2013 Audi R8 E Tron Concept
Audi R8 e-tron Concept
The Audi R8 e-tron demonstrates how excited and dynamical galvanising mobility can be. Its two galvanising motors, supplied with push by a gravid 48.6 kWh bombardment, grow 280 kW (380 hp) on with 820 Nm (604.80 lb-ft) of torsion. They speed the high-performance sports car from 0 to 100 km/h (62.14 mph) in 4.2 seconds and to a governed top upper of 200 km/h (124.27 mph). The shelling tutelage is near for an operational ambit of 215 kilometers (133.59 miles). Done the R8 e-tron, Audi has acquired encompassing expertness that bequeath profit its electrified product models.
The Audi R8 e-tron weighs in at 1,780 kilograms (3,924.23 lb). Its structure, including the incline sections, weighs good 199 kilograms (438.72 lb), 23 kilograms (50.71 lb) less than that of the R8 Coupé, which already sets the bar identical gamey with its aluminum-based ASF rationale (Audi Infinite Bod). Hither, Audi presents a new stagecoach in the exploitation of its extremist jackanapes expression engineering – a Multimaterial Infinite Frame which gravid parts made of carbon-fiber-reinforced polymer (CFRP) add-on the al chassis.
The CFRP components add 23 pct and the metallic parts 75 percentage of the bodyshell burthen; many-sided materials make the oddment. The advancing construction of the R8 e-tron is a greco-roman aluminium figure. The prevalent corporeal in the occupier cellphone is CFRP, with the bum exploitation a blending of both materials. The encouraging proboscis inclose of CRFP incorporates corrugated clang structures that entail the ass faculty can immerse cinque multiplication as practically get-up-and-go as an aluminium wicket construction. For the B-posts and behind bulkhead, a new sandwich conception reduces the burthen by 11.5 kilograms (25.35 lb).
2013 Audi R8 e-tron Concept
Every individual share of the outer peel, which is made virtually wholly of CFRP, is bespoke specifically to its situation and intent. In sure zones of the battlefront lid, e.g., thither are sevener layers of c character mat one on top of the otc. For the inside shells of the arse slope sections, on the otc manus, two layers incorporating nonwoven textile are passable.
The lithium-ion shelling, too, is a rumination of the maturation expertness of Audi – it was intentional and reinforced in-house. Bolted to the construction at 40 points, it functions as a support constituent that more doubles the inflexibility of the Multimaterial Distance Framing. The bombardment incorporates 530 prismatic flatcar cells. Winning the conformation of a T, the shelling is 235 centimeters (92.52 in) foresightful, 135 centimeters (53.15 in) all-inclusive and, restraint whole included, 71 centimeters (27.95 in) high-pitched. Roughly the burrow thither are two floors with cellphone modules one supra the over-the-counter; at the arse thither are quartet floors.
Plates 12 millimeters (0.47 in) blockheaded made from high-strength aluminium alloys fork the floors, patch forming the shelling’s load-bearing construction. The coolant circulates done constrict channels dig these, with a totality duration of various c meters. A hydraulic distributer maintains a incisively deliberate, smoothen stream service all cells as.
The shelling direction organisation is housed conjointly the high-octane switches and index fuses in the electrics box, which is situated on the grip bombardment. The independent tasks of the shelling direction organization ask monitoring the barrage organization’s condom and, if want be, pickings earmark measures to keep peril. It besides determines the guardianship position and functioning of the HV shelling and transmits the readings to the electrical motors’ driving controllers. To do that, the shelling direction scheme, e.g., accesses a battery-internal net of cellphone electronics, to dope cellphone voltages and temperatures. If the shelling’s tutelage story waterfall towards the limen of 15 percentage SOC (nation of commission), the control correspondingly reduces the number of wattage that can be interpreted from the shelling. In accession, the performance and prophylactic of the high-energy electric scheme are permanently monitored; in the upshot of an fortuity, the barrage is deactivated.
Thither are two options uncommitted for charging the barrage: A wax guardianship with 230-volt ac from the domesticated mains takes around xii hours. Charging with dc cuts the metre needed to less than one hr, contingent the attached freight. The driver can mastery and admonisher a wide-cut stove of functions and data remotely by smartphone app, including the bearing condition, the national heat and the ambit showing. This is a customized serve from Audi associate, which is besides ill-used in a identical exchangeable manikin in models such as the A3 Sportback e-tron.
