as well as offer the high turn of driving joy. The running rigging components mountain directly to a CFRP monocoque in key areas.
Running gear weight has been marked down by the use of aluminium parts (including cessation components, brake calipers, dampers, steering rigging housing), CFRP (anti-roll bars), ceramics (brake discs) magnesium (wheels) as well as plastics (steering circle physique. Friction-optimised circle bearings as well as drive shafts, as good as an wholly brand new era of optimised low rolling insurgency tyres from MICHELIN (front: 115/80 R 15; back: 145/55 R 16), minister to the low energy consumption of a brand new XL1. Safety gains are realised by an anti-lock braking scheme (ABS) as well as electronic stabilisation programme (ESP). That is since sustainability but limit reserve would not unequivocally be the step forward. The brand new XL1 shows how these dual parameters can be brought into peace.
Technical interpretation of a new XL1
Body
Construction process
CFR monocoque and add-on tools
Length / breadth / tallness
3,888 mm / 1,665 mm / 1,156 mm
Wheelbase
2,224 mm
Drive system
Type
Plug-in hybrid, rear wheel drive
Internal combustion engine
TDI, dual cylinder, 800 cm3,
35 kW / 48 PS, 120 Nm
Electric engine
20 kW / 27 PS, 100 Nm
Gearbox
7-speed DSG
Battery
Lithium-ion
Emissions category
Euro 6
Weight data
Kerb weight
795 kg
Performance / fuel saving
V/max
160 km/h (electronically limited)
0-100 km/h
11.9 s
Fuel consump. (? NEDC)
0.9 l/100 km
CO2 emissions ((? NEDC)
24 g/km
Range: E-drive
35 km
Range: TDI + E-drive
approx. 550 km (10 litre fuel tank)
