Patent US4635959A successfully refreshed from Google Patents.
US4635959A
Expired / Lapsed
US
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Shock absorber control system
Assignee: Denso Corp
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Filing: 1985-04-29
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Granted: 1987-01-13
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Expires: 2005-04-29
Abstract
Abstract A shock absorber control system comprises a plurality of switches for setting respective desired dampening forces, and controls a dampening force of a vehicle shock absorber linearly in accordance with a manipulation of one of the switches. The control system further comprises a height sensor for detecting a height of the vehicle and detects the dampening force of the shock absorber by the change of the detected height and corrects the dampening force of the shock absorber in accordance with a difference between the desired dampening force corresponding to the manipulated switch and the detected dampening force.
Inventors
- 👤 Yoshihisa Nakano
- 👤 Masatoshi Ohira
- 👤 Manabu Ushida
- 👤 Tomoyuki Miyagawa
- 👤 Toshiya Shimodaira
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:13
CPC Classifications
B; B60; B60G; B60G17/00; B60G17/015; B60G17/018; F; F16; F16F; F16F9/00; F16F9/32; F16F9/44; F16F9/46; F16F9/466; F16F9/467; F16F9/468
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
117 words
A shock absorber control system for controlling a dampening force of a shock absorber of a vehicle comprising: setting means for setting a desired dampening force changeable within a predetermined range; drive means for driving said shock absorber to change the dampening force of said shock absorber linearly; control means for controlling said drive means in accordance with said desired dampening force when the setting of said desired dampening force has been changed; detecting means for detecting an actual dampening force of said shock absorber; correcting means for correcting the dampening force of said shock absorber by controlling said drive means in accordance with a difference between said desired dampening force and said detected actual dampening force.
Claim 2
Dependent Claim
117 words
A shock absorber control system for controlling a dampening force of a shock absorber of a vehicle comprising: setting means for setting a desired dampening force changeable within a predetermined range; drive means for driving said shock absorber to change the dampening force of said shock absorber linearly; control means for controlling said drive means in accordance with said desired dampening force when the setting of said desired dampening force has been changed; detecting means for detecting an actual dampening force of said shock absorber; correcting means for correcting the dampening force of said shock absorber by controlling said drive means in accordance with a difference between said desired dampening force and said detected actual dampening force.
Claim 3
Dependent Claim
32 words
A control system according to claim 1, wherein said difference is nonvolatilely stored and said control means controls said drive means in accordance with said desired dampening force and said stored difference.
Claim 4
Dependent Claim
37 words
A control system according to claim 1, wherein said setting means has a plurality of switches which respectively mean desired dampening forces and sets said desired dampening force in response to a manipulated one of said switches.
Claim 5
Dependent Claim
118 words
A shock absorber control system for controlling a dampening force of a shock absorber of a vehicle comprising: setting means for setting a desired dampening force; drive means for driving said shock absorber to change the dampening force of said shock absorber; deciding means for deciding whether or not a dampening state of the vehicle excesseds a predetermined value; detecting means for detecting an actual dampening force of said shock absorber by the change of the dampening state of the vehicle from the time when the decision of said deciding means has become positive; control means for controlling said drive means to make the actual dampening force detected by said detecting means correspond with said desired dampening force.
Claim 6
Dependent Claim
118 words
A shock absorber control system for controlling a dampening force of a shock absorber of a vehicle comprising: setting means for setting a desired dampening force; drive means for driving said shock absorber to change the dampening force of said shock absorber; deciding means for deciding whether or not a dampening state of the vehicle excesseds a predetermined value; detecting means for detecting an actual dampening force of said shock absorber by the change of the dampening state of the vehicle from the time when the decision of said deciding means has become positive; control means for controlling said drive means to make the actual dampening force detected by said detecting means correspond with said desired dampening force.
Claim 7
Dependent Claim
122 words
A shock absorber control system for controlling a dampening force of a shock absorber of a vehicle comprising: setting means for setting a desired dampening force; drive means for driving said shock absorber to change the dampening force of said shock absorber; a height sensor for detecting a height of the vehicle; deciding means for deceding whether or not the detected height exceeds a predetermined value; detecting means for detecting an actual dampening force of said shock absorber by the change of the detected height from the time when the decision of said deciding means has become positive; control means for controlling said drive means to make the actual dampening force detected by said detecting means correspond with said desired dampening force.
Claim 8
Dependent Claim
122 words
A shock absorber control system for controlling a dampening force of a shock absorber of a vehicle comprising: setting means for setting a desired dampening force; drive means for driving said shock absorber to change the dampening force of said shock absorber; a height sensor for detecting a height of the vehicle; deciding means for deceding whether or not the detected height exceeds a predetermined value; detecting means for detecting an actual dampening force of said shock absorber by the change of the detected height from the time when the decision of said deciding means has become positive; control means for controlling said drive means to make the actual dampening force detected by said detecting means correspond with said desired dampening force.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-01-12 | 1990-07-14 | 1991-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-01-12 | 1994-07-14 | 1995-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-01-12 | 1998-07-14 | 1999-01-13 | $7700.00 | Window Closed / Lapsed |