US3886915A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Passive adaptive engine control system for improved vehicle driveability
Assignee: Bendix Corp
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Filing: 1973-09-28
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Granted: 1975-06-03
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Expires: 1993-09-28
Abstract
Abstract A passive adaptive engine control system for a vehicle includes a control loop for providing a transient control to the engine which improves vehicle driveability under a wide range of driving conditions. A model provides an output in accordance with a desired vehicle response and the transient control is provided so that the actual vehicle response is adapted to that of the model.
Inventors
- 👤 Lael B Taplin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:33
CPC Classifications
B; B60; B60K; B60K31/00; B60K31/02; B60K31/04; B60K31/042; B60W; B60W50/00; B60W2050/0001; B60W2050/0019; B60W2050/0022; B60W2050/0028; B60W2050/0031; B60W2050/0043; B60W2050/0052; B60W2520/00; B60W2520/10; B60W2520/105; B60W2710/00; B60W2710/06; B60W2710/0616
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
139 words
In a vehicle engine of the type whereby the engine is operator controlled through an accelerator, the improvement comrpising: means connected to the accelerator and responsive to the operator controlled displacement thereof for providing a signal corresponding to a desired response of the vehicle, including a transducer connected to the accelerator for providing a signal corresponding to the displacement thereof and a model connected to the transducer and responsive to the signal therefrom for providing the desired vehicle response signal; means for providing a signal corresponding to the actual response of the vehicle; means for combining the desired and actual response signals and for providing a signal corresponding to the difference therebetween; and means connected to the difference signal means, the accelerator and the engine for controlling the engine in response to the difference signal and the accelerator displacement.
Claim 2
Dependent Claim
139 words
In a vehicle engine of the type whereby the engine is operator controlled through an accelerator, the improvement comrpising: means connected to the accelerator and responsive to the operator controlled displacement thereof for providing a signal corresponding to a desired response of the vehicle, including a transducer connected to the accelerator for providing a signal corresponding to the displacement thereof and a model connected to the transducer and responsive to the signal therefrom for providing the desired vehicle response signal; means for providing a signal corresponding to the actual response of the vehicle; means for combining the desired and actual response signals and for providing a signal corresponding to the difference therebetween; and means connected to the difference signal means, the accelerator and the engine for controlling the engine in response to the difference signal and the accelerator displacement.
Claim 3
Dependent Claim
139 words
In a vehicle engine of the type whereby the engine is operator controlled through an accelerator, the improvement comrpising: means connected to the accelerator and responsive to the operator controlled displacement thereof for providing a signal corresponding to a desired response of the vehicle, including a transducer connected to the accelerator for providing a signal corresponding to the displacement thereof and a model connected to the transducer and responsive to the signal therefrom for providing the desired vehicle response signal; means for providing a signal corresponding to the actual response of the vehicle; means for combining the desired and actual response signals and for providing a signal corresponding to the difference therebetween; and means connected to the difference signal means, the accelerator and the engine for controlling the engine in response to the difference signal and the accelerator displacement.
Claim 4
Dependent Claim
139 words
In a vehicle engine of the type whereby the engine is operator controlled through an accelerator, the improvement comrpising: means connected to the accelerator and responsive to the operator controlled displacement thereof for providing a signal corresponding to a desired response of the vehicle, including a transducer connected to the accelerator for providing a signal corresponding to the displacement thereof and a model connected to the transducer and responsive to the signal therefrom for providing the desired vehicle response signal; means for providing a signal corresponding to the actual response of the vehicle; means for combining the desired and actual response signals and for providing a signal corresponding to the difference therebetween; and means connected to the difference signal means, the accelerator and the engine for controlling the engine in response to the difference signal and the accelerator displacement.
Claim 5
Dependent Claim
89 words
The improvement as described by claim 1, wherein the means connected to the difference signal means, the accelerator and the engine for controlling the engine in response to the difference signal and the accelerator displacement includes: a servo system connected to the difference signal means and providing a servo motor shaft displacement in response to the difference signal; means for combining the servo motor shaft displacement and the accelerator displacement; and throttle valve means connected to the combining means for controlling the engine in response to the combined displacement.
Claim 6
Dependent Claim
106 words
The improvement as described by claim 1, wherein the means connected to the difference signal means, the accelerator and the engine for controlling the engine in response to the difference signal and the accelerator displacement signal includes: a servo system connected to the difference signal means and providing a servo motor shaft displacement in response to the difference signal; a first throttle valve connected to the servo system and to the engine for controlling the engine in response to the servo motor displacement; and a second throttle valve connected to the accelerator and to the engine for controlling the engine in response to the accelerator displacement.
Claim 7
Dependent Claim
95 words
The improvement as described by claim 1, wherein the means connected to the difference signal means, the accelerator and the engine for controlling the engine in response to the difference signal and the accelerator displacement includes: a transducer connected to the accelerator for providing a signal corresponding to the displacement thereof; a servo system connected to the difference signal means and to the transducer for providing a servo motor shaft displacement in response to the signals therefrom; and throttle valve means connected to the servo system for controlling the engine in response to said displacement.
Claim 8
Dependent Claim
80 words
The improvement as described by claim 1, wherein the means connected to the difference signal means, the accelerator and the engine for controlling the engine in response to the difference signal and the accelerator displacement includes: fuel injection means connected to the difference signal means and controlled by the signal therefrom for injecting fuel into the engine; and throttle valve means connected to the accelerator and responsive to the acCelerator displacement for controlling the flow of air to the engine.
Claim 9
Dependent Claim
63 words
The improvement as described by claim 1, wherein: the means for providing a signal corresponding to the actual response of the vehicle includes; means for sensing the speed of the vehicle and for providing a corresponding signal; means for sensing the acceleration of the vehicle and for providing a corresponding signal; and means for combining said signals for providing the actual response signal.
Claim 10
Dependent Claim
81 words
The improvement as described by claim 1, including: means for adjusting the gain of the difference signal; means for filtering the gain adjusted signal to insure overall system stability; and the means connected to the difference signal means, the accelerator and the engine for controlling the engine in response to the difference signal and the accelerator displacement being connected to the filter, the accelerator and the engine for controlling the engine in response to the filtered signal and the accelerator displacement.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-02 | 1978-12-02 | 1979-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-02 | 1982-12-02 | 1983-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-02 | 1986-12-02 | 1987-06-03 | $7700.00 | Window Closed / Lapsed |