US 12,328,076 B2
Bidirectional DC-DC converter, traffic system, control method, and non-transitory computer-readable storage medium
Masaya Mitake, Tokyo (JP); Masanori Maruyama, Tokyo (JP); Keiji Nagasaka, Tokyo (JP); Yuji Maekawa, Tokyo (JP); and Yuichiro Yazaki, Tokyo (JP)
Assigned to MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo (JP)
Filed by MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo (JP)
Filed on Oct. 24, 2022, as Appl. No. 17/971,880.
Claims priority of application No. 2021-177699 (JP), filed on Oct. 29, 2021.
Prior Publication US 2023/0133167 A1, May 4, 2023
Int. Cl. H02M 3/335 (2006.01)
CPC H02M 3/33584 (2013.01) [B60L 2210/10 (2013.01); H02J 2310/48 (2020.01); H02M 3/33573 (2021.05)] 8 Claims
OG exemplary drawing
 
7. A control method to be executed by a bidirectional DC-DC converter,
the bidirectional DC-DC converter that includes
a first circuit that is configured to process a first voltage being a DC voltage and that includes a first electronic component including a first switching element,
a second circuit that is configured to process a second voltage or a third voltage, the second voltage being a DC voltage supplied to an electric vehicle, the third voltage being a DC voltage generated in an electric vehicle, and that includes a second electric component with a lower withstand voltage than the first electronic component, the second electric component including a second switching element,
at least one rotation sensor that is configured to detect a number of rotations of wheels per unit time, the wheels being provided with the electric vehicle, and
a control circuit,
the method comprising:
acquiring a detection result of the number of rotations of the wheels from the at least one rotation sensor;
determining an idling of the wheels from the detection result;
controlling switching of at least one of the first switching element and the second switching element;
in a case of controlling the switching of the first switching element, controlling the switching of the first switching element based on a result of the determination; and
converting the first voltage into the second voltage or converting the third voltage into the first voltage.