US5134979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Load adjustment device
Assignee: Mannesmann VDO AG
•
Filing: 1990-09-10
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Granted: 1992-08-04
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Expires: 2010-09-10
Abstract
Abstract A load adjustment device having a control element (11) which can act on a setting member (12), determines the output of an internal combustion engine, and cooperates with a driver (3) which is coupled to an accelerator pedal (1). In addition, the driver can be moved by an electric setting drive (15), having a desired-value detection element (7) associated with the driver and an actual-value detection element (13) which cooperates with said desired-value detection element and acts on the electric setting drive. The electric setting drive is adapted for control by an electronic control device (14) as a function of the values detected. In order to assure a movement of the control element which is free of reaction on the driver upon control of the electric setting drive, a switch clutch (10) is provided in accordance with the invention between driver and control element.
Inventors
- 👤 Manfred Pfalzgraf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:05
CPC Classifications
F; F02; F02D; F02D11/00; F02D11/06; F02D11/10; F02D2011/101; F02D2011/103
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
139 words
A load adjustment device comprising: an accelerator pedal, a setting member which determines the output of an internal combustion engine, and a control element for acting on the setting member; an electric setting drive, and a driver which is coupled to the accelerator pedal, the control element being moveable by means of the electric setting drive; a desired-value detection element for detecting a position of the driver, and an actual-value detection element for detecting a position of the control element; an electronic control device controlling the electric setting drive as a function of values detected by the desired and the actual value detection elements; a switch clutch arranged between the driver and the control element for coupling the control element to the driver; and a free-travel element disposed at and cooperating with the driver side of the switch clutch.
Claim 2
Dependent Claim
139 words
A load adjustment device comprising: an accelerator pedal, a setting member which determines the output of an internal combustion engine, and a control element for acting on the setting member; an electric setting drive, and a driver which is coupled to the accelerator pedal, the control element being moveable by means of the electric setting drive; a desired-value detection element for detecting a position of the driver, and an actual-value detection element for detecting a position of the control element; an electronic control device controlling the electric setting drive as a function of values detected by the desired and the actual value detection elements; a switch clutch arranged between the driver and the control element for coupling the control element to the driver; and a free-travel element disposed at and cooperating with the driver side of the switch clutch.
Claim 3
Dependent Claim
60 words
A load adjustment device according to claim 1, further comprising a second switch clutch which is closed upon deactivation and operates in conjunction with the setting drive; and wherein the first-mentioned switch clutch is formed as an electromagnetic switch clutch which is opened upon an activating of the electric setting drive or upon a closure of the second switch clutch.
Claim 4
Dependent Claim
19 words
A load adjustment device according to claim 1, wherein the switch clutch is developed as a codable switch clutch.
Claim 5
Dependent Claim
37 words
A load adjustment device according to claim 1, further comprising a second switch clutch formed as an electromagnetic switch clutch; and wherein the electric setting drive cooperates directly via the second switch clutch with the control element.
Claim 6
Dependent Claim
195 words
A load adjustment device comprising: an accelerator pedal, a setting member which determines the output of an internal combustion engine, and a control element for acting on the setting member; an electric setting drive, and a driver which is coupled to the accelerator pedal, the control element being moveable by means of the electric setting drive; a desired-value detection element for detecting a position of the driver, and an actual-value detection element for detecting a position of the control element; an electronic control device controlling the electric setting drive as a function of values detected by the desired and the actual value detection elements; a switch clutch arranged between the driver and the control element for coupling the control element to the driver; and a free-travel element disposed at the driver, a plurality of restoring springs, and an idle emergency spring; and wherein the free-travel element cooperates with the driver side of the switch clutch; the driver and the control element are urged in idle direction by means of the restoring springs; and the control element is urged into an idle emergency operation position by the idle emergency operation spring which acts in full-load direction.
