| 摘要 |
<p>Provided is a vehicle charging device which is capable of preventing a situation in which charging cannot be carried out, and is capable of preventing a situation in which other electrical appliances in a house, or the like, cannot be used, by controlling the input current of a vehicle charger by taking the fluctuation range of the output voltage of a power source into consideration. The vehicle charging device (170) charges a battery (115) installed in a vehicle (160) from a power source (101) which is outside the vehicle (160). The charger (114) is connected to the external power source (101), and uses a variable input current for charging the battery (115). A control unit (113): changes the input currents of the charger (114) into a plurality of values, and determines lower threshold values for the appropriate ranges of the input current and the input voltage, according to the corresponding relationship between the input currents, when each has been changed, and the input voltages measured by a voltage measurement unit (111); and controls the input current when the input voltage has changed, according to the corresponding relationship and the lower threshold values, after charging has started.</p> |
