94 results about "Vehicular communication systems" patented technology

The invention discloses a vehicle communication fault source determination method and related equipment, and relates to the technical field of vehicle communication, the method comprises the following steps: obtaining communication operation information of a plurality of processing levels in a vehicle communication system, the plurality of processing levels comprising a hardware layer, a middle layer, a security layer and a network layer; based on a preset log format, recording the communication operation information, and generating an encrypted log; and performing fault root cause analysis on the encrypted log through a preset fault tree model to obtain a target fault source. Through multi-level log acquisition and fault tree analysis, in combination with a structured format and encrypted storage, vehicle communication fault diagnosis with accurate and efficient fault positioning, data traceability, safety and credibility can be realized.

A vehicle includes: a plurality of Ultra Wide Band (UWB) transceivers; and a controller configured to control the plurality of UWB transceivers to selectively operate, based on location information of a mobile key in which the UWB function is embedded, in at least one of a first mode for communication and a second mode for detecting an obstacle.

A vehicle communication system includes a plurality of ECUs connected by the communication network including a plurality of communication transmission lines. Each of the ECUs includes an identification unit that identifies a target ECU to be a communication partner, and a relay transmission line and a relay ECU through which communication with the target ECU is routed, a standby time determination unit that determines a transmission standby time based on information on the relay ECU, the transmission standby time being a time from transmission of an activation instruction to another one of the ECUs closest to the ECU along the relay transmission line to transmission of a control signal toward the target ECU, and a communication unit that transmits the control signal after an elapse of the transmission standby time after transmitting the activation instruction to the relay transmission line closest to the ECU.

The invention relates to a method and a vehicle communication system (3) for a vehicle (1) for selecting a radio cell (2) of a mobile network, a vehicle (1) with a corresponding vehicle communication system (3) and a vehicle fleet system (12) with several fleet vehicles (11).

A vehicle communication system includes a gateway device. The gateway device is configured to receive electric power from a battery of a vehicle, relay communication among multiple communication lines coupled to respective electronic control units, perform, when receiving a signal through any of the communication lines, a sleep wake-up operation by transmitting a wake-up request signal to switch one or more of the electronic control units to be woken up from a sleep mode to a wake-up mode, and refrain from transmitting the wake-up request signal in a case where the gateway device determines in view of electric power consumption of the battery that transmission of the wake-up request signal is unacceptable.

A method and system for enabling interactive learning for connected vehicles. The system includes a vehicle data hub (VDH) component, a system learning and updating (SLU) component, and an application delivery network (ADN). The VDH component enables cloud-coordinated data collection by the connected vehicles. The VDH component includes a vehicle-based portion with an intelligent buffer in communication with a vehicle communication system and a VDH cloud-based service portion. The SLU component is a cloud-based service configured to manage data campaigns and specific triggers for efficient data collection, data processing, and the delivery of updated and / or new applications based on the processed data to connected vehicles.The ADN component is located in the vehicle and prioritizes data campaign requests relative to other active vehicle services.

Vehicle communication system, comprehensive: an on-board device (130); and one or more vehicle controllers (120) connected to a vehicle network (NW1, NW2) wherein the on-board device (130) is configured to perform the following steps: Transmitting an encrypted message (MS), encrypted outside of a vehicle, to one or more vehicle controllers (120) connected to the vehicle network (NW1, NW2); and if the encrypted message (MS) is an individual message to one of the vehicle controllers (120), transmission of the encrypted message (MS) to one of the vehicle controllers (120) via the vehicle network (NW1, NW2); and if the encrypted message (MS) is a common message to the one or more vehicle controllers (120), decrypt the encrypted message (MS) using an encryption key (K2, K5) belonging to the on-board device (130), and then transmit the decrypted message to the one or more vehicle controllers (120) via the vehicle network (NW1, NW2).

A method for vehicle communication applied to a central gateway of a vehicle communication system. The method comprises: receiving zone information from a source zone controller of the plurality of zone controllers based on a time-sensitive network protocol, and the zone information comprises vehicle body data of a vehicle area controlled by the source zone controller; determining information to be transmitted based on the zone information; determining a target zone controller for receiving the information to be transmitted among the plurality of zone controllers based on the zone information; sending the information to be transmitted to the target zone controller based on the time-sensitive network protocol. A vehicle communication system, a central gateway, and a non-transitory storage medium are also provided.

