Caterpillar Inc.
Pipelayer and diesel hybrid pipelayer power control strategy

Abstract:

A pipelayer includes a frame, a plurality of ground engaging members movably supporting the frame, a prime mover, and a boom assembly and a counterbalance assembly supported on the frame. The boom assembly includes a boom. The counterbalance assembly including a counterweight, the counterweight being movably supported on the frame to counterbalance the boom assembly. The counterweight includes a battery box including at least one battery. A control strategy is also disclosed.