Patent US5964309A successfully refreshed from Google Patents.
US5964309A
Expired / Lapsed
US
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Power supply system, electric vehicle with power supply system mounted thereon, and method of regulating amount of fuel supply
Assignee: Aisin AW Co Ltd
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Filing: 1997-07-25
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Granted: 1999-10-12
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Expires: 2017-07-25
Abstract
Abstract A power supply system 10 with a stack of fuel cells 20 and a storage battery 30 includes a remaining charge monitor 42 for measuring the remaining charge of the storage battery 30. At the time of starting the power supply system 10, the remaining charge monitor 42 detects the remaining charge of the storage battery 30. The power supply system 10 estimates output electric current of the fuel cells 20 based on the observed remaining charge of the storage battery 30 and an amount of electric power required for auxiliary machinery 34, and supplies required amounts of gases to the fuel cells 20 based on the estimated output electric current.
Inventors
- 👤 Yoshio Kimura
- 👤 Yasuhiro Nonobe
- 👤 Munehisa Horiguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:16
CPC Classifications
H; H02; H02J; H02J7/00; H02J7/34; B; B60; B60L; B60L58/00; B60L58/10; B60L58/30; B60L58/31; B60L58/32; B60L58/33; B60L58/34; B60L58/40; H01; H01M; H01M10/00; H01M10/42; H01M10/44; H01M10/48; H01M10/484; H01M16/00; H01M16/003; H01M16/006; H01M8/00; H01M8/04; H01M8/04223; H01M8/04225; H01M8/04298; H01M8/043; H01M8/04302; H01M8/04313; H01M8/04537; H01M8/04544; H01M8/04567; H01M8/04604; H01M8/04626; H01M8/04694; H01M8/04746; H01M8/04753; H01M8/04955; H01M8/24; H01M8/241; H01M8/2457; H01M8/04082; H01M8/04089; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y02E60/30; Y02E60/50; Y02T; Y02T10/00; Y02T10/60; Y02T10/70; Y02T90/00; Y02T90/40
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
163 words
A power supply system comprising a stack of fuel cells and a storage battery, which are connected parallel to each other and also to a loading, wherein said stack of fuel cells and said storage battery supply electric power to said loading, said power supply system comprising: remaining charge detection means for detecting a remaining charge of said storage battery; amount-of-loading detection means for detecting a total amount of said loading; charge-discharge state estimation means for estimating a charge-discharge state of said storage battery, based on the results of detection by said remaining charge detection means and said amount-of-loading detection means; amount-of-fuel supply determination means for determining a required amount of a fuel for power generation in said stack of fuel cells, based on the charge-discharge state of said storage battery estimated by said charge-discharge state estimation means; and fuel supply means for supplying the required amount of said fuel determined by said amount-of-fuel supply determination means to said stack of fuel cells.
Claim 2
Dependent Claim
163 words
A power supply system comprising a stack of fuel cells and a storage battery, which are connected parallel to each other and also to a loading, wherein said stack of fuel cells and said storage battery supply electric power to said loading, said power supply system comprising: remaining charge detection means for detecting a remaining charge of said storage battery; amount-of-loading detection means for detecting a total amount of said loading; charge-discharge state estimation means for estimating a charge-discharge state of said storage battery, based on the results of detection by said remaining charge detection means and said amount-of-loading detection means; amount-of-fuel supply determination means for determining a required amount of a fuel for power generation in said stack of fuel cells, based on the charge-discharge state of said storage battery estimated by said charge-discharge state estimation means; and fuel supply means for supplying the required amount of said fuel determined by said amount-of-fuel supply determination means to said stack of fuel cells.
Claim 3
Dependent Claim
194 words
A power supply system comprising a stack of fuel cells and a storage battery, which are connected parallel to each other and also to a loading, wherein said stack of fuel cells and said storage battery supply electric power to said loading, said power supply system comprising: remaining charge detection means for detecting a remaining charge of said storage battery; charge-discharge state estimation means for, at the time of starting said power supply system, estimating a charge-discharge state of said storage battery, based on a predetermined amount of loading, which represents electric power consumed by machinery driven at the time of starting said power supply system, out of said loading and the result of detection by said remaining charge detection means; amount-of-fuel supply determination means for, at least when said storage battery is in a charging condition, determining a required amount of a fuel for power generation in said stack of fuel cells, based on the charge-discharge state of said storage battery estimated by said charge-discharge state estimation means; and fuel supply means for supplying the required amount of said fuel determined by said amount-of-fuel supply determination means to said stack of fuel cells.
