Robert Boschgmbh

Bernd Frey

Burkhard Iske

Eberhard Schoch

Nello Medoro

Michael Hackner

Antonio Diaferia

Christos Hondros

Charlotte Summerer

Daniel Zander

Bjoern Noack

Ciro Medolla

John Kuesters

Antonio De Benedictis

The invention relates to a method for operating a fuel injection system () for supplying a combustion engine of a vehicle with fuel, in which method the fuel is conveyed at high pressure with the aid of a high-pressure pump (), fed to a high-pressure accumulator (), and injected into a cylinder of the combustion engine with the aid of at least one injector connected to the high-pressure accumulator (). In order to detect any damage to the drive of the high-pressure pump (), according to the invention The invention further relates to an electronic control unit for carrying out the method.

Method for operating a fuel injection system for supplying a combustion engine with fuel, and electronic control unit

A method for determining the internal resistance of a battery, in particular a lead-acid vehicle battery, and an associated device for performing the method are described, in which differential values are calculated from the measured values for the voltage and the current, and these differential values are processed with the aid of a regulator, such as an integrator or a PID regulator. A signal results at the output of the regulator, which corresponds to the reciprocal value of the internal resistance of the battery. This signal is taken into consideration again in each following computing step. The functional capability may be inferred from its internal resistance.

Method for determining the internal resistance of a battery

Methods for predicting a remaining lifetime of an electric energy storage mechanism, in particular a battery in a motor vehicle and devices for implementing such methods are described in which the remaining lifetime is determined by extrapolation with the help of a mathematical model of the energy storage mechanism. This remaining lifetime is defined as the time until reaching any definable limiting values for the minimum efficiency or minimum storage capacity. The remaining lifetime is indicated and, when the level falls below a preselectable threshold, a warning is displayed. The parameters of the energy storage mechanism are adapted continuously to the real values over the lifetime. The anticipated remaining lifetime is determined by extrapolation from the values for the efficiency and/or storage capacity, based on a specifiable charge state and temperature and the minimum values required for the particular application, these values being calculated at regular intervals on the basis of the model and saved.

Method for predicting the residual service life of an electric energy accumulator

A method for reconstructing an electrical signal in which the signal and a second signal, which is related to the first signal according to a predefined function, are sampled at a predefined sampling rate. The occurrence of aliasing in a downstream digital low-pass filter may be substantially reduced if missing sampling values of the first signal are calculated from the sampling values of the second signal with the aid of the known function.

Method for reconstructing an electrical signal

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Kirchheim, Germany

Bernd Frey