Charging management apparatus
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsTomokazu Masuda, Kenya Segawa
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Abstract
An on-board charging management apparatus includes a vehicle-side earth line connected with an external-side earth line of an external power unit; a vehicle-side signal line connected with an external-side signal line of the external power unit; and a detection signal line configured to connect the vehicle-side signal line and the vehicle-side earth line. Presence or absence of a disconnection of the external-side earth line and the vehicle-side earth line is determined based on an electric current value or a voltage value of the detection signal line, when the external power unit is in a connected state. As a consequence, the on-board charging management apparatus can detect a disconnection of the earth line at the time of charging an on-board electric storage device.
Claims6
An on-board charging management apparatus that charges an on-board electric storage device with electric power from an external power unit, the charging management apparatus comprising:
- a vehicle-side earth line connected with an external-side earth line of the external power unit;
- an external-side connection signal line connected to the external-side earth line on an external power unit side, the external-side connection signal line is connected with a vehicle-side connection signal line;
- a vehicle-side signal line connected with an external-side signal line of the external power unit;
- a detection circuitry positioned on a vehicle side;
- and
- a disconnection determination device configured to determine presence or absence of a disconnection of at least one of the external-side earth line or the vehicle-side earth line, based on at least one of an electric current or a voltage of the detection circuitry, when the external power unit is in a connected state based on an electric current value of the external-side connection signal line
- wherein
- the disconnection determination device is configured to prohibit charging when a disconnection of the external-side earth line, the vehicle-side earth line, or the external-side earth line and the vehicle-side earth line is determined.
Dependencies are inferred from the claim text.