Hybrid drive patent overview

1. Simple Hybrid Drive Layout for entry
level automobiles
January 2013
• The presentation is based on the recently granted German Patent
File No 10 2006 005 131.9
• This is a „teaser“ version of the presentation. The full presentation is
available upon request by sending a LinkedIn message.

2. • Goal: high efficiency hybrid technology for entry level vehicles – favor simplicity,
accept noticible transitions between modes and other rough edges
• Patented layout: combustion engine – electrically actuated clutch – two speed
gearbox – electric motor / generator – two speed gearbox – drive wheel link (see
next slide)
• The two speed gearboxes need to provide uninterrupted torque, typically
planetary type; the first one will have a narrow, the second a wider ratio of gear
ratio, to provide a total of four combinations
• The combustion engine and electric motor will typically be of similar power – each
is able to propel the vehicle by itself
• The next slides show the operation of the drive system at different battery charge
levels

3. • The full presentation illustrates how the control sytem interacts with the mechanical
components to achieve the goal of simplicity and effectiveness
20
8060
100
120
40

4. This presentation was prepared by:
Klaus Mundil
and is based on German Patent No. 10 2006 005 131.9, held by Klaus Mundil