Driving control system, control server, and vehicle

A driving control system comprising:

• a first transceiver configured to be provided in a vehicle and perform packet-switched communication and circuit-switched communication;
• an autonomous sensor configured to be provided in the vehicle and acquire first travel environment information;
• a first processor configured to be provided in the vehicle;
• a second transceiver configured to be provided in a control server and perform the packet-switched communication and the circuit-switched communication;
• and
• a second processor configured to be provided in the control server, wherein
• the first processor is configured to
• perform communication with outside by selectively using the packet-switched communication or the circuit-switched communication by the first transceiver, and
• make an autonomous travel control of the vehicle based on the first travel environment information, and
• the second processor is configured to
• perform communication with outside by selectively using the packet-switched communication or the circuit-switched communication by the second transceiver,
• acquire second travel environment information based on information collected by using the packet-switched communication,
• make a remote travel control of the vehicle based on the second travel environment information, and
• when recognizing a decline in a communication response rate with the vehicle or a communication abnormality while making the remote travel control by using the packet-switched communication, command, by using the circuit-switched communication, the vehicle to switch from the remote travel control to the autonomous travel control.

A control server configured to communicate with a vehicle, the vehicle comprising:

• a first communication controller configured to perform communication with outside by selectively using packet-switched communication and circuit-switched communication;
• a first travel environment information obtainer configured to acquire first travel environment information using an autonomous sensor;
• and
• a first travel controller configured to make an autonomous travel control of the vehicle based on the first travel environment information,
• the control server comprising:
• a second communication controller configured to perform communication with outside by selectively using the packet-switched communication or the circuit-switched communication;
• and
• a second travel environment information obtainer configured to acquire second travel environment information based on information collected by using the packet-switched communication;
• and
• a second travel controller configured to make a remote travel control of the vehicle based on the second travel environment information, wherein
• the second travel controller is configured to, when the second travel controller recognizes a decline in a communication response rate with the vehicle or a communication abnormality while making the remote travel control by using the packet-switched communication, command, by using the circuit-switched communication, the vehicle to switch from the remote travel control to the autonomous travel control.

A vehicle comprising:

• a communication controller configured to perform communication with a control server by selectively using packet-switched communication or circuit-switched communication;
• an autonomous sensor configured to acquire travel environment information;
• and
• a travel controller configured to make an autonomous travel control based on the travel environment information and a remote travel control based on a command from the control server, wherein
• the communication controller is configured to, while making the remote travel control by using the packet-switched communication,
• determine a communication state with the control server by the packet-switched communication, and
• when the communication state is in decline to a predetermined level, transmit, by using the circuit-switched communication, a signal indicating the decline in the communication state, to the control server, and receive a signal indicating a travel control switching command transmitted from the control server by using the circuit-switched communication in accordance with the decline in the communication state, and
• the travel controller is configured to switch from the remote travel control to the autonomous travel control based on the signal indicating the travel control switching command.