Method for operating electronic automobile-control device to protect controller area network bus transceiver in motor vehicle, involves reducing voltage by series connection of protective diodes and capacitor during short-circuit

摘要

The method involves reducing voltage by a series connection of protective diodes (11, 15) i.e. bipolar Zener-diodes, and a capacitor (14) during short-circuit between a connection line and a voltage guiding line. The capacitor is unloaded over a parallel switched ohmic resistor (12). An independent claim is also included for a device for operating an electronic automobile control device.