JPS6455445A - Damping force detector and shock absorber controller - Google Patents
Damping force detector and shock absorber controllerInfo
- 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
Links
- 238000013016 damping Methods 0.000 title abstract 8
- 239000006096 absorbing agent Substances 0.000 title abstract 6
- 230000035939 shock Effects 0.000 title abstract 6
- 239000000919 ceramic Substances 0.000 abstract 1
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)
- Vehicle Body Suspensions (AREA)
- Fluid-Damping Devices (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.
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)
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)
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 |
-
1987
- 1987-08-24 JP JP20977487A patent/JPS6455445A/en active Granted
Patent Citations (3)
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)
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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