CROSS-REFERENCE TO RELATED APPLICATION

This application claims priority to Japanese Patent Application No. 2020-033528 filed on Feb. 28, 2020, incorporated herein by reference in its entirety.

BACKGROUND

1. Technical Field

The present disclosure relates to a vehicle and a charging system.

2. Description of Related Art

Conventionally, various vehicles that can charge a power storage device with an electric power supplied from a charging station have been proposed.

For example, a vehicle described in Japanese Unexamined Patent Application Publication No. 2019-47544 (JP 2009-47544 A) includes an inlet to which a charging connector of a charging station is connected, a lock device that locks the charging connector to the inlet, and a power storage device.

In a state where the charging connector is connected to the inlet and the power storage device is being charged, the vehicle requests the charging station to supply a current having a first current value when the charging connector is locked to the inlet.

In a state where the charging connector is connected to the inlet and the power storage device is being charged, the vehicle requests the charging station to supply a current having a second current value when the charging connector is in an unlocked state where the charging connector is not locked to the inlet. The second current value is smaller than the first current value.

SUMMARY

When the unlocked state is detected, the vehicle reduces the required current value to the charging station.

The charging station controls the output power supplied to the vehicle by feedback control. Here, an output current (output power) may hunt, overshoot, or undershoot in a case where the output power is changed drastically when the required current value (required power value) from the vehicle is changed.

A follow-up time required to make the output power output from the charging station follow the required current value (required power value) from the vehicle is long.

As a result, it takes a predetermined time for the charging station to change a current value of the output current from the first current value to the second current value when the vehicle detects the unlocked state during charging.

On the other hand, when the charging connector is in the unlocked state, the charging connector may be pulled out, such that there is a need to reduce the current output from the charging station in a short time.

The present disclosure has been made in a view of the problems, and an object thereof is to provide a vehicle and a charging system that can reduce an output current in a short time when it is detected that a charging connector is in an unlocked state during charging.

A first aspect of the present disclosure relates to a vehicle including an inlet configured to be connected to a charging connector provided in a charging station, a lock device configured to switch between a locked state where the charging connector is locked to the inlet and an unlocked state where the charging connector is removable from the inlet, a power storage device configured to be charged with an electric power supplied through the charging connector, and a control device configured to control charging of the power storage device. In a state where the charging connector is connected to the inlet and the power storage device is being charged, the control device stops charging when the lock device is in the unlocked state.

The vehicle according to the first aspect may further include a charger configured to receive an input power supplied through the charging connector and output an output power to the power storage device by adjusting the received input power. The charger may perform feedback control of the output power such that the output power approaches a required power received from the control device. The charger may not perform the feedback control when charging is stopped.

The vehicle according to the first aspect may further include a charger configured to receive an input power supplied through the charging connector and output an output power to the power storage device by adjusting the received input power. The charger may be driven such that the output power becomes a required power received from the control device. A rate of change at which the charger changes the output power when the control device stops charging may be higher than a rate of change at which the charger changes the output power such that the output power becomes the required power.

In the vehicle according to the first aspect, the control device may stop charging when the lock device is in the unlocked state, and restart charging of the power storage device after a predetermined period has elapsed from stop of charging.

In the vehicle according to the first aspect, a first charging power when charging of the power storage device is restarted may be smaller than a second charging power before charging of the power storage device is stopped.

A second aspect of the present disclosure relates to a charging system including a charging station provided with a charging connector and a vehicle. The vehicle includes an inlet to which the charging connector is connected, a cable lock device configured to switch between a locked state where the charging connector connected to the inlet is locked to the inlet and an unlocked state where the charging connector connected to the inlet is removable from the inlet, a power storage device configured to be charged with an electric power supplied through the charging connector, and a control device configured to control charging of the power storage device. In a state where the charging connector is connected to the inlet and the power storage device is being charged, the control device stops charging when the cable lock device is in the unlocked state.

With the vehicle and the charging system according to the present disclosure, the output current can be reduced in a short time when it is detected that the charging connector is in the unlocked state during charging.

