Patent application number | Description | Published |
20090169935 | Fuel Cell System - There is provided a fuel cell system capable of warming up a fuel cell while inhibiting generation of a rush current. A control device switches the connection/disconnection between a fuel cell and a short circuit by a shorting relay. The control device spends, before switching the shorting relay from disconnection to connection during starting at a low temperature, an oxidizing gas remaining in the cathode of the fuel cell by driving auxiliary devices to generate an oxidizing gas-deficient state. Then, the control device switches FC relays from ON to OFF and the shorting relay from OFF to ON to thereby complete the preparation for supplying a short-circuit current. | 07-02-2009 |
20090269628 | FUEL CELL SYSTEM, ESTIMATION DEVICE OF AMOUNT OF ANODE GAS TO BE GENERATED AND ESTIMATION METHOD OF AMOUNT OF ANODE GAS TO BE GENERATED - There is disclosed a fuel cell system or the like capable of sufficiently reducing an exhaust hydrogen concentration even in a case where a fuel cell is operated in a state of a low power generation efficiency. A bypass valve is arranged between an oxidation gas supply path and a cathode-off gas channel. In a state in which supply of an oxidation gas to a cathode falls short, pumping hydrogen is included in a cathode-off gas. Therefore, a valve open degree of the bypass valve is regulated, and a flow rate of bypass air is regulated to control the exhaust hydrogen concentration. | 10-29-2009 |
20100047630 | FUEL CELL SYSTEM AND ITS OPERATION METHOD - A fuel cell system includes: a fuel cell which generates electricity; and control means which supplies an output power from the fuel cell to a predetermined load power source while realizing a low-efficiency operation of the fuel cell, thereby driving and controlling the load power source. The control means sets the output voltage of the fuel cell during the low-efficiency operation to a value not smaller than the minimum drive voltage of the load power source. | 02-25-2010 |
20100112402 | FUEL CELL SYSTEM - An object of the present invention is to provide a fuel cell system suited for changing a drive operating point of a fuel cell at the time of low-efficiency power generation. The fuel cell system in accordance with the present invention includes a fuel cell which generates electric power by supplied reactant gases, an air compressor which adjusts the flow rate of a reactant gas supplied to the fuel cell, and a controller which controls an output current of the fuel cell by controlling the air compressor to change a drive operating point of the fuel cell. The controller sets a restriction on at least one of a current change amount and a voltage change amount per unit time when changing the drive operating point of the fuel cell in a range of low-efficiency power generation in which a power loss is larger than that in normal power generation. | 05-06-2010 |
20100227240 | FUEL CELL SYSTEM - The theme of the present invention is a fuel cell system capable of avoiding a disadvantage caused by the maintaining of a low-efficiency operation to improve the safety of a system operation. The fuel cell system is configured to perform the low-efficiency operation having a large power loss as compared with a usual operation at a predetermined low temperature to raise the temperature of a fuel cell in a short time as compared with the usual operation. The fuel cell system prohibits the low-efficiency operation to execute the usual operation, in a case where predetermined conditions are established at the predetermined low temperature. The predetermined conditions include a time when the generated power of the fuel cell cannot be consumed, a time when this generated power cannot be accumulated in a battery, or a time when the flooding of the fuel cell is generated. | 09-09-2010 |
Patent application number | Description | Published |
20080239826 | Semiconductor memory device capable of achieving narrower distribution width of threshold voltages of memory cells and method of data write in the same - When a data write sequence is started, initially, write data is latched in a data latch circuit corresponding to one memory mat. Then, a program pulse is applied to the memory mat, and data read from a memory cell, which is a data write target bit in the memory mat, is performed. Thereafter, verify determination of the memory mat is performed. After a verify operation for the memory mat is completed, a program pulse is applied to another memory mat, and a verify operation for another memory mat is performed. | 10-02-2008 |
20090063840 | Information Processing Apparatus and Program - If a defect flag stored in a CF | 03-05-2009 |
20090150661 | Information Processing Apparatus and Program - An information processing apparatus including: a first recording medium which stores a first program; a connection section which is capable of connecting to a second recording medium outside of the information processing apparatus; an instruction input section to input, while the information processing apparatus is in an activated state, an instruction for booting a second program stored in the second recording medium that is connected to the connection section on booting of the BIOS; and a controller which, performs a check when booting of a BIOS, if the second recording medium is connected and the instruction has been input while the information processing apparatus is in an activated state; in case when the second recording medium is connected and the instruction has been input is confirmed, the control section boots the second program; and in case when it is not confirmed, the control section boots the first program. | 06-11-2009 |