[특허]Apparatus and method for controlling damping force characteristic of vehicular shock absorber

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B60G-025/00 B60G-017/015 B60G-011/32 B60G-017/00 G06F-017/00
출원번호	US-0053046 (1998-04-01)
우선권정보	JP-0089178 (1997-04-08)
발명자 / 주소	Hiramoto Michiya,JPX
출원인 / 주소	Unisia Jecs Corporation, JPX
대리인 / 주소	Foley & Lardner
인용정보	피인용 횟수 : 43 인용 특허 : 22

초록 ▼

A damping force characteristic variable type shock absorber which takes a mode of operation into a first mode, a second mode, a third mode, and a fourth mode is connected to a damping force characteristic basic mode switching block and a damping force characteristic special mode switching block. Thi

A damping force characteristic variable type shock absorber which takes a mode of operation into a first mode, a second mode, a third mode, and a fourth mode is connected to a damping force characteristic basic mode switching block and a damping force characteristic special mode switching block. This first mode is such that when the vehicular vertical direction determined by the vehicular vertical behavior determinator is upward, an extension phase provides a relatively high damping force characteristic and a compression phase provides a relatively low damping force characteristic. The second mode is such that when the vehicular vertical direction determined by the vehicular vertical behavior determinator is downward, the extension phase provides a relatively low damping force characteristic and the compression phase provides a relatively highly damping force characteristic. The third mode is such that when the vehicular vertical behavior determinator is neither upward nor downward, both of extension and compression phases provide the relatively low damping force characteristics. The fourth mode is such that when a predetermined condition of a vehicular motion is satisfied, the damping force characteristics in both extension and compression phases are relatively high.

대표청구항 ▼

[ What is claimed is:] [1.] A method for controlling a damping force characteristic for a vehicular shock absorber, the shock absorber being so arranged and constructed as to take a first mode of operation such as to provide a relatively high damping force characteristic for a damping force characte

[ What is claimed is:] [1.] A method for controlling a damping force characteristic for a vehicular shock absorber, the shock absorber being so arranged and constructed as to take a first mode of operation such as to provide a relatively high damping force characteristic for a damping force characteristic in an extension phase while providing a relatively low damping force characteristic in a compression phase, a second mode of operation such as to provide the relatively high damping force characteristic for the damping force characteristic in the compression phase while providing the relatively low damping force characteristic for the damping force characteristic in the extension phase, a third mode of operation such as to provide the relatively low damping force characteristics for the damping force characteristics in both of the extension and compression phases, and a fourth mode of operation such as to provide the relatively high damping force characteristics in both of the extension and compression phases, the method comprising the steps of determining a vertical behavior of the sprung mass of a vehicle body; determining a direction of the determined vertical behavior of the vehicle body; switching a present mode of operation of the shock absorber into the first mode of operation when the direction of the determined vertical behavior is upward; switching the present mode of operation into the second mode when the direction of the determined vertical behavior is downward; and switching the present mode of operation into the third mode when the direction of the determined vertical behavior is neither upward nor downward; determining whether a predetermined condition on a vehicular behavior is satisfied; and switching the present mode of operation of the shock absorber into the fourth mode of operation when the predetermined condition is satisfied.

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이 특허에 인용된 특허 (22) 인용/피인용 타임라인 분석

Sasaki Mitsuo,JPX ; Iwasaki Katsuya,JPX, Apparatus and method for controlling damping force characteristic of vehicle suspension system.
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Iwasaki Katsuya,JPX ; Sasaki Mitsuo,JPX, Apparatus and method for controlling damping force characteristic of vehicular shock absorber.
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Sasaki Mitsuo (Atsugi City JPX) Hirai Toshiro (Atsugi City JPX), Apparatus and method for controlling damping force characteristic of vehicular shock absorber.
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Sasaki Mitsuo (Atsugi JPX) Yamaguchi Hiroyuki (Atsugi JPX) Fuchida Takeshi (Atsugi JPX), Apparatus and method for controlling damping force characteristic of vehicular shock absorber.
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Sasaki Mitsuo,JPX, Apparatus and method for controlling damping force characteristic of vehicular suspension system.
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Sasaki Mitsuo,JPX, Apparatus and method for controlling damping force characteristic of vehicular suspension system.
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Sasaki Mitsuo,JPX, Automotive vehicle suspension control apparatus.
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Iwasaki Katsuya,JPX, Automotive vehicle suspension control system.
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Iwasaki Katsuya,JPX, Automotive vehicle suspension control system.
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Iwasaki Katsuya,JPX, Control apparatus and method for vehicular suspension system.
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Inoue Hideo (Asigarakami-gun JPX) Kamimae Hajime (Okazaki JPX) Morita Mitsuhiko (Susono JPX) Kojima Hiroyoshi (Nishio JPX), Damping force control system for automotive vehicle.
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Masamura Tatsuya (Gifu JPX) Kitamura Kenji (Gifu JPX) Takase Koji (Gifu JPX) Mizumukai Ken (Aichi JPX), Hydraulic damper with variable damping characteristics in compression and extension.
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Tsutsumi Yasuhiro (Susono JPX) Yokoya Yuji (Toyota JPX) Hara Yoshimichi (Kuwana JPX) Matsunaga Eiju (Anjou JPX) Kawata Hiroyuki (Chiryu JPX) Fukami Akira (Okazaki JPX) Suzuki Yutaka (Nishio JPX), Suspension control system.
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Shimizu Hiroyuki (Kanagawa JPX) Kimura Makoto (Kanagawa JPX) Takahashi Toru (Kanagawa JPX) Emura Junichi (Kanagawa JPX) Kakizaki Shinobu (Kanagawa JPX), Suspension control system for automotive vehicle including apparatus for controlling shock absorber damping force coeffi.
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Uchiyama Masaaki,JPX, Suspension control system having a shock absorber controlled to predetermine compression and extension damping forces wh.
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Yamaoka Fumiyuki (Atsugi JPX) Takahashi Toru (Atsugi JPX) Okamura Tetsuya (Atsugi JPX) Nakamura Michiya (Atsugi JPX), System for controlling damping force characteristic of shock absorber of vehicle.
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Stacey Scott A. (Kettering OH) Arwine Joan B. (Miamisburg OH), Vehicle suspension control with wheel and body demand force phase determination.
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Kimura Makoto (Atsugi JPX), Vehicular suspension system utilizing variable damping force shock absorber.
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