CONTROL DEVICE FOR CONNECTING A CAN BUS TO A RADIO NETWORK, AND MOTOR VEHICLE HAVING SUCH A CONTROL DEVICE

摘要

A control device and corresponding motor vehicle for connecting a CAN bus to a radio network, having the following features: the control device includes a wireless controller, a microcontroller, a first CAN transceiver and a second CAN transceiver; the microcontroller is connected, on the one hand, to the wireless controller and, on the other hand, to the CAN transceivers; the first CAN transceiver is connected to the second CAN transceiver; the first CAN transceiver is configured in such a manner that it suppresses transmission via the CAN bus and supports reception via the CAN bus in a normal mode and supports transmission and reception in a diagnostic mode; and the second CAN transceiver is configured in such a manner that it changes the first CAN transceiver from the normal mode to the diagnostic mode when the second CAN transceiver receives a wake-up frame via the CAN bus.

主权项

1. A control device for connecting a CAN bus to a radio network, comprising:
a wireless controller, a microcontroller, a first CAN transceiver and a second CAN transceiver, the microcontroller is connected to the wireless controller and the CAN transceivers, the first CAN transceiver is connected to the second CAN transceiver, the first CAN transceiver is configured to (i) suppress transmission (Tx) via the CAN bus and support reception (Rx) via the CAN bus in a normal mode, and (ii) support transmission (Tx) and reception (Rx) in a diagnostic mode, the second CAN transceiver is configured to change the first CAN transceiver from the normal mode to the diagnostic mode when the second CAN transceiver receives (Rx) a wake-up frame via the CAN bus.