Abstract: A relay device connected to an in-vehicle network includes a first determination unit; a second determination unit; and a relay processing unit. The first determination unit is configured to send out a high priority transfer message through a first path that runs from the first determination unit to the relay processing unit without passing through the second determination unit. The relay processing unit is configured to output the high priority transfer message, acquired through the first path, to the second determination unit and the in-vehicle device. The first determination unit is configured to send out a normal priority transfer message to the relay processing unit through a second path that runs from the first determination unit to the relay processing unit via the second determination unit. The relay processing unit is configured to output the normal priority transfer message, acquired through the second path, to the in-vehicle device.

Abstract: The relay device transmits data for writing or updating a program received from the external communication bus to an in-vehicle communication bus, which is the transfer destination, in order of reception of the data. A storage area for temporary storage can be smaller and costs can be reduced, as compared with a case where the data is stored until all data is prepared for each of in-vehicle devices. Further, the required time can be reduced as compared with a case where all data is received for each of the in-vehicle devices and then transmitted to the in-vehicle devices. The external device transmits data addressed to the in-vehicle devices to the relay device in parallel.

Abstract: An object of the present invention is to avoid the situation where data to be transmitted have to be discarded, even when a network to which the data is to be transmitted is unavailable. The electronic control unit has: a determination part that executes a first determination process for determining whether a network to which data is to be transmitted is available or not; and a transmission part that executes a first transmission process for transmitting the data to the network when it is determined that the network is available, and executes a storage process for storing the data in a storage medium when it is determined that the network is unavailable. The electronic control unit executes the same processes for another network as well.

Abstract: The relay device transmits data for writing or updating a program received from the external communication bus to an in-vehicle communication bus, which is the transfer destination, in order of reception of the data. A storage area for temporary storage can be smaller and costs can be reduced, as compared with a case where the data is stored until all data is prepared for each of in-vehicle devices. Further, the required time can be reduced as compared with a case where all data is received for each of the in-vehicle devices and then transmitted to the in-vehicle devices. The external device transmits data addressed to the in-vehicle devices to the relay device in parallel.

Abstract: A relay device connected to an in-vehicle network includes a first determination unit; a second determination unit; and a relay processing unit. The first determination unit is configured to send out a high priority transfer message through a first path that runs from the first determination unit to the relay processing unit without passing through the second determination unit. The relay processing unit is configured to output the high priority transfer message, acquired through the first path, to the second determination unit and the in-vehicle device. The first determination unit is configured to send out a normal priority transfer message to the relay processing unit through a second path that runs from the first determination unit to the relay processing unit via the second determination unit. The relay processing unit is configured to output the normal priority transfer message, acquired through the second path, to the in-vehicle device.

Abstract: A relay device provided in vehicle having a battery, converting control signal formats, and relaying same between: a first communications unit that sends and receives control signals in a first format relating to charging; and second communications unit that supplies DC voltage, is provided in a charging station that charges battery, and sends and receives control signals in a second format relating to charging. The relay device includes: a limiting unit that limits power supplied between charging station and battery, regardless of vehicle side control performed on control signals' basis; an acquisition unit that obtains DC voltage supplied by charging station and obtains the battery's voltage; a determination unit that determines whether the voltage difference between each obtained voltage is less than threshold value; and a release unit that releases the limits by limiting unit if a determination has been made that the voltage difference is less than threshold value.

Abstract: An in-vehicle communication device that includes: an addition unit that adds a frame to be relayed to an external tool connection bus to a relay table in which targets for relay processing are registered; a judgment unit that judges, when the frame is added to the relay table, whether or not relay processing is delayed after execution of the relay processing is started; and an elimination unit that eliminates the frame from the relay table when it is judged that the relay processing is delayed.

Abstract: A vehicle-mounted charging device (12) includes a vehicle-mounted battery (18), a vehicle-mounted electronic control unit (30) and a modem startup control unit. The vehicle-mounted battery is charged with power supplied from external charging equipment via a charging cable (16). The vehicle-mounted electronic control unit is configured to perform charging communication, relating to charging of the vehicle-mounted battery, with the external charging equipment using an in-band modem (32). The modem startup control unit starts up the in-band modem when the vehicle-mounted electronic control unit performs the charging communication, and that stops a startup of the in-band modem when the vehicle-mounted electronic control unit does not perform the charging communication.

Abstract: An object of the present invention is to avoid the situation where data to be transmitted have to be discarded, even when a network to which the data is to be transmitted is unavailable. The electronic control unit has: a determination part that executes a first determination process for determining whether a network to which data is to be transmitted is available or not; and a transmission part that executes a first transmission process for transmitting the data to the network when it is determined that the network is available, and executes a storage process for storing the data in a storage medium when it is determined that the network is unavailable. The electronic control unit executes the same processes for another network as well.

Abstract: A communication system comprising: a control line transmitting a control signal for controlling charging of a battery mounted on a vehicle; a reference potential line connected to a reference potential of the vehicle serving as a reference for the control signal; a first PLC communication device connected to the control line and the reference potential line and superposing onto the control signal a differential signal having a higher frequency than the control signal so as to perform communication with an external power supply apparatus; and an inductive element which is provided at a point of connection between the reference potential line 1c and the reference potential or provided in the reference potential line and the inductive element having impedance for a noise having a higher frequency than the control signal is higher than the impedance for the control signal.

