公开(公告)号：US20200216139A1

公开(公告)日：2020-07-09

申请号：US15751751

申请日：2017-03-07

Applicant: Showa Corporation

Inventor： Yosuke MURAKAMI ,  Hiroyuki MIYATA ,  Fumiaki ISHIKAWA

IPC: B62K25/28 ,  B62K25/08 ,  B60G17/015 ,  B60G17/018 ,  F16F13/00

Abstract: A vehicle height adjustment device includes a rear suspension, an electromagnetic valve control unit, and a weight estimation unit. The rear suspension includes a support member. The electromagnetic valve control unit determines a target movement based on an interrelation between the target movement and a weight applied to a vehicle, under which the target movement is set to an upper limit when the weight is larger than a predetermined weight, so that an actual movement of the support member reaches the target movement. The electromagnetic valve control unit determines the target movement based on a temporary weight. The weight estimation unit increases the temporary weight, even when the actual movement reached the target movement. The electromagnetic valve control unit decreases the target length, even when the temporary weight increased. The weight estimation unit estimates as the weight the temporary weight when the actual length has finally reached the target length.

公开(公告)号：US20200171906A1

公开(公告)日：2020-06-04

申请号：US16782629

申请日：2020-02-05

Applicant: SHOWA CORPORATION

Inventor： Yosuke MURAKAMI

IPC: B60G17/0165 ,  B62K25/04 ,  B62J45/20

Abstract: A suspension device includes: a damping device that damps a force generated between a vehicle body and a wheel of a vehicle; a determination unit that determines whether the vehicle is jumping, using an acceleration of the vehicle in a front-rear direction, an acceleration of the vehicle in a left-right direction, and an acceleration of the vehicle in a vertical direction; and a damping force control unit that increases a damping force of the damping device so as to be greater than the damping force generated when the determination unit does not determine that the vehicle is jumping, when the determination unit determines that the vehicle is jumping.

公开(公告)号：US20200070613A1

公开(公告)日：2020-03-05

申请号：US16670078

申请日：2019-10-31

Applicant: Showa Corporation

Inventor： Masato TOKUHARA

IPC: B60G17/016 ,  B60W30/14

Abstract: A control apparatus for a suspension apparatus, includes: a vehicle speed acquiring section which acquires a vehicle speed as a speed of a vehicle; an acquisition section which acquires a stroke velocity of the suspension apparatus; a contribution ratio determining section which determines a contribution ratio between a first parameter and a second parameter based on the vehicle speed, the first parameter serving for controlling a damping force in a first speed region of the vehicle, the second parameter serving for controlling the damping force in a second speed region which is a speed region higher in speed than the first speed region; a change amount restricting section which restricts a change amount of the contribution ratio; and a damping force controlling section which controls the damping force of the suspension apparatus based on the restricted contribution ratio and the stroke velocity.

公开(公告)号：US20200062070A1

公开(公告)日：2020-02-27

申请号：US16669153

申请日：2019-10-30

Applicant: Showa Corporation

Inventor： Taiji FUKAZAWA ,  Kota SUZUKI

IPC: B60G17/016

Abstract: A suspension apparatus includes: a damping device which damps a force generated between a vehicle body and a wheel; and a control section which controls a damping force of the damping device. The control section includes a multiplication section which multiplies a longitudinal acceleration of the vehicle body detected by a longitudinal acceleration sensor and a differential value of the longitudinal acceleration to thereby obtain a multiplication value.

公开(公告)号：US20200032852A1

公开(公告)日：2020-01-30

申请号：US16496330

申请日：2017-05-17

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

Inventor： Yuta SAITO ,  Takahiro NAKAYAMA ,  Sato KURAISHI

IPC: F16D3/41 ,  F16D3/38

Abstract: A cross joint comprises a flange yoke and a stab yoke, each comprising a based end portion and a pair of arm portions having a shaft hole and extending from both sides of the base end portion, and a spider having a first shaft fitted into the shaft hole of the flange yoke and a second shaft fitted into the shaft hole of the stab yoke, wherein the cross joint further comprises a flexing limiting portion, which limits a flexing angle of the cross joint due to mutual contact of a protruding portion of the base end portion and a flange portion of the spider when the flange yoke is flexed to a predetermined angle.

