Fuel cell system
First Claim
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1. A fuel cell system, comprising:
- a system controlling device programmed to execute control of components of the fuel cell system, the system controlling device including;
a required power generation amount calculating unit which calculates a required power generation amount of a fuel cell;
a target operational state calculating unit which calculates a target operational state corresponding to the required power generation amount;
an operational state detecting unit which detects an operational state of the fuel cell;
a correction power generation amount calculating unit which calculates a correction power generation amount used for correcting the required power generation amount based on a deviation between the target operational state and the detected operational state;
an allowable power generation amount calculating unit which calculates an allowable power generation amount which the fuel cell can stably generate based on the detected operational state; and
an output power generation amount determining unit which determines an output power generation amount of the fuel cell based on a relation between the allowable power generation amount and a power generation amount obtained by correcting the required power generation amount by the correction power generation amount,wherein the output power generation amount determining unit determines the allowable power generation amount as the output power generation amount when the power generation amount obtained by correcting the required power generation amount by the correction power generation amount is equal to or larger than the allowable power generation amount, and the output power generation amount determining unit determines the power generation amount obtained by correcting the required power generation amount as the output power generation amount when the power generation amount obtained by correcting the required power generation amount by the correction power generation amount is smaller than the allowable power generation amount.
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Abstract
A fuel cell system for a vehicle, controlling a power generation amount of a fuel cell. A required power generation amount of the fuel cell and a target operational state corresponding to required power generation amount are calculated. An operational state of the fuel cell is detected. A correction power generation amount used for correcting the required power generation amount and an allowable power generation amount that the fuel cell can stably generate based on the operational state of the fuel cell are also calculated. Further, an output power generation amount of the fuel cell is determined based on a relation between the allowable power generation amount and the power generation amount obtained by correcting the required power generation amount by the correction power generation amount.
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Citations
11 Claims
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1. A fuel cell system, comprising:
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a system controlling device programmed to execute control of components of the fuel cell system, the system controlling device including; a required power generation amount calculating unit which calculates a required power generation amount of a fuel cell; a target operational state calculating unit which calculates a target operational state corresponding to the required power generation amount; an operational state detecting unit which detects an operational state of the fuel cell; a correction power generation amount calculating unit which calculates a correction power generation amount used for correcting the required power generation amount based on a deviation between the target operational state and the detected operational state; an allowable power generation amount calculating unit which calculates an allowable power generation amount which the fuel cell can stably generate based on the detected operational state; and an output power generation amount determining unit which determines an output power generation amount of the fuel cell based on a relation between the allowable power generation amount and a power generation amount obtained by correcting the required power generation amount by the correction power generation amount, wherein the output power generation amount determining unit determines the allowable power generation amount as the output power generation amount when the power generation amount obtained by correcting the required power generation amount by the correction power generation amount is equal to or larger than the allowable power generation amount, and the output power generation amount determining unit determines the power generation amount obtained by correcting the required power generation amount as the output power generation amount when the power generation amount obtained by correcting the required power generation amount by the correction power generation amount is smaller than the allowable power generation amount. - View Dependent Claims (2, 3, 4, 6, 7, 8, 9, 10, 11)
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5. A fuel cell system, comprising:
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a system controlling device programmed to execute control of components of the fuel cell system, the system controlling device including; a required power generation amount calculating unit which calculates a required power generation amount of a fuel cell; a target operational state calculating unit which calculates a target operational state corresponding to the required power generation amount; an operational state detecting unit which detects an operational state of the fuel cell; a correction power generation amount calculating unit which calculates a correction power generation amount used for correcting the required power generation amount based on a deviation between the target operational state and the detected operational state; a storage device chargeable amount calculating unit which calculates a chargeable amount of a storage device; and an output power generation amount determining unit programmed to determine an output power generation amount of the fuel cell based on a relation between the chargeable amount and a power generation amount obtained by correcting the required power generation amount by the correction power generation amount, wherein the output power generation amount determining unit determines the chargeable amount as the output power generation amount when the power generation amount obtained by correcting the required power generation amount by the correction power generation amount is equal to or larger than the chargeable amount, and the output power generation amount determining unit determines the power generation amount obtained by correcting the required power generation amount as the output power generation amount when the power generation amount obtained by correcting the required power generation amount by the correction power generation amount is smaller than the chargeable amount.
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Specification
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Current AssigneeToyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
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Original AssigneeToyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
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InventorsUmayahara, Kenji
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Primary Examiner(s)Gilliam, Barbara
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Assistant Examiner(s)Enin-Okut, Edu E
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Application NumberUS11/913,376Publication NumberTime in Patent Office2,377 DaysField of Search429428-451US Class Current429/428CPC Class CodesB60L 58/33 by coolingB60L 58/40 for controlling a combinati...H01M 10/44 Methods for charging or dis...H01M 16/006 of fuel cells with recharge...H01M 8/04089 of gaseous reactantsY02E 60/10 Energy storage using batteriesY02E 60/50 Fuel cellsY02T 10/70 Energy storage systems for ...Y02T 90/40 Application of hydrogen tec...
