US 12,322,995 B2
Electric power supply system having a bidirecttional electric power conversion device and a control device that executes a first precharge processing
Osamu Kitazawa, Okazaki (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on Feb. 1, 2023, as Appl. No. 18/104,626.
Claims priority of application No. 2022-068298 (JP), filed on Apr. 18, 2022.
Prior Publication US 2023/0336087 A1, Oct. 19, 2023
Int. Cl. B60L 3/00 (2019.01); B60L 53/20 (2019.01); H02J 7/00 (2006.01); H02J 7/02 (2016.01); H02J 7/34 (2006.01); H02M 3/335 (2006.01)
CPC H02J 7/02 (2013.01) [B60L 3/0046 (2013.01); B60L 53/20 (2019.02); H02J 7/0031 (2013.01); H02J 7/345 (2013.01); B60L 2210/10 (2013.01); H02J 2207/20 (2020.01); H02M 3/33584 (2013.01)] 4 Claims
OG exemplary drawing
 
1. An electric power supply system connected to electrical equipment, the electric power supply system comprising:
an electric power storage device;
a first relay provided between a first electric power line pair and a second electric power line pair, the first electric power line pair being connected to the electric power storage device and the second electric power line pair being connected to the electrical equipment;
a bidirectional electric power conversion device that is connected to the second electric power line pair via a third electric power line pair, the bidirectional electric power conversion device being configured to be able to bidirectionally convert electric power between the second electric power line pair and an electric power facility outside of a vehicle;
a first capacitor provided between the second electric power line pair;
a control device configured to execute first precharge processing of charging the first capacitor prior to turning on the first relay;
a charging device that is connected to the first electric power line pair, the charging device being configured to convert electric power supplied from the electric power facility to charge the electric power storage device;
a second relay provided between the first electric power line pair and a fourth electric power line pair connected to the charging device; and
a second capacitor provided between the fourth electric power line pair,
wherein:
the bidirectional electric power conversion device includes a switching device connected to the third electric power line pair,
the control device starts the first precharge processing when the bidirectional electric power conversion device is activated;
the control device is configured to further execute second precharge processing of charging the second capacitor prior to turning on the second relay, and
the control device starts the first precharge processing prior to the second precharge processing when both the bidirectional electric power conversion device and the charging device are activated.