Robert Boschgmbh

Oliver Luz

Wolfgang E Mueller

Richard Schoettle

Holger Fink

Bernd Dittmer

Reinhard Rieger

Marcus Kneifel

David Frey

Wolfgang Mueller

Wolfgang Müller

Richard Schöttle

In a vehicle electrical system powered by a battery for supplying a plurality of loads, an integrated module is provided between the positive terminal of the battery and the loads, and the integrated module includes an arrangement for detecting a state of charge of the battery, a control unit for power management of the vehicle electrical system, and at least one supply output for supplying power to the loads.

Vehicle electrical system including battery state of charge detection on the positive terminal of the battery

A device and a method for the control of a generator, for example a claw-pole generator, with which the rectifier bridge connected to the generator can be temporarily short-circuited, as a result of which power is temporarily stored in the stator inductors, which results in higher phase voltages. Suitable selection of the control frequency for a transistor, which makes the short-circuiting of the diode bridge possible, allows an output voltage of the generator to be set to the desired voltage level which is clearly higher than the conventional vehicle electrical system voltage. The diode bridge itself can be replaced by controllable switching elements (transistors) and a voltage adjustment is implemented using suitable controls.

Device and method for controlling a generator

A method for optimized power and efficiency regulation of rotary current generators with an associated converter bridge, in particular synchronous machines, is described in which at least three regulation ranges are defined, within which ranges the regulation of the generator takes place by different criteria. The definition of the regulation ranges is done in particular as a function of rpm and as a function of the desired set-point power. The regulation extends both to the exciter current and to the stator current and is done by means of various regulators that exchange information with one another.

Method for the optimized control in terms of output and efficiency of synchronous machines

A method for regulating a generator is described in which the rectified output voltage furnished by the generator is converted, under certain preconditions, with the aid of a direct voltage converter. The generator can be operated either in a free operating mode or a regulated operating mode. If the generator voltage output in the particular operating state is not equivalent to the on-board electrical voltage, then the generator voltage is either raised or lowered with the aid of the voltage converter. The selection of the generator operating mode is done as a function of rpm or voltage, in such a way that the available generator power or energy conversion efficiency is as high as possible.

Method for regulating a generator

Circuit configuration for degradation of the stored magnetic energy of a field winding of a generator, where a battery voltage is applied to the field winding, having a power switch that is in operative connection with the field winding and is controllable by timed pulses from a clock control and which controls the storage and degradation of energy of the field winding. A zener diode is arranged between the field winding and a control input of a power switch for control of the energy degradation of the field winding, in particular of the power switch.

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Lichtenwald, Germany

Oliver Luz