公开(公告)号：US20160183389A1

公开(公告)日：2016-06-23

申请号：US14969349

申请日：2015-12-15

Applicant: DENSO CORPORATION

Inventor： Hirokazu TOYODA ,  Manabu NOMURA ,  Yosuke KONDO

IPC: H05K5/00 ,  H05K5/02 ,  H02K5/02 ,  H02H7/08

CPC classification number: H02K5/02 ,  F02M59/00 ,  H02P6/00

Abstract: A motor control apparatus includes a motor, a motor controller, and a connection line. The motor is mounted to a vehicle and has a metal housing. The motor controller is separately provided with the motor, includes a housing and a circuit portion, is connected to the motor through a load line, and drives the motor by a drive current transmitted through the load line. A ground line of the circuit portion is connected to a body of the vehicle as a body earth. The connection line directly connects the metal housing of the motor and the circuit portion of the motor controller without through the housing of the motor controller.

Abstract translation: 电动机控制装置包括电动机，电动机控制器和连接线。 电机安装在车辆上并具有金属外壳。 电动机控制器分别设置有电动机，包括壳体和电路部分，通过负载线连接到电动机，并通过传输通过负载线的驱动电流来驱动电动机。 电路部分的接地线作为车身接地连接到车身上。 连接线通过马达控制器的外壳直接连接马达的金属外壳和马达控制器的电路部分。

公开(公告)号：US20210242816A1

公开(公告)日：2021-08-05

申请号：US17165402

申请日：2021-02-02

Applicant: DENSO CORPORATION

Inventor： Yuuichi SEO ,  Hironori IWAMIYA ,  Hirokazu TOYODA

IPC: H02P25/22 ,  H02K11/33 ,  H02P6/16

Abstract: A motor controller for controlling a drive of a motor having plural phase windings includes upper and lower arm circuits and a control unit. The control unit switchingly controls ON/OFF of switches of the upper and lower arm circuits, for sequentially switching an energized phase of the motor. Then, from among the plural switches, a switch forming an energization path to the energized phase is designated as an energized phase switch with the others of the plural switches being designated as non-energized phase switches. Further, from among the non-energized phase switches, a switch forming a path of a reflux current that accompanies the switching of the energized phase is designated as a reflux switch. Then, the control unit performs an ON control of the energized phase switch in addition to performing an ON control of the reflux switch.

公开(公告)号：US20160268937A1

公开(公告)日：2016-09-15

申请号：US15032061

申请日：2014-11-10

Applicant: DENSO CORPORATION

Inventor： Yuuji HIDAKA ,  Kiyoshi NAGATA ,  Masaya OOTAKE ,  Hirokazu TOYODA ,  Manabu NOMURA

IPC: H02P6/20 ,  F04D25/06 ,  F02M59/44 ,  H02K7/00

CPC classification number: H02P6/20 ,  F02M59/44 ,  F04D5/002 ,  F04D13/06 ,  F04D15/0066 ,  F04D25/06 ,  F04D29/20 ,  H02K7/003 ,  H02P6/182 ,  H02P6/188 ,  H02P6/22 ,  H02P2203/03

Abstract: A microcomputer of a drive control device for controlling the driving of a brushless motor has a positioning part and a torque acceleration control unit. The positioning unit controls the power to be supplied to the windings, to thereby position the rotor at a drive start position which is a position of the rotor relative to the stator at which the drive control of the brushless motor can start, before starting the drive control of the brushless motor. The torque acceleration control unit controls the power to be supplied to the windings so that a torque acceleration falls within a predetermined range that the collision stress generated when the outer wall of the end of the shaft collides with the inner wall of the hole of an impeller (rotating member) is equal to or smaller than a predetermined value, when the rotor is positioned.

