CN-122026299-A - Energy management system and method for optimizing power load maximizing power supply standby time

Abstract

A method for determining a power source for powering a plurality of circuits, determining a state of charge of the power source, determining available discharge energy, and classifying each circuit using a digital junction box between a first energy source and a second energy source by setting at least a first limit and a second limit. When the second energy source is in the unpowered state, a circuit to be powered by the first energy source is determined by comparing the available discharge energy to the first limit and the second limit. When the second energy source is in the energized state, a circuit to be powered by the first energy source and a circuit to be powered by the second energy source are determined by comparing the current state of charge to the first limit and the second limit.

Inventors

• M. Deoket
• C. C. RUTH

Assignees

• 通用汽车环球科技运作有限责任公司

Dates

Publication Date

20260512

Application Date

20241225

Priority Date

20241108

Claims (10)

1. 1. A method of customizing a circuit connection for customizing which of a plurality of circuits are connected to one of a first energy source and a second energy source using a digital junction box, the method comprising: determining a state of the second energy source, wherein the state comprises one of an energized state and a non-energized state; When the state is in the unpowered state, further comprising: Determining the energy source as the first energy source; Determining a current state of charge of the first energy source; setting at least a first discharge limit and a second discharge limit of the first energy source; classifying the circuits of the plurality of circuits into at least a first category and a second category; determining a maximum energy demand based on energy used by the plurality of circuits over a period of time; Determining a minimum energy requirement based on energy used by the plurality of circuits in the first category over the period of time; determining available discharge energy based on subtracting the sum of each limit from the current state of charge multiplied by energy battery capacity, and The available discharge energy is compared to the first and second discharge limits to determine which of the plurality of circuits are to be powered by the first energy source when the available discharge energy is less than the minimum energy requirement and the available discharge energy is greater than the maximum energy requirement.
2. 2. The method of claim 1, wherein setting the first discharge limit and the second discharge limit further comprises: setting the first discharge limit to a first calibration value based on discharge energy; Setting the second discharge limit to a second calibration value based on the discharge energy, and Wherein the first calibration value is greater than the second calibration value.
3. 3. The method of claim 2, wherein classifying the circuits of the plurality of circuits into at least a first category and a second category further comprises: classifying the circuits of the plurality of circuits into the first category based on any preference of a user, and The circuits of the plurality of circuits are classified into the second category based on any preference of the user.
4. 4. The method of claim 2, wherein determining the maximum energy demand further comprises: taking a total value of power used by the plurality of circuits in the first category and multiplying the total value by a calibrated value of time.
5. 5. The method of claim 2, wherein determining the maximum energy demand further comprises: Taking the power used by the plurality of circuits in the first class multiplied by a larger value between storm time and the power used by the plurality of circuits in the first class multiplied by outage time.
6. 6. The method of claim 2, wherein determining the minimum energy requirement further comprises: taking the total value of the power used by the plurality of circuits in the second category and multiplying the total value by a calibrated value of time.
7. 7. The method of claim 2, wherein determining the minimum energy requirement further comprises: taking the power used by the plurality of circuits in the second category multiplied by a larger value between storm time and the power used by the plurality of circuits in the second category multiplied by outage time.
8. 8. The method of claim 2, wherein determining which of the plurality of circuits are to be powered by the first energy source further comprises: The plurality of circuits in the first category and the second category are powered when the available discharge energy is greater than the first discharge electrode limit.
9. 9. The method of claim 2, wherein determining which of the plurality of circuits are to be powered by the first energy source further comprises: The plurality of circuits in the second category are powered when the available discharge energy is less than the first discharge limit and the available discharge energy is greater than the second discharge limit.
10. 10. The method of claim 2, wherein determining which of the plurality of circuits are to be powered by the first energy source further comprises: The plurality of circuits in the first category and the second category are powered when the available discharge energy is greater than a maximum energy demand.

Description

Energy management system and method for optimizing power load maximizing power supply standby time Technical Field The present disclosure relates generally to wall box units and, more particularly, to a system and method for customizing and managing which circuits receive power from an external power source using a digital junction box. Background The junction box is located within a building, including homes and offices, and connects one or more power sources to one or more circuits associated with the building. Typically, the power source includes an energy grid and associated infrastructure. However, with the advent of electric vehicles, the junction box can be used to connect electric vehicles with batteries to a building. The use of an electric vehicle as a separate power source may be connected to the junction box to provide power to the building during a grid outage. Thus, while the wall box unit achieves its intended purpose, there is a need for a new and improved system and method for customizing the configuration of electrical loads based on user optimization and other external factors. Disclosure of Invention According to several aspects, a method is provided for customizing which of a plurality of circuits are connected to one of a first energy source and a second energy source using a digital junction box. The method may include determining a state of the second energy source, wherein the state includes one of an energized state and a non-energized state. When the digital junction box receives power from the second energy source, it is determined that the second energy source is in an energized state. When the digital junction box does not receive power from the second energy source, it is determined that the second energy source is in a non-energized state. The method may further include determining that the energy source is the first energy source when the state is in the unpowered state. The method may further include determining a current state of charge of the first energy source when the state is in the unpowered state. The method may further include setting at least a first discharge limit and a second discharge limit of the first energy source when the state is in the unpowered state. The method may further include classifying a circuit of the plurality of circuits into at least a first category and a second category when the state is in the unpowered state. The method may further include determining a maximum energy requirement based on energy used by the plurality of circuits over a period of time when the state is in the unpowered state. The method may further include determining a minimum energy requirement based on energy used by the plurality of circuits in the first category for a period of time when the state is in the unpowered state. The method may further include determining available discharge energy based on subtracting a sum of each limit from the current state of charge times the energy battery capacity when the state is in the unpowered state. The method may further include comparing the available discharge energy to a first discharge limit and a second discharge limit when the state is in the unpowered state to determine which of the plurality of circuits are to be powered by the first energy source when the available discharge energy is less than the minimum energy requirement and the available discharge energy is greater than the maximum energy requirement. In one additional aspect of the disclosure, setting the first discharge limit and the second discharge limit may further include setting the first discharge limit to a first calibration value based on the discharge energy and setting the second discharge limit to a second calibration value based on the discharge energy, wherein the first calibration value is greater than the second calibration value. In another aspect of the disclosure, classifying the circuits of the plurality of circuits into at least a first class and a second class may further include classifying the circuits of the plurality of circuits into the first class based on any preference of the user and classifying the circuits of the plurality of circuits into the second class based on any preference of the user. In one additional aspect of the disclosure, determining the maximum energy demand may further include taking a total value of power used by the plurality of circuits in the first category and multiplying the total value by a calibrated value of time. In another aspect of the disclosure, determining the maximum energy demand may further include taking a greater value between the power used by the plurality of circuits in the first category multiplied by the storm time and the power used by the plurality of circuits in the first category multiplied by the outage time. In one additional aspect of the disclosure, determining the minimum energy requirement may further include taking a total value of power used by the plurality of circuits in the