Siemens Aktiengesellschaft

Continental Automotive Gmbh

Audi Ag

Avl Software and Functions Gmbh

Bastian Arndt

Gunther Wolfarth

Ralf Förster

Johann Falter

Tobias Enzinger

Franz Laberer

Marco Well

Ralf Foerster

Hartwig Reindl

Konstantin Thiveos

Hao Feng

Thomas Haschberger

Peter Olbrich

The invention relates to a device for rejecting interference signals in bipolar voltage sources, in particular in high-voltage sources in a powertrain of an electric vehicle, wherein an amplifier circuit is provided, with an input stage the input of which is symmetrically connected by means of an electrically isolated tap to a positive power line and a negative power line of a voltage source in order to tap an interference signal, and with an output stage, actuated by the input stage, the output of which is symmetrically connected in each case via an output capacitor to the positive power line and the negative power line, in order to feed in a correction signal.

Active filter for bipolar voltage sources

An energy storage device, including a housing part, in which at least one electrical storage cell as well as a connecting element are arranged. The electrical energy storage cell is electrically connected to an electrical connection arranged or formed on at least one freestanding outer wall section of the housing part. The at least one electrical connecting element is surrounded at least in sections by at least one electromagnetic damping element for attenuation of electromagnetic emissions.

Energy store, energy store arrangement for a motor vehicle and motor vehicle

A method for detecting the state of a load device which can be connected to a switching connection, wherein the switching connection can be coupled to, and decoupled from, a predefined switching potential. A voltage drop across the switching connection is used as a basis for detecting whether the load device is connected to the switching connection, the load device is not connected to the switching connection or there is a short circuit between the switching connection and a first or a second switching potential. An additional current source is connected to the switching connection at the same time as the switching connection is decoupled from the predefined switching potential.

Method and circuit arrangement for detecting the state of a load device which can be connected to a switching connection

A circuit includes a switching unit, a switching element, and a control unit. The control unit provides at least one supply signal depending on a switching position of the switching element. An advance signal and the supply signal(s) of the control unit are assigned to the switching unit on the input side. The switching unit supplies and controls predetermined components of the switching unit, which are configured to control the switching element in accordance with the advance signal in such a way that the components activate the switching element. The switching unit is also configured to detect the supply signal(s) present once the switching element has been activated and in response thereto to switch to supplying the predetermined components by way of the supply signal(s).

Circuit arrangement

A first voltage, which is dropped out onto a pull-down resistor that is coupled to a first power circuit breaker, is compared to an adjustable first reference voltage in order to determine a first comparative value. A second voltage, which is dropped out onto the pull-up resistor that is coupled to the second power circuit breaker, is compared to an adjustable second reference voltage in order to determine a second comparative value. Determination then occurs according to the first comparative value and second comparative value as to whether the first output pin of the first power circuit breaker and the second output switch of the second power circuit breaker are contacted to each other. The first output pin and second output pin are connected to one another by way of a node outside the power circuit breaker.

Method and circuit arrangement for verifying electrical contacts between a first output pin of a first power switch of a power switch device and an external node and a second output pin of a second power switch of said power switch device and said node

A circuit configuration providing a diagnostic signal for a power switching device which switches a load has a test circuit, a filter device, a validation device, and a coding device. The test circuit tests the power switching device and generates error symptoms for characterizing error types of different priorities. The filter device, depending on an activation signal activating the power switching device, provides a validity signal for the generated error symptoms. The validity signal specifies the validity of the corresponding error symptom in each case. The validation device validates a generated error symptom depending on the associated validity signal in each case and validates the validated activation signal and from this generates a group of is states and the associated complementary states. The coding device codes the states and complementary states depending on the priorities of the error types assigned to the states and complementary states. The diagnostic signal is formed from the coded states and complementary states.

Growing community of inventors

Wuppertal, Germany

Bastian Arndt