US4785691A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for regulating an internal combustion engine in a motor vehicle
Assignee: Daimler Benz AG
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Filing: 1987-03-10
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Granted: 1988-11-22
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Expires: 2007-03-10
Abstract
Abstract A device for regulating an internal combustion engine in a motor vehicle is provided with an electrical desired-value transmitter adjustable between an idling position and a full-load position, an actuator, and a regulating member coupled mechanically to the actuator. The set position of the desired-value transmitter is transmissible to the actuator via an electrical transmission circuit via which signals can be entered from further regulating variables; and also to the regulating member via a mechanical transmission member of variable length which can be connected to the desired-value transmitter via a connecting lever. So that this regulating device can be installed with the least possible changes in a vehicle without impairing its emergency running properties and the input of further regulating variables, a drag lever is provided that connects the accelerator pedal to the desired-value transmitter. The connecting lever can be dragged along with the drag lever during the adjustment of the drag lever in the direction of full load. Between the full-load position and the particular position of the drag lever, the connecting lever is adjustable independently of the drag lever. A signal output for activating the power transmission between the internal combustion engine and the vehicle drive is connected to the connecting lever.
Inventors
- 👤 Dieter Papenhagen
- 👤 Klaus-Achim Schneider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:26
CPC Classifications
B; B60; B60K; B60K26/00; B60K26/04; B60K28/00; B60K28/10; B60K28/16; B60K31/00; B60K31/02; F; F02; F02D; F02D11/00; F02D11/06; F02D11/10; F02D11/107; F02D41/00; F02D41/20; F02D2011/101; F02D2011/103
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
254 words
A device for regulating the fuel flow to an internal combustion engine in a motor vehicle, with an electrical desired-value transmitter means adjustable between an idling position and a full-load position by an accelerator pedal, with an actuator means for actuating a regulating member, said regulating member being coupled mechanically to said actuator means, electrical control means connected between said desired-value transmitter means and said actuator for receiving set position signals from said transmitter means and sending output control signals to control said actuator means, and a mechanical transmission element of variable length connected between a connecting lever connected to said desired-value transmitter and said regulating member, the improvement comprising: drag lever means for connecting said accelerator pedal to said desired-value transmitter means, and for moving said connecting lever with said drag lever means during adjustment of said drag lever means in the direction of said full-load position; adjusting means for adjusting said connecting lever independently of said drag lever means if said drag lever means is not a full-load position; wherein said connecting lever is further connected to transmission signal output means for controlling the power transmission between said internal combustion engine and a vehicle drive, wherein said transmission signal output means is connected to a gear-change circuit for changing gears of an automatic transmission for controlling said circuit, wherein said mechanical transmission element is a connecting rod which has no play when moved in one direction and which is shortened in a step-increasing manner in an opposite direction by a resistance means.
Claim 2
Independent Claim
254 words
A device for regulating the fuel flow to an internal combustion engine in a motor vehicle, with an electrical desired-value transmitter means adjustable between an idling position and a full-load position by an accelerator pedal, with an actuator means for actuating a regulating member, said regulating member being coupled mechanically to said actuator means, electrical control means connected between said desired-value transmitter means and said actuator for receiving set position signals from said transmitter means and sending output control signals to control said actuator means, and a mechanical transmission element of variable length connected between a connecting lever connected to said desired-value transmitter and said regulating member, the improvement comprising: drag lever means for connecting said accelerator pedal to said desired-value transmitter means, and for moving said connecting lever with said drag lever means during adjustment of said drag lever means in the direction of said full-load position; adjusting means for adjusting said connecting lever independently of said drag lever means if said drag lever means is not a full-load position; wherein said connecting lever is further connected to transmission signal output means for controlling the power transmission between said internal combustion engine and a vehicle drive, wherein said transmission signal output means is connected to a gear-change circuit for changing gears of an automatic transmission for controlling said circuit, wherein said mechanical transmission element is a connecting rod which has no play when moved in one direction and which is shortened in a step-increasing manner in an opposite direction by a resistance means.
Claim 3
Dependent Claim
39 words
The device according to claim 1, wherein said desired-value transmitter includes a regulating shaft to which a regulating lever is fixedly connected with respect to rotation, said connecting lever being moved by said drag lever through said regulating lever.
Claim 4
Dependent Claim
18 words
The device according to claim 2, wherein said desired-value transmitter means is fastened to said internal combustion engine.
Claim 5
Dependent Claim
23 words
The device according to claim 3, wherein said desired-value transmitter means is fastened to a part connected fixedly to said internal combustion engine.
Claim 6
Dependent Claim
14 words
A device according to claim 1, wherein said regulating member is a throttle flap.
Claim 7
Dependent Claim
18 words
A device according to claim 1, wherein said regulating member is a control rod of an injection pump.
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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) | 1991-11-22 | 1992-05-23 | 1992-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-11-22 | 1996-05-23 | 1996-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-11-22 | 2000-05-23 | 2000-11-22 | $7700.00 | Window Closed / Lapsed |