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US 2026/0200325 A1Published application
Systems and methods for hydrogen tank assembly diagnostics
AssigneeHyroad Networks LLC
InventorsRahul Shetty, Renju Zacharia
Life of this patent
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Abstract
The present disclosure provides a hydrogen storage system for a fuel cell electric vehicle (FCEV) that includes a controller in electronic communication with a plurality of pressure sensors, each pressure sensor coupled to a hydrogen storage tank of a plurality of hydrogen storage tanks and a non-transitory computer-readable storage medium in electronic communication with the controller. The controller may be capable of identifying a stuck closed on tank valve (OTV) fault and a tank leak fault using a plurality of pressure measurements from the plurality of pressure sensors.
Claims20
A hydrogen storage system for a fuel cell electric vehicle (FCEV), comprising:
- a controller in electronic communication with a plurality of pressure sensors, each pressure sensor coupled to a hydrogen storage tank of a plurality of hydrogen storage tanks;
- and
- a non-transitory computer-readable storage medium in electronic communication with the controller, having instructions stored thereon that, in response to execution by the controller, cause the controller to perform operations comprising:
- receiving, by the controller, a plurality of pressure measurements from the plurality of pressure sensors;
- determining, by the controller, a median pressure value of the plurality of pressure measurements;
- calculating, by the controller, differences between the median pressure value and each pressure measurement of the plurality of pressure measurements;
- in response to finding that at least one difference is less than a first pressure threshold, operating the controller to cause at least one of (i) providing an audible or visual alert, (ii) reducing a displayed amount of fuel available for operation of the FCEV by subtracting an amount of fuel in a hydrogen storage tank associated with the pressure sensor having the difference from the sum of the amount of fuel in the plurality of hydrogen storage tanks, or (iii) transmitting a stuck closed on tank valve (OTV) fault;
- and
- in response to finding that at least one difference is greater than a second pressure threshold, operating the controller to cause at least one of (i) providing an audible or visual alert, (ii) commanding one or more OTVs to close, (iii) modifying an operation of the FCEV, or (iv) transmitting, by the controller, a tank leak fault.
6 more elements
An article of manufacture including a tangible, non-transitory computer-readable storage medium in electronic communication with a controller, having instructions stored thereon that, in response to execution by the controller, cause the controller to perform operations comprising:
- receiving, by the controller, a plurality of pressure measurements from a plurality of pressure sensors, each pressure sensor coupled to a hydrogen storage tank of a plurality of hydrogen storage tanks;
- determining, by the controller, a median pressure value of the plurality of pressure measurements;
- calculating, by the controller, differences between the median pressure value and each pressure measurement of the plurality of pressure measurements;
- determining, by the controller, the absolute value of the difference between the first pressure and the second pressure to yield an absolute pressure difference;
- in response to finding that at least one difference is less than a first pressure threshold, operating the controller to cause at least one of (i) providing an audible or visual alert, (ii) reducing a displayed amount of fuel available for operation of the FCEV by subtracting an amount of fuel in a hydrogen storage tank associated with the pressure sensor having the difference from the sum of the amount of fuel in the plurality of hydrogen storage tanks, or (iii) transmitting a stuck closed on tank valve (OTV) fault;
- and
- in response to finding that at least one difference is greater than a second pressure threshold, operating the controller to cause at least one of (i) providing an audible or visual alert, (ii) commanding one or more OTVs to a closed position, (iii) modifying an operation of the FCEV, or (iv) transmitting, by the controller, a tank leak fault.
4 more elements
A method, comprising:
- receiving, by a controller, a plurality of pressure measurements from a plurality of pressure sensors, each pressure sensor coupled to a hydrogen storage tank of a plurality of hydrogen storage tanks;
- determining, by the controller, a median pressure value of the plurality of pressure measurements;
- calculating, by the controller, differences between the median pressure value and each pressure measurement of the plurality of pressure measurements;
- determining, by the controller, the absolute value of the difference between the first pressure and the second pressure to yield an absolute pressure difference;
- in response to finding that at least one difference is less than a first pressure threshold, operating the controller to cause at least one of (i) providing an audible or visual alert, (ii) reducing a displayed amount of fuel in the plurality of hydrogen storage tanks by subtracting an amount of fuel in a hydrogen storage tank associated with the pressure sensor having the difference from the sum of the amount of fuel in the plurality of hydrogen storage tanks, or (iii) transmitting a stuck closed on tank valve (OTV) fault;
- and
- in response to finding that at least one difference is greater than a second pressure threshold, operating the controller to cause at least one of (i) providing an audible or visual alert, (ii) commanding one or more OTVs to a closed position, (iii) modifying an operation of a fuel cell electric vehicle (FCEV) having the plurality of hydrogen storage tanks coupled thereto, or (iv) transmitting, by the controller, a tank leak fault.
4 more elements
Dependencies are inferred from the claim text.