BMW says it has made a series of detailed refinements to its plug-in hybrid concept X5 eDrive in preparation for its appearance at the New York International Auto Show. BMW first unveiled the concept plug-in hybrid at the 2013 Frankfurt International Motor Show (IAA) (earlier post, earlier post).
The Concept X5 eDrive—the first pairing of BMW’s electric drive eDrive technology with the BMW xDrive intelligent all-wheel-drive system—comes equipped with a 180 kW/245 hp four-cylinder gasoline engine with BMW TwinPower Turbo technology and a 70 kW/95 hp electric motor developed by the BMW Group. The motor is supplied with power from a lithium-ion battery that can be charged from any domestic socket and has sufficient capacity to enable all-electric driving with zero local emissions for a range of up to 30 kilometers (18.6 miles). Average fuel consumption is less than 3.8 l/100 km (62 mpg US) in the EU test cycle.
The electric motor alone is capable of propelling the BMW Concept X5 eDrive to a top speed of 120 km/h (75 mph). With 250 N·m (184 lb-ft) of torque on tap from stationary, it gives the vehicle spontaneous response. It also works in tandem with the combustion engine to boost its power significantly whenever a quick burst of speed is needed. The BMW Concept X5 eDrive is able to complete the standard sprint from rest to 100 km/h (62 mph) in less than 7.0 seconds.
The power electronics were developed by the BMW Group and apply the same basic concept used in the BMW i cars. The power electronics combine a liquid-cooled inverter for driving the electric motor, supplying energy to the onboard electrical system from the high-voltage battery and for centralized control of the hybrid-specific drive functions into a single integrated system.
In addition to the settings that can be activated using the characteristic BMW Driving Experience Control switch, three driving modes can be selected:
- intelligent hybrid drive with an optimal relationship between sportiness and efficiency (AUTO eDrive);
- pure electric driving (MAX eDrive); and
- SAVE Battery to maintain the current charge level.
The X5 eDrive features permanent and fully variable distribution of drive power between the front and rear wheels.
The high-voltage battery developed for the BMW Concept X5 eDrive is housed underneath the luggage compartment, whose everyday usability remains essentially uncompromised due to the 40:20:40 split-folding rear backrest and an almost level loading floor.
The Wallbox Pro home charging unit is designed for installation in the customer’s garage and offers a maximum charging rate of 7.4 kW. It is controlled by means of a high-resolution touchscreen including proximity sensor, while LED light strips provide an additional indication of the charge status. The built-in load management facility governs the charging current in accordance with the current draw on the household electricity supply.
The Wallbox Pro also makes it possible to use home-generated electricity, such as that obtained from solar panels. There is also a function for creating different user profiles and displaying the respective charging histories. On request, the corresponding data can be sent online, e.g. for billing purposes.