公开(公告)号：US20170163187A1

公开(公告)日：2017-06-08

申请号：US15371736

申请日：2016-12-07

Applicant: DENSO CORPORATION

Inventor： Jun YAMADA

IPC: H02P6/24 ,  H02P6/15

CPC classification number: H02P6/24 ,  H02P6/153

Abstract: A control circuit of a motor control apparatus includes a shift range switchover control part for rotationally driving a rotor of the motor to a target position, which corresponds to a target shift range, a wall-hitting control part for rotating the rotor until the driven body hits one of limit positions of a movable range of the driven body at a speed lower than that of the rotor controlled by the shift range switchover control part, and a speed check part for checking whether a rotation speed of the rotor is within a predetermined speed range, when the rotor is rotated by the wall-hitting control part. The wall-hitting control part limits a power supply angular interval to be smaller when the rotation speed of the rotor is within the predetermined speed range than when the rotation speed of the rotor is lower than the predetermined speed range.

公开(公告)号：US20160003349A1

公开(公告)日：2016-01-07

申请号：US14789157

申请日：2015-07-01

Applicant: DENSO CORPORATION

Inventor： Kiyoshi KIMURA ,  Jun YAMADA

IPC: F16H61/02 ,  B60K23/02 ,  F16H59/08

CPC classification number: B60K23/02 ,  B60K2702/02 ,  B60Y2300/70 ,  F16H59/105 ,  F16H61/32 ,  F16H2061/0087 ,  F16H2061/326

Abstract: A shift position switching device for shifting gears in association with a shift position. The device includes a shift mechanism switching between shift positions using a drive power of a motor, an encoder outputting pulse signals in sync with a rotation of the motor, and a controller rotating the motor to a target rotation position corresponding to an intended gear. The controller rotates the motor toward a dead-end on a first shift position side of the shift mechanism while observing a motor rotation speed or an acceleration of rotation of the motor based on the outputted pulse signals of the encoder. Also, the controller learns, as a reference position on the first shift position side, a first rotation position of the motor.

Abstract translation: 一种换档位置切换装置，用于与换档位置相关联地移动齿轮。 该装置包括使用电动机的驱动力的换档位置之间切换的换档机构，与电动机的旋转同步地输出脉冲信号的编码器，以及将电动机旋转到对应于预期档位的目标旋转位置的控制器。 控制器基于输出的编码器的脉冲信号，在电动机旋转速度或电动机的旋转加速度的同时，将电动机转动到变速机构的第一变速位置侧的死区。 此外，控制器作为第一变速位置侧的基准位置学习电动机的第一旋转位置。

公开(公告)号：US20130144478A1

公开(公告)日：2013-06-06

申请号：US13705665

申请日：2012-12-05

Applicant: DENSO CORPORATION

Inventor： Fuminori SUZUKI ,  Jun YAMADA ,  Seiji NAKAYAMA

IPC: B60L15/20

CPC classification number: B60L15/20 ,  B60L15/2054 ,  B60L2240/425 ,  B60L2240/486 ,  Y02T10/642 ,  Y02T10/645 ,  Y02T10/72 ,  Y02T10/7275

Abstract: A shift range switcher includes a motor for switching a shift range and a controller for energizing the motor. The controller estimates temperatures of the motor and controller. The controller adds to the estimated controller temperature a value corresponding to heat generation in the controller due to energization of the motor. The controller subtracts from the estimated controller temperature a value corresponding to heat release from the controller due to de-energization of the motor. The controller adds to the estimated motor temperature a value corresponding to heat generation in the motor due to the energization. The controller subtracts from the estimated motor temperature a value corresponding to heat release from the motor due to the de-energization. The controller prohibits or restricts operations of the controller and the motor when at least one of the controller and motor estimated temperatures reaches an allowable temperature limit.

