Delaval, Guillaume Laurent

The disclosure relates to a method implemented by an electronic control unit in a vehicle controller area network. The ECU has a CAN controller and a CAN transceiver that is connected to a CAN bus. The method comprises, by the CAN controller, transmitting outgoing messages and/or receiving from the CAN transceiver incoming messages that have been transmitted to the CAN transceiver through the CAN bus. Each message contains an indication of a respective level of priority among a predetermined set of levels of priority. The method comprises, by the CAN transceiver, inserting messages in at least one priority queue of a buffer, based on the indication of the respective level of priority contained in the messages and emptying the buffer at a dynamically controlled rate, following the at least one priority queue. This forms an improved solution for managing overloads of the CAN bus and/or the CAN controller.

The disclosure notably relates to a computer-implemented method for making an emergency communication in a vehicle. The method comprises, by an In-vehicle Infotainment (IVI) unit of the vehicle, determining whether a Telematic Contril Unit (TCU) of the vehicle made an emergency communication upon detection of an emergency of the vehicle. The TCU and the IVI unit are both configured for detection of the emergency. The method further comprises, if the IVI unit determines that the TCU did not make an emergency communication upon detection of the emergency, triggering, by the IVI, a backup emergency communication. This constitutes an improved solution for making an emergency communication in a vehicle.

A method (200) for determining an elevation of a road portion used by a vehicle, said method (200) comprising the following steps: - detecting (201) signals emitted by at least two respective ground-based transmitters, said ground-based transceivers being each positioned at distinct elevations, - comparing (206) the detected signals to determine the signal having the highest power, - determining (208) the elevation of the road portion based on the comparison

The invention relates to a telematics control unit (1) for a vehicle (3), said telematics control unit (1) comprising at least one antenna (10) connected to an electronic support (11), a first housing (12) and a second housing (13) that are configured to house said at least one antenna (10) and said electronic support (11), wherein it further comprises a plastic carrier (14) that is placed opposite to the electronic support (11), and wherein said at least one antenna (10) is printed on said plastic carrier (14).

The invention relates to an antenna module (1) for a telematics control unit (2), said antenna module (1) comprising at least one full band cellular antenna (10) and an electronic support (11) configured to support said full band cellular antenna (10), wherein said full band cellular antenna (10) is printed on said electronic support (11) and comprises : - a body (100), - a feeding pin (101.1) that is configured to transmit and receive power for the full band antenna cellular (10), and - a first loading pin (101.2) that is connected to a first reactive component (17) and that is configured to tune the full band cellular antenna (10) to resonate according to a frequency within the first frequency band (F1), - a ground pin (101.3) that is connected to a second reactive component (18) to generate a resonance of the full band cellular antenna (10) in a second frequency band (F2), - a second loading pin (101.4) that is connected to a third reactive component (19) and that is configured to tune the full band cellular antenna (10) to resonate according to a frequency within the first frequency band (F1).

The invention relates to an antenna module (1) for a telematics control unit (2), said antenna module (1) comprising at least one full band cellular antenna (10) and an electronic support (11) configured to support said full band cellular antenna (10), wherein said full band cellular antenna (10) is metal stamped and comprises : - a body (100), - a feeding pin (101.1) that is configured to transmit and receive power for the full band antenna cellular (10), and - a first loading pin (101.2) that is connected to a first reactive component (17) and that is configured to tune the full band cellular antenna (10) to resonate according to a frequency within the first frequency band (F1), - a ground pin (101.3) that is connected to a second reactive component (18) to generate a resonance of the full band cellular antenna (10) in a second frequency band (F2), - a second loading pin (101.4) that is connected to a third reactive component (19) and that is configured to tune the full band cellular antenna (10) to resonate according to a frequency within the first frequency band (F1).

The invention relates to an antenna module (1) for a vehicle (2) comprising : - a first housing (10), - a second housing (11), - an electronic support (12), wherein said antenna module (1) comprises : - a metal part (13) in the form of slot so that the antenna module (1) is a flat slot antenna module, and - a connector (14) that is configured to connect the electronic support (12) to a telematics control unit (3).

It is provided a method for establishing communication between a first vehicle (2) already parked and a second vehicle (4) approaching the first vehicle, the first vehicle being equipped with a first telecommunication device (3) configured to communicate with a first mobile communication device (6), the second vehicle (4) being equipped with a second telecommunication device (5) configured to communicate with a second mobile communication device (7), the method comprising:- a step of detecting, by the second vehicle, a potential obstruction situation, then- a step of authorizing, by the second telecommunication device (5), the establishment of a communication between the first mobile communication device (6) and the second mobile communication device through a dedicated telematic mobile application.It is also provided a communication system (1) suitable to implement said method.

The invention relates to an electronic telecommunication device comprising a casing enclosing a electronic circuit board (3) on which are connected a first antenna (4) via a first feed terminal (14) and a second antenna (5) via a second feed terminal (15), the first antenna being configured to operate at a first frequency band and the second antenna being configured to operate at a second frequency band overlapping at least partially the first frequency band, wherein the first feed terminal (14) and the second feed terminal are configured so that the respective currents flowing through them are orthogonal to each other.

The disclosure notably relates to a computer-implemented method of key renegotiation with mutual authentication between a first device and a second device. The method comprises performing a Diffie-Hellman protocol, wherein each device sends a respective signed dynamic message to the other device which receives the signed dynamic message and performs public-key-based authentication. The method forms an improved solution for key renegotiation.