US4832149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for correcting the angle of attitude of an automotive vehicle
Assignee: Automobiles Peugeot SA
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Filing: 1987-12-17
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Granted: 1989-05-23
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Expires: 2007-12-17
Abstract
Abstract A device for correcting the angle of attitude of an automotive vehicle, by inducing upon at least one axle a correction of lock in accordance with parameters representative of the dynamic state of the vehicle and measured by sensors delivering corresponding electric signals, these parameters including the instantaneous speed S' of the vehicle, its angular velocity of yaw θ' and its lateral acceleration R and for computing a correcting electric signal from these parameters which is applied to the lock correcting. The correcting signal is computed by working out this signal from a value e equal to (R- θ'S')/S' or to R- θ'S'.
Inventors
- 👤 Michel G. Degonde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:26
CPC Classifications
B; B62; B62D; B62D7/00; B62D7/06; B62D7/14; B62D7/15; B62D7/159; B62D6/00; G; G05; G05D; G05D1/00; G05D1/08; G05D1/0891
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
157 words
A device for correcting the angle of attitude of an automotive vehicle which comprises, in addition to the usual control of the steering of rod wheels of an axle by a steering wheel, means inducing on at least one axle a correction of lock in accordance with parameters representative of the dynamic state of the vehicle and measured by sensors delivering corresponding electric signals, these parameters including instantaneous speed S' of the vehicle, its angular velocity of yaw θ' and its lateral acceleration R, and means for computing a correcting electric signal from these parameters which is applied to lock correcting means, wherein the improvement comprises said means for computing the correcting signal are adapted to develop this signal from a value (e) equal to (R-θ'S')/S' or to R-θ'S' in a manner of an error signal in a closed loop system, tending to reduce the correcting signal to zero by an appropriate control of the lock means.
Claim 2
Independent Claim
157 words
A device for correcting the angle of attitude of an automotive vehicle which comprises, in addition to the usual control of the steering of rod wheels of an axle by a steering wheel, means inducing on at least one axle a correction of lock in accordance with parameters representative of the dynamic state of the vehicle and measured by sensors delivering corresponding electric signals, these parameters including instantaneous speed S' of the vehicle, its angular velocity of yaw θ' and its lateral acceleration R, and means for computing a correcting electric signal from these parameters which is applied to lock correcting means, wherein the improvement comprises said means for computing the correcting signal are adapted to develop this signal from a value (e) equal to (R-θ'S')/S' or to R-θ'S' in a manner of an error signal in a closed loop system, tending to reduce the correcting signal to zero by an appropriate control of the lock means.
Claim 3
Dependent Claim
37 words
A device according to claim 1, wherein the lock correcting means are adapted to keep a velocity of lock constant as long as the signal is different from zero, this velocity becoming zero together with said signal.
Claim 4
Dependent Claim
29 words
A device according to claim 1, wherein the lock correcting means are adapted to induce a correction of lock, the velocity of which is proportional to the correcting signal.
Claim 5
Dependent Claim
29 words
A device according to claim 1, further comprising means for controlling the angular axle position adapted to allow to induce a correction of lock proportional to the correcting signal.
Claim 6
Dependent Claim
19 words
A device according to claim 1, wherein the lock correcting means are adapted to act upon the rear axle.
Claim 7
Dependent Claim
52 words
A device according to claim 1, wherein said lock correction means comprise an actuator supplied with a pressure fluid from a pressure fluid source, through a pilot member adapted to couple said actuator to or to disconnect it from said pressure fluid source, said correcting signal being applied to said pilot member.
Claim 8
Dependent Claim
28 words
A device according to claim 6, wherein said actuator is a double acting actuator and said pilot member is formed by an electro-valve controlled by said correcting signal
Claim 9
Dependent Claim
37 words
A device according to claim 7, comprising means for controlling the angular axle position adapted to allow inducing a correction of lock proportional to the correcting means, said position control means being connected to said pilot member.
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) | 1992-05-22 | 1992-11-21 | 1993-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-22 | 1996-11-21 | 1997-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-22 | 2000-11-21 | 2001-05-23 | $7700.00 | Window Closed / Lapsed |