The bombardment is likewise recharged patch on the route by substance of muscularity retrieval during slowdown phases. The driver chooses the stage of vigour convalescence in iii stages (summation devil-may-care) at paddles on the wheel. The value is peculiarly highschool when braking because capable astir 0.3 g the galvanizing motors unremarkably address lag on their own. Bey that the forepart brakes so gradually comes into gambol, and the electrical motors can convalesce capable 0.45 g. The freshly highly-developed electrical individual-wheel grip mastery (eASR) maintains first-class constancy when braking, and provides compelling grip when accelerating.
The two electrical motors on the behind axle of the Audi R8 e-tron enable electrical torsion vectoring, the targeted braking and speedup of mortal wheels for on-demand torsion dispersion during fasting cornering. Thanks to the break energizing of the galvanizing motors and their ad-lib demeanour, this procedure is extremely varying and fasting; in possibility the high-performance sports car can bracken one bicycle spell powering the former with highschool torsion.
With a summate of 280 kW and 820 Nm (604.80 lb-ft) usable most from off, the galvanising motors consecrate the Audi R8 e-tron telling execution. They mangonel it from 0 to 100 km/h (62.14 mph) in 4.2 seconds, and top amphetamine is circumscribed to 200 km/h (124.27 mph). In the test-bench cycles/second, one bombardment burster is sufficient for impulsive complete 215 kilometers (133.59 miles).
The galvanic motors reach concluded 95 pct efficiency complete a across-the-board grasp; undisciplined, they could rpm to 12,500 rpm, which would shuffling them able of a speeding of more 250 km/h (155.34 mph). Intentional as permanently emotional synchronic machines, they have a gamey operation and torsion denseness and can besides run expeditiously on a little measure of electricity. The stator temperature is controlled by a urine crown, and the air additionally cooled by an airflow. The single-stage erratic gears are corporate into the chilling circle.
Apiece galvanising drive is supplied by ramify mightiness electronics, which are too temperature-controlled. The beat inverters that exchange the shelling’s direct-current emf into alternating-current emf redefine the benchmark for constrict, jackanapes invention. The driveline’s mastery conception has designed-in redundance and satisfies the highest potential guard standards – the controllers of the might electronics pass with apiece over-the-counter and with the thrust controllers.
The frame of the Audi R8 e-tron, too, features new solutions. The volute springs are made from glass-fiber-reinforced polymer (GFRP) and consider solitary 1.2 and 1.3 kilograms (2.65 and 2.87 lb) severally, roughly 40 percentage less than brand springs. The ass cycle hubs are of bad ti, preservation 0.6 kilograms (1.32 lb) of weighting. For the anti-roll bar at the battlefront, bruise layers of CFRP configuration the subway, and the shanks are made from al – the factor weighs fair 2.5 kilograms (5.51 lb), a redemptive of 35 pct.
The Audi R8 e-tron is fitted with sizing 225/35 and 275/35 tires with optimized pealing impedance. From astir 50 km/h (31.07 mph), adjustable flap ending the apertures in the 19-inch wheels by motor strength; at low speeds they out-of-doors again. The participating sleek wheels clipping almost 0.02 off the cD rate.
The cycle brakes at the ass are electromechanical fucking brakes. Electrically actuated and controlled testis shag drives (“by cable”) crush the pads against the disks with lightning upper. Thither is a hydraulic brakes on the battlefront wheels, with two vacuity pumps generating the needful fond hoover. Hither, the disks are made from c character ceramic.
With a slant dispersion of 42:58, the R8 e-tron is weaponed with upright the rightfield foundation for sportsmanlike manipulation. The barrage is set betwixt the axles, with a low installed post that lowers the fomite centre of somberness. Racing driver Markus Winkelhock conventional two new records for electric-drive output vehicles with the R8 e-tron on the Nürburgring Northerly Cringle. He clocked up 8:09.099 transactions for the quickest i lap and 16:56.966 transactions for two sequent laps. For the i lap he swarm on sports tires sanctioned for a top amphetamine of 250 km/h (155.34 mph), and secondhand stock tires with a 200 km/h (124.27 mph) fastness limitation for the duplicate lap.
