Track trencher propulsion system with component feedback

Details Track trencher propulsion system with component feedback Track trencher propulsion system with component feedback

2011-04-26

2011-04-26

Beach, Thomas A (Department: 3671)

Excavating

Ditcher

Condition responsive

C037S382000, C701S050000, C172S007000, C180S117000, C180S206500, C180S197000

Reexamination Certificate

active

07930843

ABSTRACT:
A system and process for controlling propulsion and steering of a track trencher excavation machine powered by an engine includes a multiple mode propulsion and steering control system that performs a plurality of functions depending on a selection of one of a plurality of operational modes. A controller generates a vehicle propulsion hydrostatic drive signal optionally using a track drive hydraulic pressure or a track drive speed as a variable for modifying the propulsion drive signal. The controller optionally uses a hydraulic attachment drive pressure as a variable for further modifying the propulsion drive signal.

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