公开(公告)号：US20160334012A1

公开(公告)日：2016-11-17

申请号：US15149362

申请日：2016-05-09

Applicant: DENSO CORPORATION

Inventor： Akira SAKAI ,  Fuminori SUZUKI

IPC: F16H61/02 ,  F15B13/04 ,  F15B15/14

CPC classification number: F16H61/0276 ,  F15B13/0402 ,  F15B13/044 ,  F15B15/14 ,  F15B21/041 ,  F15B2211/3059 ,  F15B2211/328 ,  F15B2211/655 ,  F16H2061/0043 ,  F16H2061/0279

Abstract: An oil pressure control device controls a supply pressure of oil supplied to an oil pressure chamber of a friction element having a first engagement board and a second engagement board engaged with or disengaged from each other between a non-engagement state and a non-sliding engagement state via a sliding engagement state. The oil pressure control device includes: an electromagnetic valve that controls the supply pressure using a spool which reciprocates according to an energizing amount; and a control part that defines a first oscillatory wave part in which the energizing amount is controlled by making a first waveform with a first frequency to superimpose on a second waveform with a second frequency higher than the first frequency during a first period while the sliding engagement state and an instruction value of the supply pressure are kept constant.

Abstract translation: 油压控制装置控制提供给具有第一接合板和第二接合板的摩擦元件的油压室的供油压力，所述第一接合板和第二接合板在非接合状态和非滑动接合之间彼此接合或分离 通过滑动接合状态。 油压控制装置包括：电磁阀，其使用根据通电量往复运动的线轴来控制供给压力; 以及控制部，其通过在第一时段中使具有第一频率的第一波形与第一频率高于第一频率的第二频率叠加在第二波形上来限制激励量的第一振荡波部分， 状态和供给压力的指令值保持恒定。

公开(公告)号：US20160153554A1

公开(公告)日：2016-06-02

申请号：US14952849

申请日：2015-11-25

Applicant: DENSO CORPORATION

Inventor： Fuminori SUZUKI

IPC: F16H61/32 ,  F16H59/08 ,  F15B21/04

CPC classification number: F16H61/32 ,  F16H61/0206 ,  F16H61/0286 ,  F16H2061/0043 ,  F16H2061/326

Abstract: A normal oil passage that supplies hydraulic pressure to a friction engagement element through a hydraulic control valve, and a bypass oil passage that supplies hydraulic pressure to the friction engagement element while bypassing the hydraulic control valve, are provided. By switching an operative position of a manual valve, a hydraulic pressure supply route to the friction engagement element is switched between the normal oil passage and the bypass oil passage. By switching to the bypass oil passage, the hydraulic pressure supplied to the friction engagement element is not affected by operation of the hydraulic control valve, and a cleaning control may be performed to cause the hydraulic control valve to perform a cleaning operation. Accordingly, even if an operation amount of the cleaning control for the hydraulic control valve is increased, malfunctions by the friction engagement element will not occur.

Abstract translation: 提供了通过液压控制阀向摩擦接合元件供给液压的正常油路，以及旁路液压控制阀时向摩擦接合元件供给液压的旁通油路。 通过切换手动阀的操作位置，在正常油路和旁通油路之间切换到摩擦接合元件的液压供给路径。 通过切换到旁通油路，供给到摩擦接合元件的液压不受液压控制阀的操作的影响，并且可以执行清洁控制以使液压控制阀进行清洁操作。 因此，即使液压控制阀的清洗控制的操作量增加，也不会发生摩擦接合元件的故障。

公开(公告)号：US20160153449A1

公开(公告)日：2016-06-02

申请号：US14952844

申请日：2015-11-25

Applicant: DENSO CORPORATION

Inventor： Fuminori SUZUKI

IPC: F04C2/34 ,  F04C15/06

CPC classification number: F16H61/00 ,  B60Y2200/92 ,  F04C2/344 ,  F04C14/22 ,  F04C28/24 ,  F04C2270/52 ,  F16H61/0025 ,  F16H61/0251 ,  F16H2061/0253

Abstract: A variable capacity type oil pump, which is driven by an engine, supplies hydraulic pressure to a hydraulic control circuit of an automatic transmission. A range switch mechanism, which includes a motor as a motive power source, switches a shift range of the automatic transmission. Further, a switch operation mechanism, which switches a discharge amount of the oil pump, is driven by the motor of the range switch mechanism. In this case, an operative position of the switch operation mechanism is switched by the motor according to an input rotation speed of the oil pump, thereby switching the discharge amount of the oil pump. Accordingly, the motor of the range switch mechanism is used to drive the switch operation mechanism to switch the discharge amount of the oil pump, and thus a motive power source dedicated to changing the discharge amount of the oil pump is not needed.

