公开(公告)号：US20150020632A1

公开(公告)日：2015-01-22

申请号：US14332763

申请日：2014-07-16

Applicant: DENSO CORPORATION

Inventor： Hiromitsu NAGATA ,  Fuminori SUZUKI

IPC: F16H61/02

CPC classification number: F16H61/0265 ,  F16H61/0248 ,  F16H61/0437 ,  F16H61/08 ,  F16H2061/0481 ,  F16H2061/0485 ,  F16H2061/0488 ,  Y10T74/20024 ,  Y10T477/689 ,  Y10T477/6895 ,  Y10T477/6931 ,  Y10T477/69362 ,  Y10T477/693625 ,  Y10T477/6937

Abstract: A control device for controlling an automatic transmission determines whether a fluid pressure of the operation fluid acting on a friction engagement element that is switched from a released-state to an engaged-state is in a fully-decreased state. If determined that the fluid pressure is not in a fully-decreased state, control of a manual valve is delayed. In such manner, the hydraulic circuit is switched by the manual valve after the full decrease of the fluid pressure of the operation fluid acting on the just-engaged friction engagement element. As a result, an abrupt rise of the fluid pressure is prevented and a shock in the automatic transmission is reduced.

Abstract translation: 用于控制自动变速器的控制装置确定作用在从释放状态切换到接合状态的摩擦接合元件上的操作流体的流体压力是否处于完全减小状态。 如果确定流体压力不是完全降低的状态，则手动阀的控制被延迟。 以这种方式，在作用在刚接合的摩擦接合元件上的操作流体的流体压力完全降低之后，通过手动阀切换液压回路。 结果，防止了流体压力的突然上升，并且减少了自动变速器中的冲击。

公开(公告)号：US20220393624A1

公开(公告)日：2022-12-08

申请号：US17890382

申请日：2022-08-18

Applicant: DENSO CORPORATION

Inventor： Hiromitsu NAGATA

IPC: H02P7/03

Abstract: An abnormality monitoring apparatus includes a drive circuit unit, a current detection unit, a current cutoff unit, a first control unit, and a second control unit. The drive circuit unit switches an energization to the motor winding. The current detection unit detects a motor current, which is a current flowing through the motor winding. The current cutoff unit cuts off the motor current. The first control unit has an energization control unit for controlling energization to the motor winding and an energization state notification unit for outputting an energization state signal according to an energization command. The second control unit is provided separately from the first control unit and has an abnormality monitoring unit configured to monitor an abnormality based on a detection value of the current detection unit and an energization state signal so as to perform fail-safe measure according to a monitoring result.

公开(公告)号：US20170104435A1

公开(公告)日：2017-04-13

申请号：US15284978

申请日：2016-10-04

Applicant: DENSO CORPORATION

Inventor： Hiromitsu NAGATA ,  Seiji NAKAYAMA

IPC: H02P29/024 ,  G05B23/02 ,  H02P6/14 ,  F16H61/12 ,  F16H61/32

CPC classification number: H02P29/024 ,  F16H61/12 ,  F16H61/32 ,  F16H2061/1268 ,  F16H2061/1284 ,  F16H2061/326 ,  G05B23/0275 ,  H02P6/14 ,  H02P29/0241

Abstract: An integrated IC provided in an SBW-ECU has plural functions such as a receiving function of receiving output signals of an encoder and a current supply function of supplying current to each phase of the motor. A microcomputer checks individually whether the signal receiving function and the current supply function are potentially abnormal and checks whether the integrated IC is abnormal based on the check results about the signal receiving function and the current supply function. For example, when it is determined that only the signal receiving function of the integrated IC is potentially abnormal, the encoder is determined to be abnormal. When it is determined that the signal receiving function and the current supply function of the integrated IC are both potentially abnormal, the integrated IC is determined to be abnormal.

公开(公告)号：US20190103825A1

公开(公告)日：2019-04-04

申请号：US16087247

申请日：2017-02-13

Applicant: DENSO CORPORATION

Inventor： Hiromitsu NAGATA ,  Seiji NAKAYAMA ,  Jun YAMADA

IPC: H02P6/08 ,  G05B19/406 ,  H02P6/12

Abstract: A motor control device includes: a state monitoring unit that detects a power supply abnormality in which a power is not normally supplied to at least one of a rotation sensor and a motor; an abnormality determination unit that detects an abnormality of the rotation sensor based on an output signal of the rotation sensor; and a decision unit that decides whether to confirm the abnormality of the rotation sensor based on a detection result of the state monitoring unit and a detection result of the abnormality determination unit. When the state monitoring unit detects the power supply abnormality, the decision unit does not decide the abnormality of the rotation sensor even when the abnormality determination unit detects the abnormality of the rotation sensor.

