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US 7,923,161 B2Granted
Fuel cell system
AssigneeToyota Jidosha Kabushiki Kaisha
InventorShuji Hirakata
Life of this patent
Estimating the term…
Abstract
An ECU (114) determines a connection state between a vehicle (200) and an external power supply (300) based on a resistance detected by a resistance detector (106). When the vehicle (200) and the external power supply (300) are connected, power supply from an FC (102) to a drive motor (204) is interrupted by turning off a switch (116) to prevent wiring (105) from having breakage etc. by movement of the vehicle (200), thus inhibiting movement of the vehicle (200).
Claims6
A fuel cell system comprising:
- a fuel cell mounted in a movable body;
- external connecting means connecting said movable body to an external power source provided outside said movable body;
- connection determining means determining whether or not said movable body is connected to said external power source via said external connecting means by detecting a resistance via said external connecting means;
- an auxiliary machine unit utilized for maintaining and managing an operating environment of said fuel cell;
- and
- power supply control means that controls a supply of electric power to said auxiliary machine unit from said fuel cell and said external power source, wherein:
- said power supply control means includes connection switching means that switches over a state between said external connecting means and said auxiliary machine unit to a connected state or a disconnected state, and
- said connection determining means determines whether said external power source is connected to said external connecting means or not when a connection between said external connecting means and said auxiliary machine unit is disconnected by said connection switching means.
5 more elements
A fuel cell system comprising:
- a fuel cell body mounted in a movable body;
- an external connecting unit connecting said movable body to an external power source provided outside said movable body;
- and
- a connection determining unit determining whether or not said movable body is connected to said external power source via said external connecting unit by detecting a resistance via said external connecting unit;
- an auxiliary machine unit utilized for maintaining and managing an operating environment of said fuel cell body;
- and
- a power supply control unit that controls a supply of electric power to said auxiliary machine unit from said fuel cell body and said external power source, wherein:
- said power supply control unit includes a connection switching unit that switches over a state between said external connecting unit and said auxiliary machine unit to a connected state or a disconnected state, and
- said connection determining unit determines whether said external power source is connected to said external connecting unit or not when a connection between said external connecting unit and said auxiliary machine unit is disconnected by said connection switching unit.
6 more elements
Dependencies are inferred from the claim text.