Patent Number: 10,029,555

Title: Multi-mode electromechanical variable transmission

Abstract: A vehicle includes an engine, a drive axle, a multi-mode transmission, and a controller. The multi-mode transmission includes a first gear set having a first planetary gear carrier and a second gear set having a second planetary gear carrier, a first motor/generator coupled to the first gear set, a second motor/generator electrically coupled to the first motor/generator and coupled to the second gear set, a brake selectively limiting movement of a portion of the second gear set, and a clutch selectively rotationally coupling the second motor/generator to the engine. The first gear set is coupled to the engine, and the planetary gear carriers are rotatably coupled. The controller is configured to selectively configure the multi-mode transmission into an active neutral startup mode of operation by engaging the clutch and the brake such that at least one of the first motor/generator and the second motor/generator produces a voltage.

Inventors: Kotloski; Andrew J. (Neenah, WI), Shukla; Deepak (Appleton, WI)

Assignee: Oshkosh Corporation

International Classification: B60K 6/445 (20071001); B60K 6/387 (20071001); B60K 6/442 (20071001); F16H 3/72 (20060101); B60K 6/365 (20071001); F16H 37/08 (20060101); B60K 6/38 (20071001)

Expiration Date: 2022-07-24 0:00:00