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Audi is systematically pursuing its electrification technique and is now providing its massive four-door A7 Sportback coupe as a robust, environment friendly plug-in hybrid (PHEV). The brand new Audi A7 Sportback 55 TFSI e quattro delivers a system output of 270 kW (367 PS) (mixed gas consumption of two.1 – 1.9 l/100 km (112.0 – 123.8 US mpg); mixed electrical consumption of 18.1 – 17.5 kWh/100 km; mixed CO2 emissions of 48 – 44 g/km (77.2 – 70.8 g/mi)).
The drivetrain of the brand new plug-in hybrid Audi A7 Sportback 55 TFSI e quattro includes a turbocharged 2-liter, four-cylinder gasoline engine with an output of 185 kW (252 PS) and 370 N·m (272.9 lb-ft) of torque and an electrical motor. The completely excited synchronous motor (PSM) has a peak output of 105 kW and peak torque of 350 NN·mm (258.1 lb-ft).
Along with the separating clutch, it’s built-in into the seven-speed S tronic, which makes use of extremely expertise to switch the drive torque to a quattro extremely drivetrain.
Complete system output is 270 kW (367 PS); the utmost torque of 500 N·m (368.8 lb-ft) is already obtainable at simply 1,250 rpm. The A7 PHEV accelerates from 0 to 100 km/h (62.1 mph) in 5.7 seconds and reaches a prime pace of 250 km/h (155.3 mph).
As an organization automobile, the plug-in hybrid mannequin is topic to a decrease tax charge in Germany as a result of its electrical vary within the WLTP cycle is greater than 40 kilometers (24.9 mi). The A7 Sportback can drive at as much as 135 km/h (83.9 mph) in electric-only mode, making emissions-free freeway driving simple.
Comprising 104 pouch cells, the lithium-ion battery shops 14.1 kWh of power at a rated voltage of 381 volts beneath the bags compartment flooring. For optimum temperature management, its cooling loop is linked to each the coolant loop for the local weather management system and the low-temperature cooling loop into which the electrical motor and energy electronics are additionally built-in.
The lithium-ion battery is built-in into the rear of the car under the bags compartment flooring in reminiscent of approach that there isn’t a step within the baggage compartment. Most usable stowage capability with the rear seat folded down is thus 1,235 liters (43.6 cu ft).
A full cost at a three-phase CEE industrial outlet with 400 volts and 16 amperes per section takes simply roughly 2.5 hours. The car costs with a most of seven.4 kW. Even a 230 volt family outlet can recharge an empty battery totally and conveniently in a single day in roughly seven hours. Handy recharging can be doable on the highway. The proprietary Audi e-tron Charging Service supplies entry to greater than 100,000 charging factors in Europe. A single card is adequate to start out charging, whatever the supplier.
Usually Audi, the A7 Sportback 55 TFSI e can be geared up with quattro all-wheel drive with extremely expertise. The rear axle is activated lightning quick and predictively as wanted. Recuperation {of electrical} power is all the time by way of the entrance axle.
Three driving modes. The drive idea of the A7 Sportback 55 TFSI e quattro is designed in order that clients can do probably the most of their every day driving electrically. Whether or not with zero native emissions within the metropolis or with excessive vary on lengthy journeys. The mix of electrical motor and inner combustion engine supplies for a sportily dynamic driving expertise. With its three completely different driving modes, the plug-in hybrid is straightforward to function in on a regular basis use.
The A7 PHEV begins by default in EV mode. This implies the automobile is pushed completely electrically so long as the driving force doesn’t depress the accelerator previous a variable, perceptible strain level. EV mode is the bottom setting every time the car is began. Within the second driving mode, Battery Maintain mode, the drive administration system holds battery capability on the present stage so {that a} outlined distance can later be coated totally electrically, for example.
The Hybrid mode is activated both robotically along with route steering within the navigation system or by the driving force utilizing the working mode button. On this mode, the A7 PHEV makes use of the interaction between the electrical motor and the inner combustion engine to finish as many driving segments as doable electrically in order that general gas consumption on the finish of the journey is as little as doable. For instance, stop-and-go site visitors in cities might be pushed electrically for probably the most half.
Relying on the scenario, the system chooses between freewheeling with the engine switched off and coasting recuperation. As much as 35 kW of energy might be recovered with the latter. The electrical motor is accountable for all gentle braking as much as 0.1 g, i.e. the vast majority of braking in on a regular basis driving. A most of 80 kW {of electrical} power are generated by way of braking recuperation at a deceleration of as much as 0.2 g.
Predictive working technique and predictive effectivity help. For max effectivity the A7 makes use of predictive drive administration—the predictive working technique. It makes use of info from the predictive effectivity help additionally present in different Audi mid- and full-size class fashions to manage the electrical motor, lithium-ion battery and the inner combustion engine.
If route steering is lively within the MMI navigation system, the predictive working technique controls the drivetrain in order that the final city part of the route might be pushed completely electrically and the Audi A7 PHEV arrives on the vacation spot with the drive battery almost empty.
If the A7 Sportback TFSI e approaches a city, the drive administration costs the battery in order that the final city part might be pushed electrically. The motive force can thus use all the electrical power to drive with zero native emissions upon getting into a city.
Drive administration is managed on the premise of a considerable amount of information. The predictive working technique makes use of two varieties of information, close to area and route info, for tough and precision planning of the route. The tough planning relies on on-line site visitors info, distance to the vacation spot, the route profile of the chosen route, exact details about instant environment from the navigation information, reminiscent of pace limits, varieties of roads,
uphill and downhill slopes and the newest information from the onboard sensors.
The drive controller’s tough planning is subsequently primarily based totally on route info alongside the pushed route, reminiscent of site visitors circulation, topography and highway kind. Precision planning, with which the A7 manages the drive controller within the present driving scenario, is carried out by the predictive effectivity assistant (PEA) present in different Audi mid- and large-size class fashions.
The predictive effectivity assistant adjusts coasting recuperation conduct to the driving scenario at hand. It makes use of the predictable route information from the navigation database and displays the gap to the car forward utilizing alerts from the digital camera and radar. Relying on the scenario, the system chooses predictively between freewheeling with the engine switched off and coasting recuperation, i.e. the restoration of kinetic power and its conversion into electrical power. When the adaptive cruise management (ACC) is lively, the PEA helps the driving force by robotically braking and accelerating with the goal of enhancing effectivity and luxury.
A haptic pulse from the lively accelerator pedal and an optical sign within the driver info system show in addition to the elective head-up show present further assist for the best doable effectivity. The lively accelerator pedal has each a haptic strain level that alerts the tip of electric-only driving and haptic suggestions that alerts the driving force to take their foot off of the accelerator.
Orders at the moment are being accepted for the Audi A7 Sportback 55 TFSI e quattro at a base value in Germany of €77,850. Market introduction begins within the third quarter of 2019.
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