Abstract translation: 用于控制无刷电动机的驱动的驱动控制装置的微型计算机具有定位部和转矩加速控制部。 定位单元控制供给到绕组的功率，从而将转子定位在驱动开始位置，该驱动开始位置是在开始驱动之前转子相对于定子的驱动控制可以启动的位置 控制无刷电机。 转矩加速控制部控制向绕组供给的功率，使得转矩加速度落在在轴的端部的外壁与叶轮的孔的内壁碰撞时产生的碰撞应力的预定范围内 （旋转构件）等于或小于预定值时。

公开(公告)号：US20160118918A1

公开(公告)日：2016-04-28

申请号：US14918770

申请日：2015-10-21

Applicant: DENSO CORPORATION

Inventor： Yuuji HIDAKA ,  Kiyoshi NAGATA ,  Masaya OOTAKE ,  Hirokazu TOYODA ,  Manabu NOMURA

IPC: H02P6/20 ,  H02P1/04

CPC classification number: H02P6/20 ,  H02P1/04 ,  H02P6/18

Abstract: A drive controller that controls a drive of a motor. The drive controller performs a collision force moderation control during a motor start time, during which a collision force in a collision between a shaft outwall with an impeller hole inwall for a positioning is moderated, by changing a power supply at a stage transition time of transiting from a position detection to a position determination. The maximum value of a first output value during a position detection time is set to be greater than a first threshold that at least causes a rotation number of the motor to yield a detectable induction voltage. A second output value during a position determination time is set to be lower than a second threshold that causes a wear or a breakage of an impeller by the collision force.

Abstract translation: 控制电机驱动的驱动控制器。 驱动控制器在电动机起动时间期间执行碰撞力调节控制，在此期间，通过在过渡阶段过渡时间改变电力供应，在轴外壁与用于定位的叶轮孔壁之间的碰撞中的碰撞力被缓和 从位置检测到位置确定。 将位置检测时间期间的第一输出值的最大值设定为大于至少使马达的转数产生可检测的感应电压的第一阈值。 在位置确定时间期间的第二输出值被设置为低于通过碰撞力造成叶轮磨损或破裂的第二阈值。

公开(公告)号：US20210207552A1

公开(公告)日：2021-07-08

申请号：US17205365

申请日：2021-03-18

Applicant: DENSO CORPORATION

Inventor： Tomoaki NAKANO ,  Yuuji HIDAKA ,  Hirokazu TOYODA

IPC: F02D41/22 ,  F02D41/30

Abstract: A pump control unit controls a fuel pump based on a control target value of an engine. A pump characteristic detection unit acquires a pump characteristic value among pump characteristic values, which indicate an operating state of a fuel pump and include a supplied current to the fuel pump, an applied voltage to the fuel pump, a generated voltage of the fuel pump, and a rotation speed of the fuel pump. A pump characteristic storage unit stores the acquired pump characteristic value together with the control target value. A determination threshold set unit sets a determination threshold value by using at least one of the stored pump characteristic value, the control target value, and a combination of at least two of the control target values. A fuel pump deterioration determination unit determines deterioration of the fuel pump by using the stored pump characteristic value and the determination threshold value.

公开(公告)号：US20140077734A1

公开(公告)日：2014-03-20

申请号：US13950539

申请日：2013-07-25

Applicant: DENSO CORPORATION

Inventor： Hirokazu TOYODA

IPC: H02P6/20

CPC classification number: H02P6/205 ,  H02P6/182 ,  H02P6/21 ,  H02P6/22

Abstract: A motor controller is configured to perform positioning of a rotor of a brushless motor immediately when power supply is turned on, and not after actually receiving a target value related to control for the brushless motor from a main ECU, which determines the target value. The motor controller finishes or is performing the rotor positioning, when the target value is received from the main ECU. For this reason, the motor controller can start rotation control for the brushless motor in accordance with the received target value in a short period of time.

Abstract translation: 电动机控制器被配置为在电源接通时立即执行无刷电动机的转子的定位，而不是在确定目标值之后实际从主ECU接收到与无刷电动机的控制有关的目标值之后。 当从主ECU接收目标值时，电机控制器完成或正在执行转子定位。 因此，电动机控制器可以在短时间内根据接收到的目标值开始无刷电动机的转动控制。