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US 2012/0056474 A1Published application
Integrated power system for delivery of power to a vehicle accessory
AssigneeJohnson Truck Bodies, LLC
InventorsGerald Larson, Larry Peterson, Patrick McCabe
Life of this patent
Estimating the term…
Abstract
The integrated power system provides for the integration of multiple sources of power for powering a vehicle accessory. The integrated power system provides a power sharing connection which provides for a balance of the load current demanded by the vehicle accessory. As a result, excessive engine loading is avoided.
Claims18
An integrated power system for powering a vehicle accessory comprising:
- a contactor for providing AC power from the integrated power system to the vehicle accessory;
- a power sharing connection;
- a battery package for providing DC power to said power sharing connection;
- a generator for providing DC power to said power sharing connection and said battery package;
- an inverter in electrical communication with said power sharing connection, wherein said inverter converts DC power from said generator and said battery package to AC power;
- a utility grid connection;
- a transfer switch in communication with said inverter and with said utility grid connection, said transfer switch providing electrical isolation of said inverter from said utility grid connection, said transfer switch having a first mode of operation wherein said inverter is in electrical communication with said contactor and a second mode of operation wherein said utility grid connection is in electrical communication with said contactor;
- and
- a controller in communication with said inverter, said transfer switch and said utility grid connection, said controller provides a demand signal to said inverter for activating and deactivating said inverter, and said controller provides a transfer switch signal to said transfer switch to place said transfer switch in either said first mode of operation or said second mode of operation.
6 more elements
An integrated power system for powering a vehicle refrigeration system including
- an evaporation system comprising:
- a contactor for providing AC power from the integrated power system to the evaporation system the vehicle accessory;
- a power sharing connection;
- a battery package for providing DC power to said power sharing connection;
- a generator for providing DC power to said power sharing connection and said battery package;
- an inverter in electrical communication with said power sharing connection, wherein said inverter converts DC power from said generator and said battery package to AC power;
- a utility grid connection;
- a transfer switch in communication with said inverter and with said utility grid connection, said transfer switch providing electrical isolation of said inverter from said utility grid connection, said transfer switch having a first mode of operation wherein said inverter is in electrical communication with said contactor and a second mode of operation wherein said utility grid connection is in electrical communication with said contactor;
- and
- a controller in communication with said inverter, said transfer switch and said utility grid connection, said controller provides a demand signal to said inverter for activating and deactivating said inverter, and said controller provides a transfer switch signal to said transfer switch to place said transfer switch in either said first mode of operation or said second mode of operation.
7 more elements
A method of powering a vehicle accessory associated with a vehicle said method comprising the steps of:
- providing an integrated power system for powering a vehicle accessory comprising:
- a contactor in communication with said vehicle accessory for providing AC power from the integrated power system to the vehicle accessory;
- a power sharing connection;
- a generator for providing DC power to said power sharing connection;
- a battery package for providing DC power to said power sharing connection;
- an inverter in electrical communication with said power sharing connection, wherein said inverter converts DC power provided to said power sharing connection from said generator and said battery package to AC power;
- a transfer switch in communication with said inverter and with a utility grid connection, said transfer switch providing electrical isolation of said inverter from said utility grid connection, said transfer switch having a first mode of operation wherein said inverter is in electrical communication with said contactor and a second mode of operation wherein said utility grid connection is in electrical communication with said contactor;
- and
- a controller in communication with said inverter, said transfer switch and said utility grid connection,
- providing a call for power signal to said controller indicating a need for power to be supplied to the accessory;
- in response to said call for power signal, providing a demand signal from said controller to said inverter to activate said inverter;
- in response to said call for power signal, providing a transfer switch signal to said transfer switch to place said transfer switch in a first mode of operation;
- upon activation of said inverter, converting DC power received from said power sharing connection to AC power;
- and
- providing said AC power to said contactor through said transfer switch.
12 more elements
Dependencies are inferred from the claim text.