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1. WO1992000504 - DEVICE FOR RELIABLY DETECTING FAULTS AND SUPPRESSING NOISE PEAKS IN POTENTIOMETER ASSESSMENT

Publication Number WO/1992/000504
Publication Date 09.01.1992
International Application No. PCT/DE1991/000473
International Filing Date 05.06.1991
IPC
F02D 11/10 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
11Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
06characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
10of the electric type
G01D 5/165 2006.1
GPHYSICS
01MEASURING; TESTING
DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED BY A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; TRANSFERRING OR TRANSDUCING ARRANGEMENTS NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
5Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
12using electric or magnetic means
14influencing the magnitude of a current or voltage
16by varying resistance
165by relative movement of a point of contact and a resistive track
G01R 27/16 2006.1
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
27Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
02Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
16Measuring impedance of element or network through which a current is passing from another source, e.g. cable, power line
G01R 31/02 2006.1
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
31Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
02Testing of electric apparatus, lines, or components for short-circuits, discontinuities, leakage, or incorrect line connection
CPC
F02D 11/107
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
11Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
06characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
10of the electric type
107Safety-related aspects
G01D 5/165
GPHYSICS
01MEASURING; TESTING
DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
5Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
12using electric or magnetic means
14influencing the magnitude of a current or voltage
16by varying resistance
165by relative movement of a point of contact ; or actuation; and a resistive track
G01R 27/16
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
27Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
02Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
16Measuring impedance of element or network through which a current is passing from another source, e.g. cable, power line
G01R 31/50
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
31Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
50Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
G01R 31/52
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
31Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
50Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
52Testing for short-circuits, leakage current or ground faults
G01R 31/54
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
31Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
50Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
54Testing for continuity
Applicants
  • ROBERT BOSCH GMBH [DE]/[DE] (AllExceptUS)
  • DENZ, Helmut [DE]/[DE] (UsOnly)
Inventors
  • DENZ, Helmut
Priority Data
P 40 20 106.623.06.1990DE
Publication Language German (de)
Filing Language German (DE)
Designated States
Title
(DE) EINRICHTUNG ZUR SICHEREN AUSFALLERKENNUNG UND RAUSCHSPITZENUNTERDRÜCKUNG BEI EINER POTENTIOMETERAUSWERTUNG
(EN) DEVICE FOR RELIABLY DETECTING FAULTS AND SUPPRESSING NOISE PEAKS IN POTENTIOMETER ASSESSMENT
(FR) DISPOSITIF POUR LA DETECTION FIABLE DE PANNES ET L'ELIMINATION DES CRETES DE BRUITS PARASITES PENDANT UNE ANALYSE POTENTIOMETRIQUE
Abstract
(DE) Es wird eine Einrichtung zur sicheren ausfallerkennung und Rauschspitzenunterdrückung bei einer Potentiometerauswertung angegeben, bei dem der Signalausgang des Potentiometers über einen pull-up-Widerstand (19) an eine gegenüber der Referenzspannung erhöhte Spannung angeschlossen wird, so daß bei einer Unterbrechung der Signalleitung am nachfolgenden Analog-Digital-Wandler (13) ein gegenüber dem ungestörten Betrieb erhöhtes Potential anliegt, das zur Fehlererkennung verwendet wird. Durch eine geeignete Dimensionierung der Schaltung wird der Schleiferstrom des Potentiometers minimal gehalten und es werden Auswirkungen von Rauschspitzen bzw. Mikrounterbrechungen verringert.
(EN) The invention relates to a device for reliably detecting faults and suppressing noise peaks in potentiometer assessment in which the signal output of the potentiometer is connected to a voltage higher than the reference voltage via a pull-up resistor (19) so that when the signal line is interrupted there is, at the next analog-digital converter (13), a higher potential compared with that of smooth operation which is used to detect faults. If the circuit is suitably designed, the wiper current of the potentiometer is kept to a minimum and the effects of noise peaks or micro-interruptions are reduced.
(FR) Dispositif pour la détection fiable de pannes et l'élimination des crêtes de bruit parasites lors d'une analyse potentiométrique, dans lequel la sortie de signal du potentiomètre est connectée par l'intermédiaire d'une résistance pull-up (19) à une tension plus élevée par rapport à la tension de référence, de sorte que, lors d'une interruption de la ligne de signal, il est appliqué au convertisseur analogique-numérique suivant (13) un potentiel plus élevé par rapport à celui correspondant à un fonctionnement non perturbé et qui est utilisé pour la détection d'erreurs. Grâce à un dimensionnement approprié du circuit, le courant du frotteur du potentiomètre est maintenu à un seuil minimum et les effets de crêtes de bruits ou de micro-interruptions sont réduits.
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