Toyota Jidosha Kabushiki Kaisha

Sumitomo Electric Industries, Limited

Sumitomo Wiring Systems, Limited

Autonetworks Technologies, Limited

Hiroya Andoh

Takeshi Hagihara

Nobuyuki Nakagawa

Yukihiro Miyashita

Yuta Ochiai

Yutaka Komatsu

Yousuke Takata

Ryuichi Kamaga

Atsushi Iwai

Ryou Okada

Tatsuya Izumi

Kazuhiko Nii

Yousuke Takaka

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&#x3e;1) in a system which satisfies VnC&#x3e;VnL or is set at N (N&#x3e;1) in a system which satisfies VnC&#x3c;VnL.

Power supply system and connector

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.

Communication system and communication device

An output circuit sends out, to an input circuit, a control pilot signal generated by a voltage source. A voltage transformer is provided to a control pilot line on the output side of the output circuit, and a communication unit transmits and receives communication signals via the voltage transformer. A voltage transformer is provided to the control pilot line on the input side of the input circuit, and a communication unit transmits and receives the communication signals via the voltage transformer. A low-pass filter is provided to the control pilot line between the input circuit and the voltage transformer.

Provided are a power line communication system, a connector device, and a power line communication device that allow downsizing of a device for power line communication in a vehicle that performs power line communication with a feeding device via a charging cable. An electromagnetic induction type signal converter and a filter necessary for power line communication are provided in a connector device, and a power line communication section which performs power line communication with the electromagnetic induction type signal converter is provided in an ECU. A capacitor, a signal wire, and a capacitorare connected in series between AC linesandextending from a tubular partof the connector device. The electromagnetic induction type signal converter is formed by a primary coil obtained by winding the signal wirearound a toroidal corefitted on the tubular part, and a secondary coil obtained by winding a signal wireconnected to the power line communication section around the toroidal core. Cutoutsandfor housing the signal wiresandwound around the toroidal coreare formed in the tubular partof the connector device

Power line communication system, connector device, and power line communication device

A charging station performs communications by use of a superimposing/separating unit configured by connecting a capacitor, a coupling transformer and a capacitor to branch lines branching out respectively from a control cable and a grounded cable. An electric vehicle performs communications by use of a superimposing/separating unit configured by providing a coupling transformer to the control cable. A capacitor is also connected between the control cable and the grounded cable. Communications are allowed by the configuration of a closed loop circuit comprising the control cable, the branch line, the capacitor, a primary coil of the coupling transformer, the capacitor, the branch line, the grounded cable, the capacitor, and a primary coil of the coupling transformer.

Communication system

Provided are a communication system and a communication device capable of suppressing attenuation of a communication signal superimposed upon a control pilot line. This output circuit () sends a control pilot signal which has been generated at a voltage generation source () to an input circuit (). Between the control pilot line () and the ground line () of the output side of the output circuit (), a communication unit () is connected via a transformer (). Between the control pilot line () and the ground line () of the input side of the input circuit (), a communication unit () is connected via a transformer (). Between the output circuit () and the transformer (), a lowpass filter () is interposed. Between the input circuit () and the transformer (), a lowpass filter () is interposed.

A coupling transformernecessary for power line communication is provided in a connector device. The coupling transformeris formed by winding an AC lineand a signal wirearound an annular toroidal core, which is to be fitted on a tubular partof the connector device. Cutouts for housing the AC lineand the signal wirewound around the toroidal coreare formed in the tubular partof the connector device. Further, a coilis connected to the AC line, a capacitoris connected to an AC line, and the coiland the capacitorare connected to each other with a wireprovided along the AC linesand, whereby a filter circuit is formed.

Growing community of inventors

Aichi, Japan

Hiroya Andoh