The Audi R8 e-tron looks exchangeable to the Audi R8 with gasolene locomotive, but the two fomite trunk versions ploughshare lone club usual parts. The draw coefficient of the electrically powered high-performance sports car is cD = 0.27. The absence of a burning locomotive, transmittance and exhaust permission a shine underbelly. At its behind a yearn, comparatively steeply raked diffusor deflects the air in a way that harmonizes with the airflow roughly the bottom. The pillager sharpness is somewhat higher than on the R8, and thither is no mollycoddler.
The electrically powered high-performance sports car does not deliver an oil tank, nor does it indigence aspiration air. Its slope air inlets at the figurehead likewise as the sideblades are plastered. Chilling air is just admitted done the depress portion of the Singleframe wicket. It is needed for the caloric direction. It flows done the onward construction in a channel and emerges again done an orifice in the forepart lid.
In the configuration of the multi-source warmth ticker, Audi has accomplished a high-performance caloric direction result for the R8 e-tron that leave be of big gain to futurity output models. The extremely composite arrangement keeps all-important driveline components – the shelling, the galvanizing motors, the transmissions and the powerfulness electronics – at the apotheosis temperature degree. The hotness that it draws off is put-upon to influence the midland clime. The effective use of electricity boosts the stove by capable 20 pct.
The estrus heart is based on the rule of the classical refrigerating circle. As a new constituent, it incorporates chillers (elements which cover estrus rally betwixt two fluids), the forepart capacitance/evaporator, electrically operated enlargement valves and an extra fastball comptroller in the air conditioning whole.
A oestrus coordinator highly-developed by Audi manages how the subsystems interact; contingent the position, it chooses the outflank from 43 variants. The heating ticker in the R8 e-tron, which besides operates severally, heats up the midland quicker than a schematic warming or air conditioning organisation. With an electric yield of 1 kW, it can ply capable 3 kW of heat functioning.
When the organisation operates as an air-source estrus heart, it draws heating from the ambient air. Passion is transferred to the refrigerating circumference via the movement capacitance, which therein case operates as an evaporator. At low remote temperatures the oestrus ticker makes use of the wasteland hotness from the galvanising motors and high-octane bombardment via limited evaporators, the chillers, which simultaneously nerveless the assemblies. The bullet restrainer ordinarily heats up the inside by transferring the thermic muscularity stored in the refrigerating to the sassy air worn in. An electrical PTC supplemental bullet alone cuts in if utmost heat swiftness is needed.
The internal of the Audi R8 e-tron features graceful CFRP surfaces, flaccid leather and Alcantara. The athletics pail seating get a CFRP flesh; apiece of them weighs sole 17.6 kilograms (38.80 lb). In the instrumentate clustering, LED strips betoken the coolant temperature and shelling mission layer. The expectant powermeter presents the layer of ability outturn and zip convalescence on a shell from 0 to 100 percentage. Thither is a 7‑edge coloration proctor for the driver info arrangement; collectively the MMI reminder it shows essential facts roughly galvanic drive. These admit superpower usance (in kW/h per 100 km), the elect muscularity recuperation floor, the quantity of push cured and an alive lifelike of the zip current. In summation, the ambit is displayed diagrammatically in the seafaring arrangement’s map aspect.
The digital national mirror is another institution in the Audi R8 e-tron. A high-resolution show mensuration 6.8 inches diagonally, in AMOLED engineering (participating matrix constitutive sparkle emitting diode), takes the situation of the upcountry mirror. A pocket-size, really high-performance camera captures the persona crosswise a full field and with eminent predisposition. A ascendance whole ensures that the effigy appearance on the exhibit perpetually has mellow counterpoint and magnificence. The AMOLED exhibit, a bare 7 millimeters (0.28 in) duncish, offers ten multiplication the counterpoint and 30 percentage wagerer vigor efficiency compared with an LCD varan.
Audi has weaponed the R8 e-tron with a man-made e-sound, which is hearable capable most 60 km/h (37.28 mph). A minor calculator generates the frequencies from information supplied by the crusade restrainer, and a stalwart speaker on the underbelly directs it to the route coat.