Patent ID: 7740093
Filing Date: 2010-06-22
Classification: B60K,B60L,B60W,F16H,Y02T,Y10T

Abstract:
1. A power plant for driving a driven part, comprising: an engine comprising an output shaft, said output shaft operatively connected to said driven part; a transmission operatively connected to said output shaft of said engine and said driven part for changing a speed of power of said engine and for transmitting said speed of power to said driven part; a generator-motor comprising an output portion; a planetary gear train comprising a first element, a second element, and a third element, one of said first element, said second element, and said third element being operatively connected between said output shaft of said engine and said transmission, another of said first element, said second element, and said third element being operatively connected to said output portion of said generator-motor, and a remaining one of said first element, said second element, and said third element being operatively connected to said driven part in parallel to said transmission; a clutch for connecting and disconnecting a connection between one of said first element and said third element and said driven part; and a lock mechanism configured to hold said second element unrotatable, wherein one of said first element, said second element, and said third element is configured to rotatably support planetary gears in a mesh with the other two of said first element, said second element, and said third element, wherein said first element of said planetary gear train comprises a sun gear, said second element comprises a carrier, and said third element comprises a ring gear, and wherein one of said sun gear and said ring gear is operatively connected between said output shaft of said engine and said transmission, the other of said sun gear and said ring gear being operatively connected to said output portion of said generator-motor, and said carrier is operatively connected to said driven part.