Robert Boschgmbh

Audi Ag

Juergen Motz

Quang-Minh Le

Patrick Lueckel

Eberhard Schoch

Marco Meissner

Matthias Horn

Helmut Suelzle

Timo Lothspeich

Martin Schneider

Oliver Dieter Koller

Christian Bohne

Martin Andreas Lohrmann

Martin Holger Koenigsmann

Rolf Falliano

Albert Geiger

Nils Draese

Andre Owerfeldt

Burkhard Iske

Horst Singer

Fabian Jarmolowitz

Turgut Karacay

Sebastian Walenta

Slava Tihovsky

Basti Anil Shenoy

Markus Woerz

Joachim Kizler

Britta Kronenberg

Michael Doster

Patrick Muenzing

Frederic Heidinger

Gita Woite

Marco Beckmann

Felix Stoller

Matthias Zabka

Oliver Keil

Georg Schill

Amalinda Christina Post

Stefan Raeumschuessel

Stefan Harport

Sebastian Kaspar

Marco Blach

Patrick Van Bergen

Christian Schmitz

A method for monitoring an energy supply in a motor vehicle. At least one energy reservoir supplies energy to several preferably safety-relevant loads in a partial vehicle electrical system. At least one measured variable of an energy reservoir and/or of at least one load is detected. At least one wiring harness model is provided which models the partial vehicle electrical system. A parameter estimator is provided which assesses at least one characterizing variable of the wiring harness model using the measured variable.

Method for monitoring a power supply in a motor vehicle with wiring harness model

A method for synchronizing signals of a plurality of participants. A relationship between the signals is given by a physical relation. The signals are each filtered with a first filter in order to determine a shift between the signals. The determined shift is a measure of the phase shift between the signals. The shift is subsequently eliminated by filtering the signals respectively with a second filter.

Method for synchronizing signals

A method for determining an electrical variable of a component of part of a vehicle electrical system including at least one external current and an electrical impedance unit. A measuring unit is configured to generate a plurality of current and voltage values for each of at least two different operating points of the impedance unit. The method includes: providing the current values of the impedance unit at a first operating point and at least one second operating point; providing the voltage values of the impedance unit at a first operating point and at least one second operating point; corresponding current and voltage values being associated with one another; determining the at least one electrical variable of the component based on a parameter estimation method and an electrical model of the part of the vehicle electrical system and at least part of the corresponding current and voltage values.

Method for determining an electrical variable

A method for monitoring a motor vehicle including an automated driving function, including differing modes of operation for bringing the motor vehicle to a standstill, at least one energy store, in particular a battery, supplying at least one consumer which is able to bring the vehicle to a standstill, a respective load profile being assigned to the respective mode of operation, which usually occurs in this mode of operation upon activation of the consumer, at least one characteristic variable of the energy store being predicted as a function of at least one of the load profiles, and the mode of operation associated with the load profile and/or the automated driving function being unblocked, blocked, left or influenced as a function of the predicted characteristic variable of the energy store.

Method for monitoring a motor vehicle including an automated driving function and a device for carrying out the method

A battery terminal which implements an electronically controlled vehicle electrical system coupling-disconnecting functionality including an electronically controlled power distribution, the battery terminal including a number of switching elements, of which at least some are connected to one another in a star point shape, the star-point connection being provided to be connected to a positive pole of a voltage source.

Battery terminal with a star-point connection switch configuration for a vehicle electrical system

A method for monitoring a motor vehicle having an automated driving function. Specific operating modes are each assigned, in each instance, at least one load profile, which is a function of the load circuit needed for the operating mode and normally occurs during this operating mode. At least one characteristic quantity of the energy store is predicted as a function of the load profile. The corresponding operating mode and/or the automated driving function is enabled as a function of the predicted characteristic quantity of the energy store. The predicted characteristic quantity is ascertained as a function of a base load and/or a switching-off potential of the load circuit not needed for the operating mode.

Method for monitoring the supply of power to a motor vehicle having an automated driving function

A method for detecting correct connection of at least one energy reservoir to a vehicle electrical system of a motor vehicle. The method includes: ascertaining a voltage dropping at the energy reservoir, and/or a current flowing through the energy reservoir, and/or a voltage present at a terminal as a representative of the electrical system voltage, when the electrical system voltage exceeds or falls below at least one desired voltage, preferably as a function of at least one magnitude characteristic of the energy reservoir, such as an open-circuit voltage or gassing voltage; comparing the ascertained magnitude, such as the voltage and/or current, with at least one limit value; correct connection of the energy reservoir to the vehicle electrical system, or at least one fault, is inferred as a function of the comparison.

Method for detecting a proper connection of at least one energy store to an on-board electrical system

An electronic battery sensor and a method for determining an internal resistance of a battery, including at least one first detector for detecting measured values, and a battery model for ascertaining the internal resistance. Each measured value includes simultaneous information concerning at least two corresponding measured variables, in particular battery current and battery voltage, and every two successive measured values represents a measuring pair. The battery sensor includes at least one selector which is configured for selecting from a specified number of measuring pairs at least one measuring pair as a selection pair, and for providing the selection pair to the battery model in order to ascertain the internal resistance, the number of measuring pairs being greater than the number of selection pairs.

Electronic battery sensor and method for determining an internal resistance of a battery

In a method for starting a motor vehicle having a first vehicle electrical system, to which a battery of the motor vehicle is assigned, a second vehicle electrical system, to which an electric machine of the motor vehicle is assigned, and a DC/DC converter for connecting the two vehicle electrical systems, for starting, electrical energy from the second vehicle electrical system is converted via the DC/DC converter and transferred into the first vehicle electrical system if an actual value of at least one operating parameter of the battery falls below a setpoint value prior to a starting operation to be carried out.

Method and system for starting a motor vehicle

In a protective circuit for a field-effect transistor which has at least drain-, source- and gate-terminals and is operated as a power switch, overloading of the FET is prevented in case of a power supply voltage of inverted polarity in that the switching voltage is able to be supplied to the gate terminal as a driving voltage via a charge pump. The charge pump is powered via a suitable circuit (e.g., a Graetz bridge rectifier) independently of the polarity of the applied power supply voltage. In case of incorrect polarity of the power supply voltage, the charge pump is driven to output a driving voltage via a suitable circuit (e.g., a diode connected to the base terminal).

Protective circuit for a power field-effect transistor

Growing community of inventors

Steinheim an der Murr, Germany

Juergen Motz