Steven E Mathison

US Patent:

7191808, Mar 20, 2007

Filed:

Jun 9, 2005

Appl. No.:

11/148480

Inventors:

Steven R. Mathison - Torrance CA, US

Assignee:

Honda Motor Co., Ltd. - Tokyo

International Classification:

B65B 1/04

US Classification:

141 94, 361212, 361217

Abstract:

A driver interactive system to indirectly monitor hydrogen fuel cell vehicle electrical charge potential through vehicle to ground resistance measurements, and to permit refueling only when vehicle to ground resistance does not exceed a predetermined safe level thereby reducing the possibility of a static discharge during the refill of high pressure storage tanks in hydrogen powered vehicles.

US Patent:

7325561, Feb 5, 2008

Filed:

Dec 2, 2004

Appl. No.:

11/001881

Inventors:

Steven R. Mathison - Torrance CA, US
Shiro Matsuo - Torrance CA, US

Assignee:

Honda Motor Co., Ltd. - Tokyo

International Classification:

F17D 1/00

US Classification:

137256, 137899, 141197

Abstract:

A system for increasing the overall efficiency of a hydrogen fueled vehicle and refilling station infrastructure wherein the process of (1) consuming pressurized hydrogen gas that is stored in on board tanks used to power hydrogen fueled motor vehicles and (2) refueling the vehicle tanks at a hydrogen refilling station after the available on board fuel supply in the tanks is consumed is controlled according to a predetermined sequence involving the utilization of the hydrogen in the on board tanks.

US Patent:

20130269828, Oct 17, 2013

Filed:

Mar 15, 2013

Appl. No.:

13/843537

Inventors:

- Tokyo, JP
Steven MATHISON - Torrance CA, US

International Classification:

F17C 5/06

US Classification:

141 4

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.

US Patent:

20200182410, Jun 11, 2020

Filed:

Aug 2, 2019

Appl. No.:

16/530346

Inventors:

- Tokyo, JP
Steven R. Mathison - Rancho Palos Verdes CA, US

International Classification:

F17C 13/02
F17C 5/06
F17C 5/04

Abstract:

A hydrogen filling station accounts for variabilities between tank systems when filling compressed gas tanks. To identify a theta value that accurately reflects the conditions and performance of a particular tank system, one or more test parameters are determined, and one or more margins associated with one or more test fills of a fuel tank are identified, where each test fill corresponds to a respective test parameter. A proposed theta value for controlling one or more fuel deliveries to the fuel tank is determined based on the test parameters and the margins. In this manner, the theta value enables hydrogen refueling of a compressed gas tank to be improved.

US Patent:

20200173607, Jun 4, 2020

Filed:

Aug 2, 2019

Appl. No.:

16/530415

Inventors:

- Tokyo, JP
Steven R. Mathison - Rancho Palos Verdes CA, US

International Classification:

F17C 5/00
F17C 13/02

Abstract:

A plurality of sensors detect a plurality of fuel temperatures at a filling station, and a controller communicates with the sensors to identify the fuel temperatures, uses the fuel temperatures to determine a plurality of candidate fill times, and compares the candidate fill times to identify a control value for controlling a delivery of fuel. The fuel temperatures include a first fuel temperature corresponding to a first location at the filling station and a second fuel temperature corresponding to a second location at the filling station, and the candidate fill times include a first candidate fill time corresponding to the first fuel temperature and a second candidate fill time corresponding to the second fuel temperature.

US Patent:

20190184847, Jun 20, 2019

Filed:

Dec 15, 2017

Appl. No.:

15/844185

Inventors:

- Tokyo, JP
Steven R. Mathison - Rancho Palos Verdes CA, US

International Classification:

B60L 11/18
F17C 13/02
G05D 7/06

Abstract:

Validating of a fill control formula used by a hydrogen dispenser for dispensing hydrogen is described. Template data of the hydrogen dispenser related to dispensing of hydrogen by the hydrogen dispenser over a period of time is received, as well as static parameter values. One or more fill operations for dispensing hydrogen to one or more hydrogen fuel tanks may be simulated based on the template data and static parameters, as well as based on the fill control formula utilized in the hydrogen dispenser. A comparison of one or more fill operation parameter values calculated by simulating the one or more fill operations and one or more values of one or more similar fill operation parameters in the template data may be output on a user interface.

US Patent:

20180356270, Dec 13, 2018

Filed:

Aug 21, 2018

Appl. No.:

16/106686

Inventors:

- Tokyo, JP
Steven R. Mathison - Torrance CA, US

International Classification:

G01F 22/00
F17C 5/06
F17C 13/02
G01F 22/02
F17C 5/00

Abstract:

According to one or more aspects, systems and techniques for hydrogen fueling with integrity checks are provided herein. Communicated parameters measured by on-board sensors of a vehicle may be cross-referenced against calculated parameters measured by sensors of a fueling station. For example, communicated parameters relating to a compressed hydrogen storage system (CHSS) tank of a vehicle to be fueled may be received at different time intervals. Calculated parameters may be calculated based on a mass of hydrogen fuel dispensed by a hydrogen fueling station from a reference point to one of the time intervals and densities of the CHSS tank of the vehicle at respective time intervals. An error may be calculated between the communicated parameters and the calculated parameters. A fueling mode, such as a conservative fueling mode or a non-conservative fueling mode, may be determined based on the calculated error.

US Patent:

20180320822, Nov 8, 2018

Filed:

May 8, 2017

Appl. No.:

15/588752

Inventors:

- Tokyo, JP
Steven R. Mathison - Torrance CA, US

International Classification:

F17C 5/06
F17C 7/00

Abstract:

According to one or more aspects, a hydrogen fueling station is provided and includes one or more hydrogen fuel storage tanks, a pressure control device positioned downstream from the hydrogen fuel storage tanks, a dispenser positioned downstream from the pressure control device, and a heat load reduction line which forms a circulation loops from a first point downstream of the pressure control device to one or more of the hydrogen fuel storage tanks.