Abstract translation: 变速范围切换装置包括用于切换换挡范围的马达和用于使马达通电的控制器。 控制器估计电机和控制器的温度。 控制器通过电动机的通电将估计的控制器温度与控制器中的发热相对应。 控制器从估计的控制器温度中减去由于电动机的断电而与控制器的放热相对应的值。 控制器将估计的电动机温度与由于通电引起的电动机的发热相对应。 控制器从估计的电机温度中减去由于断电而对应于从电动机释放的热值。 当控制器和电动机估计温度中的至少一个达到允许的温度极限时，控制器禁止或限制控制器和电动机的操作。

公开(公告)号：US20130141031A1

公开(公告)日：2013-06-06

申请号：US13693314

申请日：2012-12-04

Applicant: DENSO CORPORATION

Inventor： Jun YAMADA

IPC: G05B19/23

CPC classification number: G05B19/23 ,  G05B19/4062 ,  G05B2219/42095 ,  G05B2219/42294

Abstract: When a failure of a feedback control operation of an electric motor is sensed, a control unit changes the feedback control operation to an open loop control operation. At the time of executing the open loop control operation, the control unit sequentially changes the exciting phase of the motor without executing feedback of information of the count value of the encoder counter and rotates a rotor of the motor until a count value of an exciting phase change counter reaches an open loop target count value, which corresponds to a target rotational position of the rotor. When the control unit changes the feedback control operation to the open loop control operation, the control unit sets the open loop target count value by correcting a feedback target count value based on an exciting phase deviation correction value for the count value of the encoder counter.

Abstract translation: 当检测到电动机的反馈控制操作失败时，控制单元将反馈控制操作改变为开环控制操作。 在执行开环控制操作时，控制单元顺序地改变电动机的励磁相位，而不执行编码器计数器的计数值的信息的反馈，并且使电动机的转子旋转直到激励相位的计数值 变更计数器达到对应于转子的目标旋转位置的开环目标计数值。 当控制单元将反馈控制操作改变为开环控制操作时，控制单元通过基于编码器计数器的计数值的激励相位偏差校正值来校正反馈目标计数值来设置开环目标计数值。

公开(公告)号：US20220271701A1

公开(公告)日：2022-08-25

申请号：US17650532

申请日：2022-02-10

Applicant: DENSO CORPORATION

Inventor： Jun YAMADA

IPC: H02P29/032 ,  F16H61/32

Abstract: A motor control device includes an energization control unit and an excessive return determination unit. The energization control unit controls energization to a motor. The excessive return determination unit determines whether or not there is a possibility of an excessive return exceeding an allowable return position, when a non-energization return control is performed to return a motor in a direction away from a movable limit position by an external force generated in the rotation transmission system by turning off the energization to the motor after driving the motor to the movable limit position where the drive is restricted by the drive limiting portion. When it is determined that there is no possibility of the excessive return, the energization is continuously turned off, and when it is determined that there is a possibility of the excessive return, a stop control configured to stop the motor by energizing is performed.

公开(公告)号：US20170307074A1

公开(公告)日：2017-10-26

申请号：US15492324

申请日：2017-04-20

Applicant: DENSO CORPORATION

Inventor： Jun YAMADA

IPC: F16H61/32 ,  H02P29/024 ,  H02P6/16 ,  F16H61/12

CPC classification number: F16H61/32 ,  F16H61/12 ,  F16H2061/0053 ,  F16H2061/1208 ,  F16H2061/1268 ,  F16H2061/2823 ,  F16H2061/283 ,  F16H2061/326 ,  H02P6/16 ,  H02P23/0031 ,  H02P27/085 ,  H02P29/027

Abstract: A PWM control part rotationally drives a motor based on a PWM control value. A rotation speed control part controls a rotation speed of the motor. A rotation angle detection part detects a rotation angle of the motor. A reference position learning part controls the motor to rotate at a constant rotation speed until a detent plate stops at a limit position of a movable range and learns a reference position of the motor. A current detection circuit detects a current value corresponding to a driving current. A current limitation part limits a current supplied to the motor. A PWM control value limitation part controls the PMW control value to be equal to or smaller than a PWM limitation value, which is a predetermined value. A relation check part checks whether a relation between a current value detected by the current detection circuit and the PWM control value is inappropriate.

