Vehicle charging device
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorTsuyoshi Nishio
Life of this patent
Estimating the term…
Abstract
Provided is a vehicle charging device (170) that uses a power source (101) outside of a vehicle (160) to charge a battery (115) installed in the vehicle (160). A charger (114) charges the battery (115). A voltage measurement unit (111) measures the input voltage corresponding to the input current in the charger (114). A current measurement unit (112) measures the input current (Ic) in the charger (114). A control unit (113) changes the input currents (Ic) of the charger (114) into a plurality of values, and controls the input current (Ic) when the input voltage (Vc) has changed, according to the corresponding relationship between the input currents (Ic), when each has been changed, and the measured input voltages (Vc).
Claims6
An in-vehicle charging apparatus installed in a vehicle and configured to charge a storage battery installed in the vehicle, using a power source that is connected to an electric device and that is provided outside the vehicle, the apparatus comprising:
- a charger that receives a variable input current value flowing from the power source for charging the storage battery;
- a measurement section that measures the input current value of the charger and an input voltage value on the side of the power source of the charger;
- and
- a control section that controls the input current value of the charger, wherein:
- the control section varies the input current value of the charger into a plurality of values, and calculates a correspondence between the input current values measured by the measurement section during the varying, and input voltage values corresponding to the respective input current values;
- and
- the control section controls, when an input voltage value varies while the input current value measured by the measurement section remains the same during charge of the storage battery, the input current value of the charger so that the input current value of the charger corresponds to the input voltage value before the varying, based on the correspondence.
Dependencies are inferred from the claim text.