2011 Audi Q5 Hybrid QuattroMar 17th, 2011
As the first mass-produced hybrid model from Audi that features two drive systems, the Audi Q5 Hybrid Quattro is powered like a V6, with fuel consumption that of a four-cylinder TDI, which is under 6.9 liters per 100 km (33.60 US mpg) in the normal cycle (NEDC.) The electric motor combined with the 2.0 TFSI gasoline engine registers a system output of 245 hp (180kW) and 354.03 lb-ft (480Nm) of torque.
During the development process, Audi focused specifically on improving electric powered driving. The sportiest hybrid SUV on the market has a drive capability of up to 100 km/h (62.14 mph) under electric power alone and covers about 3 km locally emission-free at a speed of 60 km/h (37.28 mph.) Together, with the powerful lightweight lithium-ion battery and a host of other solutions, the Audi Q5 Hybrid Quattro is state of the art.
The 2.0 TFSI engine has been overhauled for use in the Audi Q5 Hybrid. The drive of the ancillary units have been dropped, and the crankshaft bearing and fine tuning of the turbocharger have been adapted to the specific demands. A secondary air system at the cylinder head makes sure that the secondary gas treatment cuts in almost immediately. Integrated in the engine control unit, the so-called hybrid manager controls the efficient change and smooth transitions between the operating modes.
The modified eight-speed tiptronic serves as a power transmission without the aid of a torque converter that has been replaced by the disk-shaped electric motor which, combined with a multi-plate clutch bathed in oil, couples and decouples the electric motor and the TFSI. The innovative decoupler operates precisely and smoothly under any situation.
Weighing a mere 38 kg (83.78 lb), the lithium-ion battery system serves as the energy store for the electric motor for the Audi Q5 Hybrid Quattro. The compact unit with its 26-liter (6.87 US-gallon) capacity consists of 72 cells and at 266 volts, its nominal energy is 1.3 kWh and its output is 39 kW.
For cooling at low-temperature load, it draws temperate air from the vehicle interior by way of a fan. If its temperature exceeds a certain limit, a separate refrigerant circuit is activated, which is coupled to the main climate control system of the vehicle and uses a separate evaporator. This efficient, active cooling mechanism is the primary factor in the hybrid system’s high electric availability and sets the Audi Q5 Hybrid Quattro apart from many other hybrid vehicles.
With the parallel hybrid system, the Audi Q5 Hybrid Quattro can be driven in five operating modes. Driving with the combustion engine alone, with the electric drive alone, or in hybrid mode is possible, as are recuperating and boosting. Using a single button found on the center console, the driver can easily change between the three programs: EV mode gives priority to electric drive in the city, D mode controls both motors for optimal consumption, and S mode is designed for a sporty driving style.
The Audi Q5 Hybrid features a novel display concept whereby each driving mode can be experienced. The tachometer has been replaced on the instrument cluster by a “power meter” that has a needle that indicates the total system output on a scale of 0 to 100. A second scale is divided into colored segments of green and orange that clearly show which drive system the Q5 Hybrid Quattro is currently operating under. An additional instrument displays the charge level of the battery.
Several exterior visual effects that are signature to the Audi Q5 Hybrid Quattro are prominent. The rear hatch, fenders, and aluminum door sills bear hybrid badges. The radiator grill is painted a high-gloss black. And the tailpipes are trimmed in chrome. An exclusive Arctic Silver Metallic paint finish is available as an option.
19-inch, ten spoke, cast aluminum wheels were specially designed for the Q5 Hybrid. Audi also offers customers 19- and 20-inch diagonal wheels and an S line bumper is available from Quattro GmbH.
The body is extremely light with the rear hatch and engine hood made of aluminum. The rigid body shell incorporates hot-shaped steel in numerous places, combining low weight with extremely high strength. Despite an extensive array of standard equipment, the Q5 Hybrid Quattro with its curb weight of less than 2000 kg (4,409 lb) is the lightest hybrid SUV on the world market.
Other features include the advanced Audi driver assistance systems, Internet connectivity via optional Bluetooth, and WLAN hotspot. Internet connectivity enables the car to retrieve the latest news and weather information and WLAN hotspot allows passengers to connect up to eight terminal devices to the Internet.