Vehicle-mounted system (1) for communicating with an external tool (2), wherein the vehicle-mounted system (1) comprises: a communication device (16); a tool key recovery device (11, S62-S64); and a communication controller (11, S65), wherein the vehicle-integrated system (1) and an external server (3) provide a vehicle communication system, wherein the external tool (2) stores a secret tool key, where the external server (3) stores information about an external tool, where the information about an external tool provides a public tool key and key identification information that are linked together, wherein the public tool key provides a public key that forms a pair with the secret tool key, wherein the key identification information provides identification information about the public tool key, wherein the communication device (16) communicates with the external server (3), wherein, when the external tool (2) requests a communication connection with the vehicle-bound system (1), the tool key acquisition device (11, S62-S64) sends the key identification information according to the external tool (2), which is a request source, to the external server (3) via the communication device (16), so that the tool key acquisition device (11, S62-S64) obtains the public tool key associated with the key identification information from the external server (3) via the communication device (16), wherein the communication controller (11, S65) performs cryptographic communication with the external tool (2) representing the request source using the public tool key obtained through the tool key acquisition device (11, S62-S64), wherein the communication controller (11, S65) performs the cryptographic communication with the external tool (2) in a public key encryption system using the public tool key, such that the communication controller (11, S65) shares a common key with the external tool (2), where the shared key provides cryptographic communication in a shared key encryption system, wherein the vehicle-mounted system (1) further comprises an update device (11, S67) for updating the common key, and wherein the update device (11, S67) generates an updated common key based on vehicle information.

A communication unit (6) provided in a vehicle control device (5) periodically transmits a first command signal for requesting a response from a portable device (4) while a vehicle (2) is parked or stopped (S10). The portable device (4) transmits a first response signal upon receiving the first command signal. When the communication unit (6) receives the first response signal (S20: Yes), an authentication unit (7) executes a first user authentication (S30). When the first user authentication is established, the communication unit (6) periodically transmits a second command signal requesting a response from the portable device (4) and a position detection signal enabling detection of the distance from the vehicle (2) when the portable device (4) is in a predetermined area (20) (S70). When it is determined that the portable device (4) is in the predetermined area (20), the portable device (4) transmits a second response signal (S80). When the communication unit (6) receives the second response signal (S90: Yes), the authentication unit (7) executes a second user authentication, which has higher security than the first user authentication (S100).

The invention relates to a vehicle communication system and method, a storage medium, a program product, equipment and a vehicle. The vehicle communication system comprises a domain controller and a radar. Wherein the domain controller is used for controlling the radar. The radar is controlled through the domain controller, problems of the radar can be diagnosed in time or the version of the radar can be upgraded in time, normal work of the radar is ensured, and driving safety is improved.

A vehicle communication system includes an exterior communication assembly, a control assembly, and wiring. The exterior communication assembly is designed to be mounted at a driver side mirror of a vehicle. The exterior communication assembly includes a speaker and a microphone. The control assembly includes a battery in a battery housing designed to be mounted under a vehicle dashboard, a microprocessor operatively connected to the battery, and a wireless transceiver operatively connected to the microprocessor. The wireless transceiver is designed to operatively connect the first communication assembly to a personal electronic device having a speaker and a microphone. The wiring connects the exterior communication assembly to the control assembly and is designed to be installed in and through a wiring conduit in a driver side mirror and a driver side door.

A method for distributing communication resources between subfunctions of a function, executable on two or more executability levels, of a communication system for a vehicle. The method includes ascertaining a communication resource requirement of the function on a first executability level, provided by subfunctions of the function; checking whether the communication resource requirement is able to be met with available communication resources; if not, determining at least one of the subfunctions that is able, with the available communication resources, to provide only a second executability level that is restricted in relation to the first executability level; distributing available communication resources between the two or more subfunctions comprising restricting the available communication resources for one or more other subfunctions that differ from the at least one subfunction, so that the two or more subfunctions provide the second executability level of the function following the restriction.

