Robert Boschgmbh

Andreas Walter

Stefan Wickert

Michael Hackner

Johannes Zeidler

Patrick Weiss

Heiko Lenhardt

Philipp Hagemann

Peter Eitel

Xin Wang

Guenter Siegel

Markus Waibler

Testing of a vehicle battery in a state removed from a vehicle, using a testing device that is fashioned for testing the vehicle battery installed in the vehicle using an on-board diagnostic interface of the vehicle. The device has: an interface to which a plug of the testing device can be connected, the plug being for connection to the on-board diagnostic interface of the vehicle; an electrical connecting device via which at least one electrical vehicle battery terminal of the vehicle battery is connectable to the device; and an adapter device by which signals receivable from the electrical vehicle battery terminal of the vehicle battery via the connecting device are conductible to the interface in such a way that the signals at the interface for the testing device are capable of being tested via the plug corresponding to a configuration of the on-board diagnostic interface of the vehicle.

Device and method for interfacing a vehicle-external testing device to a battery removed from a vehicle

A method for monitoring a state of a rechargeable battery based on a state value which characterizes the respective state of the rechargeable battery, characterized in that, during at least one time interval, an electrical energy which is output by the rechargeable battery and an electrical energy which is received by the rechargeable battery are detected, and in that an instantaneous state of charge or an instantaneous no-load voltage of the rechargeable battery is detected, wherein the detected electrical energy which is output by the rechargeable battery, the detected electrical energy which is received by the rechargeable battery and the respectively detected instantaneous state of charge or the respectively detected instantaneous no-load voltage of the rechargeable battery are evaluated in order to generate the state value.

Method for monitoring a state of a rechargeable battery based on a state value which characterizes the respective state of the rechargeable battery

A method for specifying a malfunction of an exhaust gas recirculation system of an internal combustion engine of a motor vehicle, including: setting a first operating point of the engine and a first operating state of the fresh air/exhaust gas system as vehicle conditioning in a first measurement setting; measuring volumetric efficiencies of the engine for the first measurement setting and for at least one additional measurement setting, and comparing the measured volumetric efficiencies with an engine characteristics map stored in a memory unit for volumetric efficiency values of the engine, and ascertaining whether a malfunction is present during the exhaust gas recirculation process based on the comparison; and specifying the malfunction of the exhaust gas recirculation system while taking into account the measuring results for the first measurement setting and for the at least one additional measurement setting and the stored engine characteristics map for volumetric efficiency values.

Method for specifying a malfunction of an exhaust gas recirculation system of an internal combustion engine of a motor vehicle and corresponding diagnostic device

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Vaihingen, Germany

Andreas Walter