摘要:
An electric bower supply system includes a power supply controlling element (62) configured to switch a plug-out power supply which supplies electric power (75) from a fuel cell (20) or a battery (21) to a house (70) and a plug-in power supply which supplies electric power from a commercial power source (75) disposed in the house (70) to a fuel cell vehicle (1a) on the basis of a vehicular power state of the fuel cell (20) and the battery (21) detected by a vehicular power state detecting element (61) and a household power state of the commercial power source (75) detected by a household power state detecting element (81) when a receptacle (10) of the fuel cell vehicle (1a) and an outlet (71) of the commercial power source (75) have been connected by a power cable (100).
摘要:
A vehicle power supply device which prevents a lack of power supply to the motor and insufficient recovery of regenerative electric power of the motor at the time of switching between power running and regeneration. First input-output sections (3a, 3b) of a first DC-DC converter (3) are connected to second input-output sections (4d, 4e) of a PDU (4), second input-output sections (3c, 3d) of the first DC-DC converter (3) are connected to a fuel cell (1) and a capacitor (2), first input-output sections (20a, 20b) of a second DC-DC converter (20) are connected to second input-output sections (4d, 4e) of the PDU (4), and second input-output sections (20c, 20d) of the second DC-DC converter (20) are connected to a lithium-ion battery (21). A voltage control means (31) places the first DC-DC converter (3) or the second DC-DC converter (20) in a direct connection state and controls an output voltage of the other DC-DC converter according to an output voltage of the DC-DC converter placed in the direct connection state during the power running of the motor (5) and during regeneration thereof.
摘要:
A fuel cell power supply device capable of externally supplying electric power in a stable manner is provided. The fuel cell power supply device includes a fuel cell (1), a capacitor (2) connected in parallel to the fuel cell, a voltage boosting means (3) having an input unit connected in parallel to the fuel cell and the capacitor and an output unit connected to a load (M), and for boosting the output voltages of the fuel cell and the capacitor to supply electric power by the boosted voltages to the load, a secondary battery (6) connected to the output unit of the voltage boosting means via a voltage conversion means (7), a first electric power supply unit (10) connected in parallel to the fuel cell and the capacitor and capable of externally supplying electric power, and an electric power supply control means (30) for controlling supply of electric power from the fuel cell, the capacitor, and the secondary battery to the first electric power supply unit, based on the output of the fuel cell and the charge levels of the capacitor and the secondary battery, in a range where the charge level of the capacitor is not lower than its discharge threshold value and the charge level of the secondary battery is not lower than its discharge threshold value.
摘要:
A power supply device for vehicles, output units (10a, 10b) thereof are connected to a motor (5), includes a fuel cell (1) which is connected to the output units (10a, 10b), a capacitor (2) which is connected in parallel to the fuel cell (1), a lithium ion battery (21) which is connected in parallel to the capacitor (2) through a DC/DC converter (20), and a current control means (32) which limits an output current of the lithium ion battery (21) to at most an output upper-limit current (Ibout_lmt) when power is supplied to the motor (5) from the lithium ion battery (21) during a power running operation of the motor (5), and limits an input current into the lithium ion battery (21) to at most an input upper-limit current smaller than the output upper-limit current (Ibin_lmt) through the DC/DC converter (20) when regenerative power of the motor (5) is recovered into the lithium ion battery (21) during a regenerative operation of the motor (5).
摘要:
It is an object of the present invention to provide a fuel cell power supply device that can realize a reduction in size and improvement of durability of an accumulating unit while maintaining output performance that is applicable when large output is requested. The fuel cell power supply device includes: an output judging unit 31 that judges whether the output of a fuel cell 1 is equal to or higher than a predetermined level with respect to electric power requested by a load 5; and a power-supply controlling unit 30 that limits, when it is not judged that the output of the fuel cell 1 is equal to or higher than the predetermined level, the output of an accumulating unit 21 to be equal to or smaller than a first output limit value for allowing continuous output in first output time an limits, when it is judged that the output of the fuel cell 1 is equal to or higher than the predetermined level, within second output time shorter than the first output time, the output of the accumulating unit 21 to be equal to or smaller than a second output limit value, which is larger than the first output limit value, for allowing continuous output in the second output time.
摘要:
A power supply system includes a fuel cell, a capacitor connected in parallel to the fuel cell, a voltage boost means for boosting output voltages from the fuel cell and the capacitor to supply the electric motor with electric power resulting from the boosted voltages, a voltage control means for further boosting an output voltage from the voltage boost means, a secondary battery connected to the voltage control means, an external power source connecting means connected to the one end of the voltage boost means and in parallel with the fuel cell and for receiving supply of electric power from an external power source, and an electronic control unit which charges the secondary battery from the external power source by controlling step-up ratios of the voltage boost means and the voltage control means such that a voltage applied to the secondary battery during the charging becomes a desired voltage.
摘要:
A power supply system includes a fuel cell, a capacitor connected in parallel to the fuel cell, a voltage boost means for boosting output voltages from the fuel cell and the capacitor to supply the electric motor with electric power resulting from the boosted voltages, a voltage control means for further boosting an output voltage from the voltage boost means, a secondary battery connected to the voltage control means, an external power source connecting means connected to the one end of the voltage boost means and in parallel with the fuel cell and for receiving supply of electric power from an external power source, and an electronic control unit which charges the secondary battery from the external power source by controlling step-up ratios of the voltage boost means and the voltage control means such that a voltage applied to the secondary battery during the charging becomes a desired voltage.
摘要:
The present invention provides a fuel cell vehicle capable of displaying information with high usability to a driver or the like in view of appropriately planning a task related to the fuel cell vehicle. A second indicator (I2) displays an available electric power supply of a fuel cell (11), a capacitor (12) and a second cell (16), respectively. A third indicator (I3) displays a remained fuel amount. A fourth indicator (I4) displays a charge amount of the capacitor (12) and the second cell (16), respectively.
摘要:
A vehicle power supply device which prevents a lack of power supply to the motor and insufficient recovery of regenerative electric power of the motor at the time of switching between power running and regeneration. First input-output sections (3a, 3b) of a first DC-DC converter (3) are connected to second input-output sections (4d, 4e) of a PDU (4), second input-output sections (3c, 3d) of the first DC-DC converter (3) are connected to a fuel cell (1) and a capacitor (2), first input-output sections (20a, 20b) of a second DC-DC converter (20) are connected to second input-output sections (4d, 4e) of the PDU (4), and second input-output sections (20c, 20d) of the second DC-DC converter (20) are connected to a lithium-ion battery (21). A voltage control means (31) places the first DC-DC converter (3) or the second DC-DC converter (20) in a direct connection state and controls an output voltage of the other DC-DC converter according to an output voltage of the DC-DC converter placed in the direct connection state during the power running of the motor (5) and during regeneration thereof.
摘要:
Provided is a power system capable of supplying power steadily to the outside even at a low temperature. A power supply unit disposed in the power system is configured to calculate an amount of power needed to heat a fuel cell to a temperature threshold when the temperature thereof measured by an FC sensor is below the temperature threshold, set an SOC lower limit by adding the calculated amount of power to a discharge threshold of a secondary battery, and control the power supply to a first power supply portion in the range of the SOC lower limit.