Method and device for determining a characteristic quantity for detecting the onboard supply system stability

Method and device for determining a characteristic quantity for detecting the onboard supply system stability

The invention relates to a device and to a method for determining a characteristic quantity (Umin) for detecting the onboard supply system stability, comprising the following steps: detecting when the engine starts, measuring the battery voltage (Umin) during the starting process of the engine, calc...

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1. Verfasser: MOTZ, JUERGEN
Format: Patent
Sprache:eng ; fre ; ger
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MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PERFORMING OPERATIONS
PHYSICS
TESTING
TRANSPORTING
VEHICLES IN GENERAL
VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR
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creator MOTZ, JUERGEN
description The invention relates to a device and to a method for determining a characteristic quantity (Umin) for detecting the onboard supply system stability, comprising the following steps: detecting when the engine starts, measuring the battery voltage (Umin) during the starting process of the engine, calculating a corresponding starting current (lmax) from the measured battery voltage (UminStart) using a battery model (12), determining at least one characteristic quantity (Umin) in the form of a prediction of an onboard supply system voltage to be expected using the battery model (12) and the calculated starting current (lmax).
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subjects MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PERFORMING OPERATIONS
PHYSICS
TESTING
TRANSPORTING
VEHICLES IN GENERAL
VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR
title Method and device for determining a characteristic quantity for detecting the onboard supply system stability
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