公开(公告)号：US20190301005A1

公开(公告)日：2019-10-03

申请号：US16307403

申请日：2017-06-15

Applicant: RC-LOGO CO., LTD. ,  SHOWA CORPORATION

Inventor： Kimio ITO ,  Shigeki AWASA ,  Kohei YAMAMOTO

IPC: C23C14/08 ,  C23C14/32

Abstract: A sliding member for vehicular suspension includes a wear resistant layer having appropriate mechanical strength and high designability on its outer peripheral sliding face and a method for producing the same. On an outer peripheral sliding face of the sliding member for vehicular suspension, a colored wear resistant layer formed by an ion plating method and having a film thickness of 0.75 μm or more and 10 μm or less is included; and in the wear resistant layer, a dark blue titanium oxide layer, a titanium intermediate layer, and a colored titanium oxide layer are laminated in this order from the inner peripheral side toward the outer peripheral side.

公开(公告)号：US10302084B2

公开(公告)日：2019-05-28

申请号：US15373643

申请日：2016-12-09

Applicant: Showa Corporation

Inventor： Toshio Nishikawa

IPC: F01C21/08 ,  F01C21/10 ,  F04C15/06 ,  F04C2/344

Abstract: An embodiment provides an inner plate including a high pressure side discharge through-hole through which a working fluid is discharged from a pump chamber; an inner-plate high pressure side through-hole through which the working fluid is guided to a columnar groove of a vane groove; and an inner-plate high pressure side recess portion that is a groove facing a columnar groove among multiple columnar grooves. An outer plate includes a high pressure side upstream recess portion; a high pressure side downstream recess portion; and a high pressure side connection recess portion through which the high pressure side upstream recess portion and the high pressure side downstream recess portion are connected to each other, and which has a passage area smaller than that of the high pressure side downstream recess portion.

公开(公告)号：US10295008B2

公开(公告)日：2019-05-21

申请号：US15230899

申请日：2016-08-08

Applicant: Showa Corporation

Inventor： Gota Nakano

IPC: F16F9/34 ,  B60G13/08 ,  F16F9/19 ,  F16F9/18

Abstract: A pressure damping device includes a cylinder, a partitioning section, a flow channel formation section, a valve section a bypass channel and a throttle section. The flow channel formation section forms a flow channel, through which the fluid flows, in conjunction with a movement of the partitioning section. The valve section controls a flow of the fluid in the flow channel of the flow channel formation section. The bypass channel forms a flow of the fluid that bypasses the flow of the fluid flowing through the flow channel while opening the valve section. The throttle section that throttles the flow of the fluid through the bypass channel further on an outer side than the valve section with respect to the flow channel formation section.

公开(公告)号：US20190127016A1

公开(公告)日：2019-05-02

申请号：US16089197

申请日：2017-02-08

Applicant: Showa Corporation

Inventor： Yosuke MURAKAMI ,  Kazuhiro MIWA ,  Naoya KUROIWA

IPC: B62K25/08 ,  F16F9/46 ,  F16F9/56

Abstract: A hydraulic shock absorber includes a control valve. The control valve includes a valve seat formed with a closing face, a valve body configured to come into contact with the closing face, and a valve shaft configured to transmit an operation force applied from a driving unit to the valve body. The control valve is defined with an upstream side flow channel extending from an inlet coupled to the upper end opening, via a space in which the valve body moves, to the closing face, and a downstream side flow channel extending from the closing face to an outlet. The control valve is disposed above the cylinder so that a central axis of the valve shaft is inclined relative to a central axis of the vehicle body side tube and the wheel side tube.

公开(公告)号：US10273982B2

公开(公告)日：2019-04-30

申请号：US14517271

申请日：2014-10-17

Applicant: Showa Corporation

Inventor： Hayato Tsutsui ,  Nobuaki Tanaka ,  Takeshi Ueki

IPC: F04B39/08 ,  F15B11/028 ,  F15B13/01 ,  F15B15/18 ,  F04C2/08 ,  F04C2/18 ,  F04C15/06

Abstract: A first case accommodating a first check valve of a switching valve switching a flow of hydraulic fluid to one of a first chamber and a second chamber of a cylinder device, an inside of which is segmented into the first chamber and the second chamber by a piston, and a second case which is stacked on the first case and in which a first actuation valve of the switching valve is accommodated to be displaced in a direction of stacking the first case are provided. A first valve chamber, accommodating the first actuation valve, of the second case has a pressure receiving surface on which pressure of hydraulic fluid that acts on the first valve chamber acts toward the first case.