Audi Q5 55 TFSI e quattro – PHEV with predictive operating strategy
The Audi Q5 55 TFSI e quattro with 270kW (367hp) system output (combined fuel consumption: 2.4 –2.1l/100km*(98.0 –112.0USmpg); combined CO2emissions: 53 –46g/km*(85.3 –74.0g/mi)) is the first of the new plug-in models from Audi. The drive concept comprises a combustion engine and an electric motor with intelligent controller, enabling it to cover most everyday driving distances electrically.
The WLTP all-electric range is more than 40kilometers (25.9mi). With the E license plate under the German Electric Mobility Act, owners also enjoy tax advantages and municipal traffic privileges.
Particularly quiet and with zero local emissions in the city, with high range on long-distance trips or sportily dynamic with the combined power of the combustion engine and the electric motor: the Audi Q5 55 TFSI e quattro** intelligently manages a number of versatile drive modes. The concept is designed so that customers can do the lion’s share of their daily driving electrically.
The predictive efficiency assistant (PEA) adjusts coasting recuperation behavior to the situation at hand. It uses the predictive route data from the navigation database and monitors the distance to the vehicle ahead using signals from the camera and radar. Depending on the situation, the system chooses predictively between freewheeling with the engine switched off and coasting recuperation, i.e. the recovery of kinetic energy and its conversion into electrical energy.
When the adaptive cruise control (ACC) is active, the PEA supports the driver by automatically braking and accelerating with the aim of enhancing efficiency and comfort. If the driver is driving without ACC, however, a haptic signal from the active accelerator pedal and a visual signal in the cockpit and head-up display indicate the proper time to let off the accelerator to use as much kinetic energy as possible. At the same time, symbols in the cockpit indicate the reason for the reduction in speed. There are indicators for: speed limits, town signs, curves and downhill slopes, traffic circles, intersections, highway exits and traffic ahead.
The driver is free to choose whether and how to intervene in the interplay between engine and motor. There are three driving modes from which to choose:
Hybrid mode is activated automatically together with route guidance in the navigation system. It can also be activated manually using the Mode button. In this mode, the battery charge is optimally distributed over the route to reduce fuel consumption, with primarily electric driving in urban areas and stop-and-go traffic. The system chooses between freewheeling with the engine switched off and coasting recuperation. Coasting recuperation can recover up to 25 kW of power. The electric motor is responsible for all light braking up to 0.1 g, i.e. the majority of braking in everyday driving. A maximum of 80 kW of electrical energy are generated via braking recuperation at a deceleration of up to 0.2 g. The disc brakes are used for more power deceleration. If route guidance is active in the MMI navigation system, the predictive operating strategy attempts to drive the last urban segment of the route all-electrically and arrive at the destination with the drive battery nearly empty. The control function is based on a large amount of data. These include online traffic information, distance to the destination, the route profile of the chosen route, precise information about immediate surroundings from the navigation data, such as speed limits, types of roads, uphill and downhill slopes and the latest data from the onboard sensors.
Besides Hybrid mode, the driver can also choose between EV and Battery Hold modes. In EV mode, the car is driven exclusively electrically as long as the driver does not depress the accelerator past a variable, perceptible pressure point. EV mode is the base setting each time the vehicle is started. In Battery Hold mode, battery capacity is held at the current level.