Disconnection circuit for separating failed electronic device from data bus in vehicle responds to detected fault for electrical separation from data bus via controlled switches

摘要

The disconnection circuit electrically separates an electronic device (3) mounted on the outside of the vehicle, e.g. a velocity and distance regulation device, from a data bus (CAN) used for data exchange with other electronic systems (5) within the vehicle, via a fault detection device (10), detecting a fault in the electronic device. The electric separation of the faulty electronic device is effected via controlled switches (11,12) inserted in the data bus.