A system for establishing a wireless connection between a mobile device and a vehicle includes a human-machine interface (HMI), a vehicle communication system, where the vehicle communication system includes a wireless connection transceiver, a speaker, a microphone, a controller in electrical communication with the HMI, the vehicle communication system, the speaker, and the microphone. The controller is programmed to activate a wireless connection mode of the controller based at least in part on a signal from the microphone and transmit a vehicle wireless connection identifier using the speaker. The controller is further programmed to confirm a vehicle wireless connection passcode using at least one of the speaker and the microphone and establish a wireless connection between the mobile device and the controller using the wireless connection transceiver in response to confirming the vehicle wireless connection passcode.

The invention provides a vehicle, a communication system, a vehicle control system, and a vehicle control method. The vehicle is provided with a position detection device configured to detect the position of a vehicle key, and a control device. The control unit is configured so as to execute control that, when a reservation request for closing a door of the vehicle is acquired and the position of the vehicle key detected by the position detection device is separated from the vehicle by a predetermined distance or more, starts control in a first mode including closing the door, and that, when a reservation request for closing the door of the vehicle is received, starts control in a second mode including closing the door of the vehicle. When the reservation request is acquired and the position detection device does not detect the position of the vehicle key only for a predetermined period, control of a second mode, which includes closing the door and is different from the first mode, is started.

The present invention relates to a vehicle communication system with an alternative periodic connection mode. A communication system for a vehicle includes a controller adapted to selectively execute an alternative periodic connection mode for communication between a user of the vehicle and a remote assistance unit. The vehicle is not connected to a wireless plan. The controller has a processor and a tangible non-transitory memory with instructions recorded thereon. The alternative periodic connection mode is activated based in part on at least one automatic trigger and / or a request from the user. The controller is adapted to assign a different identifier to the vehicle during execution of the alternative periodic connection mode. The different identifier is defined by a plurality of parameters including a connection time interval, an internet protocol address range, and a host port. The internet protocol address range and host port can be dynamically configured to remain disengaged unless permission is given to the system.

System (10) for route planning of a vehicle (12) based on the road characteristics, wherein the system (10) comprises: a global navigation satellite system (GNSS) (16) for determining a geographic location of the vehicle (12); a vehicle communication system (20) for communicating with server systems (28); and a vehicle controller (14) in electrical connection with the GNSS (16) and the vehicle communication system (20), wherein the vehicle controller (14) is programmed: to determine a vehicle mass, a vehicle height and a vehicle width; to receive a navigation request from an occupant of the vehicle (12); and to determine a navigation route using at least the GNSS (16) and the vehicle communication system (20) in response to receiving the navigation request, wherein the navigation route is based at least partially on the vehicle mass, vehicle height and vehicle width, wherein, in order to determine the navigation route, the vehicle controller (14) is further programmed as follows: to determine the geographical location of the vehicle (12) using the GNSS (16); to transmit the vehicle's geographical location (12), navigation request, vehicle mass, vehicle height and vehicle width to a server controller (30); and to receive the navigation route from the server controller (30) using the server controller (30), which is programmed as follows: to determine several possible routes at least partially based on the geographical location of the vehicle (12), each of which satisfies the navigation requirement; to determine a route-drive comfort score for each of the several possible routes; and to select the navigation route from the several possible routes at least partially based on the route drive comfort score for each of the several possible routes, wherein the server controller (30) is electrically connected to a database, wherein the database contains several segment drive comfort records, wherein each of the several segment drive comfort records corresponds to one of several road segments of several lanes, and wherein each of the several segment drive comfort records has a location attribute, a vehicle class attribute and a drive comfort score attribute, wherein, in order to determine the route drive comfort score for each of the several possible routes, the server controller (30) is further programmed as follows: to determine a vehicle class of the vehicle (12) at least partially based on the vehicle mass, vehicle height and vehicle width; to retrieve a subset of the multiple segment drive comfort records from the database, wherein the location of each subset of the multiple segment drive comfort records is along one of the multiple possible routes, and wherein the vehicle class of each subset of the multiple segment drive comfort records corresponds to the vehicle class of vehicle (12); and The route drive comfort score for each of the multiple possible routes is determined by summing the drive comfort score of each subset of the multiple segment drive comfort data records along each of the multiple possible routes.

