公开(公告)号：US10027252B2

公开(公告)日：2018-07-17

申请号：US15651047

申请日：2017-07-17

Applicant: DENSO CORPORATION

Inventor： Makoto Taniguchi ,  Asaka Kimura ,  Keiji Kondo

IPC: H02P27/06 ,  H02M7/5387

Abstract: A rotating electric machine system includes a rotating electric machine and an electric power conversion circuit. The rotating electric machine includes N coils connected with each other to define a neutral point therebetween. The electric power conversion circuit includes N high-side switches, N low-side switches, a selector switch, a full-wave driver, a half-wave driver and a drive controller. The full-wave driver performs a full-wave drive process with high potential-side terminals of the low-side switches respectively connected with low potential-side terminals of the high-side switches by the selector switch. The half-wave driver performs a half-wave drive process with the high potential-side terminals of the low-side switches connected with the neutral point by the selector switch. The drive controller controls both the full-wave driver and the half-wave driver to selectively cause either the full-wave driver to perform the full-wave drive process or the half-wave driver to perform the half-wave drive process.

公开(公告)号：US11223311B2

公开(公告)日：2022-01-11

申请号：US16598753

申请日：2019-10-10

Applicant: DENSO CORPORATION

Inventor： Hirofumi Kinjo ,  Toru Wakimoto ,  Makoto Taniguchi ,  Keiji Kondo ,  Jun Ishida ,  Tomoya Takahashi

IPC: H02P6/12 ,  H02P23/08 ,  H02P25/20 ,  H02K3/28 ,  H02K17/14 ,  H02P25/22

Abstract: In a rotary electric machine, a rotor, and a stator. The stator includes slots provided in a circumferential direction thereof, and stator windings wound in the slots. The stator windings include n groups of three-phase windings, where n is a power of 2. The slots include first slots each accommodating portions of same-group and same-phase windings in the n groups of three-phase windings. The energizing directions of the same-group and same-phase windings are identical to each other. The second slots each accommodate different-group and same-phase windings in the n groups of three-phase windings. The first slots and the second slots are arranged in the stator at predetermined intervals in a circumferential direction of the stator, and the three-phase windings of each group are wound around the stator with regular intervals therebetween.

公开(公告)号：US10960769B2

公开(公告)日：2021-03-30

申请号：US15657871

申请日：2017-07-24

Applicant: DENSO CORPORATION

Inventor： Keiji Kondo ,  Makoto Taniguchi ,  Asaka Kimura

IPC: B60W20/13 ,  B60L53/00 ,  B60L11/18 ,  H02J7/14 ,  B60L53/24 ,  B60L50/10 ,  H02J7/00 ,  B60W30/18 ,  H02P101/45 ,  H02P9/00

Abstract: In an onboard charging apparatus, a plurality of main electric-power storage apparatuses are connected in series to one another. A main electric-power storage apparatus on a lowest potential side of the main electric-power storage apparatuses is a lowest potential electric-power storage apparatus. The lowest potential electric-power storage apparatus has a nominal voltage that is set to 12 V, and supplies electric power to an electrical component mounted to a vehicle. In the onboard charging apparatus, a connecting unit selectively connects, by switching control, the output terminal and any of high potential side terminals of the main electric-power storage apparatuses. A switching control unit controls switching of the connecting unit to switch the high potential side terminal selected as a connection destination of the output terminal among the high potential side terminals of the main electric-power storage apparatuses, based on an output voltage of the output terminal.