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<< Prev Page 2 of 3 Next >>  The Audi e-tron Sportback 55 quattro allows the driver to savor the interaction of efficiency, performance, and supreme calm. Each axle is fitted with an asynchronous electric motor that is fed with three-phase current by the power electronics. With an output of 265 kW and 561 Nm (413.8 lb-ft) of torque, the two standard electric motors pack a powerful punch in launching the SUV coupé from a standstill - locally emissions-free and in virtual silence. The Audi e-tron Sportback 55 quattro takes just 6.6 seconds, and its top speed is electronically limited to 200 km/h (124.3 mph). By shifting from drive range D to S and fully depressing the accelerator pedal, the driver can activate boost mode. Here, the drive generates 300 kW of output and 664 Nm (489.7 lb-ft) of torque for eight seconds. This enables the SUV coupé to sprint from 0 to 100 km/h (62.1 mph) in 5.7 seconds. Two-stage planetary gearboxes with one gear range transfer the torque from the electric motors to the axles. A switch, which the driver can operate with the thumb and forefinger, is used to select the gears. It is embedded in an elegant lever that is set low above the center tunnel and serves as a hand rest.Electric all-wheel drive ensures outstanding traction and dynamism on any terrain. With it, Audi is writing a new chapter in the history of quattro drive. It continuously regulates the ideal drive torque distribution between both axles-within fractions of a second. In most driving situations, the Audi e-tron Sportback relies exclusively on its rear electric motor-for exceptional efficiency. If the driver requests more output than it can provide, the front unit is instantly activated. This also happens predictively before slip occurs in icy conditions or when cornering fast, or if the car understeers or oversteers. A key factor behind the sporty character and outstanding transverse dynamics is the low installation position of the drive components-resulting in a center of gravity that is much lower than in a conventional SUV. All of the heaviest components are concentrated in the center of the vehicle. The axle load distribution with a ratio of almost 50:50 is perfectly balanced; the self-steering behavior is neutral. With components such as the five-link suspensions, the progressive steering and the electrohydraulic brake system, the suspension combines the latest technologies, which together ensure agile vehicle handling and a high degree of comfort. The standard 255/55 R19 size tires stand out with their ultra-low rolling resistance. On request, tires of up to 22 inches will also be available from the middle of 2020-one size larger than on the e-tron. The dynamic handling system Audi drive select-fitted as standard in the Audi e-tron Sportback-allows the driver to switch the method of operation of multiple drive components between seven profiles. This creates a marked difference between smooth rolling comfort and sporty, stable handling. The adaptive air suspension with controlled dampers provides a major contribution to this versatile character. At higher speeds, the body is lowered, noticeably improving airflow around it and extending the vehicle's range. In total, the system is capable of varying the ride height by up to 76 millimeters (3.0 in). The battery system of the Audi e-tron Sportback 55 quattro stores 95 kWh of gross energy (86.5 kWh net) and operates at a rated voltage of 396 volts. It is fitted as a wide flat block beneath the passenger cell, to which it is bolted at 35 points. The battery system is exceptionally rigid and crash-proof-thanks to a solid protective frame and an aluminum laminate that holds the 36 cell modules. These are arranged on two levels, as a long lower "floor" with 31 modules and a short upper floor with five modules. Each module integrates twelve 'pouch cells.' The cooling system is located beneath the cell chamber. During deceleration actions of up to 0.3 g-which applies to over 90 percent of such actions in everyday driving-the high-voltage battery is charged by the electric motors, primarily by the rear electric motor, which act as generators in these situations. The recuperation system provides for variable regulation of energy recuperation between both electric modules-both in coasting mode when the driver releases the right-hand pedal as well as during braking. The degree of coasting recuperation can be set to three stages by means of paddles on the steering wheel and is even more strongly differentiated than on the e-tron. When braking from 100 km/h (62.1 mph), the Audi e-tron Sportback can recuperate a maximum of 300 Nm (221.3 lb-ft) and 220 kW. As with its sister model, this amounts to more than 70 percent of its output and more than any other production model. Overall, the SUV‑coupé attains up to 30 percent of its range through recuperation. The wheel brakes, whose innovative electrohydraulic activation concept allows them to respond with exceptional speed, come into play only at deceleration forces greater than 0.3 g. Depending on the driving situation, the control system decides individually for each axle whether the SUV coupé recuperates using just the electric motors, just the wheel brakes, or a combination of both. The transition between electric and hydraulic braking is smooth and homogeneous so the driver does not even notice it. Brake forces remain constant. On the wheel brakes of the Audi e-tron Sportback, the developers have substantially reduced what is referred to as residual brake torque-the losses that occur during brief application of the brake pads against the disk. This benefits both efficiency and range. The same applies to three additional measures: During normal vehicle operation, the front electric motor is almost completely decoupled from the drive. An increase in the usable range of the high-voltage