A system for managing wireless connections for a vehicle may include one or more wireless devices, a vehicle communication system, and a vehicle controller in electrical communication with the vehicle communication system. The vehicle controller is programmed to determine a selected device of the one or more wireless devices with which to establish a connection using the vehicle communication system. The vehicle controller is further programmed to establish a wireless connection between the selected device and the vehicle communication system in response to determining the selected device.

In certain embodiments, a control system for an electric vehicle includes an electronic control unit (ECU) bus and a plurality of ECUs. A first ECU executes a broker service that communicates with a network server over a network, receives state information from applications executing on the ECUs, generates subscription information based on the state information, and transmits the subscription information to the applications that are subscribed to the subscription information. The first ECU also executes a translation service that communicates with the broker service and the ECU bus, and an application that generates state information, sends the state information to the broker service, and receives subscription information from the broker service. The second ECU executes an application that transmits state information over the ECU bus to the first ECU, and receives subscription information over the ECU bus from the first ECU.

In some embodiments, apparatuses and methods are provided herein that may be used to allow connection to a vehicle. In some implementations, a method includes receiving, by an authorization server, a connection request for the vehicle from a remote device; verifying the connection request by the authorization server; generating, by the authorization server, an authorization certificate in response to verifying the connection request; the authorization server sends the authorization certificate; receiving, by the vehicle, the certificate of authorization; authenticating, by the vehicle, the certificate of authorization; and activating, by the vehicle, a vehicle communication system in response to authenticating the certificate of authorization.

Each of a first communication device and a second communication device is capable of performing vehicle-to-vehicle communication and cellular communication. The first communication device issues a proxy request to the second communication device for communication with an application server. When the second communication device receives proxy communication, the second communication device acquires an unused port number from the first communication device, notifies a relay server of the port number as the number of the port for proxy communication, and then performs the proxy communication.

A method for determining a distance between a transmitter and a receiver, comprising storing, in a memory, first data indicating characteristics of an expected peak value, receiving, by the receiver, a data sequence comprising a first peak value and a second peak value, authenticating, by a processor, the data sequence in response to second data received in the second peak value, determining, by the processor, a distance between a transmitter and the vehicle communication system in response to a difference between a first time of reception of the first peak value and a second time of reception of the second peak value, initiating a determination of the distance in response to the first peak value matching the expected peak value, and activating, by a vehicle control unit, a vehicle control algorithm in response to the distance.

Improved security in ultra wide band ranging systems is provided. A method for determining a distance between a transmitter and a receiver includes: storing, in a memory, first data indicative of a characteristic of an expected peak; receiving, by the receiver, a data sequence comprising a first peak and a second peak; authenticating, by the processor, the data sequence in response to second data received in the second peak; determining, by the processor, a distance between the transmitter and the vehicle communication system in response to a difference between a first reception time of the first peak and a second reception time of the second peak, wherein the determination of the distance is initiated in response to the first peak matching the expected peak; and enabling, by the vehicle controller, a vehicle control algorithm in response to the distance.

This application discloses a certificate processing method, apparatus, and system for a vehicle-to-everything (V2X) network, used to improve the efficiency of short-term certificate issuance. This application provides a certificate processing method for a V2X network, applied to a vehicle communication system. The vehicle communication system includes: a V2X communication terminal and multiple short-term certificate issuing servers, the multiple short-term certificate issuing servers belonging to different regions. The method includes: the V2X communication terminal sending a first certificate acquisition request to a first short-term certificate issuing server, the first certificate acquisition request including: the long-term certificate of the V2X communication terminal and the region to which the short-term certificate issuing server belongs; the V2X communication terminal receiving a short-term certificate sent by the first short-term certificate issuing server.

