Method for managing temperature anomaly in hydrogen tank, and system for monitoring temperatures in same

• US 9,766,194 B2
• Filed: 04/18/2014
• Issued: 09/19/2017
• Est. Priority Date: 11/15/2013
• Status: Active Grant

• Current Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Original Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Inventors: Kim, Hyung-Ki, Kim, Chang-Ho, Shim, Ji-Hyun
• Primary Examiner(s): Jagan, Mirellys
• Application Number:
  US14/256,328
• Publication Number:
  US 20150139268A1
• Time in Patent Office: 1,250 Days
• Field of Search: 374 4, 374 1, 374112, 374166
• CPC Class Codes: F17C 13/026 having the temperature as the parameter
• CPC Class Codes: F17C 2205/013 Two or more vessels
• CPC Class Codes: F17C 2221/012 Hydrogen
• CPC Class Codes: F17C 2223/0123 gaseous, e.g. CNG, GNC
• CPC Class Codes: F17C 2223/036 Very high pressure (>80 bar)
• CPC Class Codes: F17C 2250/032 using computers
• CPC Class Codes: F17C 2250/036 using alarms
• CPC Class Codes: F17C 2250/0439 Temperature
• CPC Class Codes: F17C 2250/0491 Parameters measured at or inside the vessel
• CPC Class Codes: F17C 2260/024 Improving metering
• CPC Class Codes: F17C 2270/0168 by vehicles
• CPC Class Codes: F17C 2270/0171 Trucks
• CPC Class Codes: F17C 2270/0176 Buses
• CPC Class Codes: F17C 2270/0178 Cars
• CPC Class Codes: G01N 25/72 Investigating presence of flaws
• CPC Class Codes: Y02E 60/32 Hydrogen storage

Abstract

A method for managing a temperature anomaly in a hydrogen tank includes a temperature checking step for defining temperature values detected by temperature, a temperature comparing step for comparing the temperature values with each other and then checking whether there is a specific temperature difference among the temperature values, a temperature sensor judging step for judging the temperature sensor in which the specific temperature difference is generated as an abnormal temperature sensor, and judging the temperature sensor in which the specific temperature difference is not generated as a normal temperature sensor, and an abnormal temperature sensor managing step for applying the temperature value of the temperature sensor judged as the normal temperature sensor when the hydrogen tank in which the temperature sensor judged as the abnormal temperature sensor is provided is filled or amount of fuel in the hydrogen tank is calculated.

Claims

1. A method for managing a temperature anomaly in a hydrogen tank, comprising;

a temperature checking step for defining temperature values detected by temperature sensors provided in a plurality of hydrogen tanks, respectively, as T1, T2, T3 . . . Tn, respectively;

a temperature comparing step for comparing the temperature values T1, T2, T3 . . . Tn with each other and then checking whether there is a specific temperature difference among the temperature values;

a temperature sensor judging step for judging the temperature sensor in which the specific temperature difference is generated as an abnormal temperature sensor, and judging the temperature sensor in which the specific temperature difference is not generated as a normal temperature sensor; and

an abnormal temperature sensor managing step for applying the temperature value of the temperature sensor judged as the normal temperature sensor when the hydrogen tank in which the temperature sensor judged as the abnormal temperature sensor is provided is filled or an amount of fuel in the hydrogen tank is calculated, instead of the temperature value of the temperature sensor judged as the abnormal temperature sensor.

2. The method of claim 1, wherein the specific temperature difference is 20°

C.

3. The method of claim 1, wherein monitoring of the temperature values in the temperature checking step is performed while driving a motor vehicle.

4. The method of claim 1, wherein the temperature sensor in which the specific temperature difference is generated is displayed on a cluster of a driver'"'"'s seat as a failure.

5. A system for monitoring temperature values in a hydrogen tank, comprising;

a plurality of temperature sensors provided in a plurality of hydrogen tanks, respectively, to detect temperatures of the hydrogen tanks, respectively;

a controller monitoring temperature values detected by the plurality of temperature sensors, respectively, to employ a specific temperature difference when comparing temperature values of the plurality of temperature sensors with each other, to judge a specific temperature of the temperature sensor among the plurality of temperature sensors applying to a filling controlling logic or a logic for calculating an amount of fuel having a specific temperature difference as an abnormal temperature sensor and excluding a temperature value of the abnormal temperature sensor to the filling controlling logic or the logic for calculating an amount of fuel; and

a displaying device provided on a cluster of a driver'"'"'s seat to display the temperature sensor judged as a failure.

6. The system of claim 5, wherein a pressure of 700 bars and an allowable temperature of −

40˜

85°

C. are applied to each of the plurality of hydrogen tanks, and the specific temperature difference provided as a basis for judging whether the temperature sensor is abnormal is 20°

C.