System and method for vehicle based uninterruptable power supply
First Claim
1. A vehicle-based uninterruptable power supply (UPS) system comprising:
- an energy storage system located on-board a vehicle, the energy storage system configured to provide electric power for at least one of driving an electric motor of the vehicle and powering auxiliary devices of the vehicle and to also generate DC power transferable to an external load;
an DC-AC inverter connected to the on-board energy storage system to receive the DC power therefrom and invert the DC power to an AC power useable by the external load;
a charging device located on-board the vehicle and connected to the on-board energy storage system to provide a recharging power thereto; and
a control system configured to;
cause the energy storage system to provide power transferable to the external load by way of the DC-AC inverter;
determine one of a state-of-charge (SOC) and a voltage of the energy storage system while the energy storage system is providing power to the external load; and
selectively operate the charging device to provide the recharging power to the energy storage system to maintain the one of the SOC and the voltage of the energy storage system within a pre-determined range while still providing power to the external load, such that the energy storage system provides uninterruptable power to the external load.
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Accused Products
Abstract
A system and method for controlling a vehicle-based source of uninterruptable power is disclosed. The vehicle-based UPS includes an energy storage system located on-board a vehicle and configured to generate DC power transferable to an external load, and an DC-AC inverter connected to the on-board energy storage system to receive the DC power therefrom and invert the DC power to an AC power useable by the external load. The vehicle-based UPS also includes a charging device located on-board the vehicle and connected to the on-board energy storage system to provide recharging power thereto and a control system. The control system is configured to determine one of a state-of-charge (SOC) and a voltage of the energy storage system and selectively operate the charging device to provide the recharging power to the energy storage system to maintain the SOC or voltage of the energy storage system within a pre-determined range.
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Citations
26 Claims
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1. A vehicle-based uninterruptable power supply (UPS) system comprising:
an energy storage system located on-board a vehicle, the energy storage system configured to provide electric power for at least one of driving an electric motor of the vehicle and powering auxiliary devices of the vehicle and to also generate DC power transferable to an external load; an DC-AC inverter connected to the on-board energy storage system to receive the DC power therefrom and invert the DC power to an AC power useable by the external load; a charging device located on-board the vehicle and connected to the on-board energy storage system to provide a recharging power thereto; and a control system configured to; cause the energy storage system to provide power transferable to the external load by way of the DC-AC inverter; determine one of a state-of-charge (SOC) and a voltage of the energy storage system while the energy storage system is providing power to the external load; and selectively operate the charging device to provide the recharging power to the energy storage system to maintain the one of the SOC and the voltage of the energy storage system within a pre-determined range while still providing power to the external load, such that the energy storage system provides uninterruptable power to the external load. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for supplying uninterruptable power comprising:
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detecting connection of an external load to an on-board energy storage system of a vehicle, the energy storage system being configured to provide electric power for at least one of driving an electric motor of the vehicle and powering auxiliary devices of the vehicle and to also generate power transferable to the external load; providing power from the on-board energy storage system to the external load upon connection thereto; detecting one of a voltage and a state of charge (SOC) of the on-board energy storage system; and if the one of the voltage and the SOC of the on-board energy storage system is below a pre-determined threshold, then activating an on-board charging unit of the vehicle connected to the on-board energy storage system to supply a recharging power thereto and maintain the one of the SOC and the voltage of the on-board energy storage system within a pre-determined range while the on-board energy storage system provides power to the external load; otherwise, if the one of the voltage and the SOC of the on-board energy storage system is above the pre-determined threshold, then keeping the on-board charging unit of the vehicle in a non-activated state while the on-board energy storage system is providing power to the external load. - View Dependent Claims (17, 18, 19, 20)
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21. A control system for controlling the supply of uninterruptable power from a vehicular on-board energy storage system to an external load, the control system programmed to:
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detect connection of an external load to an on-board energy storage system of a vehicle; measure one of a voltage and a state of charge (SOC) of the on-board energy storage system upon connection of the external load; selectively activate a charging device connected to the on-board energy storage system to supply a recharging power thereto so as to maintain the one of the voltage and the SOC of the on-board energy storage system within a pre-determined range, wherein selectively activating the charging device comprises; activating the charging device to supply the recharging power thereto if the one of the voltage and the SOC of the on-board energy storage system is outside the pre-determined range; and deactivating the charging device if the one of the voltage and the SOC of the on-board energy storage system is within the pre-determined range; and operate the on-board energy storage system of the vehicle to provide power to the external load while maintaining the one of the voltage and the SOC of the on-board energy storage system within the pre-determined range, such that the on-board energy storage system provides uninterruptable power to the external load. - View Dependent Claims (22, 23, 24, 25, 26)
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Specification