FUEL CELL SYSTEM AND MOBILE BODY
First Claim
1. A fuel cell system configured to allow at least one of a plurality of power supply sources, including a fuel cell and an electric storage device, to supply power to a drive device and configured to carry out low-efficiency drive to supply power from the electric storage device, wherein,when the power supply source that supplies power to the drive device is changed at an end of the low-efficiency drive, a drive amount directed to the drive device is restrained.
1 Assignment
0 Petitions
Accused Products
Abstract
A fuel cell system is provided with a fuel cell, an electric storage device, and a controller which determines a directed drive amount for a drive device. In the case where a drive request is input during a low-efficiency drive period in which power is supplied from the electric storage device, the directed drive amount after power generation by the fuel cell is begun is restrained. This arrangement allows a driving state to be smoothly changed even when power supply to the drive device is changed from power supply using the electric storage device alone to that using both the fuel cell and the electric storage device.
8 Citations
11 Claims
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1. A fuel cell system configured to allow at least one of a plurality of power supply sources, including a fuel cell and an electric storage device, to supply power to a drive device and configured to carry out low-efficiency drive to supply power from the electric storage device, wherein,
when the power supply source that supplies power to the drive device is changed at an end of the low-efficiency drive, a drive amount directed to the drive device is restrained.
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7. A fuel cell system configured to comprise a fuel cell and an electric storage device and configured to carry out low-efficiency drive to supply power from the electric storage device, the fuel cell system comprising:
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a drive torque calculating device that calculates torque required for a drive device according to a drive request signal; a required drive power calculating device that calculates a required drive power amount based on the torque; an auxiliary device loss power calculating device that calculates an auxiliary device loss amount; a required system power calculating device that calculates a required system power amount on the basis of the required drive power amount and the auxiliary device loss; a gas supply amount directing device that outputs a directed gas supply amount to the fuel cell on the basis of the required system power amount; an allowed fuel cell generating power specifying device that specifies an allowed fuel cell generating power amount to be allowed for the fuel cell on the basis of a gas flow amount actually supplied in response to the directed gas supply amount; a minimum value selecting device that outputs the required system power amount or the allowed fuel cell generating power amount, whichever is smaller; and an allowed drive power calculating device that calculates an allowed drive power amount to be allowed for the drive device on the basis of the selected power amount and a power amount that can be supplied from the electric storage device, wherein, in the case where the drive request signal is input within a low-efficiency drive period during which power is supplied from the electric storage device, the allowed drive power amount to be allowed for the drive device is restrained after a power generation from the fuel cell is begun. - View Dependent Claims (8, 9, 10)
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Specification