[미국특허]
Method and system for tank refilling using active fueling speed control
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F17C-005/00
F17C-005/06
출원번호
US-0725099
(2015-05-29)
등록번호
US-9605804
(2017-03-28)
발명자
/ 주소
Mathison, Steve
출원인 / 주소
Honda Motor Co., Ltd.
대리인 / 주소
Rankin, Hill & Clark LLP
인용정보
피인용 횟수 :
0인용 특허 :
70
초록▼
In one or more embodiments, a system and method for filling a compress gas tank or fuel tank is provided, including determining a fill time (tfinal) predicted to produce a gas final temperature (Tfinal) based on one or more coefficients selected from a lookup table, mass average dispenser gas temper
In one or more embodiments, a system and method for filling a compress gas tank or fuel tank is provided, including determining a fill time (tfinal) predicted to produce a gas final temperature (Tfinal) based on one or more coefficients selected from a lookup table, mass average dispenser gas temperature for control (MATC), and alpha, determining a pressure ramp rate (RR), delivering gas to the compressed gas tank at a control pressure based on the pressure RR during a first portion of filling the compressed gas tank, determining a mass average enthalpy (MAE) and density, and delivering gas to the compressed gas tank at a target ending fueling pressure based on the density and the gas final temperature during a second portion of filling the compressed gas tank.
대표청구항▼
1. A method of filling a compressed gas tank, comprising: determining a fill time (tfinal) predicted to produce a gas final temperature (Tfinal) based on one or more coefficients selected from a lookup table, mass average dispenser gas temperature for control (MATC), and alpha;determining a pressure
1. A method of filling a compressed gas tank, comprising: determining a fill time (tfinal) predicted to produce a gas final temperature (Tfinal) based on one or more coefficients selected from a lookup table, mass average dispenser gas temperature for control (MATC), and alpha;determining a pressure ramp rate (RR);delivering gas to the compressed gas tank at a control pressure based on the pressure ramp rate (RR) during a first portion of filling the compressed gas tank;determining a mass average enthalpy (MAE) and density; anddelivering gas to the compressed gas tank at a target ending fueling pressure based on the density and the gas final temperature during a second portion of filling the compressed gas tank. 2. The method of filling the compressed gas tank of claim 1, comprising: measuring an ambient temperature (Tamb) and an initial pressure in the gas tank (Pinit); andsetting an expected end of fill mass average dispenser gas temperature (MATexpected). 3. The method of filling the compressed gas tank of claim 2, wherein one or more of the coefficients are selected from the lookup table based on the ambient temperature (Tamb) and the initial pressure in the gas tank (Pinit). 4. The method of filling the compressed gas tank of claim 2, wherein one or more of the coefficients are selected from the lookup table using Tamb(above) and Tamb(below) values which are directly above and below a corresponding Tamb value in the lookup table. 5. The method of filling the compressed gas tank of claim 4, wherein tfinal is calculated by interpolating between different tfinal values calculated using Tamb(above) and Tamb(below). 6. The method of filling the compressed gas tank of claim 1, wherein the lookup table is selected based on a tank category for the compressed gas tank. 7. The method of filling the compressed gas tank of claim 1, wherein MATC is calculated based on a time interval, an expected end of fill mass average dispenser gas temperature (MATexpected), mass average temperature measured from t=0 (MATM0), mass average temperature measured from t=30 (MATM30), or a weighted average of MATM30 and MATM0. 8. The method of filling the compressed gas tank of claim 1, wherein the mass average enthalpy (MAE) is calculated as a function of pressure and temperature at a dispenser filling the compressed gas tank. 9. The method of filling the compressed gas tank of claim 1, wherein the density is calculated based on the mass average enthalpy (MAE). 10. The method of filling the compressed gas tank of claim 1, comprising a process check, including monitoring for one or more stop conditions. 11. The method of filling the compressed gas tank of claim 10, wherein one or more of the stop conditions is based on pressure at the dispenser or temperature at the dispenser. 12. The method of filling the compressed gas tank of claim 1, comprising determining a second fill time (tfinal) based on one or more coefficients selected from a second lookup table, wherein the lookup table associated with the fill time corresponds to a first tank category, andthe second lookup table associated with the second fill time corresponds to a second tank category. 13. The method of filling the compressed gas tank of claim 12, comprising selecting the larger of the fill time and the second fill time as the fill time (tfinal). 14. The method of filling the compressed gas tank of claim 1, wherein the pressure ramp rate (RR) is determined based on the fill time (tfinal). 15. The method of filling the compressed gas tank of claim 1, wherein the pressure ramp rate (RR) is determined based on the equation: RR(i)=Pfinal-Pcontrol(i)tfinal(i)*(Pfinal-PinitialPfinal-Pmin)-t(i). 16. A system for filling a compressed gas tank, comprising: a controller for: determining a fill time (tfinal) predicted to produce a gas final temperature (Tfinal) based on one or more coefficients selected from a lookup table of one or more lookup tables, mass average dispenser gas temperature for control (MATC), and alpha;determining a pressure ramp rate (RR); anddetermining a mass average enthalpy (MAE) and density; anda dispenser having a flow regulator for:delivering gas to the compressed gas tank at a control pressure based on the pressure ramp rate (RR) during a first portion of filling the compressed gas tank; anddelivering gas to the compressed gas tank at a target ending fueling pressure based on the density and the gas final temperature during a second portion of filling the compressed gas tank. 17. The system of claim 16, comprising: an ambient temperature sensor for measuring an ambient temperature (Tamb); anda pressure sensor for measuring a pressure in the gas tank (Pinit). 18. The system of claim 16, comprising a database component having one or more of the lookup tables, each table comprising one or more of the coefficients, wherein respective lookup tables are indicative of one or more tank categories associated with one or more conditions. 19. The system of claim 16, comprising a mass flow meter for measuring a flow rate of the delivered gas.
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