Abstract translation: 由发动机驱动的可变容量型油泵将液压提供给自动变速器的液压控制回路。 包括作为动力源的电动机的量程开关机构切换自动变速器的变速范围。 此外，切换油泵的排出量的切换操作机构由范围切换机构的马达驱动。 在这种情况下，开关操作机构的操作位置由马达根据油泵的输入转速切换，从而切换油泵的排出量。 因此，距离开关机构的电动机用于驱动开关操作机构切换油泵的排出量，因此不需要专门用于改变油泵的排出量的动力源。

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：US20140254058A1

公开(公告)日：2014-09-11

申请号：US14199062

申请日：2014-03-06

Applicant: DENSO CORPORATION

Inventor： Fuminori SUZUKI ,  Yuuta MIZUNO

IPC: H01H47/32

CPC classification number: H01H47/325

Abstract: A current control device sets a target current value of a solenoid, and sets a duty ratio of a PWM signal outputted to a drive circuit of a solenoid based on the target current value. The target current value is a value that periodically varies in a dither period longer than a PWM period of the PWM signal. A setting period of the target current value and a setting period of the duty ratio are shorter than the dither period. As compared with a configuration where the duty ratio is set in the dither period, a time period from a time a basic current value is changed to a time the duty ratio is renewed is shortened. A operation responsiveness of a movable core of the solenoid improves.

Abstract translation: 电流控制装置设定螺线管的目标电流值，并根据目标电流值设定输出到螺线管的驱动电路的PWM信号的占空比。 目标电流值是在比PWM信号的PWM周期长的抖动期间周期性变化的值。 目标电流值的设定期间和占空比的设定期间比抖动期间短。 与在抖动期间设定占空比的结构相比，从基本电流值变为时间到占空比更新的时间段变短。 螺线管的可动铁芯的操作响应性提高。

公开(公告)号：US20160131248A1

公开(公告)日：2016-05-12

申请号：US14926040

申请日：2015-10-29

Applicant: DENSO CORPORATION

Inventor： Yuta MIZUNO ,  Fuminori SUZUKI

IPC: F16H61/00 ,  F16H61/02

CPC classification number: F16H61/0021 ,  F16H61/0202 ,  F16H61/12 ,  F16H2059/683 ,  F16H2061/1208 ,  F16H2061/1224 ,  F16H2061/1264

Abstract: An electronic control unit that is used in an automatic transmission to regulate oil circulation. The electronic control unit includes a switcher that supplies an electric current to a linear solenoid, a current detector that detects an actual electric current value of the solenoid, a target current calculator that calculates a target electric current value, a feedback controller that sets a duty ratio to match the actual electric current value to the target electric current value and to generate a Pulse Width Modulation (PWM) signal having the set duty ratio, and a corrector that determines whether a coupled oscillation has occurred by obtaining oil pressure information of the hydraulic circuit and to correct the PWM signal when determining that the vibration has occurred.

Abstract translation: 一种用于自动变速器调节油循环的电子控制单元。 电子控制单元包括向线性电磁线圈提供电流的切换器，检测螺线管的实际电流值的电流检测器，计算目标电流值的目标电流计算器，设定值的反馈控制器 比率以将实际电流值与目标电流值相匹配，并产生具有设定占空比的脉宽调制（PWM）信号，以及校正器，其通过获得液压的油压信息来确定是否发生耦合振荡 并在确定发生振动时校正PWM信号。

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：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：US20200208739A1

公开(公告)日：2020-07-02

申请号：US16812616

申请日：2020-03-09

Applicant: DENSO CORPORATION

Inventor： Masashi NAKAGAWA ,  Fuminori SUZUKI ,  Kengo TAKEI

IPC: F16H61/02 ,  G01R19/00

Abstract: A current control device brings, after a target current has been changed to an upper side, a solenoid into a full-on state at a first timing that arrives in a predetermined control transition cycle shorter than an on-off cycle, determines whether an excitation current has become equal to or larger than a full-on threshold larger than the target current, brings the solenoid into a full-off state at a first timing that arrives in a predetermined energization switching cycle shorter than the on-off cycle after the excitation current has become equal to or larger than the full-on threshold, determines whether the excitation current has become equal to or smaller than a full-off threshold smaller than the target current, and causes a transition to a steady control at a first timing that arrives in the control transition cycle after the excitation current has become equal to or smaller than the full-off threshold.