Charging apparatus for vehicle
First Claim
1. A charging apparatus for a vehicle equipped with a first power supply storing power for operating a motor for driving the vehicle, a second power supply storing power for operating auxiliary machinery of the vehicle, and a connector configured to be connectable to an external power supply external to the vehicle, the charging apparatus comprising:
- a first converter converting power on an electric path between said first power supply and said motor and supplying the converted power to said second power supply;
a second converter having a lower capacitance than that of said first converter, converting power on an electric path between said first power supply and said connector, and supplying the converted power to said second power supply; and
a control device controlling said second converter,when said first converter is abnormal, said control device performing precharging causing said second converter to operate such that said second power supply has a greater voltage or amount of power stored than when said first converter is normal.
1 Assignment
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Accused Products
Abstract
A vehicle is equipped with a main battery, an auxiliary machinery battery, a high-capacitance DC/DC converter which converts power on an electric path between the main battery and a motor-generator for traveling to supply the converted power to the auxiliary machinery battery, a low-capacitance sub power supply which converts power on an electric path between the main battery and an external power supply to supply the converted power to the auxiliary machinery battery, and a control device which controls the sub power supply. The control device determines whether or not the DC/DC converter has an abnormality, and operates the sub power supply to perform precharging when it is determined that the DC/DC converter is abnormal. An auxiliary machinery battery voltage V2 when precharging has been performed is set to a value which is higher by a predetermined voltage a than an auxiliary machinery battery voltage V1 when precharging has not been performed.
21 Citations
6 Claims
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1. A charging apparatus for a vehicle equipped with a first power supply storing power for operating a motor for driving the vehicle, a second power supply storing power for operating auxiliary machinery of the vehicle, and a connector configured to be connectable to an external power supply external to the vehicle, the charging apparatus comprising:
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a first converter converting power on an electric path between said first power supply and said motor and supplying the converted power to said second power supply; a second converter having a lower capacitance than that of said first converter, converting power on an electric path between said first power supply and said connector, and supplying the converted power to said second power supply; and a control device controlling said second converter, when said first converter is abnormal, said control device performing precharging causing said second converter to operate such that said second power supply has a greater voltage or amount of power stored than when said first converter is normal. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification