公开(公告)号：US20170297400A1

公开(公告)日：2017-10-19

申请号：US15514351

申请日：2015-10-27

Applicant: KYB Corporation

Inventor： Tomoo KUBOTA ,  Masatoshi OKUMURA

IPC: B60G17/016 ,  B60G13/06 ,  B60G17/08

CPC classification number: B60G17/0164 ,  B60G13/06 ,  B60G17/015 ,  B60G17/0165 ,  B60G17/08 ,  B60G2202/24 ,  B60G2400/10 ,  B60G2400/102 ,  B60G2400/202 ,  B60G2400/5182 ,  B60G2400/60 ,  B60G2500/10 ,  B60G2600/02

Abstract: Provided is a damper control device that exerts appropriate damping force to improve ride quality in a vehicle even when the vehicle gets over a projection on a road surface, the damper control device including a correction unit that corrects the damping force of a damper based on information from which a temporal variation amount of a damper velocity of the damper can be grasped and level information from which a damping force characteristic level that is the magnitude of a damping force characteristic of the damper can be grasped. The damper control device can suppress occurrence of distortion in a characteristic of transmission damping force regardless of the magnitude of the damping force characteristic level, and does not cause a lack of the damping force by reducing the damping force more than necessary when the damping force characteristic level is small.

公开(公告)号：US20170261389A1

公开(公告)日：2017-09-14

申请号：US15511725

申请日：2015-09-07

Applicant: KYB Corporation

Inventor： Ryota YAMADA

IPC: G01L3/10 ,  G01L25/00

CPC classification number: G01L3/107 ,  G01L3/10 ,  G01L25/00

Abstract: An inspection device for displacement sensor includes a sequence data obtaining unit configured to obtain sequence data as an output value of the displacement sensor according to input continuously changing in a constant temporal gradient; a difference calculation unit configured to obtain a difference between a value at a certain point in the sequence data and a value at a point advancing from the point by a predetermined evaluation pitch to calculate difference sequence data; a moving average calculation unit—configured to obtain a moving average of a predetermined number of data centered at a certain point in the difference sequence data to calculate post-averaged sequence data; and a determining unit configured to determine that the displacement sensor is normal when an amplitude of an output value of the post-averaged sequence data is smaller than a determination threshold for amplitude.

公开(公告)号：US20170250597A1

公开(公告)日：2017-08-31

申请号：US15518788

申请日：2015-10-27

Applicant: KYB Corporation

Inventor： Kousuke SATOU

IPC: H02K41/03 ,  H02K7/08

CPC classification number: H02K41/031 ,  H02K7/08

Abstract: A linear actuator includes; a first tube provided with a plurality of coils placed thereinside, the plurality of coils being held by a tubular yoke; a rod that is movable in an axial direction inside the yoke; a plurality of permanent magnets held by the rod while being lined up in the axial direction, the plurality of permanent magnets opposing the plurality of coils; and a detent member configured to prevent relative rotations of the first tube and the yoke.

公开(公告)号：US20170234377A1

公开(公告)日：2017-08-17

申请号：US15503235

申请日：2015-07-22

Applicant: KYB Corporation

Inventor： Tsutomu SUZUKI

IPC: F16D55/224 ,  B61H5/00 ,  F16D65/28

CPC classification number: F16D55/2245 ,  B60T13/22 ,  B61H5/00 ,  F16D65/28 ,  F16D2121/04 ,  F16D2125/582 ,  F16D2125/64

Abstract: A parking brake unit of a brake device for braking a wheel includes a first piston having a first engaging part on an inner circumference thereof, the first piston being configured to move in first direction by pressure of the hydraulic fluid supplied to a pressure chamber defined in the back thereof, a first biasing member configured to bias the first piston in second direction, opposite to the first direction, a second piston slidably provided on the inner circumference of the first piston, the second piston having a second engaging part on an outer circumference thereof, and an engaging member configured to cause the first engaging part and the second engaging part to engage with each other, in which the second piston causes a brake lining to move in direction bringing the wheel to be in a braking state, when the first piston moves in the second direction.

公开(公告)号：US20170218984A1

公开(公告)日：2017-08-03

申请号：US15310307

申请日：2015-03-20

Applicant: KYB CORPORATION

Inventor： Takayuki OGAWA

IPC: F15B15/14 ,  F16F9/18 ,  F15B15/18 ,  F16F9/32

CPC classification number: F15B15/1428 ,  F15B1/26 ,  F15B15/1433 ,  F15B15/149 ,  F15B15/18 ,  F16F9/185 ,  F16F9/32 ,  F16F9/3257 ,  F16F9/34

Abstract: An object is to provide a cylinder device which can be used successfully over a long period of time. The cylinder device includes a cylinder, a piston, an external cylinder, a tank and first piping. The piston is slidably inserted into the cylinder. The piston divides an interior of the cylinder into a rod-side chamber and a piston-side chamber. The external cylinder is disposed outside the cylinder and covers the cylinder. The tank is formed in a space between the cylinder and the external cylinder and stores an operating fluid. The first piping constitutes part of a first passage through which passes the operating fluid supplied to and discharged from the rod-side chamber or the piston-side chamber. The first piping has two ends one of which has a larger outer diameter than the other end. The first piping is disposed in the tank.