公开(公告)号：US20140028231A1

公开(公告)日：2014-01-30

申请号：US13947567

申请日：2013-07-22

Applicant: DENSO CORPORATION

Inventor： Kazuhiro YOSHIDA ,  Jun YAMADA ,  Masaaki SHINOJIMA

IPC: H02P31/00

CPC classification number: H02P31/00 ,  F16H61/32 ,  F16H2061/0053 ,  F16H2061/247 ,  F16H2061/326 ,  G06N99/005

Abstract: When electric power supply is started, an initial driving operation is performed to switch over a power supply phase of a motor in open-loop control. Initial learning processing is performed to learn a phase deviation correction value for the power supply phase relative to a count value of a pulse signal of an encoder. As a restraint caused by a shape of a detent mechanism, the motor need be rotationally driven so that a detent lever does not move in a negative direction beyond a bottom position of a P-range in the initial driving operation. In a case of performing the initial learning processing in the P-range in consideration of this restraint, the initial learning processing is performed by setting a rotation direction of the motor.

Abstract translation: 当电源开始时，执行初始驱动操作以在开环控制中切换电动机的电源相位。 执行初始学习处理，以相对于编码器的脉冲信号的计数值学习电源相位的相位偏差校正值。 作为由止动机构的形状引起的约束，马达需要被旋转地驱动，使得止动杆在初始驾驶操作中不会以负方向移动超过P档的底部位置。 在考虑到该约束的情况下进行P范围的初始学习处理的情况下，通过设定电动机的旋转方向来进行初始学习处理。

公开(公告)号：US20130154537A1

公开(公告)日：2013-06-20

申请号：US13714822

申请日：2012-12-14

Applicant: DENSO CORPORATION

Inventor： Kiyoshi KIMURA ,  Jun YAMADA ,  Masaaki SHINOJIMA

IPC: G05B13/02

CPC classification number: G05B13/02 ,  G05B13/0265

Abstract: A motor control apparatus that controls rotation of a rotor of an electric motor powered from an electric power source includes a learning portion that executes an initial drive learning process, and a controller that executes a normal drive operation to sequentially change an exciting phase of the electric motor based on a count value of a counter which is corrected by a correcting portion such that the rotor is rotated to a target position after an initial drive operation is finished. The learning portion re-executes the initial drive learning process after a predetermined condition is satisfied, when the initial drive learning process is failed.

Abstract translation: 控制由电源供电的电动机的转子的旋转的电动机控制装置包括执行初始驱动学习处理的学习部，以及执行正常驱动操作以顺序地改变电动机的励磁相位的控制器 电动机基于由校正部分校正的计数器的计数值，使得在初始驱动操作结束之后转子旋转到目标位置。 当初始驱动学习处理失败时，学习部分在满足预定条件之后重新执行初始驱动学习处理。

公开(公告)号：US20220299108A1

公开(公告)日：2022-09-22

申请号：US17836353

申请日：2022-06-09

Applicant: DENSO CORPORATION

Inventor： Yusaku KAWAGUCHI ,  Seiji NAKAYAMA ,  Jun YAMADA

IPC: F16H61/12 ,  F16H61/32

Abstract: An ECU has a temperature detection unit that detects an actual temperature of the ECU, a temperature estimation unit that calculates an estimated temperature of the ECU, an abnormality determination unit for determining a presence or absence of a sign of abnormality, and a switching prohibition unit that prohibits the shift range switching in a predetermined case. The switching prohibition unit prohibits the shift range switching when there is no sign of abnormality in the temperature detection unit and the actual temperature is equal to or higher than a switching prohibition threshold, and prohibits the shift range switching when there is a sign of abnormality in the temperature detection unit and the estimated temperature is equal to or higher than a switching prohibition threshold. The temperature estimation unit calculates the estimated temperature based on a latest actual temperature in a normal period.

公开(公告)号：US20220221050A1

公开(公告)日：2022-07-14

申请号：US17708450

申请日：2022-03-30

Applicant: DENSO CORPORATION

Inventor： Haruka MIYANO ,  Kouji SAKAGUCHI ,  Jun YAMADA ,  Seiji NAKAYAMA

IPC: F16H61/28 ,  F16H61/32

Abstract: A shift range control device switches a shift range by controlling driving of a motor. The shift range control device calculate an actual rotation position of the motor. The shift range control device sets a target range according to a required range and a target rotation position according to the target range. The shift range control device controls the driving of the motor such that the actual rotation position reaches the target rotation position.