Hydraulic regenerating and low-speed operating power shift transmission

摘要

A work vehicle including an engine and a transmission. The transmission is driven by the engine. The transmission includes an input clutch, an output clutch, and a hydraulic pump/motor. The hydraulic pump/motor is operatively connected between the input clutch and the output clutch.

主权项

1. A work vehicle, comprising:
an engine; a transmission driven by said engine, said transmission including:
a first input clutch operatively connected between said engine and a power conveying unit;a first output clutch;a first hydraulic pump/motor coupled to said power conveying unit; andsaid power conveying unit operatively connected between said first input clutch and said first output clutch; and, an accumulator configured to drive said first hydraulic pump/motor; an actuator connected to said accumulator and configured to be driven by at least one of said first hydraulic pump/motor and said accumulator; wherein said transmission is configured to transition from a hydrostatically driven mode to a transport mode, said hydrostatically driven mode including said first hydraulic pump/motor driving said first output clutch through said power conveying unit, said transport mode including destroking said first hydraulic pump/motor.