The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 08, 2026
Filed:
Jun. 03, 2025
Caterpillar Inc., Peoria, IL (US);
Andrew J. Olson, Vail, AZ (US);
Luc Anani Agbekodo, San Tan Valley, AZ (US);
David W. Engelhardt, Tucson, AZ (US);
Steven C. Budde, Dunlap, IL (US);
Michael D. Hudson, Tucson, AZ (US);
John J. Krone, Peoria, IL (US);
Cameron T. Lane, Oro Valley, AZ (US);
Karl P. Schneider, Decatur, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A work machine includes a first hydraulic circuit, a second hydraulic circuit, a single electric motor, and a controller. The first hydraulic circuit includes a first pump and a first valve. The first pump is configured to drive a first group of hydraulic accessories. The second hydraulic circuit includes a second pump and a variable pressure valve. The second pump is configured to drive a second group of hydraulic accessories. The single electric motor is connected/configured to drive the first pump and the second pump. The controller configured to estimate a torque of the second pump, estimate a total torque of the motor as a sum of a current operating torque of the motor and the estimate of the torque of the second pump, and, on condition the total torque of the motor is greater than a threshold torque, lower an operating torque of at least one of the first pump or the second pump.