US 12,467,229 B2
Work machine stabilization
Jonathan Rafferty, Pascoe Vale (AU); and Aaron Westbury, Wynyard (AU)
Assigned to Caterpillar Inc., Peoria, IL (US)
Filed by Caterpillar Inc., Peoria, IL (US)
Filed on Jan. 16, 2024, as Appl. No. 18/413,882.
Prior Publication US 2025/0230631 A1, Jul. 17, 2025
Int. Cl. E02F 9/20 (2006.01); E02F 9/24 (2006.01); E02F 9/26 (2006.01)
CPC E02F 9/2029 (2013.01) [E02F 9/24 (2013.01); E02F 9/264 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A work machine, comprising:
a work tool that is configured to be actuated via one or more actuators;
a first one or more tires;
a second one or more tires that are positioned further from the work tool relative to the first one or more tires; and
one or more controllers configured to:
monitor, via one or more monitoring systems, load information of the work machine, the load information including:
first tire pressure information of the first one or more tires,
second tire pressure information of the second one or more tires, and
fluid pressure information of the one or more actuators;
detect a destabilization event of the work machine based on:
a first difference in tire pressure, indicated by the first tire pressure information, of the first one or more tires satisfying a first tire pressure threshold,
a second difference in tire pressure, indicated by the second tire pressure information, of the second one or more tires satisfying a second tire pressure threshold, and
a difference in fluid pressure, indicated by the fluid pressure information, of the one or more actuators satisfying a fluid pressure threshold; and
perform, based on the detection of the destabilization event, one or more actions.
 
9. A system for work machine stabilization, the system comprising:
one or more controllers configured to:
monitor, during a work operation associated with a work tool of a work machine,
tire pressure information indicating:
a first one or more tire pressures of a first one or more tires of the work machine, and
a second one or more tire pressures of a second one or more tires of the work machine,
wherein the first one or more tires are positioned on the work machine closer to the work tool relative to the second one or more tires;
monitor, during the work operation, fluid pressure information indicating one or more fluid pressures of one or more actuators that are configured to move the work tool;
detect a destabilization event of the work machine based on:
a first relative difference in the first one or more tire pressures during the work operation satisfying a first tire pressure threshold,
a second relative difference in the second one or more tire pressures during the work operation satisfying a second tire pressure threshold, and
a third relative difference in the one or more fluid pressures during the work operation satisfying a fluid pressure threshold; and
perform, based on the destabilization event, one or more actions.
 
16. A method for stabilizing a work machine having a work tool, the method comprising:
monitoring, by a control system of the work machine, load information of the work machine, the load information including:
first tire pressure information of a first one or more tires,
second tire pressure information of a second one or more tires that are positioned further from the work tool relative to the first one or more tires, and
fluid pressure information of one or more actuators configured to actuate the work tool;
detecting, by the control system, a destabilization event of the work machine based on:
a decrease in tire pressure, indicated by the first tire pressure information, of the first one or more tires satisfying a first tire pressure threshold,
an increase in tire pressure, indicated by the second tire pressure information, of the second one or more tires satisfying a second tire pressure threshold, and
an increase in fluid pressure, indicated by the fluid pressure information, of the one or more actuators satisfying a fluid pressure threshold; and
performing, by the control system and based on detecting the destabilization event, one or more actions.