Abstract: When connection of a charging gun is detected, a charging-control ECU wakes up, and turns on a power supply relay to activate a charging-communication ECU. The charging-control ECU subsequently actives a power-control computer by communicating therewith. The power-control computer closes an SMR, and closes a power supply switch to activate a monitoring unit. If an abnormality occurs in inband communication, the charging-control ECU opens the power supply relay, instructs the power-control computer to shift into sleep mode, and subsequently shifts itself into sleep mode. The power-control computer opens the SMR and the power supply switch, and subsequently shifts into sleep mode.

Abstract: A vehicle power transmitting and receiving control device, applied to a vehicle including an on-vehicle power storage device that transmits and receives power to and from an external power supply device and a communication unit that performs bidirectional communication to transmit and receive the power, includes a determination unit that determines, when an abnormality occurs in the bidirectional communication performed before transmitting and receiving the power, whether or not to continue the bidirectional communication in accordance with a content of the abnormality.

Abstract: A communication system including: a control line transmitting a control signal for controlling charging of a battery of a vehicle; a reference potential line connected to a reference potential of the vehicle; a first PLC communication device connected individually to the control line and the reference potential line and superposing onto the control signal a differential signal having a higher frequency than the control signal so as to perform communication with an external power supply apparatus; an inductive element which is provided in the reference potential line and the inductive element having impedance for a noise having a higher frequency than the control signal is higher than the impedance for the control signal; and a second inductive element provided in a wire connecting the first PLC communication device to a lead battery.

Abstract: A relay device provided in vehicle having a battery, converting control signal formats, and relaying same between: a first communications unit that sends and receives control signals in a first format relating to charging; and second communications unit that supplies DC voltage, is provided in a charging station that charges battery, and sends and receives control signals in a second format relating to charging. The relay device includes: a limiting unit that limits power supplied between charging station and battery, regardless of vehicle side control performed on control signals' basis; an acquisition unit that obtains DC voltage supplied by charging station and obtains the battery's voltage; a determination unit that determines whether the voltage difference between each obtained voltage is less than threshold value; and a release unit that releases the limits by limiting unit if a determination has been made that the voltage difference is less than threshold value.

Abstract: A power supply system and a connector, which can suppress occurrence of crosstalk between a power supply wire, and a control wire and an earth wire in a charging cable that includes the power supply wire, the control wire and the earth wire at the time of connecting a power supplying device with a vehicle having a power storage device to be supplied with power from the power supplying device via the power supply wire and the earth wire to be used for supplying power and the control wire for transmitting a control signal to be used for power supply control of the power storage device, are provided. The ratio of the winding number of a primary coil connected with at least one of the control wire and the earth wire to the winding number of a secondary coil connected with a communication unit that sends and receives a communication signal is set at 1/N (N>1) in a system which satisfies VnC>VnL or is set at N (N>1) in a system which satisfies VnC<VnL.

Abstract: A power management device for vehicles includes a communication control section that performs interactive communication to selectively supply and receive the electric power with respect to the external power source device and a supplying/receiving control section that controls supplying/receiving of the electric power by the vehicle-mounted power storage device. When the condition that the supplying/receiving control section is in the great power state is satisfied, control of the supplying/receiving of the electric power is allowed. If the supplying/receiving control section is in the decreased state before the vehicle-mounted power storage device and the external power source device selectively supply and receive the electric power with respect to each other, the communication control section performs the interactive communication.

Abstract: A communication system comprising: a control line transmitting a control signal for controlling charging of a battery mounted on a vehicle; a reference potential line connected to a reference potential of the vehicle serving as a reference for the control signal; a first PLC communication device connected to the control line and the reference potential line and superposing onto the control signal a differential signal having a higher frequency than the control signal so as to perform communication with an external power supply apparatus; and an inductive element which is provided at a point of connection between the reference potential line 1c and the reference potential or provided in the reference potential line and the inductive element having impedance for a noise having a higher frequency than the control signal is higher than the impedance for the control signal.

Abstract: The power receiving connector to be placed as a vehicle-mounted feeding port is formed by integrating connection terminals, internal wirings, wiring branch parts, a ground wire side branch line, a control wire side branch line, capacitors, a superposition separation element, and a low-pass filter with a housing as a replaceable unit.

Abstract: A communication device includes a first resistance connected between a first reference potential and a midway point of one of a pair communication lines connected to a coil, a second resistance and a third resistance arranged in series so as to be connected between a second reference potential different from the first reference potential and a midway point of the other one of the pair communication lines, and a switch configured to open or close a path between the first resistance and the first reference potential.

Abstract: An output circuit sends a control pilot signal generated in a voltage generator to an input circuit. A communication unit is connected between an earthed wire and a control pilot wire on the output side of the output circuit via a bandpass filter. A communication unit is connected between the earthed wire and the control pilot wire on the input side of the input circuit via a bandpass filter. A low-pass filter is interposed between the output circuit and the communication unit. A low-pass filter is interposed between the input circuit and the communication unit.