Patent ID: 11959947
Assignee: KNORR-BREMSE SYSTEME FUER NUTZFAHRZEUGE GMBH
Field: Measurement (Instruments)
Classification: CPC G  B  H | IPC B  G

Claim 10:
11. A control unit for a vehicle, comprising:
an overvoltage protection circuit, including:
an input terminal for applying an electrical input voltage, a test terminal for the application of an electrical test voltage, and an output terminal for providing an electrical output voltage to supply the control unit;
a reference device to provide a reference voltage using the input voltage;
a dividing device to provide a divided voltage using the output voltage;
a control device to provide a regulation signal using the reference voltage and the divided voltage;
a regulation device connected between the input terminal and the output terminal, wherein the regulation device is configured to provide the output voltage using the input voltage and the regulation signal; and
a modification device to modify a value of the divided voltage using the test voltage;

a voltage supply terminal, wherein the output terminal of the overvoltage protection circuit is connected to the voltage supply terminal of the control unit; and
a test device for testing a functionality of the overvoltage protection circuit, wherein the test device is configured to capture a first value or first value profile of the electrical output voltage, to capture a second value or second value profile of the electrical output voltage, and to provide a test signal using the first value or first value profile and the second value or second value profile.