US 12,334,855 B2
Vehicle power source device
Toshio Ikeyama, Toyota (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on Nov. 9, 2023, as Appl. No. 18/388,281.
Claims priority of application No. 2023-007036 (JP), filed on Jan. 20, 2023.
Prior Publication US 2024/0250631 A1, Jul. 25, 2024
Int. Cl. H02P 29/032 (2016.01); B60L 50/60 (2019.01); B60L 53/00 (2019.01); H02J 7/00 (2006.01); H02P 23/14 (2006.01); H02P 27/06 (2006.01); H02P 29/68 (2016.01)
CPC H02P 29/032 (2016.02) [B60L 50/60 (2019.02); B60L 53/00 (2019.02); H02J 7/0063 (2013.01); H02P 23/14 (2013.01); H02P 27/06 (2013.01); H02P 29/68 (2016.02); H02J 2207/20 (2020.01)] 5 Claims
OG exemplary drawing
 
1. A vehicle power source device that is applied to a vehicle including an electric motor for traveling, the electric motor including coils in a plurality of phases,
the vehicle power source device comprising:
a battery configured to supply electric power to the electric motor;
an electric power conversion device that is connected in parallel with the battery and that includes switching elements and current sensors for respective phases of the electric motor; and
a control device configured to control the electric power conversion device such that electric power supplied from an external power source through a neutral point of the electric motor is boosted and thereafter is supplied to the battery during charging of the battery, wherein
when an abnormality in one of the current sensors corresponding to the plurality of phases is detected during the charging, the control device configured to execute a ripple restraining control to continue the charging, the ripple restraining control including controlling the switching elements in remaining normal phases of the plurality of phases such that a ripple current to be generated by operation of the switching elements in the normal phases does not exceed a ripple current threshold, and
the ripple current threshold corresponds to an allowable value of the ripple current to be generated by operation of the switching elements in the plurality of phases when there is no abnormality in any of the current sensors corresponding to the plurality of phases.