US4499412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regulating device for an electromagnetic control element, especially in an internal combustion engine with auto-ignition
Assignee: Robert Bosch GmbH
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Filing: 1982-09-29
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Granted: 1985-02-12
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Expires: 2002-09-29
Abstract
Abstract A regulating device for an electromagnetic control element, especially for an internal combustion engine with auto-ignition, is proposed in which a non-linear regulator with preferably a PD characteristic is coupled with a pulse regulator, preferably a two-point regulator with PID characteristic. Of special advantage is the interposition of a limiting device, which allows an increase in the D portion of the non-linear regulator, while at the same time suppressing interference. This results in an excellent control behavoir, especially in the face of small control deviations and in a control element or control circuit afflicted with friction and/or (magnetic) hysteresis.
Inventors
- 👤 Johannes Locher
- 👤 Dieter Schaller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:41
CPC Classifications
F; F02; F02D; F02D41/00; F02D41/30; F02D41/38; G; G05; G05B; G05B11/00; G05B11/01; G05B11/36; G05B11/42
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
86 words
A regulating device for an electromagnetic control element for regulating an actual value of said electromagnetic control element corresponding to the position of said control element, especially in an internal combustion engine with auto-ignition, comprising, a first, non-linear regulator producing a first output signal for regulating said actual value to a desired value, and a second pulse regulator receiving said first output signal for producing a second output signal and regulating said second output signal to said first output signal for controlling said electromagnetic control element.
Claim 2
Dependent Claim
86 words
A regulating device for an electromagnetic control element for regulating an actual value of said electromagnetic control element corresponding to the position of said control element, especially in an internal combustion engine with auto-ignition, comprising, a first, non-linear regulator producing a first output signal for regulating said actual value to a desired value, and a second pulse regulator receiving said first output signal for producing a second output signal and regulating said second output signal to said first output signal for controlling said electromagnetic control element.
Claim 3
Dependent Claim
16 words
A regulating device according to claim 1, wherein the first, non-linear regulator is a PD-regulator (12).
Claim 4
Dependent Claim
20 words
A regulating device in accordance with claims 1 or 2, wherein the pulse regulator (28, 31) is a two-point regulator.
Claim 5
Dependent Claim
32 words
A regulating device in accordance with claim 3, wherein the two-point regulator (28, 31) comprises a comparator (28) having a feed-back circuit (31) for determining the transmission behavior of the two-point regulator.
Claim 6
Dependent Claim
27 words
A regulating device according to claim 3, wherein the pulse regulator (28, 31) comprises a limiting means (34) for limiting the switching frequency of the clock regulator.
Claim 7
Dependent Claim
17 words
A regulating device in accordance with claim 5, wherein the limiting means (34) is a frequency filter.
Claim 8
Dependent Claim
18 words
A regulating device according to claim 1, wherein the second regulator (28, 31) exhibits, preferably, a PID behavior.
Claim 9
Dependent Claim
16 words
A regulating device according to claim 4, wherein the feed-back circuit (31) comprises a capacitor (40).
Claim 10
Dependent Claim
20 words
A regulating device according to claim 4, wherein the feed-back circuit (31) comprises a delay means (41, 44 or 42,45).
Claim 11
Dependent Claim
22 words
A regulating device in accordance with claim 9, wherein the delay means comprises at least one RC-member (41, 44 or 42, 45).
Claim 12
Dependent Claim
31 words
A regulating device according to claim 4, wherein the feed-back circuit comprises a resistor (43), whereby the outflow of current from the feed-back circuit (31) of the comparator (28) is assured.
Claim 13
Dependent Claim
38 words
A regulating device according to claim 1, wherein said first regulator comprises means for establishing said non-linearity, whereby said second regulator increasingly regulates said second output signal during small deviations of said actual value and said desired value.
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) | 1988-02-12 | 1988-08-13 | 1989-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-12 | 1992-08-13 | 1993-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-12 | 1996-08-13 | 1997-02-12 | $7700.00 | Window Closed / Lapsed |