Claim 4
Dependent Claim
194 words
A power supply system comprising a stack of fuel cells and a storage battery, which are connected parallel to each other and also to a loading, wherein said stack of fuel cells and said storage battery supply electric power to said loading, said power supply system comprising: remaining charge detection means for detecting a remaining charge of said storage battery; charge-discharge state estimation means for, at the time of starting said power supply system, estimating a charge-discharge state of said storage battery, based on a predetermined amount of loading, which represents electric power consumed by machinery driven at the time of starting said power supply system, out of said loading and the result of detection by said remaining charge detection means; amount-of-fuel supply determination means for, at least when said storage battery is in a charging condition, determining a required amount of a fuel for power generation in said stack of fuel cells, based on the charge-discharge state of said storage battery estimated by said charge-discharge state estimation means; and fuel supply means for supplying the required amount of said fuel determined by said amount-of-fuel supply determination means to said stack of fuel cells.
Claim 5
Dependent Claim
207 words
An electric vehicle having a motor rotated by electrical energy and means for transmitting a rotational force of said motor to an axle, thereby producing a driving force for said vehicle, said electric vehicle having a power supply system mounted thereon, said power supply system comprising a stack of fuel cells and a storage battery, which are connected parallel to each other and also to a loading comprising said motor, wherein said stack of fuel cells and said storage battery supply electric power to said loading, said power supply system comprising: remaining charge detection means for detecting a remaining charge of said storage battery; amount-of-loading detection means for detecting a total amount of said loading; charge-discharge state estimation means for estimating a charge-discharge state of said storage battery, based on the results of detection by said remaining charge detection means and said amount-of-loading detection means; amount-of-fuel supply determination means for determining a required amount of a fuel for power generation in said stack of fuel cells, based on the charge-discharge state of said storage battery estimated by said charge-discharge state estimation means; and fuel supply means for supplying the required amount of said fuel determined by said amount-of-fuel supply determination means to said stack of fuel cells.
Claim 6
Dependent Claim
207 words
An electric vehicle having a motor rotated by electrical energy and means for transmitting a rotational force of said motor to an axle, thereby producing a driving force for said vehicle, said electric vehicle having a power supply system mounted thereon, said power supply system comprising a stack of fuel cells and a storage battery, which are connected parallel to each other and also to a loading comprising said motor, wherein said stack of fuel cells and said storage battery supply electric power to said loading, said power supply system comprising: remaining charge detection means for detecting a remaining charge of said storage battery; amount-of-loading detection means for detecting a total amount of said loading; charge-discharge state estimation means for estimating a charge-discharge state of said storage battery, based on the results of detection by said remaining charge detection means and said amount-of-loading detection means; amount-of-fuel supply determination means for determining a required amount of a fuel for power generation in said stack of fuel cells, based on the charge-discharge state of said storage battery estimated by said charge-discharge state estimation means; and fuel supply means for supplying the required amount of said fuel determined by said amount-of-fuel supply determination means to said stack of fuel cells.
Claim 7
Dependent Claim
238 words
An electric vehicle having a motor rotated by electrical energy and means for transmitting a rotational force of said motor to an axle, thereby producing a driving force for said vehicle, said electric vehicle having a power supply system mounted thereon, said power supply system comprising a stack of fuel cells and a storage battery, which are connected parallel to each other and also to a loading comprising said motor, wherein said stack of fuel cells and said storage battery supply electric power to said loading, said power supply system comprising: remaining charge detection means for detecting a remaining charge of said storage battery; charge-discharge state estimation means for, at the time of starting said power supply system, estimating a charge-discharge state of said storage battery, based on a predetermined amount of loading, which represents electric power consumed by machinery driven at the time of starting said power supply system, out of said loading and the result of detection by said remaining charge detection means; amount-of-fuel supply determination means for, at least when said storage battery is in a charging condition, determining a required amount of a fuel for power generation in said stack of fuel cells, based on the charge-discharge state of said storage battery estimated by said charge-discharge state estimation means; and fuel supply means for supplying the required amount of said fuel determined by said amount-of-fuel supply determination means to said stack of fuel cells.
