Abstract: A power electronics module for a test arrangement for testing a power electronics controller includes: supply connections for supplying energy; at least one load connection for providing at least one electrical connection variable; a supply circuit for providing electrical control voltages; a selection circuit with circuit breakers for switching one of the electrical control voltages onto the at least one load connection of the power electronics module; and an interface for controlling the circuit breakers. The supply connections of the power electronics module are AC supply connections. The supply circuit is a multi-phase circuit for providing a plurality of phase voltages on a plurality of phase conductors. The selection circuit connects a phase conductor to the at least one load connection of the power electronics module.

Abstract: A test arrangement for emulating phase currents of an electric motor for testing a power electronic control unit. The control unit drives the electric motor and can be connected to the test arrangement. An inductance emulator simulates the electric motor as an electrical load for the control unit via a power electronic circuit, the inductance emulator acting as a current source. A test device influences the phase current of the inductance emulator as a function of an analysis of an output voltage of the control unit. The test device performs the analysis such that the output voltage of the control unit is compared with multiple, preferably three, voltage ranges, and a respective range for a control variable of the phase current is specified depending on the voltage range in which the output voltage of the control unit is located, which control variable is a control voltage of the inductance emulator.

Abstract: A power electronics module for a test arrangement for testing a power electronics controller includes: supply connections for supplying energy; at least one load connection for providing at least one electrical connection variable; a supply circuit for providing electrical control voltages; a selection circuit with circuit breakers for switching one of the electrical control voltages onto the at least one load connection of the power electronics module; and an interface for controlling the circuit breakers. The supply connections of the power electronics module are AC supply connections. The supply circuit is a multi-phase circuit for providing a plurality of phase voltages on a plurality of phase conductors. The selection circuit connects a phase conductor to the at least one load connection of the power electronics module.

Abstract: A simulation apparatus for simulating a peripheral circuit arrangement connected to a regulating device and has a first current controller for influencing a first load current and a second current controller for influencing a first source current. The first current controller is controlled by a model code and used to set the first load current, and the first load current is routed to a first load connection of the regulating device. The second current controller is controlled by the model code and used to set the first source current, which is routed to a first supply connection of the regulating device. The model code influences the model code on the first current controller and the second current controller allows the first load current to be recovered at least proportionally from the first source current and/or the first source current to be recovered at least proportionally from the first load current.

Abstract: A device connectable to a control device for simulating an effect of at least one electrical or electronic load being connected to at least one terminal of the control device includes: a processing unit configured to at least one of compute and make available a control variable corresponding to the effect of the at least one electrical or electronic load that is to be simulated, and a power supply device: The power supply device includes at least one auxiliary voltage source configured to form at least one of a current source and a current sink and configured to receive the control variable from the processing unit. The at least one auxiliary source is configured to draw a current from the control device or impress a current on the control device based on the received control variable.

Abstract: A simulation apparatus for simulating a peripheral circuit arrangement connected to a regulating device and has a first current controller for influencing a first load current and a second current controller for influencing a first source current. The first current controller is controlled by a model code and used to set the first load current, and the first load current is routed to a first load connection of the regulating device. The second current controller is controlled by the model code and used to set the first source current, which is routed to a first supply connection of the regulating device. The model code influences the model code on the first current controller and the second current controller allows the first load current to be recovered at least proportionally from the first source current and/or the first source current to be recovered at least proportionally from the first load current.

Abstract: A device connectable to a control device for simulating an effect of at least one electrical or electronic load being connected to at least one terminal of the control device includes: a processing unit configured to at least one of compute and make available a control variable corresponding to the effect of the at least one electrical or electronic load that is to be simulated, and a power supply device: The power supply device includes at least one auxiliary voltage source configured to form at least one of a current source and a current sink and configured to receive the control variable from the processing unit. The at least one auxiliary source is configured to draw a current from the control device or impress a current on the control device based on the received control variable.

Abstract: A battery emulation device for simulating a battery cell voltage at a terminal of a battery control unit in accordance with a setpoint value includes a control unit configured to determine the setpoint value and provide the determined setpoint value via a galvanically isolated interface; and at least one emulation channel, each including: a voltage source; an amplifier unit; connection lines for connecting the emulation channel; measurement lines; and a fault simulation device configured to simulate fault states.

Abstract: A method for simulating an effect of at least one electrical/electronic load includes: providing a controllable power supply unit that is connected to at least one terminal of a control unit; and simulating a first current theoretically flowing through a simulated load at the at least one terminal by drawing a second current from the control unit by the controllable power supply unit or impressing a third current on the control unit by the controllable power supply unit.

Abstract: A circuit for simulating an electrical load at a terminal of a test circuit having at least one first switch and at least one second switch includes a third switch connected to the first switch of the test circuit via a first external connection point. A fourth switch is connected to the second switch of the test circuit via a second external connection point. The first switch and the second switch are connected via a shared, first internal connection point to the terminal of the test circuit and the third switch and the fourth switch are connected via a shared, second internal connection point such that that the first switch, the second switch, the third switch and the fourth switch form an H-bridge circuit. A voltage source is configured to provide the first and second external connection points with a supply voltage. A controllable voltage source is connected in a transverse bridge branch between the terminal and the second internal connection point. An inductance is active in the transverse bridge branch.

Abstract: A battery emulation device for simulating a battery cell voltage at a terminal of a battery control unit in accordance with a setpoint value includes a control unit configured to determine the setpoint value and provide the determined setpoint value via a galvanically isolated interface; and at least one emulation channel, each including: a voltage source; an amplifier unit; connection lines for connecting the emulation channel; measurement lines; and a fault simulation device configured to simulate fault states.

Abstract: A circuit for simulating an electrical load at a terminal of a test circuit having at least one first switch and at least one second switch includes a third switch connected to the first switch of the test circuit via a first external connection point. A fourth switch is connected to the second switch of the test circuit via a second external connection point. The first switch and the second switch are connected via a shared, first internal connection point to the terminal of the test circuit and the third switch and the fourth switch are connected via a shared, second internal connection point such that that the first switch, the second switch, the third switch and the fourth switch form an H-bridge circuit. A voltage source is configured to provide the first and second external connection points with a supply voltage. A controllable voltage source is connected in a transverse bridge branch between the terminal and the second internal connection point. An inductance is active in the transverse bridge branch.

Abstract: A method for simulating an effect of at least one electrical/electronic load includes: providing a controllable power supply unit that is connected to at least one terminal of a control unit; and simulating a first current theoretically flowing through a simulated load at the at least one terminal by drawing a second current from the control unit by the controllable power supply unit or impressing a third current on the control unit by the controllable power supply unit.