公开(公告)号：US20210348683A1

公开(公告)日：2021-11-11

申请号：US17443407

申请日：2021-07-26

Applicant: DENSO CORPORATION

Inventor： Koji SAKAGUCHI ,  Jun YAMADA ,  Haruka MIYANO

IPC: F16H61/32 ,  F16H61/02 ,  H02P6/16 ,  H02P3/18 ,  H02K1/27

Abstract: A shift range control device switches a shift range by controlling drive of a motor. An angle calculation unit calculates a motor angle based on a signal from a rotation angle sensor that detects a rotation position of the motor. A drive control unit drives the motor so that the motor angle becomes a target angle according to the target shift range, and stops a rotor by a fixed phase energization, when the motor angle reaches a target angle. When the rotor vibrates with respect to stop position, the drive control unit maintains a state in which a brake torque, which is the torque generated when moving away from center of vibration, is larger than an acceleration torque, which is the torque generated when moving toward the center of vibration, and reduces the current that energizes the motor based on a difference between the brake torque and the acceleration torque.

公开(公告)号：US20210262566A1

公开(公告)日：2021-08-26

申请号：US17318508

申请日：2021-05-12

Applicant: DENSO CORPORATION

Inventor： Yusaku KAWAGUCHI ,  Jun YAMADA ,  Seiji NAKAYAMA

IPC: F16H61/12 ,  F16H61/32 ,  F16H63/38 ,  F16H63/30

Abstract: A shift range control device includes an encoder count unit, an energization control unit, a learning unit, an energization phase count unit, and an abnormality determination unit. The encoder count unit calculates an encoder count value based on an encoder signal. The energization control unit controls energization to the motor. The learning unit learns a wall position that is the encoder count value when an engaging member abuts on the wall portion. The energization phase count unit calculates an energization phase count value that is counted according to switching of the energization phase. The abnormality determination unit determines an abnormality of the encoder based on the energization phase count value and the encoder count value before and after learning the wall position.

公开(公告)号：US20140336864A1

公开(公告)日：2014-11-13

申请号：US14265452

申请日：2014-04-30

Applicant: DENSO CORPORATION

Inventor： Kazuhiro YOSHIDA ,  Jun YAMADA ,  Takuya TAMARU

IPC: B60W50/02

CPC classification number: B60W50/0205 ,  B60W50/04 ,  B60W2050/021 ,  B60W2050/022 ,  F16H61/12 ,  F16H2061/1208 ,  F16H2061/1268 ,  F16H2061/326 ,  G06N99/005

Abstract: An actuator control apparatus including a by-wire control circuit, a monitor circuit, a drive determination section, and a prohibition section is provided. The by-wire control circuit electrically controls an actuator acting as a drive source of an on-board apparatus. The monitor circuit monitors whether or not the by-wire control circuit is normally operating. The monitor circuit is provided separately from the by-wire control circuit. The drive determination section determines prohibition and permission of driving the actuator. The prohibition section prohibits the actuator from being driven when the permission of driving the actuator is not determined by the drive determination section. The prohibition section also prohibits the actuator from being driven when the monitor circuit determines that the by-wire control circuit is not normally operating.

Abstract translation: 提供了一种致动器控制装置，其包括：线控制电路，监视电路，驱动判定部和禁止部。 线控制电路电控制作为车载装置的驱动源的致动器。 监视电路监视旁线控制电路是否正常工作。 监视器电路与旁路控制电路分开设置。 驱动判定部判定驱动执行器的禁止和许可。 当驾驶执行器的许可不被驱动判定部确定时，禁止部分禁止致动器被驱动。 当监视器电路确定旁路控制电路不正常工作时，禁止部分还禁止致动器被驱动。

公开(公告)号：US20210222773A1

公开(公告)日：2021-07-22

申请号：US17225609

申请日：2021-04-08

Applicant: DENSO CORPORATION ,  HONDA MOTOR CO., LTD.

Inventor： Hiromitsu NAGATA ,  Koji SAKAGUCHI ,  Jun YAMADA ,  Masahiko AKIYAMA ,  Masashi MISAWA ,  Kenshi MASUO

IPC: F16H61/12 ,  F16H61/32 ,  F16H61/02

Abstract: A shift range control device includes a signal receiver, an abnormality monitor, and a drive controller. The signal receiver acquires an encoder signal from an encoder capable of outputting three or more phase encoder signals having different phases. The abnormality monitor monitors an abnormality of the encoder. The drive controller controls drive of a motor by switching an energized phase of a motor winding so that a rotation position of the motor becomes a target rotation position according to a target shift range. When the abnormality of the encoder is detected, the driver controller drives the motor by faulty phase identification control to identify a faulty phase that is a phase in which an abnormality of the encoder signal occurs, and a normal phase in which the encoder signal is normal.

公开(公告)号：US20200325986A1

公开(公告)日：2020-10-15

申请号：US16841790

申请日：2020-04-07

Applicant: DENSO CORPORATION

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

IPC: F16H61/12 ,  F16H61/32

Abstract: A shift range control device includes an angle detector, a valley position learner, and a validity determiner. The angle detector detects a rotation angle of an output shaft of a shift actuator. The valley position learner learns the rotation angle of the output shaft when a locker is positioned at a valley bottom of a recess as a valley position based on a detection angle of the angle detector. The validity determiner determines validity of a learning value of the valley position learner.

