US4982330A
Expired / Lapsed
US
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Arrangement for detecting input signals of a control device in an internal combustion engine
Assignee: Robert Bosch GmbH
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Filing: 1987-07-15
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Granted: 1991-01-01
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Expires: 2007-07-15
Abstract
Abstract An arrangement for the detection of speed signals of a control device controlling the fuel feed in an internal combustion engine is suggested, in which an (inductive) pulse generator is used in connection with a tested sensing arrangement. The point in time of the detection of the speed signal is freely controllable within a crankshaft and/or camshaft revolution. A minimization of the time interval between the signal detection and the output of the output signals dependent on the speed signals is accordingly achieved. In this way, the phase rotation in the control circuit is minimized and the dynamic behavior is accordingly decisively improved.
Inventors
- 👤 Anton Karle
- 👤 Fridolin Piwonka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:24
CPC Classifications
F; F02; F02D; F02D41/00; F02D41/0097; G; G01; G01P; G01P3/00; G01P3/42; G01P3/44; G01P3/48; G01P3/481; G01P3/489; F02B; F02B1/00; F02B1/02; F02B1/04
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
150 words
An arrangement for detecting speed signals of an internal combustion engine, including actuation devices and a computerized electronic control device for generating control signals for controlling the actuation device, which control signals relate to specific cylinders of the engine, comprising an incremental speed transmitter having a segmented wheel connected to a crankshaft or a camshaft of the engine and a fixed sensor cooperating with segmented wheel to generate a speed signal in the form of a series of pulses; means for applying said speed signal to said electronic control device to generate a speed dependent control signal, said electronic control device including means for selecting a desired point in time of the detection of the speed signal within a revolution of the crankshaft or the camshaft, and means for selecting in dependency on a least one additional operational parameter of the engine a number of pulses in the speed signal.
Claim 2
Dependent Claim
150 words
An arrangement for detecting speed signals of an internal combustion engine, including actuation devices and a computerized electronic control device for generating control signals for controlling the actuation device, which control signals relate to specific cylinders of the engine, comprising an incremental speed transmitter having a segmented wheel connected to a crankshaft or a camshaft of the engine and a fixed sensor cooperating with segmented wheel to generate a speed signal in the form of a series of pulses; means for applying said speed signal to said electronic control device to generate a speed dependent control signal, said electronic control device including means for selecting a desired point in time of the detection of the speed signal within a revolution of the crankshaft or the camshaft, and means for selecting in dependency on a least one additional operational parameter of the engine a number of pulses in the speed signal.
Claim 3
Dependent Claim
48 words
Arrangement according to claim 1 wherein the point in time of the detection of the speed signal is controlled by said electronic control device in such a way that the time interval between the detection of the speed signal and the output of the control signal is minimal.
Claim 4
Dependent Claim
23 words
Arrangement according to claim 2 wherein the computing time is minimized by means of selecting a quantity of increments for determining the speed.
Claim 5
Dependent Claim
18 words
Arrangement according to claim 2 wherein the computing time is minimized by means of omitting characteristic field evaluations.
Claim 6
Dependent Claim
22 words
Arrangement according to claim 1 wherein the point in time of the speed detection depends on the average value of the speed.
Claim 7
Dependent Claim
22 words
Arrangement according to claim 1 wherein the point in time for the detection of the speed signal depends on a load signal.
Claim 8
Dependent Claim
29 words
Arrangement according to claim 1 wherein the following variables are calculated from the speed signal: fuel quantity (Q K ) commencement of injection (SB) and duration of injection (SD).
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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) | 1993-12-31 | 1994-07-02 | 1995-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-12-31 | 1998-07-02 | 1999-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-12-31 | 2002-07-02 | 2003-01-01 | $7700.00 | Window Closed / Lapsed |