US4952152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Real time vehicle simulation system
Assignee: Rockwell Collins Simulation and Training Solutions LLC
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Filing: 1989-06-19
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Granted: 1990-08-28
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Expires: 2009-06-19
Abstract
Abstract To accommodate computer graphics delays, the future position and orientation of a simulated vehicle are predicted in an operating sequence by separate coordinated models that are fed data signals indicating the operator's control actions. The control actions are extrapolated to provide further data signals. A suspension model and a nonlinear chassis model operate sequentially with a road model to provide one reference-state input to a prediction model. Other inputs to the prediction model are from the drive train and steering extrapolation units controlled by driver inputs.
Inventors
- 👤 John A. Briggs
- 👤 Roderic C. Deyo
- 👤 Edward J. Haug
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:22
CPC Classifications
G; G09; G09B; G09B9/00; G09B9/02; G09B9/04; G09B9/05; G06; G06F; G06F30/00; G06F30/10; G06F30/15; G06F30/20; G06F30/23
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
141 words
A system for use by a driver to simulate a vehicle in real time, comprising: control means actuable to provide control signals representative of control actions for the simulated vehicle; vehicle simulation model means coupled to receive said control signals and responsive to provide representative positional signals indicative of the positional state of the simulated vehicle; vehicle prediction model means coupled to receive said control signals and said representative positional signals, said vehicle prediction model means for predicting from said representative positional signals and said control signals to provide predicted positional signals indicative of a future positional state of the simulated vehicle; and reaction display means responsive to said predicted positional signals for manifesting a positional state of said vehicle to said driver, wherein the future predicted positional signals substantially compensate for the inherent response time delay of said display means.
Claim 2
Independent Claim
141 words
A system for use by a driver to simulate a vehicle in real time, comprising: control means actuable to provide control signals representative of control actions for the simulated vehicle; vehicle simulation model means coupled to receive said control signals and responsive to provide representative positional signals indicative of the positional state of the simulated vehicle; vehicle prediction model means coupled to receive said control signals and said representative positional signals, said vehicle prediction model means for predicting from said representative positional signals and said control signals to provide predicted positional signals indicative of a future positional state of the simulated vehicle; and reaction display means responsive to said predicted positional signals for manifesting a positional state of said vehicle to said driver, wherein the future predicted positional signals substantially compensate for the inherent response time delay of said display means.
Claim 3
Dependent Claim
21 words
A system according to claim 1 wherein said vehicle simulation model comprises a suspension model unit and a chassis model unit.
Claim 4
Dependent Claim
16 words
A system according to claim 2 wherein said vehicle suspension model unit is a nonlinear unit.
Claim 5
Dependent Claim
15 words
A system according to claim 2 wherein said chassis model unit is a nonlinear unit.
Claim 6
Dependent Claim
23 words
A system according to claim 2 wherein said vehicle simulation model further includes a road model for simulating operating conditions for said vehicle.
Claim 7
Dependent Claim
23 words
A system according to claim 1 wherein said vehicle simulation model further includes a road model for simulating operating conditions for said vehicle.
Claim 8
Dependent Claim
26 words
A system according to claim 1 wherein said reaction means comprises a display system for manifesting a positional state of said vehicle as a visual scene.
Claim 9
Dependent Claim
16 words
A system according to claim 1 wherein said vehicle simulation model means incorporates nonlinear operating elements.
Claim 10
Dependent Claim
15 words
A system according to claim 1 wherein said reaction means comprises a graphics display apparatus.
Claim 11
Dependent Claim
22 words
A system according to claim 9 wherein said graphics display apparatus comprises a sequential frame display unit to provide a dynamic display.
Claim 12
Dependent Claim
27 words
A system according to claim 10 wherein said vehicle prediction model provides predicted positional signals at least four sequential display frames in advance of said position signals.
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) | 1993-08-27 | 1994-02-26 | 1994-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-27 | 1998-02-26 | 1998-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-27 | 2002-02-26 | 2002-08-28 | $7700.00 | Window Closed / Lapsed |