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US 11,447,373 B2Granted
Lift capacity system for lifting machines
AssigneeCaterpillar Inc.
InventorsCurtis J. Caldwell, Timothy E. Camacho, Aaron J. Gnagey
Life of this patent
Estimating the term…
Abstract
A lift machine includes a machine chassis, a boom extending from the machine chassis, and a connector extending from the boom for coupling to a load. The machine further includes a control system that determines a lift capacity of the machine based on a skew of the connector caused by the load.
Claims19
A lift machine, comprising:
- a machine chassis;
- a boom extending from the machine chassis;
- a connector extending from the boom for coupling to a load;
- and
- a control system that determines a lift capacity of the machine based on a skew of the connector caused by the load, wherein the skew of the connector is a position fore, aft, or roll with respect to a plum line associated with the connector.
2 more elements
A method for determining a lift capacity of a lift machine, the lift machine including a chassis, a boom extending from the chassis, and a connector extending from the boom for coupling to a load, the method comprising:
- sensing information including
- a fore, aft, and roll position of the chassis;
- an angle of the boom;
- the load coupled to the connector;
- a skew of the connector based on the load;
- and
- determining a lift capacity of the machine based at least on the sensed information.
4 more elements
A mobile pipelayer machine, comprising:
- a machine chassis;
- a boom extending from the machine chassis;
- a movable counterweight extending from the machine chassis;
- a connector extending from the boom for coupling to a load;
- and
- a control system including a controller that receives information indicative of
- a fore, aft, and roll position of the chassis;
- a position of the counterweight;
- an angle of the boom;
- the load coupled to the connector;
- a skew of the connector based on the load;
- and
- wherein the control system determines a real-time lift capacity of the machine based at least on the information.
10 more elements
Dependencies are inferred from the claim text.