US 12,704,553 B2 · Adaptive charge control for transport climate control applications

Abstract

Methods and systems for operating a rechargeable energy storage source management system (RMS) to power a load while a power system is connected to an external power source are provided. One method includes determining a charger is connected to the external power source and enabled. The method also includes modulating a charger current from the charger to a rechargeable energy storage source management system (RMS). Also, the method includes modulating a rechargeable energy storage source (RESS) current provided by the RMS and configured to charge a RESS of the power system. Further, the method includes monitoring a RESS state of charge (SoC), monitoring the RESS current provided by the charger, and comparing the RESS SoC with a desired RESS SoC threshold. Upon the RESS SoC reaching the desired RESS SoC threshold, modulating the charger current for powering the load while avoiding decreasing the RESS SoC.

Claims19

Dependent claims

A method for operating a power system that is powering a load while the power system is connected to an external power source, the method comprising:

determining a charger of the power system is connected to the external power source and the charger is enabled;
monitoring a rechargeable energy storage source (RESS) state of charge (SoC) of a RESS of the power system;
monitoring a RESS current;
a RESS management system (RMS) modulating a charger current from the charger to the RMS, wherein the RMS includes a high voltage power distribution unit configured to distribute electrical power passing through the RMS;
the RMS modulating RESS current, the RESS current being either (i) provided by the RMS to the RESS and configured to charge the RESS of the power system, or (ii) being supplied by the RESS to the RMS and configured to power the load;
and
the RMS modulating a load current supplied to the load from the RMS via the charger or the RESS.

4 more elements

A power system for powering a load while being connected to an external power source, the power system comprising:

a charger configured to connect the external power source to a rechargeable energy storage source management system (RMS);
the RMS:
a) configured to modulate a charger current from the charger to the RMS, the charger current being configured to provide electrical power to the power system;
b) configured to modulate a rechargeable energy storage source (RESS) current configured to charge or discharge a RESS, the RESS current being either (i) provided by the RMS to the RESS and configured to charge the RESS of the power system, or (ii) being supplied by the RESS to the RMS and configured to power the load;
and c) configured to modulate a load current supplied to the load from the RMS via the charger or the RESS;
the RESS configured to provide power to the load;
and
a controller configured to:
determine that the charger is connected to the external power source and configured to determine that the charger is enabled;
and
monitor a RESS state of charge (SoC) of a RESS;
the RMS configured to
monitor the RESS current,
wherein the RMS includes a high voltage power distribution unit configured to distribute electrical power passing through the RMS.

11 more elements

Dependencies are inferred from the claim text.

Adaptive charge control for transport climate control applications

Life of this patent

Adaptive charge control for transport climate control applications

Life of this patent

Abstract

Claims19