Vehicle heterogeneous communication system and communication method therefor

A vehicle heterogeneous communication method for controller area network (CAN) message transmission of a transceiving controller, the method comprising:

• generating, by a micro controller unit (MCU), a CAN message delivery Ethernet frame in which a start of stream delimiter (SSD) size is changed through media access control (MAC);
• delivering the CAN message delivery Ethernet frame to a physical layer (PHY) module through a CAN dedicated line added to a media independent interface (MII);
• checking, by the PHY module, an Ethernet frame received through the CAN dedicated line;
• recognizing the Ethernet frame as the CAN message delivery Ethernet frame;
• inserting, by the PHY module, four SSDs acquired by adding an SSD4 symbol into the CAN message delivery Ethernet frame;
• and
• transmitting the CAN message delivery Ethernet frame to a receiving side.

A vehicle heterogeneous communication method for CAN message reception of a transceiving controller, comprising:

• checking, by a physical layer (PHY) module, presence of a start of stream delimiter 4 (SSD4) symbol by checking a number of SSDs based on an Ethernet frame being received from a transmitting side;
• determining a corresponding Ethernet frame as a CAN message delivery Ethernet frame based on the number of SSDs being 4 and the SSD4 symbol being present;
• delivering the CAN message delivery Ethernet frame to an MCU through a controller area network (CAN) dedicated line added to a media independent interface (MII);
• performing, by the MCU, processing of the CAN message delivery Ethernet frame through media access control (MAC);
• and
• storing the CAN message delivery Ethernet frame in an internal CAN message storage memory.