JPS6455445A - Damping force detector and shock absorber controller - Google Patents

Damping force detector and shock absorber controller

Info

Publication number
JPS6455445A
JPS6455445A JP20977487A JP20977487A JPS6455445A JP S6455445 A JPS6455445 A JP S6455445A JP 20977487 A JP20977487 A JP 20977487A JP 20977487 A JP20977487 A JP 20977487A JP S6455445 A JPS6455445 A JP S6455445A
Authority
JP
Japan
Prior art keywords
damping force
shock absorber
piston rod
piezoelectric element
force
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP20977487A
Other languages
Japanese (ja)
Other versions
JPH0461980B2 (en
Inventor
Yasumasa Hagiwara
Toshinobu Ishida
Shigeru Kamiya
Hideaki Sasaya
Yutaka Suzuki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Denso Corp
Soken Inc
Original Assignee
Nippon Soken Inc
NipponDenso Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Soken Inc, NipponDenso Co Ltd filed Critical Nippon Soken Inc
Priority to JP20977487A priority Critical patent/JPS6455445A/en
Publication of JPS6455445A publication Critical patent/JPS6455445A/en
Publication of JPH0461980B2 publication Critical patent/JPH0461980B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
    • B60G17/019—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the type of sensor or the arrangement thereof
    • B60G17/01941—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the type of sensor or the arrangement thereof characterised by the use of piezoelectric elements, e.g. sensors or actuators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2401/00—Indexing codes relating to the type of sensors based on the principle of their operation
    • B60G2401/10—Piezoelectric elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Damping Devices (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

PURPOSE:To measure damping force directly and accurately by securing a piezoelectric element to the piston rod of a shock absorber and providing a pressurizing member for transmitting distortion produced in the piston rod along sliding direction through the force telescoping the shock absorber to the piezoelectric member. CONSTITUTION:A piston rod 6 has a piezo-actuator 11FL for switching the damping force of a variable damping force shock absorber 1FL and a piezo- damping force sensor 12FL for detecting the damping force of the shock absorber 1FL. The sensor 12FL screws a piezoelectric element 19FL made of piezoelectric ceramic such as PZT to the piston rod 6 through a pressurizing member 20FL. A portion of force produced corresponding to axial distortion of the piston rod caused by damping force functioning onto the shock absorber 1FL is transmitted from the pressurizing member 20FL to the piezoelectric element 19FL. Since distortion of the piston rod 6 can be measured directly, damping force can be detected accurately with high response through a simple structure.
JP20977487A 1987-08-24 1987-08-24 Damping force detector and shock absorber controller Granted JPS6455445A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20977487A JPS6455445A (en) 1987-08-24 1987-08-24 Damping force detector and shock absorber controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20977487A JPS6455445A (en) 1987-08-24 1987-08-24 Damping force detector and shock absorber controller

Publications (2)

Publication Number Publication Date
JPS6455445A true JPS6455445A (en) 1989-03-02
JPH0461980B2 JPH0461980B2 (en) 1992-10-02

Family

ID=16578386

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20977487A Granted JPS6455445A (en) 1987-08-24 1987-08-24 Damping force detector and shock absorber controller

Country Status (1)

Country Link
JP (1) JPS6455445A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009501882A (en) * 2005-07-20 2009-01-22 ザ ホンコン ポリテクニック ユニヴァーシティー Magnetorheological damper and its use
US7931132B2 (en) * 2006-04-26 2011-04-26 Robert Bosch Gmbh Damper

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6182032A (en) * 1984-09-21 1986-04-25 Kayaba Ind Co Ltd Damping-force adjusting structure of hydraulic buffer
JPS6185210A (en) * 1984-10-01 1986-04-30 Nippon Soken Inc Shock absorber with adjustable damping force
JPS6229410A (en) * 1985-07-30 1987-02-07 Nippon Soken Inc Shock absorber for vehicle and shock absorber controlling device equiped with said shock absorber

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6182032A (en) * 1984-09-21 1986-04-25 Kayaba Ind Co Ltd Damping-force adjusting structure of hydraulic buffer
JPS6185210A (en) * 1984-10-01 1986-04-30 Nippon Soken Inc Shock absorber with adjustable damping force
JPS6229410A (en) * 1985-07-30 1987-02-07 Nippon Soken Inc Shock absorber for vehicle and shock absorber controlling device equiped with said shock absorber

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009501882A (en) * 2005-07-20 2009-01-22 ザ ホンコン ポリテクニック ユニヴァーシティー Magnetorheological damper and its use
JP4850248B2 (en) * 2005-07-20 2012-01-11 ザ ホンコン ポリテクニック ユニヴァーシティー Magnetorheological damper and its use
US7931132B2 (en) * 2006-04-26 2011-04-26 Robert Bosch Gmbh Damper

Also Published As

Publication number Publication date
JPH0461980B2 (en) 1992-10-02

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