公开(公告)号：US20180022224A1

公开(公告)日：2018-01-25

申请号：US15657871

申请日：2017-07-24

Applicant: DENSO CORPORATION

Inventor： Keiji KONDO ,  Makoto TANIGUCHI ,  Asaka KIMURA

IPC: B60L11/18 ,  B60W20/13 ,  H02P9/00 ,  B60L11/02 ,  H02J7/14 ,  H02J7/00

CPC classification number: B60L11/1814 ,  B60L50/10 ,  B60L53/24 ,  B60W20/13 ,  B60W30/18127 ,  H02J7/0068 ,  H02J7/14 ,  H02J7/1423 ,  H02P9/008 ,  H02P2101/45 ,  Y02T10/7258 ,  Y10S903/93

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.

公开(公告)号：US20140042990A1

公开(公告)日：2014-02-13

申请号：US13933729

申请日：2013-07-02

Applicant: DENSO CORPORATION

Inventor： Toshinori MARUYAMA ,  Masaya NAKANISHI ,  Asaka KIMURA ,  Takatoshi INOKUCHI

IPC: H02P9/10

CPC classification number: H02P9/102 ,  H02P9/107 ,  H02P9/48

Abstract: An alternator has rectifying module groups. The rectifying module groups form a bridge circuit. The rectifying module groups have a load dump protection judgment section for monitoring an output voltage of rectifying module groups. When the monitored output voltage exceeds a first threshold voltage, the load dump protection judgment section provides to a control section an instruction to turn on MOS transistors in a lower arm of the bridge circuit at a time when a predetermined delay time has elapsed. When a second threshold voltage is lower than the first threshold voltage and the monitored output voltage becomes less than the second threshold voltage after the monitored output voltage exceeds the first threshold voltage, the load dump protection judgment section provides to the control circuit an instruction to turn on the MOS transistors in the lower arm after the MOS transistors are turned off during a predetermined time length.

Abstract translation: 交流发电机具有整流模块组。 整流模块组成桥接电路。 整流模块组具有负载突降保护判断部分，用于监控整流模块组的输出电压。 当监视的输出电压超过第一阈值电压时，负载突降保护判断部分在经过预定的延迟时间的时候向控制部分提供在桥接电路的下臂中接通MOS晶体管的指令。 当第二阈值电压低于第一阈值电压，并且在监视的输出电压超过第一阈值电压之后监视的输出电压变得小于第二阈值电压时，负载突降保护判断部分向控制电路提供转向指令 在MOS晶体管在预定时间长度内关闭之后，在下臂中的MOS晶体管上。

公开(公告)号：US20180019687A1

公开(公告)日：2018-01-18

申请号：US15651047

申请日：2017-07-17

Applicant: DENSO CORPORATION

Inventor： Makoto TANIGUCHI ,  Asaka KIMURA ,  Keiji KONDO

IPC: H02M7/5387 ,  H02P27/06

CPC classification number: H02M7/5387 ,  H02P23/0027 ,  H02P27/06

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：US20160118920A1

公开(公告)日：2016-04-28

申请号：US14922593

申请日：2015-10-26

Applicant: DENSO CORPORATION

Inventor： Asaka KIMURA ,  Takatoshi INOKUCHI ,  Masaya NAKANISHI ,  Toshinori MARUYAMA

IPC: H02P9/00

CPC classification number: H02P9/006 ,  H02P29/0241

Abstract: In a power generator, a determiner determines whether a phase voltage output from each of multiphase armature windings has exceeded a threshold voltage. A turn-on unit turns on at least one of the protective switches as a target protective switch to limit the output voltage of the rectifier circuit to be lower than the threshold voltage upon the phase voltage output from at least one of the multiphase armature windings corresponding to the at least one of the protective switches has exceeded the threshold voltage.

Abstract translation: 在发电机中，确定器确定从多相电枢绕组中输出的相电压是否超过阈值电压。 一个导通单元将至少一个保护开关作为目标保护开关，当从至少一个多相电枢绕组输出的相电压对应时，将整流电路的输出电压限制为低于阈值电压 至少一个保护开关已超过阈值电压。

公开(公告)号：US20190238073A1

公开(公告)日：2019-08-01

申请号：US16317974

申请日：2017-07-13

Applicant: DENSO CORPORATION

Inventor： Asaka KIMURA ,  Makoto TANIGUCHI ,  Keiji KONDO

IPC: H02P6/10 ,  H02P6/15

CPC classification number: H02P6/10 ,  H02K3/28 ,  H02P6/153 ,  H02P25/18 ,  H02P25/22 ,  H02P27/06 ,  H02P2207/055 ,  H02P2209/01

Abstract: A rotating electric machine apparatus includes a rotating electric machine and a full-bridge inverter. The full-bridge inverter includes first high-side switches, first low-side switches, second high-side switches, and second low-side switches. The rotating electric machine apparatus includes: first and second neutral point switches; a full-wave driving unit that performs a full-wave driving process in which switching control of the switches is performed in a state in which the first and second neutral point switches are turned off; a half-wave driving unit that performs a half-wave driving process in which switching control of the first high-side switches and the second low-side switches is performed in a state in which the first and second neutral point switches are turned on, and the first low-side switches and the second high-side switches are turned off; and an executing unit that selects and performs either of the full-wave driving process and the half-wave driving process.

公开(公告)号：US20140055894A1

公开(公告)日：2014-02-27

申请号：US13969907

申请日：2013-08-19

Applicant: DENSO CORPORATION

Inventor： Toshinori MARUYAMA ,  Takatoshi INOKUCHI ,  Asaka KIMURA ,  Masaya NAKANISHI

IPC: H02H9/04

CPC classification number: H02H9/04 ,  H02P9/107

Abstract: An electric rotating machine for a vehicle is equipped with a load dump protector. The load dump protector works to selectively perform a first and a second load dump protection operation to suppress a voltage surge arising from the load dump. When a rate at which an output voltage from the electric rotating machine is determined to be smaller than a given value, the load dump protector waits for stating the first load dump protection operation until the time when a voltage surge arising from changing of switching devices of a rectifier module of the electric rotating machine is expected to be suppressed and then performs the first load dump protection operation. When the rate is greater than the given value, the load dump protector immediately initiates the second load dump protection operation. This ensures the stability in eliminating the risk of a voltage surge arising from the load dump.

Abstract translation: 一种用于车辆的电动旋转机器配备有负载突降保护器。 负载突降保护器用于选择性地执行第一次和第二次负载突降保护操作，以抑制由负载突降引起的电压浪涌。 当将来自旋转电机的输出电压确定为小于给定值的速率时，负载突降保护器等待说明第一负载突降保护操作，直到由于开关装置的变化引起的电压浪涌 期望旋转电机的整流器模块被抑制，然后执行第一负载突降保护操作。 当速率大于给定值时，负载转储保护器立即启动第二次负载突降保护操作。 这确保了在消除由负载突降引起的电压浪涌风险的稳定性。