| US 7,462,121 B2 | ||
| Hybrid electric vehicle powertrain with four-wheel drive characteristics | ||
| David Janson, Plymouth, Mich. (US); and Reid Baldwin, Howell, Mich. (US) | ||
| Assigned to Ford Global Technologies, LLC, Dearborn, Mich. (US) | ||
| Filed on May 12, 2006, as Appl. No. 11/383,031. | ||
| Prior Publication US 2007/0265126 A1, Nov. 15, 2007 | ||
| Int. Cl. F16H 3/72 (2006.01); F16H 37/06 (2006.01) | ||
| U.S. Cl. 475—5 [475/6; 475/214; 74/330; 903/910; 903/917; 903/951] | 25 Claims |
| 1. A hybrid electric vehicle powertrain comprising an engine, an electric machine and a battery system with a stator and a
rotor, a multiple ratio transmission and a gear unit with gear members defining power flow paths from the engine to one torque
output shaft drivably connected to one set of vehicle traction wheels;
the gear unit having one element drivably connected to the rotor;
a reaction brake for the gear unit;
a second torque output shaft drivably connected to the rotor, the second torque output shaft being drivably connected to a
second set of traction wheels;
twin transmission torque input shafts; and
two clutches alternately engageable to connect the engine to the transmission torque input shafts.
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