Fuel tank structure
AssigneeToyota Jidosha Kabushiki Kaisha
InventorShuichi Aso
Life of this patent
Estimating the term…
Abstract
There is provided a fuel tank structure, the fuel tank structure including (1) a bag-shaped member that partitions a space within a fuel tank into a first space at an outer side and a second space at an inner side, (2) a first pressure sensor that senses pressure of the first space, (3) a second pressure sensor that senses pressure of the second space, (4) a pump that reduces pressure of the first space, and (5) a control section that, in a case in which the pressure of the first space is higher than a first threshold value, judges that a hole has formed in the fuel tank, and, in a case in which the pressure of the second space is lower than a second threshold value, judges that a hole has formed in the bag-shaped member.
Claims2
A fuel tank structure comprising:
- a fuel tank that is installed in an automobile and that is configured to accommodate fuel;
- a bag-shaped member that is fixed to a ceiling portion of an interior of the fuel tank, and that partitions a space within the fuel tank into a first space at an outer side of the bag-shaped member and a second space at an inner side of the bag-shaped member, and that, by inflating or contracting in accordance with a height of a liquid surface of fuel accommodated in the fuel tank, maintains a state of contact with the fuel;
- a first pressure sensor that senses a pressure of the first space;
- a second pressure sensor that senses a pressure of the second space;
- a pump that reduces the pressure of the first space;
- and
- an electronic control unit that operates the pump, and acquires the pressure of the first space sensed by the first pressure sensor and the pressure of the second space sensed by the second pressure sensor after a predetermined time has elapsed from operation of the pump, and, in a case in which the pressure of the first space is higher than a first threshold value, judges that a hole has formed in the fuel tank, and, in a case in which the pressure of the second space is lower than a second threshold value, judges that a hole has formed in the bag-shaped member.
Dependencies are inferred from the claim text.