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BMW fine tunes plug-in hybrid X5 concept for New York Show

10 April 2014

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.

April 10, 2014 in Brief | Permalink | Comments (2) | TrackBack (0)

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Comments

Sorry my beloved BMW Brand but you just missed the MAIN POINT in your "refinements", and BMW will loose another year with PHEVs due to that : YOUR BATTERY CAN'T BE <10KWH. Market needs 25KW to 30KWH as a PHEV MINIMUM full stop. This concept if materialized will hit at best < 10% of its potential "HUGE" Plug-In Hybrid market, if you don't improve the battery size. Really silly to miss the mark forever with your Hybrids. Are you sure you are seriously pursuing this market ? My bet is your people who designed that superb eDrive never planned to use it for themselves, or they would have NEVER have put that far too small battery, that will require > 2 full charges per day to be able to perform my std # 65KM of local commutes "all electric", which is impossible to secure in current world (One at home possible, but nothing reliable outside the home), plus so many full charges will wear-out this too small battery : Means > 700 x full charges per year and over 10Y this would be 7000 x Full charges ! No Lithium-Ion battery can last that long ! PLEASE CORRECT THAT with an optional 25-30KWH option and still room for the luggage, before you ship it !

Are there any PHEV offerings with > 16 kWh batteries?  The Volt has ~16 kWh, the Fusion Energi has ~7.6, the plug-in Prius has considerably less.

Batteries are currently expensive.  If businesses (esp. employers) would just make Level 1 charging available for cheap, even today's PHEVs could be used mostly on electricity.  We can wait for the rest.

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