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：US20220128167A1

公开(公告)日：2022-04-28

申请号：US17569998

申请日：2022-01-06

Applicant: DENSO CORPORATION

Inventor： Akira SAKAI

IPC: F16K31/06 ,  F16K27/04 ,  H01F7/08 ,  H01F7/16

Abstract: A valve portion has a sleeve and a valve body inserted into the sleeve. A solenoid portion includes a stator core having a magnetic attraction core, a sliding core, a magnetic flux passage suppressing portion, a yoke having a bottom portion, a side surface portion, and a thin wall portion, a coil portion, a plunger, and a magnetic tubular base portion. The base portion has a first tubular portion in which a first outer peripheral surface of the sleeve is press-fitted into inside and fastened to the first outer peripheral surface, a flange portion that has an outer diameter larger than the outer diameter of the first tubular portion, is arranged on an outer side in a radial direction of a second outer peripheral surface of the magnetic attraction core, and is caulked and fixed to the thin wall portion while being in contact with the yoke inside the yoke.

公开(公告)号：US20220285065A1

公开(公告)日：2022-09-08

申请号：US17752130

申请日：2022-05-24

Applicant: DENSO CORPORATION

Inventor： Akira SAKAI

IPC: H01F7/08 ,  H01F7/16 ,  F16K31/06

Abstract: In a solenoid valve, a length in an axial direction from a stator core end surface to a bottom portion of a yoke is equal to or longer than a total length in the axial direction of a shaft and a plunger. When the shaft and the plunger move to the bottom portion side, the stator core end surface and the spool end surface come into contact with each other so as to restrict a movement of a spool. A groove portion, which communicates a space formed by the stator core, the spool, and the shaft with an accommodating portion when the stator core end surface and the spool end surface come into contact with each other, is formed on at least one of the stator core end surface and the spool end surface, and a communication hole communicates an inside and an outside of the accommodating portion.