公开(公告)号：US20180283545A1

公开(公告)日：2018-10-04

申请号：US15919438

申请日：2018-03-13

Applicant: DENSO CORPORATION

Inventor： Jun YAMADA

IPC: F16H61/32 ,  H02P25/092 ,  F16H61/24 ,  F16H61/12 ,  F16H63/38

CPC classification number: F16H61/32 ,  F16H61/12 ,  F16H61/24 ,  F16H63/38 ,  F16H2061/0053 ,  F16H2061/0087 ,  F16H2061/247 ,  F16H2061/326 ,  H02K11/215 ,  H02P6/17 ,  H02P25/092

Abstract: A shift range controller includes a target speed setter that sets a target motor speed for a motor based on an angle deviation between a current rotation position of the motor and a target rotation position based on a requested shift range. A requested duty calculator calculates a requested duty as a drive control amount for driving the motor based on the target motor speed. The target speed setter receives a feedback of the requested duty, and changes the target motor speed at a deceleration time based on the feedback of the requested duty. By changing the target motor speed based on the requested duty, the target motor speed is optimized for responding to impediment-causing factors such as temperature and friction. In such manner, the shift range switching responsiveness is improved.

公开(公告)号：US20170335960A1

公开(公告)日：2017-11-23

申请号：US15525638

申请日：2016-02-16

Applicant: DENSO CORPORATION

Inventor： Hiromitsu NAGATA ,  Jun YAMADA

IPC: F16H61/28 ,  F16H59/08 ,  F16H61/32

CPC classification number: F16H61/2807 ,  F16H59/08 ,  F16H61/28 ,  F16H61/32 ,  F16H61/36 ,  F16H2061/326

Abstract: During changing of a shift range (for example, from P-range to NotP-range), an SBW-ECU determines whether it is in a range-change delay condition (a switching completion time of the shift range is delayed than a normal switching completion time). When it is determined that it is in the range-change delay condition, it is determined whether a target range should be changed to a safer range (for example, P-range). As a result, when it is determined that the target range should be changed to the safer range, the target range is changed to the safer range. Thereby, even if a driver determines that the shift range cannot be changed before the switching completion of the shift range and the driver gets off the vehicle, the shift range can be changed to the safer range (P-range).

公开(公告)号：US20170307073A1

公开(公告)日：2017-10-26

申请号：US15492307

申请日：2017-04-20

Applicant: DENSO CORPORATION

Inventor： Jun YAMADA

IPC: F16H61/32 ,  F16H61/12 ,  H02P25/08 ,  H02K11/215 ,  F16H61/24

CPC classification number: F16H61/32 ,  F16H61/12 ,  F16H61/24 ,  F16H63/38 ,  F16H2061/0053 ,  F16H2061/1288 ,  F16H2061/247 ,  F16H2061/326 ,  H02K11/215 ,  H02P25/0805

Abstract: A control circuit controls driving of a motor to switch over a shift range. A target rotation speed setting part sets a target rotation speed of the motor. A rotation speed detection part detects a present rotation speed, which is an actual rotation speed, of the motor. A rotation speed error calculation part calculates a rotation speed error, which is an error between the target rotation speed and the present rotation speed. A request torque calculation part calculates a request torque for the motor based on the rotation speed error. A phase lead correction value calculation part calculates a phase lead correction value of a current supply phase relative to a rotation phase of a rotor of the motor based on the request torque.

公开(公告)号：US20170307072A1

公开(公告)日：2017-10-26

申请号：US15492288

申请日：2017-04-20

Applicant: DENSO CORPORATION

Inventor： Jun YAMADA

IPC: F16H61/32 ,  H02P6/16 ,  H02K19/10 ,  H02P27/08 ,  F16H61/24

CPC classification number: F16H61/32 ,  F16H61/24 ,  F16H2061/247 ,  F16H2061/326 ,  H02K1/14 ,  H02K1/2753 ,  H02K7/116 ,  H02K19/10 ,  H02P6/16 ,  H02P6/24 ,  H02P6/30 ,  H02P27/08

Abstract: A control circuit switches over a shift range by controlling driving of a motor to rotationally drive a detent plate. A current detection circuit detects a current value corresponding to a driving current supplied to drive the motor. A current increase check part performs check processing to check whether the current value detected by the current detection circuit has increased. A motor rotation stop part stops rotation of the motor when the current increase check part determines that the current has increased. A reverse driving part reverses the rotation direction of the motor and rotationally drives the motor after stopping of the motor by the motor rotation stop part.

公开(公告)号：US20150160640A1

公开(公告)日：2015-06-11

申请号：US14559250

申请日：2014-12-03

Applicant: DENSO CORPORATION

Inventor： Jun YAMADA

IPC: G05B19/048

CPC classification number: H02P29/027 ,  F16H2061/247

Abstract: A current limiting circuit restricts electric currents flowing through windings and MOSs such that an average of a current value of the electric currents detected by a current detection circuit is within a predetermined value span. An MPU functions as a reference position learning controller that performs a reference position learning control to restrict the electric currents that flow through the windings and the MOSs using the current limiting circuit while rotating a motor until a detent plate stops at a limit position of a working span, to thereby learn the reference position of the motor. An anomaly detection section of the MPU functions as an anomaly detection controller to detect an anomaly in the current limiting circuit based on the current value detected by the current detection circuit during the reference position learning control.

Abstract translation: 电流限制电路限制流过绕组和MOS的电流，使得由电流检测电路检测的电流的电流值的平均值在预定值范围内。 MPU用作参考位置学习控制器，其执行参考位置学习控制，以在旋转电机的同时限制流过绕组的电流和使用限流电路的MOS，直到制动板停止在工作的极限位置 跨度，从而了解电机的参考位置。 MPU的异常检测部分作为异常检测控制器，用于在参考位置学习控制期间基于由电流检测电路检测的电流值来检测限流电路中的异常。