Siemens Aktiengesellschaft

Continental Automotive Gmbh

Vitesco Technologies Gmbh

Continental Automotive Technologies Gmbh

Vdo Automotive Ag

Valeo Siemens Eautomotive Germany Gmbh

Rainer Knorr

Stephan Bolz

Günter Lugert

Martin Götzenberger

Gregor Probst

Dragan Mikulec

Dirk Reichow

Gangolf Hirtz

Roland Brill

Tobias Huber

Stefan Hackl

Tudor-Ion Gamulescu

Stephanie Preisler

Ludwig Ramsauer

Markus Hess

Michel Findeisen

Anja Lipold

Gangolf Professor Hirtz

A method for controlling an electrically heatable catalytic converter that is supplied, by a starter generator, with an output power belonging to the starter generator, wherein the output power of the starter generator is increased by a PWM method, wherein the eCAT monitors an on-board electrical system supply voltage that arises on account of the increase in the output power, the eCAT is activated if the on-board electrical system supply voltage exceeds an upper threshold value, and the eCAT is deactivated if the on-board electrical system supply voltage falls below a lower threshold value.

Method for operating a heated catalytic converter, and heated-catalytic-converter control system

A vehicle electrical system, particularly for a motor vehicle. The vehicle electrical system has at least two electrical system branches, a disconnecting switch device between the two electrical system branches, wherein the disconnecting switch device has a first controllable switch unit and a series circuit having a second controllable switch unit and an overcurrent protection unit, wherein the first switch unit and the series circuit are electrically connected to each other in parallel between the two electrical system branches, and a control unit which in an idle mode of the vehicle electrical system, is equipped to switch the first switch unit into an open, current-disconnecting switching state and to keep it in the current-disconnecting switching state and to switch the second switch unit into a closed, current-carrying switching state and to keep it in this current-carrying switching state. A motor vehicle with the above-mentioned vehicle electrical system is also disclosed.

Vehicle electrical system, particularly for a motor vehicle

A charging device for inductively charging a drive battery of an electrically-drivable vehicle includes a primary coil, which can be moved in a first direction towards a secondary coil of the vehicle by a pressurized medium. The primary coil is disposed on a holding device which is at least partially elastic. A method for positioning a primary coil for inductively charging a drive battery of an electrically-drivable vehicle is also provided.

Charging device for inductive charging

A positioning system for a vehicle includes a camera, a processor unit and a data storage device. A length relating to a feature of the vehicle is stored in the data storage device. The vehicle is positioned for an inductive charging process in that the vehicle is recorded by a camera and a feature of the vehicle is detected. The position relating to a feature is calculated.

Positioning system and method for positioning a vehicle

A device and a method for balancing charge between individual cells of a double-layer capacitor, in particular in a multi-voltage motor vehicle electrical system. Each individual cell of the double-layer capacitor is associated with a capacitor, the first terminal of which can be connected via a first switch to a first terminal of the associated cell and via a second switch to a second terminal of the associated cell, and the second terminal of which is connected to the second terminals of all of the capacitors.

Device and method for balancing charge between the individual cells of a double-layer capacitor

A device and a method equalize a charge of series-connected individual cells of an energy accumulator with a DC/DC converter. The DC/DC converter draws energy from the energy accumulator or from another power source for charging an intermediate circuit capacitor whose voltage is inverted in a DC/AC converter and the alternating voltage is converted into an intermittent direct current by a rectifier via an AC bus and a coupling element. A switch is placed between the AC bus and each cell thereby enabling the cell to be coupled to the AC bus or disconnected therefrom.

Device and method for charge equalization of series-connected individual cells of an energy accumulator

A device and method for equalizing the charges of series-connected individual cells of an energy storage device with a DC/DC converter, which draws energy from the energy storage device or from another energy source, charges an intermediate circuit capacitor whose voltage is inverted in a DC/AC converter, converts the alternating voltage via AC bus lines and coupling transformers by way of a rectifier into a pulsating direct current, and charges the cell having the lowest cell voltage with the pulsating direct current.

