公开(公告)号：US20140290790A1

公开(公告)日：2014-10-02

申请号：US14300229

申请日：2014-06-09

Applicant: Honda Motor Co., Ltd.

Inventor： Steve Mathison

IPC: F17C13/02 ,  F17C5/06

CPC classification number: F17C5/06 ,  F17C5/007 ,  F17C2201/0109 ,  F17C2201/054 ,  F17C2203/0604 ,  F17C2203/0619 ,  F17C2203/0624 ,  F17C2221/012 ,  F17C2221/033 ,  F17C2223/0123 ,  F17C2223/0153 ,  F17C2223/0161 ,  F17C2223/036 ,  F17C2225/0123 ,  F17C2225/036 ,  F17C2250/043 ,  F17C2250/0439 ,  F17C2250/0443 ,  F17C2250/0491 ,  F17C2250/0495 ,  F17C2250/0631 ,  F17C2250/0694 ,  F17C2260/022 ,  F17C2260/023 ,  F17C2260/025 ,  F17C2260/026 ,  F17C2265/065 ,  F17C2270/0139 ,  F17C2270/0168 ,  F17C2270/0176 ,  Y02E60/321

Abstract: Disclosed is an improved analytical method that can be utilized by hydrogen filling stations for directly and accurately calculating the end-of-fill temperature in a hydrogen tank that, in turn, allows for improvements in the fill quantity while tending to reduce refueling time. The calculations involve calculation of a composite heat capacity value, MC, from a set of thermodynamic parameters drawn from both the tank system receiving the gas and the station supplying the gas. These thermodynamic parameters are utilized in a series of simple analytical equations to define a multi-step process by which target fill times, final temperatures and final pressures can be determined. The parameters can be communicated to the station directly from the vehicle or retrieved from a database accessible by the station. Because the method is based on direct measurements of actual thermodynamic conditions and quantified thermodynamic behavior, significantly improved tank filling results can be achieved.