US 12,395,083 B2
Boost converter control device and control method of boost converter control device
Taiki Nakano, Anjo (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on Sep. 13, 2023, as Appl. No. 18/466,280.
Claims priority of application No. 2022-199607 (JP), filed on Dec. 14, 2022.
Prior Publication US 2024/0204667 A1, Jun. 20, 2024
Int. Cl. H02P 27/06 (2006.01); B60L 50/60 (2019.01); B60L 58/25 (2019.01); B60L 58/27 (2019.01); H01M 10/48 (2006.01); H01M 10/615 (2014.01); H01M 10/625 (2014.01); H01M 10/63 (2014.01); H01M 10/657 (2014.01); H02M 3/158 (2006.01)
CPC H02M 3/1586 (2021.05) [B60L 50/60 (2019.02); B60L 58/25 (2019.02); B60L 58/27 (2019.02); H01M 10/486 (2013.01); H01M 10/615 (2015.04); H01M 10/625 (2015.04); H01M 10/63 (2015.04); H01M 10/657 (2015.04); B60L 2210/14 (2013.01); B60L 2240/545 (2013.01); B60L 2240/549 (2013.01); H01M 2220/20 (2013.01); H02P 27/06 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A boost converter control device for driving a traction motor of an electrified vehicle, the boost converter control device comprising:
a plurality of boost converters that is connected in parallel to each other to a secondary battery for supplying electric power to the traction motor and boosts a voltage of the secondary battery; and
a control unit for controlling each of the boost converters, wherein:
each of the boost converters is composed of a reactor and a switching element; and
when warm-up of the secondary battery is required, the control unit
performs first control for adjusting phases of at least two of the boost converters to be in the same phase, in response to a current value flowing through the secondary battery becoming larger than a predetermined threshold value, and
performs second control for stopping an operation of a part of the boost converters, in response to the current value flowing through the secondary battery becoming equal to or less than the predetermined threshold value.