POWER TRAIN FOR CONTINUOUSLY VARIABLE POWER TRANSMISSION

摘要

A power train and related vehicle are described for continuously variable transmission of power. A gear set includes first and second input components and an output component. An engine provides mechanical power to the first input component and, when a clutch device is in a first state, to a first continuously variable power source (“CVP”). With the clutch device in a second state, the first CVP is decoupled from the engine. A second CVP receives non-mechanical power from the first CVP, and converts the non-mechanical power to mechanical power. When a brake device is not engaged, the second CVP provides the resulting mechanical power to the second input component. When the brake device is engaged, the brake device prevents the second input component from rotating.

主权项

1. A power train for a vehicle including an engine, the power train comprising:
a gear set with a first input component, a second input component, and an output component, wherein the engine provides mechanical power to the output component via the first input component; a first continuously variable power source configured to receive mechanical power from the engine via a clutch device and convert the received mechanical power to non-mechanical power; a second continuously variable power source configured to receive the non-mechanical power from the first continuously variable power source, convert the received non-mechanical power to mechanical power, and provide mechanical power to the output component of the gear set via an output interface of the second continuously variable power source and the second input component of the gear set; and a brake device in communication with one or more of the output interface of the second continuously variable power source and the second input component of the gear set; wherein, when the brake device is in an engaged state the brake device prevents the second input component of the gear set from rotating; wherein, when the clutch device is in a first clutch state, the first continuously variable power source is decoupled from the engine with respect to provision of mechanical power from the engine to the first continuously variable power source; and wherein, when the clutch device is in a second clutch state and the brake device is not engaged, mechanical power is provided to the first continuously variable power source from the engine and mechanical power is provided to the output component from the second continuously variable power source via the second input component.