US 12,413,169 B2
Power conversion apparatus
Ryoya Kazaoka, Kariya (JP)
Assigned to DENSO CORPORATION, Kariya (JP)
Filed by DENSO CORPORATION, Kariya (JP)
Filed on Oct. 6, 2023, as Appl. No. 18/377,545.
Application 18/377,545 is a continuation of application No. PCT/JP2022/011099, filed on Mar. 11, 2022.
Claims priority of application No. 2021-066577 (JP), filed on Apr. 9, 2021.
Prior Publication US 2024/0048083 A1, Feb. 8, 2024
Int. Cl. H02P 27/08 (2006.01); H02J 7/00 (2006.01)
CPC H02P 27/08 (2013.01) [H02J 7/0013 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A power conversion apparatus provided with a power converter having series connections of upper arm switches and lower arm switches and configured to convert DC power supplied from a battery into AC power by switching control, the power conversion apparatus being configured to supply the AC power from the power converter to a rotary electric machine having windings, the rotary electric machine being coupled to an axle of a vehicle, the power conversion apparatus comprising:
a control unit that performs temperature-increase control of the battery by performing switching control of the upper arm switches and the lower arm switches so that a current flows to the battery via the power converter and the windings, wherein
in the temperature-increase control while the vehicle is stopped, the control unit controls the current so that a current value of the rotary electric machine gradually increases within a current control range in which a torque of the rotary electric machine is less than an upper limit torque.