公开(公告)号：US11600997B2

公开(公告)日：2023-03-07

申请号：US17016114

申请日：2020-09-09

Applicant: Caterpillar Inc.

Inventor： Justin D. Middleton ,  Jonathan M. Baumann ,  Jason Lee Miller ,  Dustin C. Selvey ,  Adam R. Rosenberger ,  Evan B. Stumpges

IPC: H02J7/00 ,  B60R16/033 ,  G01R31/66 ,  G01R31/36

Abstract: In some aspects, a method of monitoring a battery system of an industrial vehicle is disclosed. The battery system may include a first string of battery modules including at least two battery modules connected in series; a first contactor connected to a positive end of the first string of battery modules, a second contactor connector to a negative end of the first string of battery modules; a third contactor connected to the first contactor; a fourth contactor connected to the second contactor; and one or more controllers configured to monitor the first contactor and the second contactor. The method may include receiving, at the one or more controllers, an indication of a failure of one of the first contactor and the second contactor; and opening, via the one or more controllers, at least one of the third contactor or the fourth contactor.

公开(公告)号：US20230035165A1

公开(公告)日：2023-02-02

申请号：US17443466

申请日：2021-07-27

Applicant: Caterpillar Inc.

Inventor： Jonathan Matthew Baumann ,  Dustin Craig Selvey ,  Jason Lee Miller ,  Alexander C. Crosman,, III

IPC: B60L50/16 ,  B60L53/16 ,  H02J7/00 ,  B60L53/60

Abstract: A system for charging a battery unit to power a work machine. The system includes a charger to charge the battery unit, charging receptacles, power supply connectors, and a charging controller. The power supply connectors are configured to be received into the charging receptacles to attain connections between the charger and the battery unit. The charging controller is communicably coupled to the charger and is configured to receive an input corresponding to a net charge capacity of the battery unit; determine a power to be supplied to the battery unit by the charger to charge the battery unit in response to the input; and supply the power to the battery unit from the charger through the connections. The power to be supplied to the battery unit corresponds to a maximum possible power that meets the net charge capacity of the battery unit in the shortest possible time.