US5333058A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Yaw motion control device
Assignee: Honda Motor Co Ltd
•
Filing: 1990-10-09
•
Granted: 1994-07-26
•
Expires: 2010-10-09
Abstract
Abstract A yaw motion control device for a vehicle includes a steering angle sensor for detecting the steering angle of a steering wheel of the vehicle and a steering angle memory means operatively connected to the steering angle sensor for storing at least a previous value of the steering angle. A reference yaw rate generator generates a reference yaw rate in response to an input from the steering angle memory, and a yaw rate detector detects the yaw rate of the vehicle. Further, a yaw motion corrector controls the yaw motion of the vehicle in response to the outputs from the reference yaw rate generator means and the yaw rate detector. The yaw motion control device set forth above can also be employed with a vehicle speed detector for detecting the speed of the vehicle, and for outputting the vehicle speed to said reference yaw rate generator to provide greater accuracy in controlling the yaw motion of the vehicle.
Inventors
- 👤 Shuji Shiraishi
- 👤 Hironobu Kiryu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:18
CPC Classifications
B; B62; B62D; B62D7/00; B62D7/06; B62D7/14; B62D7/15; B62D7/159; B60; B60K; B60K28/00; B60K28/10; B60K28/16; B62D6/00; B62D6/04; B60W; B60W2520/00; B60W2520/14
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
69 words
A sensor for detecting a dynamic vehicle condition corresponding to yaw motion, comprising: a detecting means for detecting wheel speed of left and right trailing wheels of the vehicle; a calculating means for receiving the wheel speeds from said detecting means and calculating the difference therebetween; and a filter means, receiving the output of said calculating means, for eliminating signal noise caused by vibration of vehicle wheels and suspension.
Claim 2
Dependent Claim
69 words
A sensor for detecting a dynamic vehicle condition corresponding to yaw motion, comprising: a detecting means for detecting wheel speed of left and right trailing wheels of the vehicle; a calculating means for receiving the wheel speeds from said detecting means and calculating the difference therebetween; and a filter means, receiving the output of said calculating means, for eliminating signal noise caused by vibration of vehicle wheels and suspension.
Claim 3
Dependent Claim
16 words
The yaw rate sensor of claim 1, wherein said filter means is a recursive type filter.
Claim 4
Dependent Claim
43 words
The yaw rate sensor of claim 2, further comprising a multiplication means, interposed between said calculating means and said filter means, for outputting an approximate yaw rate value by multiplying said difference by a constant, proportional to the track of said trailing wheels.
Claim 5
Dependent Claim
56 words
The yaw rate sensor of claim 3, wherein said filter means includes a yaw rate memory means, receiving the output of said filter, for storing at least a previous value of said yaw rate output from said filter, and for outputting at least said previous value of said yaw rate to an input of said filter.
Claim 6
Dependent Claim
58 words
The yaw rate sensor of claim 4, further comprising an approximate value memory means, receiving an output from said multiplication means, for storing at least a previous value of the approximate yaw rate from said multiplication means, and for outputting at least said previous value of the approximate yaw rate from said multiplication means to said filter means.
Claim 7
Dependent Claim
105 words
The yaw rate sensor of claim 5, wherein said yaw rate (y n ) output from said filter means is determined according to the following equation: y.sub.n =α.sub.1 y.sub.n-1 +α.sub.2 y.sub.n-2 +α.sub.3 y.sub.n-3 +β.sub.1 y'.sub.n +β.sub.2 y'.sub.n-1 +β.sub.3 y'.sub.n-2 where α 1 . . . α 3 , and β 1 . . . β 3 are predetermined constants, y n-1 . . . y n-3 represent previous values of yaw rate (y n ) from said yaw rate memory means, and y' n . . . y' n-2 represent previous values of an approximate yaw rate value (y') from said approximate value memory means.
Claim 8
Dependent Claim
149 words
A sensor for detecting a dynamic vehicle condition corresponding to yaw motion of a vehicle, comprising: a detecting means for detecting wheel speeds of left and right trailing wheels of the vehicle and producing separate output signals representing a left wheel speed of said left trailing wheel and a right wheel speed of said right trailing wheel; a yaw rate determining means, receiving said output signals from said detecting means representing the wheel speeds, for determining an approximate yaw rate by determining a product of a constant and a difference value, said difference value representing a difference between said left wheel speed and said right wheel speed, said constant having a value representing a distance between centerlines of said left and right trailing wheels; and a filter means, receiving the output of said yaw rate determining means, for eliminating signal noise caused by vibration of vehicle wheels and suspension.
Claim 9
Dependent Claim
149 words
A sensor for detecting a dynamic vehicle condition corresponding to yaw motion of a vehicle, comprising: a detecting means for detecting wheel speeds of left and right trailing wheels of the vehicle and producing separate output signals representing a left wheel speed of said left trailing wheel and a right wheel speed of said right trailing wheel; a yaw rate determining means, receiving said output signals from said detecting means representing the wheel speeds, for determining an approximate yaw rate by determining a product of a constant and a difference value, said difference value representing a difference between said left wheel speed and said right wheel speed, said constant having a value representing a distance between centerlines of said left and right trailing wheels; and a filter means, receiving the output of said yaw rate determining means, for eliminating signal noise caused by vibration of vehicle wheels and suspension.
Claim 10
Dependent Claim
88 words
A sensor for detecting a dynamic vehicle condition corresponding to yaw motion, comprising: a detecting means for detecting wheel speed of left and right trailing wheels of the vehicle; a yaw rate determining means for receiving the wheel speeds from said detecting means, calculating a difference between said wheel speeds, and determining an approximate yaw rate based on said difference; and a filter means, receiving the output of said calculating means representing said approximate yaw rate, for eliminating signal noise caused by vibration of vehicle wheels and suspension.
Claim 11
Dependent Claim
88 words
A sensor for detecting a dynamic vehicle condition corresponding to yaw motion, comprising: a detecting means for detecting wheel speed of left and right trailing wheels of the vehicle; a yaw rate determining means for receiving the wheel speeds from said detecting means, calculating a difference between said wheel speeds, and determining an approximate yaw rate based on said difference; and a filter means, receiving the output of said calculating means representing said approximate yaw rate, for eliminating signal noise caused by vibration of vehicle wheels and suspension.
References Cited (Backward Citations)
US4412594A
Cited
EP0150856A2
Cited
US4705130A
Cited
JPS60191875A
Cited
US4778023A
Cited
US4706771A
Cited
US4679808A
Cited
US4768602A
Cited
US4706979A
Cited
US4797823A
Cited
US4718685A
Cited
US4794539A
Cited
EP0236947A2
Cited
EP1297976A2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-07-25 | 1998-01-24 | 1998-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-07-25 | 2002-01-24 | 2002-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-07-25 | 2006-01-24 | 2006-07-26 | $7700.00 | Window Closed / Lapsed |