公开(公告)号：US20170211995A1

公开(公告)日：2017-07-27

申请号：US15326646

申请日：2015-07-03

Applicant: KYB Corporation

Inventor： Ryota YAMADA

IPC: G01L3/10 ,  B62D6/10 ,  G01L5/22 ,  B62D5/04

CPC classification number: G01L3/101 ,  B62D5/0409 ,  B62D6/10 ,  G01L3/104 ,  G01L5/221

Abstract: The torque sensor includes a detection unit for detecting the magnetic transition through a through hole formed so as to penetrate a radial-side surface of the housing; a housing chamber formed to be raised outward in a radial direction from an outer circumferential surface of the housing so that the through hole opens into the housing chamber accommodating the detection unit; a communication hole provided so as to extend in the tangential direction with respect to an outer circumference of the housing, the communication hole making an outside of the housing and an inside of the housing chamber communicate with each other; and an output terminal fitted into the communication hole and connected to the detection unit in a tilting state, the output terminal being configured to output a signal to the outside on the basis of a detected signal.

公开(公告)号：US09688345B2

公开(公告)日：2017-06-27

申请号：US14384307

申请日：2013-03-11

Applicant: KYB Corporation

Inventor： Tsutomu Yoshimoto ,  Yu Shibuya

IPC: F16F9/00 ,  B62K25/08 ,  B60G17/005 ,  B62K5/05 ,  B62K5/027 ,  F16F9/56 ,  B60G3/01 ,  B62K25/04

CPC classification number: B62K25/08 ,  B60G3/01 ,  B60G17/005 ,  B60G2204/46 ,  B62K5/027 ,  B62K5/05 ,  B62K2025/047 ,  F16F9/56

Abstract: A suspension device includes a main body, and a stroke locking mechanism that locks expansion/contraction of the main body. The stroke locking mechanism includes: a tube member coupled to one of a vehicle body and a vehicle wheel; a partition wall body fixed inside the tube member so as to divide an interior of the tube member into a first chamber and a second chamber; a flow passage that connects the first chamber to the second chamber; a valve that cuts off the flow passage during stroke locking; and a shaft member coupled to the other of the vehicle body and the vehicle wheel and inserted into the first chamber to be capable of advancing and retreating. The first chamber is filled with a working fluid, and the working fluid is stored in the second chamber so as to form a reservoir portion.

公开(公告)号：US09683625B2

公开(公告)日：2017-06-20

申请号：US14916063

申请日：2014-09-03

Applicant: KYB Corporation

Inventor： Norihiko Kurita

IPC: F16F9/512 ,  F16F9/50 ,  B62K25/28 ,  F16F9/19 ,  F16F9/516

CPC classification number: F16F9/512 ,  B62K25/28 ,  F16F9/19 ,  F16F9/50 ,  F16F9/5165 ,  F16F2222/12 ,  F16F2228/066

Abstract: A shock absorber includes a piston joined to a piston rod that proceeds into and recedes from a cylinder, an extension-side chamber and a compression-side chamber that are separated from each other by the piston and have a working fluid reserved therein, first and second extension-side discharge passages in which the working fluid discharged from the extension-side chamber flows, an extension-side supply passage in which the working fluid to be supplied to the compression-side chamber flows, first and second compression-side discharge passages in which the working fluid discharged from the compression-side chamber flows, and a compression-side supply passage in which the working fluid to be supplied to the extension-side chamber flows. An extension-side damping valve and a compression-side damping valve are respectively provided in the first extension-side discharge passage and the first compression-side discharge passage. An extension-side electromagnetic pressure control valve and a compression-side electromagnetic pressure control valve, which are respectively provided in the second extension-side discharge passage and the second compression-side discharge passage, are set such that the openings thereof are maximized before the piston speed reaches a high-speed range.

公开(公告)号：US20170166246A1

公开(公告)日：2017-06-15

申请号：US15115909

申请日：2015-02-04

Applicant: KYB CORPORATION

Inventor： Hiroyuki GOTOU ,  Hisazumi ISHIKAWA ,  Kazuhiro SASAKI ,  Yuichiro OKAMOTO ,  Nobuyuki KIMURA ,  Takayuki NAGASE ,  Kazuma YAMAZAKI

IPC: B62D5/04 ,  B62D6/02 ,  B62D6/10

CPC classification number: B62D5/0466 ,  B62D5/0409 ,  B62D6/02 ,  B62D6/10

Abstract: A electric power steering device includes a basic return command value calculation unit configured to calculate a basic return command value in a direction to return a steering wheel to a neutral position on the basis of a steering angle of the steering wheel, a return command value calculation unit configured to calculate a return command value by correcting the basic return command value by the first correction gain, and an opposite return command value calculation unit configured to calculate an opposite return command value in a direction not to return the steering wheel to the neutral position on the basis of an angular acceleration of an electric motor. A correction return command value is calculated on the basis of the return command value and the opposite return command value and the electric motor is driven by adding the correction return command value to the assist command value.

公开(公告)号：US20170159639A1

公开(公告)日：2017-06-08

申请号：US15324443

申请日：2015-06-25

Applicant: KYB Corporation

Inventor： Ryunosuke ISHIKAWA ,  Yoshihiro OOBAYASHI

IPC: F03C1/06 ,  F04B9/115 ,  F04B3/00 ,  F03C1/22 ,  F04B1/22

CPC classification number: F03C1/0642 ,  F03C1/0636 ,  F03C1/0665 ,  F03C1/22 ,  F04B1/20 ,  F04B1/2071 ,  F04B1/22 ,  F04B3/00 ,  F04B9/115 ,  F04B53/08 ,  F04B53/18

Abstract: A hydraulic piston pump motor in which water is used as a working fluid includes an axial directional passage opened on an end surface of one end of a shaft that couples to a cylinder block and drilled open along a shaft center of the shaft; a first radial directional passage drilled open along a radial direction of the shaft from the axial directional passage and configured to guide working fluid into a casing; a second radial directional passage drilled open from the axial directional passage along the radial direction of the shaft at a position closer to the one end of the shaft than the first radial directional passage; and an introduction passage communicating a passage, through which the higher pressure working fluid flows, among the supply passage and the discharge passage with the axial directional passage.