초록 ▼

A system and process for controlling and actuating an excavation implement during excavation between an above-ground position and an operator specified below-ground position and for maintaining the specified below-ground position once achieved. The actuation of the excavation implement is regulated

A system and process for controlling and actuating an excavation implement during excavation between an above-ground position and an operator specified below-ground position and for maintaining the specified below-ground position once achieved. The actuation of the excavation implement is regulated by use of an operator modifiable relationship between an engine operating speed and an actuator speed. The actuation of the excavation implement is further regulated by use of an operator modifiable relationship between an attachment drive speed and the actuator speed. A computer network controls the actuation of the excavation implement in response to inputs from the operator and feedback from the engine speed, the attachment drive speed, and an actuator position sensor as the excavation implement progresses through the earth. This results in the system maintaining the engine speed and the attachment drive speed at a desired output level when the excavation implement is subject to variations in loading while moving between the above-ground and below-ground positions.

대표청구항 ▼

What is claimed is: 1. A mobile piece of excavation equipment comprising:a chassis;a plurality of propulsion structures on which the chassis is supported;an excavation component including a boom pivotally moveable relative to the chassis, the excavation component also including a rotational cutting

What is claimed is: 1. A mobile piece of excavation equipment comprising:a chassis;a plurality of propulsion structures on which the chassis is supported;an excavation component including a boom pivotally moveable relative to the chassis, the excavation component also including a rotational cutting structure mounted on the boom, the excavation component further including an attachment drive for driving the rotational cutting structure relative to the boom and an actuator for pivoting the boom relative to the chassis to raise and lower the boom; andan electronic control system for detecting a stall condition, wherein when the stall condition is detected by the electronic control system during an excavation operation, the electronic control system automatically interrupts the excavation operation and automatically causes the mobile piece of excavation equipment to positively reverse a direction of movement of the boom from a first direction of movement to a second opposite direction of movement.