The invention provides a communication control method and device for a vehicle, equipment and a medium, and the method comprises the steps: responding to the state change of a target communication link, updating the global link state data of a first communication node corresponding to a first port, and obtaining first state data; wherein the first ports are ports at two ends of the target communication link; updating global link state data of second communication nodes at the two ends of the redundant link according to the first state data to obtain second state data, and adjusting the states of second ports at the two ends of the redundant link based on the second state data; according to the state change of the target communication link, the state of the first port is adjusted before the global link state data of the first communication node corresponding to the first port is updated or after the state of the second port at the two ends of the redundant link is adjusted. According to the invention, the problem that the communication link state is inconsistent with the port state can be effectively solved, and the stability of data transmission and the robustness of a vehicle communication system are improved.

A message transmission method from a first vehicle (350) within a vehicle convoy (356), the method comprising: Receiving a convoy data message from a second vehicle (354) in the vehicle convoy via a first communication channel (60c), wherein the convoy data message includes a communication status indicator that provides an indication of the various communication channels available to the second vehicle (354) within the vehicle convoy (356); Determine on the first vehicle (350) that a second communication channel (60c) is not available; Analyzing the received convoy data message at the first vehicle (350) to identify the availability of the second communication channel (60c) in the second vehicle (354) in the convoy (356); Sending a convoy data message from the first vehicle (350) via the first communication channel (60a) with a request that the convoy data message be forwarded by the second vehicle (356) using the second communication channel (60c).

The invention discloses an air-ground Internet of Vehicles capacity analysis method and system based on full-duplex non-orthogonal multiple access, and the method comprises the steps: expanding the coverage range and link reliability of the Internet of Vehicles through introducing an unmanned plane, and improving the communication performance of the Internet of Vehicles through employing a full-duplex non-orthogonal multiple access technology. In combination with a channel estimation method based on a least square method and a time-varying Rice factor, the application effect in a dynamic vehicle communication scene is further optimized; then, a generalized integral and infinite series summation method is adopted to derive an accurate closed analytical expression of the total channel capacity, and the service quality of the vehicle communication system in the Internet of Vehicles under the Rician channel can be accurately evaluated; thirdly, deriving an approximate expression of the total channel capacity by using a truncation series approximation method, effectively reducing the calculation complexity, establishing a closed mapping relationship between the truncation term number and an approximate error, and providing theoretical support for efficient and stable cooperative communication in the Internet of Vehicles;

Shorted detection apparatus for a resonant antenna network and methods thereof are disclosed. A vehicle communication system is also disclosed. In some embodiments, the vehicle communication system includes a vehicle access module, a plurality of cables coupled to the vehicle access module, and an antenna coupled to the plurality of cables, wherein the plurality of cables are decoupled from the vehicle access module based on a shorted analysis of the plurality of cables through the vehicle access module. To determine that a short exists in the plurality of cables, the shorted analysis includes determining whether a maximum of an antenna current sample taken from the antenna is greater than a diagnostic parameter multiplied by an average of the antenna current sample.

A vehicle communication system includes a vehicle equipped with a battery that supplies electric power to a drive source, and a server that communicates with the vehicle. The vehicle includes a communication device that collects predetermined vehicle data and uploads the vehicle data to the server. The server includes a server-side storage device that stores the vehicle data uploaded from the vehicle. The communication device of the vehicle communicates with the server via mobile data communication on a pay-as-you-go basis and fixed-line data communication on a flat-rate basis. In a state where the communication device of the vehicle is allowed to conduct the fixed-line data communication with the server, the communication device uploads the vehicle data to the server via the fixed-line data communication.

An optical detection system includes a first optical transmitter module, a first optical receiver module, a second optical receiver module, and a second optical transmitter module. The first optical transmitter module is configured to emit detection light. A first light transmitter of the first optical transmitter module includes a photonic crystal surface emitting laser. A first metasurface of the first optical transmitter module is located above the first light transmitter. The second optical receiver module is configured to receive first communication light. The second communication light has information of signal light and information in first communication light. A second light transmitter of the second optical transmitter module includes a photonic crystal surface emitting laser. A second metasurface of the second optical transmitter module is located above the second light transmitter.