Charging/discharging control device

    公开(公告)号:US11820358B2

    公开(公告)日:2023-11-21

    申请号:US16962021

    申请日:2019-07-11

    申请人: HINO MOTORS, LTD.

    发明人: Hiroki Sakashita

    摘要: A charging/discharging control device includes a route information acquisition unit, a section identification unit that identifies an excessive discharging section and an excessive charging section, and a charging/discharging control unit that controls charging and discharging of a battery. The charging/discharging control unit limits a charge current value in the excessive charging section to a fixed first upper limit value. The state of charge reaches a maximum state of charge at an end point of the excessive charging section when the charge current value is maintained at the first upper limit value. The charging/discharging control unit limits a discharge current value in the excessive discharging section to a fixed second upper limit value. The state of charge reaches a minimum state of charge at an end point of the excessive discharging section when the discharge current value is maintained at the second upper limit value.

    System and method for charging battery units of work machines

    公开(公告)号:US11707993B2

    公开(公告)日:2023-07-25

    申请号:US17443466

    申请日:2021-07-27

    申请人: Caterpillar Inc.

    摘要: 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.