Control device for connecting a can bus to a radio network, and motor vehicle having such a control device
First Claim
1. A control device for connecting a controller area network (CAN) bus to a radio network, said control device comprising:
- a wireless controller, a microcontroller, a programmable logic circuit and a CAN transceiver,the microcontroller is connected between the wireless controller and the programmable logic circuit,the CAN transceiver is connected between the programmable logic circuit and to the CAN bus,a first data stream to the microcontroller for wireless transmission corresponds to a second data stream from the CAN transceiver, andthe programmable logic circuit is configured to monitor a third data stream from the microcontroller which is addressed to the CAN transceiver, compare an ID of a data frame contained in the third data stream to a list of authorized IDs, and, on the basis of the ID in said data frame contained in the third data stream from the microcontroller not being on the list of authorized IDs, the programmable logic circuit suppresses said data frame.
1 Assignment
0 Petitions
Accused Products
Abstract
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 programmable logic module and a CAN transceiver; the microcontroller is connected, on the one hand, to the wireless controller and, on the other hand, to the logic module; the CAN transceiver is connected, on the one hand, to the logic module and, on the other hand, to the CAN bus; a data stream to the microcontroller corresponds to a data stream from the CAN transceiver; and the logic module is configured in such a manner that it monitors a data stream from the microcontroller which is addressed to the CAN transceiver and, on the basis of a data frame contained in the data stream from the microcontroller, suppresses at least this data frame.
18 Citations
10 Claims
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1. A control device for connecting a controller area network (CAN) bus to a radio network, said control device comprising:
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a wireless controller, a microcontroller, a programmable logic circuit and a CAN transceiver, the microcontroller is connected between the wireless controller and the programmable logic circuit, the CAN transceiver is connected between the programmable logic circuit and to the CAN bus, a first data stream to the microcontroller for wireless transmission corresponds to a second data stream from the CAN transceiver, and the programmable logic circuit is configured to monitor a third data stream from the microcontroller which is addressed to the CAN transceiver, compare an ID of a data frame contained in the third data stream to a list of authorized IDs, and, on the basis of the ID in said data frame contained in the third data stream from the microcontroller not being on the list of authorized IDs, the programmable logic circuit suppresses said data frame. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A motor vehicle comprising:
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a controller area network (CAN) bus; and a control device coupled to the CAN bus, the control device comprising; a wireless controller, a microcontroller, a programmable logic circuit and a CAN transceiver, the microcontroller is connected between the wireless controller and the programmable logic circuit, the CAN transceiver is connected between the programmable logic circuit and to the CAN bus, a first data stream to the microcontroller for wireless transmission corresponds to a second data stream from the CAN transceiver, and the programmable logic circuit is configured to monitor a third data stream from the microcontroller which is addressed to the CAN transceiver, compare an ID of a data frame contained in the third data stream to a list of authorized IDsm, and, on the basis of said data frame contained in the third data stream from the microcontroller not being on the list of authorized IDs, the programmable logic circuit suppresses said data frame.
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Specification