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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.:

US 12729512 B1

PDFFull Text
Date of Patent:
Sep. 08, 2026

Filed:

Feb. 21, 2025

System and method for controlling battery preconditioning in a work machine

Applicant:

Caterpillar Inc., Peoria, IL (US);

Inventors:

Curtis John Caldwell, Metamora, IL (US);

Cedric Girin, St. Martin d'Uriage, FR;

Assignee:

Caterpillar Inc., Peoria, IL (US);

Attorney:
Primary Examiner:

Rami Khatib

Int. Cl.
CPC ...
E02F 9/26 (2006.01); B60L 50/60 (2019.01); B60L 58/14 (2019.01); B60L 58/24 (2019.01); E02F 3/34 (2006.01); E02F 9/20 (2006.01);
U.S. Cl.
CPC ...
E02F 9/2091 (2013.01); B60L 50/60 (2019.02); B60L 58/14 (2019.02); B60L 58/24 (2019.02); E02F 9/26 (2013.01); B60L 2200/40 (2013.01); B60L 2240/54 (2013.01); B60L 2240/545 (2013.01); B60L 2240/662 (2013.01); E02F 3/34 (2013.01);
Abstract

A battery-powered work machine includes a control system for determining a threshold state of charge for the battery at which to seek instruction from an operator whether to precondition the battery for a Fast Charge. The control system evaluates various current parameters in the machine, such as battery cell temperature, ambient temperature, battery state of health, battery size, and capacity of a battery thermal management system, to determine an expected change in the state of charge caused by preconditioning the battery. A buffer amount of charge is added to define the threshold state of charge. When the threshold exceeds a current state of charge for the battery, the control system provides notification via an operator interface for an operator to elect or refuse a Fast Charge with battery preconditioning.

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Caldwell, Curtis. (2026). System and method for controlling battery preconditioning in a work machine (U.S. Patent No. 12729512). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12729512

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