公开(公告)号：US20150088320A1

公开(公告)日：2015-03-26

申请号：US14491067

申请日：2014-09-19

Applicant: DENSO CORPORATION

Inventor： Yuuta MIZUNO ,  Fumihiko NAKANE ,  Fuminori SUZUKI ,  Hiromitsu NAGATA

IPC: H02M3/156 ,  G05D7/06

CPC classification number: H02M3/156 ,  H02M2003/1555

Abstract: A load drive controlling device includes a dulling controller, a dulling adjuster, and a Proportional Integral (PI) controller. The dulling adjuster sets a first electric current value for a dulling adjustment operation according to a change trend of a target electric current value in an inductive load. The dulling adjuster performs the dulling adjustment operation on the first electric current and limits a dulled value based on a guard value. The PI controller performs a PI control based on a deviation between the dulled value and an actual value of the electric current. The dulling controller sets the first electric current value and the guard value according to a change trend of the target electric current value. In such a configuration, the load drive controlling device improves an electric current response while preventing an over-accumulation of an integration value.

Abstract translation: 负载驱动控制装置包括钝化控制器，钝化调节器和比例积分（PI）控制器。 钝化调整器根据感性负载中的目标电流值的变化趋势来设定用于钝化调整操作的第一电流值。 钝化调节器对第一电流执行钝化调整操作，并基于保护值限制钝化值。 PI控制器基于钝化值与电流的实际值之间的偏差执行PI控制。 钝化控制器根据目标电流值的变化趋势来设定第一电流值和保护值。 在这种结构中，负载驱动控制装置提高电流响应，同时防止积分值过度累积。

公开(公告)号：US20140375290A1

公开(公告)日：2014-12-25

申请号：US14296751

申请日：2014-06-05

Applicant: DENSO CORPORATION

Inventor： Yuuta MIZUNO ,  Fumihiko NAKANE ,  Fuminori SUZUKI ,  Hiromitsu NAGATA

IPC: H02M3/156

CPC classification number: H02M3/156 ,  H02M2003/1555 ,  H02P23/04 ,  H02P27/085

Abstract: A load drive control device is provided, which includes a pulse generator for generating pulse signals with a duty ratio to drive an inductive load, a feedback setting section for setting the duty ratio for feedback, a detection setting section for setting the duty ratio for detection of a natural vibration frequency of the inductive load, a natural vibration frequency setting section for setting the natural vibration frequency of the inductive load based on an actual current value detected at setting the duty ratio for detection, and a selection section for selecting the feedback setting section as a duty ratio setting section at a normal time and for selecting the detection setting section as the duty ratio setting section when a condition for detecting the natural vibration frequency is satisfied.

Abstract translation: 提供了一种负载驱动控制装置，其包括用于产生具有驱动感性负载的占空比的脉冲信号的脉冲发生器，用于设置用于反馈的占空比的反馈设置部分，用于设置检测占空比的检测设定部分 感应负载的固有振动频率的固有振动频率设定部，其基于在设定检测用占空比时检​​测到的实际电流值来设定感性负载的固有振动频率;以及选择部，用于选择反馈设定 作为正常时的占空比设定部，并且当满足用于检测固有振动频率的条件时，选择检测设定部作为占空比设定部。

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：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：US20140210395A1

公开(公告)日：2014-07-31

申请号：US14149369

申请日：2014-01-07

Applicant: Denso Corporation

Inventor： Hiromitsu NAGATA ,  Jun YAMADA ,  Kazuhiro YOSHIDA

IPC: H02P31/00

CPC classification number: H02P31/00 ,  F16H59/08 ,  F16H61/32 ,  F16H2061/247 ,  F16H2061/283 ,  F16H2061/326 ,  H02P17/00

Abstract: A range switching device may switch a shift range despite resetting and restarting of a controller. When the controller is reset and restarted during a switching operation of the shift range and the shift range before or after being switched is a P range, the controller controls a motor to rotate the motor until a range switching mechanism abuts against a first limit position of a movable range of the range switching mechanism and learns a rotation position of the motor as a reference position of the motor. When the shift ranges before and after being switched are the ranges other that the P range, the controller controls the motor to rotate until the range switching mechanism abuts against a second limit position of the movable range and learns the rotation position of the motor as the reference position.

Abstract translation: 尽管控制器的复位和重新启动，量程切换装置可以切换换档范围。 当控制器在变速范围的切换操作期间被复位并重启时，切换前后的换档范围是P档时，控制器控制马达使马达旋转，直到范围切换机构抵住第一极限位置 范围切换机构的可移动范围，并且学习马达的旋转位置作为马达的参考位置。 当切换前后的移动范围是P范围以外的范围时，控制器控制马达旋转直到范围切换机构抵靠可移动范围的第二极限位置，并且将马达的旋转位置学习为 参考位置。