Claim 7
Dependent Claim
195 words
A load adjustment device comprising: an accelerator pedal, a setting member which determines the output of an internal combustion engine, and a control element for acting on the setting member; an electric setting drive, and a driver which is coupled to the accelerator pedal, the control element being moveable by means of the electric setting drive; a desired-value detection element for detecting a position of the driver, and an actual-value detection element for detecting a position of the control element; an electronic control device controlling the electric setting drive as a function of values detected by the desired and the actual value detection elements; a switch clutch arranged between the driver and the control element for coupling the control element to the driver; and a free-travel element disposed at the driver, a plurality of restoring springs, and an idle emergency spring; and wherein the free-travel element cooperates with the driver side of the switch clutch; the driver and the control element are urged in idle direction by means of the restoring springs; and the control element is urged into an idle emergency operation position by the idle emergency operation spring which acts in full-load direction.
Claim 8
Dependent Claim
154 words
A load adjustment device comprising: an accelerator pedal, a setting member which determines the output of an internal combustion engine, and a control element for acting on the setting member; an electric setting drive, and a driver which is coupled to the accelerator pedal, the control element being moveable by means of the electric setting drive; a desired-value detection element for detecting a position of the driver, and an actual-value detection element for detecting a position of the control element; an electronic control device controlling the electric setting drive as a function of values detected by the desired and the actual value detection elements; a switch clutch arranged between the driver and the control element for coupling the control element to the driver; and at least one safety contact which is operative with either the driver or the control element for monitoring an operating position of the driver or of the control element, respectively.
Claim 9
Dependent Claim
154 words
A load adjustment device comprising: an accelerator pedal, a setting member which determines the output of an internal combustion engine, and a control element for acting on the setting member; an electric setting drive, and a driver which is coupled to the accelerator pedal, the control element being moveable by means of the electric setting drive; a desired-value detection element for detecting a position of the driver, and an actual-value detection element for detecting a position of the control element; an electronic control device controlling the electric setting drive as a function of values detected by the desired and the actual value detection elements; a switch clutch arranged between the driver and the control element for coupling the control element to the driver; and at least one safety contact which is operative with either the driver or the control element for monitoring an operating position of the driver or of the control element, respectively.
Claim 10
Dependent Claim
172 words
A load adjustment device comprising: an accelerator pedal, a setting member which determines the output of an internal combustion engine, and a control element for acting on the setting member; an electric setting drive, and a driver which is coupled to the accelerator pedal, the control element being moveable by means of the electric setting drive; a desired-value detection element for detecting a position of the driver, and an actual-value detection element for detecting a position of the control element; an electronic control device controlling the electric setting drive as a function of values detected by the desired and the actual value detection elements; a switch clutch arranged between the driver and the control element for coupling the control element to the driver; and a first safety contact and a second safety contact; and wherein the first safety contact is a driver-side safety contact which monitors the idle position of the driver; and the second safety contact is a control-element-side safety contact which monitors the idle emergency position of the control element.
Claim 11
Dependent Claim
172 words
A load adjustment device comprising: an accelerator pedal, a setting member which determines the output of an internal combustion engine, and a control element for acting on the setting member; an electric setting drive, and a driver which is coupled to the accelerator pedal, the control element being moveable by means of the electric setting drive; a desired-value detection element for detecting a position of the driver, and an actual-value detection element for detecting a position of the control element; an electronic control device controlling the electric setting drive as a function of values detected by the desired and the actual value detection elements; a switch clutch arranged between the driver and the control element for coupling the control element to the driver; and a first safety contact and a second safety contact; and wherein the first safety contact is a driver-side safety contact which monitors the idle position of the driver; and the second safety contact is a control-element-side safety contact which monitors the idle emergency position of the control element.
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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) | 1995-08-04 | 1996-02-03 | 1996-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-08-04 | 2000-02-03 | 2000-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-08-04 | 2004-02-03 | 2004-08-04 | $7700.00 | Window Closed / Lapsed |