Daimler Chrysler Ag

Roland Bluemel

Hermann Bosch

Anton Heni

Fritz Schmidt

Christof Gross

Markus Krauss

Wolfgang Dinser

Armin Kloepfer

A method for regulating a generator in a motor vehicle, in which the generator feeds a vehicle power supply system having loads and having at least one battery, with a regulator regulating the generator output voltage at the value of a nominal value voltage. In a recuperation readiness mode, the nominal value voltage is preset as a function of the driving state variables such that, during braking or when the vehicle is overrunning, electrical power is fed into the vehicle power supply system. Switching takes place between the recuperation readiness mode and a recovery mode as a function of predetermined switching conditions, with the nominal value voltage in the recovery mode being preset such that the battery is regenerated.

Method for regulating the generator voltage in a motor vehicle

An electric drive arrangement for internal combustion engines in motor vehicles having an electric starter coupled to the internal combustion engine, and an electric generator drive connected with the internal combustion engine. The arrangement is connected to a supply battery via a semiconductor circuit arrangement, which determines the operation of the generator either in a generator mode or a motor mode. An electronic control device is used for controlling the starting operation of the internal combustion engine as a function of the signal of at least one temperature sensor with the aid of the generator operated as a motor, either alone or together with the starter. This arrangement makes it possible to achieve quicker and more comfortable starting operations in combination with lower pollutant emissions. The starting operations can be carried out reliably even at very low temperatures.

Electric drive arrangement for internal combustion engines in motor vehicles

In an energy supply circuit for a motor vehicle on-board electrical system with two voltage supply branches at different voltage levels, the first voltage supply branch can be fed by way of an electric direct voltage converter by the second voltage supply branch and the second voltage supply branch can be fed by a generator. A multi-level controller W with three voltage levels is provided whose first in/output is connected with the second voltage supply branch, whose second in/output is connected with the first voltage supply branch and whose third in/output is connected with the energy accumulator B assigned to the first voltage supply branch.

Energy supply circuit for a motor vehicle on-board electrical system having two voltage supply branches

An energy supply device for an electromagnetic valve control of an internal combustion engine, in particular of a motor vehicle. The supply device has a generator which can be mechanically coupled to the internal combustion engine. A rectifier circuit which is assigned to the generator, has a first diode arrangement, as an anode part, and a second diode arrangement, as a cathode part, and to which a supply output is connected, and an electrical energy store. The electrical energy store is connected to the output of the third diode arrangement, and the energy supply device has a controllable DC/DC converter, which is connected on the one hand to the third diode arrangement and on the other hand to the supply output. As an alternative to the third diode arrangement, the DC/DC converter may be coupled in parallel with a voltage regulator and a diode to the first diode arrangement.

Energy supply device for an electromagnetic valve control of an internal combustion engine

A circuit is provided for an alternator of a motor vehicle with the winding of the alternator consisting of two half-windings, with rectification of the voltages and currents at the outputs of the two half-windings taking place, with the outputs of one half-winding being connected with the inputs of a first rectifier, and with the outputs of the other half-winding being connected with the inputs of another rectifier, and with each output of one half-winding being connectable across the gaps of two switchable elements with two outputs of the other half-winding in each case such that when the gaps are bridged, the two half-windings are connected electrically in series. In a method for triggering the switchable elements, the individual thyristors are triggered in succession and/or only individual transistors are triggered, with this preferably taking place when a certain motor rpm is undershot. Diodes c an also be used instead of individual thyristors.

Growing community of inventors

Plieningen, Germany

Roland Bluemel