Fuel tank system
First Claim
1. A fuel tank system comprising:
- a fuel tank mounted on a vehicle;
a first pressure detector arranged in the fuel tank to detect pressure in the fuel tank;
a second pressure detector arranged in a position different from the position of the first pressure detector to detect pressure in the fuel tank; and
an abnormality determination part that determines abnormality in the first pressure detector or the second pressure detector on the basis of a detection result obtained by the first pressure detector and a detection result obtained by the second pressure detector.
2 Assignments
0 Petitions
Accused Products
Abstract
A first pressure sensor capable of detecting pressure in a narrow pressure range with a high accuracy to detect internal pressure in the fuel tank is arranged in the fuel tank, and a second pressure sensor that is capable of detecting pressure in a wide pressure range with a low accuracy with respect to the first pressure sensor, and is capable of detecting internal pressure of the fuel tank, is arranged in vapor piping between the fuel tank and a tank blocking valve. When a filler lid switch is operated to release internal pressure of the fuel tank, the first pressure sensor detects internal pressure of the fuel tank so that an operation of the tank blocking valve is controlled on the basis of the detection result, and then a filler lid is opened when the internal pressure of the fuel tank becomes the atmospheric pressure.
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Citations
12 Claims
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1. A fuel tank system comprising:
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a fuel tank mounted on a vehicle; a first pressure detector arranged in the fuel tank to detect pressure in the fuel tank; a second pressure detector arranged in a position different from the position of the first pressure detector to detect pressure in the fuel tank; and an abnormality determination part that determines abnormality in the first pressure detector or the second pressure detector on the basis of a detection result obtained by the first pressure detector and a detection result obtained by the second pressure detector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification