Patent ID: 9197290
Filing Date: 2015-11-24
Classification: B60L,H02J,H04B,Y02E,Y02T,Y04S

Abstract:
1. A communication system provided with an output circuit that is provided in an electricity supply apparatus supplying electricity to a vehicle and that outputs a rectangular wave signal of given frequency and with an input circuit that is provided in the vehicle and connected to the output circuit through a plurality of signal lines and that receives the rectangular wave signal outputted by the output circuit, whereby a communication signal is superimposed on the signal lines so that communication is achieved between the vehicle and the electricity supply apparatus, the communication system comprising: a first communication unit provided in the electricity supply apparatus and transmitting and receiving a communication signal via a first transformer connected between the signal lines; a second communication unit provided in the vehicle and transmitting and receiving a communication signal via a second transformer connected between the signal lines; a first lowpass filter interposed between the output circuit and the first transformer; and a second lowpass filter interposed between the input circuit and the second transformer, wherein