Apparatus and method for controlling fuel tank

1. An apparatus for controlling a single fuel tank, the apparatus comprising: the single fuel tank having a plurality of volume parts; and a controller configured to control a charging condition of a fuel charged in the single fuel tank and to selectively control use of the fuel charged in the plurality of volume parts based on an amount of the fuel used or a state of the single fuel tank, wherein the single fuel tank includes: a chamber including a first volume part on one side and a second volume part on the other side with respect to a partition wall, opposing sides of the partition wall being in direct contact with the fuel; a first valve provided on the one side of the chamber and configured to adjust opening or closing of the first volume part; a second valve provided on the other side of the chamber and configured to adjust opening or closing of the second volume part; and a third valve provided in the partition wall and configured to adjust opening or closing for communication between the first volume part and the second volume part, and the controller controls the first valve to be opened and the second valve to be closed or controls the first valve to be closed and the second valve to be opened in a state in which the third valve is opened to charge the fuel in the single fuel tank, and the controller controls one of the first valve and the second valve to be opened, another of the first valve and the second valve to be closed, and the third valve to be opened, in response to an input to increase fuel output.

2. The apparatus of claim 1 , wherein the controller controls the first valve, the second valve, and the third valve to be closed after charging the fuel in the single fuel tank.

3. The apparatus of claim 1 , wherein the controller controls the third valve to be opened so that the fuel charged in the first volume part and the fuel charged in the second volume part communicate with each other.

4. The apparatus of claim 1 , wherein the controller is configured to:

control the first valve to be opened and the second valve and the third valve to be closed to use the fuel charged in the first volume part;

control the first valve and the third valve to be closed and the second valve to be opened to use the fuel charged in the second volume part; and

control the first valve and the third valve to be opened and the second valve to be closed or control the second valve and the third valve to be opened and the first valve to be closed to use the fuel charged in both the first and second volume parts.

5. The apparatus of claim 1 , wherein the controller controls the fuel charged in the first volume part, the second volume part, or both the first volume part and the second volume part to be selectively used based on an internal temperature value of the first volume part or an internal temperature value of the second volume part.

6. The apparatus of claim 5 , wherein the controller determines whether the internal temperature value of the first volume part or the internal temperature value of the second volume part is within a predetermined minimum and maximum range, corresponds to a predetermined safe temperature value, and is within a predetermined prediction range when the fuel charged in the single fuel tank is used.

7. A method of controlling a single fuel tank, the method comprising: controlling a charging condition to charge a fuel in the single fuel tank which includes a plurality of volume parts; and selectively controlling use of the fuel charged in the plurality of volume parts based on an amount of the fuel used or a state of the single fuel tank, wherein the controlling of the charging condition of the fuel includes: adjusting opening or closing of a first volume part through a first valve provided on one side of a chamber including the first volume part on one side and a second volume part on the other side with respect to a partition wall, opposing sides of the partition wall being in direct contact with the fuel; adjusting opening or closing of the second volume part through a second valve provided on the other side of the chamber; adjusting opening or closing for communication between the first volume part and the second volume part through a third valve provided in the partition wall; and controlling the first valve to be opened and the second valve to be closed or controlling the first valve to be closed and the second valve to be opened in a state in which the third valve is opened to charge the fuel in the single fuel tank, and the method further comprises: controlling one of the first valve and the second valve to be opened, another of the first valve and the second valve to be closed, and the third valve to be opened, in response to an input to increase fuel output.

8. The method of claim 7 , wherein the controlling of the charging condition of the fuel includes:

controlling the first valve, the second valve, and the third valve to be closed after charging the fuel in the single fuel tank.

9. The method of claim 7 , wherein the selectively controlling of the use of the charged fuel includes:

opening the third valve so that the fuel charged in the first volume part and the fuel charged in the second volume part communicate with each other.

10. The method of claim 7 , wherein the selectively controlling of the use of the charged fuel includes:

controlling the first valve to be opened and the second valve and the third valve to be closed to use the fuel charged in the first volume part;

controlling the first valve and the third valve to be closed and the second valve to be opened to use the fuel charged in the second volume part; and

controlling the first valve and the third valve to be opened and the second valve to be closed or controlling the second valve and the third valve to be opened and the first valve to be closed to use the fuel charged in both the first and second volume parts.

11. The method of claim 7 , wherein the selectively controlling of the use of the charged fuel includes:

controlling the fuel charged in the first volume part, the second volume part, or both the first and second volume parts to be selectively used based on an internal temperature value of the first volume part or an internal temperature value of the second volume part.

12. The method of claim 11 , wherein the selectively controlling of the use of the charged fuel includes:

determining whether the internal temperature value of the first volume part or the internal temperature value of the second volume part is within a predetermined minimum and maximum range, corresponds to a predetermined safe temperature value, and a predetermined prediction value range when the fuel charged in the single fuel tank is used.