Electrical storage system
An electrical storage system includes an electrical storage device, a motor, a system main relay, a first charging line, a charger, a first charging relay, a second charging line, an inlet, a second charging relay and a controller. The controller is configured to control a energizing state and a non-energizing state of the system main relay, the first charging relay and the second charging relay. The controller is configured to cause the first charging relay to the non-energizing state when the second charging relay in the energizing state is subjected to adhesion.
1. An electrical storage system, comprising:
an electrical storage device configured to charge and discharge;
a motor connected to the electrical storage device via an electrode line, the motor being configured to receive electric power output from the electrical storage device to generate power allowing a vehicle to travel;
a system main relay provided on the electrode line;
a first charging line connected to the electrode line, the first charging line being configured to supply electric power from an alternative current (AC) power supply provided outside the vehicle to the electrical storage device;
a charger provided on the first charging line, the charger being configured to convert AC power from the AC power supply into direct current (DC) power and output the DC power to the electrical storage device;
a first charging relay provided on the first charging line between the electrical storage device and the charger;
a second charging line connected to the first charging line between the charger and the first charging relay, the second charging line being configured to supply electric power from a DC power supply provided outside the vehicle to the electrical storage device;
an inlet provided at an end of the second charging line and connectable with a connector connected to the DC power supply;
a second charging relay provided on the second charging line; and
a controller configured to
(a) control an energizing state and an non-energizing state of the system main relay, the first charging relay and the second charging relay, and
(b) cause the first charging relay to become the non-energizing state when the second charging relay in the energizing state is subjected to adhesion.
2. The electrical storage system according to claim 1 , wherein the first charging line is connected to the electrode line between the electrical storage device and the system main relay.
3. The electrical storage system according to claim 2 , wherein
the controller determines that the second charging relay in the energizing state is subjected to adhesion, when a driving signal causing the second charging relay to become the non-energizing state has been output and the second charging line is in the energizing state.
4. The electrical storage system according to claim 1 , wherein
the controller determines that the second charging relay in the energizing state is subjected to adhesion, when a driving signal causing the second charging relay to become the non-energizing state has been output and the second charging line is in the energizing state.
5. The electrical storage system according to claim 1 , wherein
the vehicle uses power from at least one of the motor or an engine to travel.