Device and method for equalizing charges of series-connected energy stores

A switching device for bi-directionally equalizing charge between energy accumulators, particularly between capacitive energy accumulators in a motor vehicle electric system, includes: an integrated starter generator; a first connection coupled to the integrated starter generator; a second connection coupled to an energy source; a controllable transfer gate having a first load current-conducting path connected between the first and second connection, and a controllable switching controller having a second load current-conducting path connected between the first and second connection in parallel to the first load current-conducting path. There is also provided a motor vehicle electric system with such a switching device, and the implementation and use of a switching controller in a transfer gate for such a switching device.

Switching device for bi-directionally equalizing charge between energy accumulators and corresponding methods

The invention relates to an operating method for an electrical circuit with an energy store (), made from several storage elements (C-C) and a charge-equalisation circuit (), for charge equalisation between the individual storage elements (C-C) of the energy store (), comprising the following steps: charging the energy store () and charge equalisation between the individual storage elements (C-C) of the energy store () by means of the charge equalisation circuit (). The invention further relates to a corresponding electrical circuit for carrying out said operating method.

Circuit for a motor vehicle electrical distribution system and an associated operating method

Device for supplying power to a two-voltage vehicle electrical system equipped with safety-relevant components with an integrated starter-generator mechanically coupled with an internal combustion engine BKM, a double-layer capacitor DLC, a first and second energy accumulator B, B, with power being able to be supplied to safety-relevant components Vvia three safety switches Xto X, alternately by the starter-generator ISG, the double-layer capacitor DLC, the first or the second energy accumulator B, B

Device for supplying power to a two-voltage vehicle electrical system equipped with safety-relevant components

The invention relates to a method and a device for switching on a power switch (SS) arranged between capacitive elements (CDLC, B) a choke (L) being connected in parallel to the switching contacts of the still open power switch (SS). Said choke enables compensating currents to flow between the elements (CBDLC) to be interconnected and to decay before the power switch (SS) is then closed in a de-energized manner.

Method and device for switching on a power switch arranged between capacitive elements

The invention relates to a method for switching a semi-conductor circuit breaker by means of which the resistance of the breaker gap of the semi-conductor circuit breaker is controlled by a control voltage (Vst), such that the power loss (Pist) from the circuit breaker does not exceed a predetermined setpoint (Psoll). The invention also relates to a device for carrying out said method wherein a transfer gate, which is controlled by a charge pump, is used as a semi-conductor circuit breaker.

Method and device for switching a semi-conductor circuit breaker

A device and a method are provided for equalizing the charge of the capacitors belonging to a double layer capacitor. The device includes an individual transformer associated with each individual capacitor and a flyback transformer or a spool, from which the energy is transferred, via the individual transformers, to the individual transformer, by the respective low charge. Conclusions on the state of the double layer capacitor and the charge-equalizing switch are derived from the measured charging time and discharging time of the flyback transformer.

Device and method for equalising the charge of serially connected capacitors belonging to a double layer capacitor

A starter-generator (ISG) is mechanically connected to an internal combustion engine (BKM), comprises a bi-directional AC/DC converter (), and can be connected to an accumulator (B) by means of a first switch (S), and connected to a double layer capacitor (DLC) by means of a second switch (S). The accumulator (B) is either connected to the double layer capacitor (DLC) by means of a control circuit (PWM), or the accumulator (B) and the double layer capacitor (DLC) are connected to a bidirectional DC/DC converter () and to a second accumulator (B) by means of a third switch (S) and a fourth switch (S).

Motor vehicle electric system

An operating strategy for the components of the drive train is defined as a function of data which characterizes a route to be traveled along. Depending on the operating strategy and the route data, expected energy consumption and a time period for which the energy can be made available are calculated. If the time period is detected as being sufficient, the drive train is controlled in accordance with the operating strategy. If the calculated time period is detected as not being sufficient, an alternative operating strategy is defined and the resulting time period is checked again.

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Wuppertal, Germany

Rainer Knorr