Patent ID: 8337352
Filing Date: 2012-12-25
Classification: B60K,F16H,Y02T,Y10S

Abstract:
1. A vehicle drive comprising: a first gear set including a sun gear, a ring gear and planetary gears which couple the sun gear to the ring gear; a second gear set including a sun gear, a ring gear and planetary gears which couple the sun gear to the ring gear, wherein the planetary gears of both sets are rotatably supported by respective planetary gear carriers which are coupled to each other; an engine; a first clutch which selectively engages the engine to the ring gear of the first gear set; a first motor/generator coupled to the sun gear of the first gear set; a second motor/generator coupled to the sun gear of the second gear set and electrically coupled to the first motor/generator; a second clutch which selectively engages the engine to the second motor/generator; and a third clutch and a third gear set which operate to selectively engage the ring gear of the second gear set to the planetary gear carriers of the first and second gear sets.