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公开(公告)号：US10124644B2
公开(公告)日：2018-11-13
申请号：US15125979
申请日：2015-04-23
Applicant: KYB Corporation
Inventor： Norihiko Kurita
IPC: B60G17/016 , B62K25/04 , B60G17/08
Abstract: A damper control device includes a rate sensor that detects a pitching angular velocity of a vehicle body, a vehicle speed sensor, a steering angle sensor and a calculation unit that detect a roll angle and a yaw angular velocity of the vehicle body, a pressure sensor that detects a pressure of a contraction-side chamber in a front-wheel side damper, a pressure sensor that detects a pressure of a contraction-side chamber in a rear-wheel side damper, and a correction unit that corrects the pitching angular velocity. The pressures are controlled on the basis of the corrected pitching angular velocity and the pressures. The vehicle speed sensor, the steering angle sensor and the calculation unit detect the roll angle and the yaw angular velocity on the basis of a traveling speed and a steering angle.
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Patent Agency Ranking
公开(公告)号：US09751373B2
公开(公告)日：2017-09-05
申请号：US15126184
申请日：2015-04-23
Applicant: KYB Corporation
Inventor： Norihiko Kurita
IPC: B60G17/016 , B60G17/018 , B62K25/04 , B60G17/019 , B60G17/08
CPC classification number: B60G17/016 , B60G17/0182 , B60G17/01908 , B60G17/01933 , B60G17/08 , B60G2202/24 , B60G2300/12 , B60G2400/0511 , B60G2400/0522 , B60G2400/0523 , B60G2500/10 , B60G2800/014 , B62K25/04
Abstract: The damper control device includes a three axis rate sensor that detects a pitching angular velocity of a vehicle body of a two-wheeled vehicle, a pressure sensor that detects a pressure of a contraction-side chamber in a front-wheel side damper, a pressure sensor that detects a pressure of a contraction-side chamber of a rear-wheel side damper, and a correction unit that corrects the pitching angular velocity. The damper control device controls the pressure of the contraction-side chamber in the front-wheel side damper and the pressure of the contraction-side chamber of the rear-wheel side damper on the basis of the corrected pitching angular velocity, the pressure of the contraction-side chamber in the front-wheel side damper and the pressure of the contraction-side chamber of the rear-wheel side damper.
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公开(公告)号：US10035398B2
公开(公告)日：2018-07-31
申请号：US15125240
申请日：2015-07-22
Applicant: KYB Corporation
Inventor： Norihiko Kurita
IPC: B60G17/08 , B60G17/015 , F16F9/46 , F16F9/512 , B60G17/018
CPC classification number: B60G17/015 , B60G17/018 , B60G17/08 , B60G2202/24 , B60G2202/414 , B60G2400/20 , B60G2400/50 , B60G2500/10 , B60G2500/11 , B60G2600/14 , F16F9/46 , F16F9/512
Abstract: A damper control device feeds back a pressure within an extension-side chamber to control an extension-side solenoid valve that adjusts the pressure within the extension-side chamber, and feeds back a pressure within a compression-side chamber to control a compression-side solenoid valve that adjusts the pressure within the compression-side chamber. The damper control device performs a compression-side reduction correction which reduces a compression-side current supplied to the compression-side solenoid valve during extension of a damper, and performs an extension-side reduction correction which reduces an extension-side current supplied to the extension-side solenoid valve during contraction of the damper.
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公开(公告)号：US20190048966A1
公开(公告)日：2019-02-14
申请号：US16055569
申请日：2018-08-06
Applicant: KYB CORPORATION
Inventor： Norihiko Kurita
Abstract: A shock absorber according to the present invention includes a shock absorber main body in which an internal air pressure is set to a pressure exceeding an atmospheric pressure, a relief valve configured to open when the air pressure in an air chamber of the shock absorber main body reaches a valve opening pressure, and a lock device capable of maintaining the relief valve in a closed state, and the air pressure in the shock absorber main body can be adjusted to the valve opening pressure of the relief valve.
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公开(公告)号：US10138977B2
公开(公告)日：2018-11-27
申请号：US15125994
申请日：2015-10-05
Applicant: KYB Corporation
Inventor： Norihiko Kurita
Abstract: A controller of a shock absorber has a differential path configured to perform derivative compensation on the basis of a difference between a target pressure and a detected pressure or on the basis of the detected pressure, multiply the compensated value by a negative gain, and output a resulting value of the multiplication, and obtains an electric current instruction applied to a pressure control solenoid valve.
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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
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.
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