Back to results
US 10,871,791 B2Granted
Battery emulator and method for controlling the battery emulator
AssigneeAVL List GmbH
InventorOliver König
Life of this patent
Estimating the term…
Abstract
In order to achieve sufficiently stable output voltage with low losses even during rapid load changes in a battery emulator, a battery emulator is controlled using model-based control with a model of the battery emulator, wherein a line inductance of the electric line and the back-up capacitor is integrated into the model of the battery emulator.
Claims18
A method for controlling a battery emulator, comprising:
- a voltage supply having an output filter with a filter capacitor and a back-up capacitor having an output voltage applied, the back-up capacitor connected in parallel to the filter capacitor, wherein the filter capacitor is connected to the back-up capacitor with an electric line in order to physically separate the back-up capacitor from the voltage supply, the method comprising:
- controlling the output with a model-based control using a model of the battery emulator, wherein a line inductance of the electric line and the back-up capacitor are integrated into the model of the battery emulator.
A battery emulator comprising:
- a voltage supply, having:
- an input-side rectifier with a direct current intermediate circuit, and
- a DC-DC converter that is connected to the direct current intermediate circuit, and an output filter with a filter capacitor at the output of the DC-DC converter,
- a back-up capacitor having an output voltage applied,
- an electric line connecting the filter capacitor to the back-up capacitor in order to physically separate the back-up capacitor from the voltage supply, and
- an emulator control unit for model-based control of the output voltage, in which a model of the battery emulator is implemented, wherein a line inductance of the electric line and the back-up capacitor are integrated into the model of the battery emulator.
3 more elements
A battery emulator for testing a test object, comprising:
- a voltage supply having an output filter with a filter capacitor at the output of a DC-DC converter;
- a back-up capacitor having an output voltage applied;
- an electric line connecting the filter capacitor and the back-up capacitor in order to physically separate the back-up capacitor from the voltage supply;
- an emulator control unit for model-based control of the output voltage, the emulator control unit implementing a model of the battery emulator that integrates a line inductance of the electric line and the back-up capacitor.
1 more element
Dependencies are inferred from the claim text.