Vitesco Technologies Gmbh

Alcatel

Daimler Chrysler Ag

Conti Temic Microelectronic Gmbh

David + Baader - Dbk

Alcatel Seg Ag

Hans-Peter Feustel

Franz Pfeilschifter

Martin Brüll

Matthias Töns

Martin Ehrmann

Franz Bohlender

Reinhard Orthmann

Klaus Beetz

Edmund Schirmer

Klaus Mühlbauer

Thomas Röhrl

Martin Spornraft

Friedrich Loskarn

Reinhard R&uuml;ckert

The disclosure relates to a power circuit for power supply in an electrically driven vehicle. The power circuit includes a direct voltage connection, an electrical traction drive, and a DC/AC converter. The converter includes an alternating voltage side connected to the traction drive. A DC/DC converter of the power circuit includes two converter sides. The first converter side is connected to a direct voltage side of the DC/AC converter via a coupling point. The direct voltage connection is likewise connected to the coupling point. The disclosure further relates to a stationary energy supply system designed to be complementary and to connect to the power circuit.

Power circuit for power supply in an electrically driven vehicle and stationary energy supply system

A vehicle electrical system is equipped with an inverter, an electrical energy store, an electrical machine and an AC transmission terminal. The inverter has a first and a second side and is configured to transmit power between these sides. The first side of the inverter is connected to the energy store via input current terminals of the inverter. The second side of the inverter is connected to the electrical machine via phase current terminals of the inverter. The inverter has at least two H-bridges. Each of the H-bridges bypasses the two sides of the inverter. The AC transmission terminal is connected to the second side of the inverter.

Vehicle electrical system with inverter, energy store, electrical machine and ac transmission terminal

The vehicle electrical system described includes an inverter, an electrical energy store, an electrical machine and a DC transmission terminal. The inverter is connected to the energy store via input current terminals. At least two phase current terminals of the inverter are connected to the electrical machine. The inverter has at least two H-bridges. The DC transmission terminal has a positive rail connected to at least one of the phase current terminals.

Vehicle electrical system with inverter, energy store, electrical machine and DC transmission terminal

A brushless, synchronous direct current motor is operated by supplying a direct current voltage as an input voltage for commutating the motor phase windings. The speed of the synchronous motor is modified or varied in two speed ranges. In the first speed range, a linear change of the input voltage is carried out up to a speed threshold value. In the second speed range with higher speeds than in the first speed range, a vector modification of the input voltage is carried out, for example for controlling the speed of a fan motor.

Method for operating a brushless direct current motor

A method and circuit for controlling a controlled variable by a closed-loop control circuit comprising at least two controllers and a control device with a reference stage and a controlled system generating the controlled variable. The reference stage is supplied with a reference variable, which determines the set point of the controlled variable, the maximum value of which is predefined as a function of the control limits of the control device formed as the sum of the control limits of the controllers of the control device. A first controller of the control device is provided with a control deviation, which is formed as the difference between the reference variable and the actual value of the controlled variable. The other controllers of the control device are provided with a control deviation, which is formed, respectively, as the difference between the control deviation of the respective preceding controller and the actual value of the controlled variable of the additional controller.

Control circuit for regulating at least two controlled variables

The invention relates to a power module with a circuit arrangement provided with active semiconductor components and passive components and with a circuit substrate, whereby at least a portion of the active semiconductor components are soldered onto a DCB substrate and at least a portion of the passive components are printed in thick film technology on at least one ceramic substrate. The upper side of the DCB substrate is structured to form track conductors and connecting surfaces for receiving the active semiconductor components and passive components of the circuit arrangement. On the ceramic substrate, for each passive component, a first print layer is printed in thick film technology and at least one contact surface as additional print layer laterally adjoining the first print layer. The ceramic substrates for the passive components in thick film technology are connected via the at least one contact surface with the corresponding connecting surface(s) of the DCB substrate by means of a soldered connection.

Power module with a circuit arrangement comprising active semiconductor components and passive components, and method for producing same

An electric heating system comprising at least two electric heating resistors, the heating power of which being adjusted by a control device comprising a plurality of controllers each one of which has one of the electric heating resistor associated with it, wherein the control range of the control means is distributed over the controllers and wherein a different control range is associated to each controller.

Growing community of inventors

Roth, Germany

Hans-Peter Feustel