US 12,296,701 B2
Electrically powered vehicle and method of controlling charging of electrically powered vehicle
Yoshiyuki Tsuchiya, Nagoya (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Aichi-ken (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Aichi-ken (JP)
Filed on Mar. 11, 2022, as Appl. No. 17/692,168.
Claims priority of application No. 2021-041588 (JP), filed on Mar. 15, 2021.
Prior Publication US 2022/0289057 A1, Sep. 15, 2022
Int. Cl. B60L 53/22 (2019.01); B60L 1/00 (2006.01); B60L 53/24 (2019.01); B60L 53/50 (2019.01); B60L 53/62 (2019.01); H02J 7/00 (2006.01); H02M 3/158 (2006.01)
CPC B60L 53/22 (2019.02) [B60L 1/00 (2013.01); B60L 53/24 (2019.02); B60L 53/50 (2019.02); B60L 53/62 (2019.02); H02J 7/007182 (2020.01); H02M 3/1582 (2013.01); B60L 2210/12 (2013.01); B60L 2210/14 (2013.01); B60L 2210/30 (2013.01); H02J 7/0049 (2020.01); H02J 2207/20 (2020.01)] 10 Claims
OG exemplary drawing
 
1. An electrically powered vehicle, comprising:
a power storage device chargeable with electric power supply supplied from an external power supply;
a voltage sensor configured to detect an inter-terminal voltage of the power storage device;
a booster having a high-voltage side connected to the power storage device, the booster being configured to boost a voltage of electric power provided to a low-voltage side of the booster and to provide electric power of the boosted voltage to the high-voltage side;
a first path through which the electric power supplied from the external power supply is supplied to the high-voltage side of the booster;
a second path through which the electric power supplied from the external power supply is supplied to the low-voltage side of the booster;
a charging relay configured to selectively switch a path for the electric power supplied from the external power supply to the first path or the second path; and
a controller configured to control the charging relay in accordance with the inter-terminal voltage of the power storage device detected by the voltage sensor, wherein
the controller is configured to
control the charging relay to select the first path in response to the power storage device being charged with the electric power supplied from the external power supply and the inter-terminal voltage of the power storage device detected by the voltage sensor being lower than a voltage of the electric power supplied from the external power supply, and
switch the charging relay such that the path for the electric power is changed from the first path to the second path, and to activate the booster, in response to the power storage device being charged with the electric power supplied from the external power supply and the inter-terminal voltage of the power storage device detected by the voltage sensor exceeding the voltage of the electric power supplied from the external power supply.