Claim 8
Dependent Claim
238 words
An electric vehicle having a motor rotated by electrical energy and means for transmitting a rotational force of said motor to an axle, thereby producing a driving force for said vehicle, said electric vehicle having a power supply system mounted thereon, said power supply system comprising a stack of fuel cells and a storage battery, which are connected parallel to each other and also to a loading comprising said motor, wherein said stack of fuel cells and said storage battery supply electric power to said loading, said power supply system comprising: remaining charge detection means for detecting a remaining charge of said storage battery; charge-discharge state estimation means for, at the time of starting said power supply system, estimating a charge-discharge state of said storage battery, based on a predetermined amount of loading, which represents electric power consumed by machinery driven at the time of starting said power supply system, out of said loading and the result of detection by said remaining charge detection means; amount-of-fuel supply determination means for, at least when said storage battery is in a charging condition, determining a required amount of a fuel for power generation in said stack of fuel cells, based on the charge-discharge state of said storage battery estimated by said charge-discharge state estimation means; and fuel supply means for supplying the required amount of said fuel determined by said amount-of-fuel supply determination means to said stack of fuel cells.
Claim 9
Dependent Claim
173 words
In a power supply system comprising a stack of fuel cells and a storage battery, which are connected parallel to each other and also to a loading, wherein said stack of fuel cells and said storage battery supply electric power to said loading, a method of regulating an amount of a fuel supplied to said stack of fuel cells for power generation in said stack of fuel cells, said method comprising the steps of: (a) detecting a remaining charge of said storage battery; (b) detecting a total amount of said loading; (c) estimating a charge-discharge state of said storage battery, based on the remaining charge detected in said step (a) and the total amount of said loading detected in said step (b); (d) determining a required amount of said fuel for power generation in said stack of fuel cells, based on the charge-discharge state of said storage battery estimated in said step (c); and (e) supplying the required amount of said fuel determined in said step (d) to said stack of fuel cells.
Claim 10
Dependent Claim
173 words
In a power supply system comprising a stack of fuel cells and a storage battery, which are connected parallel to each other and also to a loading, wherein said stack of fuel cells and said storage battery supply electric power to said loading, a method of regulating an amount of a fuel supplied to said stack of fuel cells for power generation in said stack of fuel cells, said method comprising the steps of: (a) detecting a remaining charge of said storage battery; (b) detecting a total amount of said loading; (c) estimating a charge-discharge state of said storage battery, based on the remaining charge detected in said step (a) and the total amount of said loading detected in said step (b); (d) determining a required amount of said fuel for power generation in said stack of fuel cells, based on the charge-discharge state of said storage battery estimated in said step (c); and (e) supplying the required amount of said fuel determined in said step (d) to said stack of fuel cells.
Claim 11
Dependent Claim
200 words
In a power supply system comprising a stack of fuel cells and a storage battery, which are connected parallel to each other and also to a loading, wherein said stack of fuel cells and said storage battery supply electric power to said loading, a method of regulating an amount of a fuel supplied to said stack of fuel cells for power generation in said stack of fuel cells, said method comprising the steps of: (a) detecting a remaining charge of said storage battery; (b) at the time of starting said power supply system, estimating a charge-discharge state of said storage battery, based on a predetermined amount of loading, which represents electric power consumed by machinery driven at the time of starting said power supply system, out of said loading and the remaining charge detected in said step (a); (c) at least when said storage battery is in a charging condition, determining a required amount of said fuel for power generation in said stack of fuel cells, based on the charge-discharge state of said storage battery estimated in said step (b); and (d) supplying the required amount of said fuel determined in said step (c) to said stack of fuel cells.
Claim 12
Dependent Claim
200 words
In a power supply system comprising a stack of fuel cells and a storage battery, which are connected parallel to each other and also to a loading, wherein said stack of fuel cells and said storage battery supply electric power to said loading, a method of regulating an amount of a fuel supplied to said stack of fuel cells for power generation in said stack of fuel cells, said method comprising the steps of: (a) detecting a remaining charge of said storage battery; (b) at the time of starting said power supply system, estimating a charge-discharge state of said storage battery, based on a predetermined amount of loading, which represents electric power consumed by machinery driven at the time of starting said power supply system, out of said loading and the remaining charge detected in said step (a); (c) at least when said storage battery is in a charging condition, determining a required amount of said fuel for power generation in said stack of fuel cells, based on the charge-discharge state of said storage battery estimated in said step (b); and (d) supplying the required amount of said fuel determined in said step (c) to said stack of fuel cells.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-10-11 | 2003-04-12 | 2003-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-10-11 | 2007-04-12 | 2007-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-10-11 | 2011-04-12 | 2011-10-12 | $7700.00 | Window Closed / Lapsed |