| 摘要 |
A method for detecting an electrical fault in an electrical network of a motor vehicle, the network having at least one battery, at least one pulse-controlled inverter and at least one d.c. voltage converter, and an intermediate circuit current associated with the pulse-controlled inverter being detected with the aid of an intermediate circuit current sensor. A battery current associated with the battery is detected with the aid of a battery current sensor and a d.c. voltage converter current associated with the d.c. voltage converter is detected with the aid of a d.c. voltage converter current sensor, and the magnitude of the detected intermediate circuit current is compared with an intermediate circuit current determined by calculation with the aid of the battery current sensor and the d.c. voltage converter current sensor to check whether a specifiable deviation has been exceeded. A method for detecting an electrical fault in an electrical network of a vehicle that is not current-based, but rather voltage-based.
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