BMW Developing a Two Internal Combustion Engine & Electric Hybrid System

BMW patent

BMW has just been granted a patent detailing plans for a drivetrain that combines two internal combustion engines and an electric engine. The hybrid system involves a “split engine” approach where the car is driven by one of the engines and the electric motor at low speeds (or while cruising at low RPM). Once more power is needed, the second engine starts and provides extra acceleration and performance.

While specifics are light within the document, there is a mention of both engines being two cylinder units. With BMW having such an excellent range of two cylinder engines from Motorrad, one could easily see this technology being leveraged in this way.

You can see the entire patent below.

+ Hybrid Vehicle Having a Split Engine / Patent

Courtesy of RacingPuma

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BMW Model Number Cheat Sheet

Classics
E9 CS (1968-1976)
E10 2002 (1967-1977)

1 Series
E81/82/88 1 Series (2004-)
F20 1 Series

3 Series
E21 3 Series (1975-1983)
E30 3 Series (1982-1993
E36 3 Series (1991-2000)
E46 3 Series (1999-2006)
E90/E91/E92/E93 3 Series (2006-)
F30 3 Series (2013-)

5 Series
E12 5 Series (1972-1981)
E28 5 Series (1981-1988)
E34 5 Series (1987-1995)
E39 5 Series (1995-2002)
E60/E61 5 Series (2003-2010)
F07 5 Series GT (2010-)
F10 5 Series (2011-)

6 Series
E24 6 Series (1976-1989)
E63 6 Series (2005-)
E64 6 Series Conv. (2006-)
F12 6 Series Conv. (2012-) F13 6 Series Coupe (2012-)

7 Series
E23 7 Series (1977-1987)
E32 7 Series (1988-1994)
E38 7 Series (1995–2001)
E65/E66 7 Series (2001-2008)
F01/02 7 Series (2009-)

8 Series
E31 8 Series (1989-1999)

X Series
E84 X1 (2009-)
E83 X3 (2004-2011)
F25 X3 (2011-)
E53 X5 (1999-2006)
E70 X5 (2006-)
E71 X6 (2008-)

Z Series
E36/7 Z3 Roadster
E36/7 Z3 Coupe (1995-2001)
E86 Z4 Coupe (2006-2009)
E85 Z4 Roadster (2002-2009)
E86 Z4 M Coupe (2006-2009)
E89 Z4 Roadster (2009-)
E52 Z8 (2000-2003)

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