battery combined with a reduction in several of the volume flows in the coolant circuit means that the pump has to provide less power. The highly flexible thermal management, which comprises four separate circuits, regulates the temperature of the high-voltage components with maximum efficiency. This enables rapid DC charging, a long battery life cycle, and reproducible performance even under heavy loads. The standard heat pump, which harnesses waste heat from the high-voltage battery, can use up to 3 kW of actual power losses for heating and air conditioning the interior-which is exceptionally efficient. Depending on the outside temperature, that can boost the Audi e-tron Sportback's range by up to ten percent in customer operation. At market launch, Audi will offer the all-electric drive SUV coupé with a second motor variant. The e-tron Sportback 50 quattro generates 230 kW of output and 540 Nm (398.3 lb-ft) of torque. The battery dispenses with the upper "floor;" and its 27 modules each consist of twelve prismatic cells. The system, which weighs roughly 120 kilograms (264.6 lb) less than the battery of the Sportback 55 quattro, provides 71 kWh of gross energy (64.7 kWh net). This allows the SUV coupé to cover up to 347 kilometers (215.6 mi) on a full charge in the WLTP cycle. The Audi e-tron Sportback 50 quattro accelerates from 0 to 100 km/h (62.1 mph) in 6.8 seconds and has a top speed of 190 km/h (118.1 mph). On long-distance routes, the Audi e-tron Sportback 55 quattro can charge with direct current (DC) at up to 150 kW at fast-charging stations. In just under half an hour, the battery reaches 80 percent of its capacity-sufficient for the next leg of its long-distance trip. The e-tron Sportback 50 quattro can charge at up to 120 kW and achieves an identical charge status in the same time. Charging at public AC charging stations can be performed using a standard mode-3 cable. Up to 11 kW of power is available here, which can be increased to 22 kW with an optional second on-board charging device that will be available in summer 2020. Audi's own charging service, the e-tron Charging Service, provides easy access to almost 120,000 public charging points in 21 European countries - and the number is rising. Whether AC or DC, 11 or 150 kW-a single card is all that is required to start the process. The Plug & Charge function, which is also due to follow in 2020, will make charging even more convenient: The car authorizes itself at the charging station and activates it. Audi also offers a range of solutions for charging in the garage at home, depending on the capacity of the domestic power supply. The standard compact charging system is suitable for a simple 230-volt connection and for a 400-volt three-phase outlet with an output of up to 11 kW. The optional charging stem connect will be available for ordering at market launch. It offers smart charging functions, for example preferred charging at low-cost times. The combination with a suitable home energy management system allows the vehicle to be charged preferably with self-generated solar power, provided that the house is equipped with a photovoltaic system. With a wheelbase of 2,928 millimeters (9.6 ft), the Audi e-tron Sportback has ample space for five occupants along with their bags. Rear headroom is just 20 millimeters (0.8 in) less than in the Audi e-tron. The rear footwell is virtually level-just a flat step remains in place of the center tunnel. Including the 60-liter (2.1 cu ft) stowage compartment underneath the hood, which houses the vehicle tool kit and charging cable, the car offers a total of 615 liters (21.7 cu ft) of luggage capacity. Folding down the rear seat backrests increases the luggage capacity to 1,655 liters (58.4 cu ft). The tailgate opens and closes electrically, by foot movement as an option. The interior of the Audi e-tron Sportback is an elegant lounge featuring a seamless blend of design and technology. A generous arc that spans the instrument panel, extending from door to door, harmoniously integrates the cover for the Audi virtual cockpit. Its sleek display stands visually free in space. The wrap-around in the door trims also integrates the screens for the optional virtual exterior mirrors. The instrument panel with its two touch displays is angled towards the driver and therefore particularly ergonomic. When deactivated, the upper of these blends almost invisibly into the large gloss-black surround. Open sidewalls at the center tunnel console emphasize the impression of lightness. In every equipment line-along with the basic line, there is the interior design selection and S line interior-the Audi e-tron Sportback features carefully coordinated upholstery materials, colors, and inlays. For the front seats, customers can choose between the standard design, sport seats, S sport seats, and the customized contour seats, with optional ventilation and massage functions. Their stitching pattern is reminiscent of electric circuits and can be enhanced with optional bright orange contrasting stitching and piping. Little details create highlights: The optional contour/ambient lighting package illuminates surfaces subtly and edges sharply. It also issues a brief welcome jingle over the audio system when the motor starts. When the Audi e-tron Sportback is driven in an urban setting, its interior remains almost completely silent-thanks to sophisticated soundproofing and aeroacoustic measures. This ensures that HiFi sound is even more enjoyable, especially with the optional Bang & Olufsen Premium 3D Sound System on board. It allows the music to be enjoyed precisely how it was recorded, without any artificial effects. Another attractive infotainment module is the Audi phone box, which sets benchmarks in terms of connection and sound quality as well as wireless charging. << Prev Page 2 of 3 Next >> |
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