VEHICLE-ORIENTED SERVICE PROVIDING SYSTEM, IN-VEHICLE DEVICE, AND COMMAND TRANSMISSION METHOD

• US 20190327212A1
• Filed: 04/16/2019
• Published: 10/24/2019
• Est. Priority Date: 04/18/2018
• Status: Active Grant

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Nakagawa, Masashi
• Granted Patent: US 11,218,456 B2
• Time in Patent Office: Days
• CPC Class Codes: H04L 63/0428 wherein the data content is protected, e.g. by encrypting or encapsulating the payload
• CPC Class Codes: H04L 63/105 Multiple levels of security
• CPC Class Codes: H04L 63/20 for managing network security; network security policies in general filtering policies H04L63/0227
• CPC Class Codes: H04L 67/12 specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
• CPC Class Codes: H04L 67/55 Push-based network services

Abstract

A vehicle-oriented service providing system includes an in-vehicle device and configured to receive commands applied to a control device inside the vehicle, a vehicle information server configured to transmit the commands to the in-vehicle device, and a push information server configured to mediate the transmission of the commands from the vehicle information server to the in-vehicle device. In the commands, a security level prescribed in advance for each of the commands is set. The vehicle information server performs encryption corresponding to the security level on the commands, and requests the push information server for transmission. The in-vehicle device is configured to wait for commands from the push information server. The in-vehicle device is configured to decrypt the received encrypted commands, and solely when encryption corresponding to a security level equal to or higher than the security level set in advance in the commands is performed, execute the commands.

Claims

1. A vehicle-oriented service providing system comprising:

an in-vehicle device mounted in a vehicle and configured to receive commands that are applied to a control device inside the vehicle;

a vehicle information server configured to transmit the commands to the in-vehicle device; and

a push information server configured to mediate the transmission of the commands from the vehicle information server to the in-vehicle device,

wherein the in-vehicle device, the vehicle information server, and the push information server are connected to a communication network,

wherein, in the commands, a security level prescribed in advance for each of the commands is set,

wherein the vehicle information server is configured to perform encryption corresponding to the security level on the commands and request the push information server for transmission of the encrypted commands, and

wherein the in-vehicle device is configured to

wait for commands from the push information server so as to receive the encrypted commands solely from the push information server,

receive the encrypted commands from the vehicle information server by way of the push information server,

decrypt the received encrypted commands, and

solely when encryption corresponding to a security level equal to or higher than the security level set in advance in the commands is performed, execute the commands.

2. The vehicle-oriented service providing system according to claim 1, wherein the vehicle information server is configured to generate the commands based on a predetermined condition without receiving a request from the in-vehicle device and transmit the commands to the in-vehicle device.

3. The vehicle-oriented service providing system according to claim 1, wherein the in-vehicle device includes:

a first processing unit configured to perform the reception, the decryption, and the execution of the commands; and

a second processing unit configured to perform solely communication that is not applied to the control device inside the vehicle with the vehicle information server or another server.

5. The vehicle-oriented service providing system according to claim 1, wherein:

the in-vehicle device is configured to transmit a request that is applied to the control device inside the vehicle to the vehicle information server; and

the vehicle information server is configured to, when the request is received from the in-vehicle device, transmit the command corresponding to the request to the in-vehicle device.

7. The vehicle-oriented service providing system according to claim 1, wherein the vehicle information server is configured to:

transmit a plurality of the commands as one transmission unit to the in-vehicle device; and

perform encryption corresponding to a security level of a command having a highest security level among the commands included in the transmission unit on the transmission unit.

4. The vehicle-oriented service providing system according to claim I, wherein the security level is divided into two or more levels.

6. The vehicle-oriented service providing system according to claim I, further comprising a portable terminal configured to transmit a request that is applied to the control device inside the vehicle to the vehicle information server,

wherein the vehicle information server is configured to, when the request is received from the in-vehicle device, transmit the command corresponding to the request to the in-vehicle device.

8. An in-vehicle device mounted in a vehicle, the in-vehicle device comprising a first processing unit configured to receive commands that are generated by an external vehicle information server, are applied to a control device inside the vehicle, and are subjected to encryption corresponding to a security level, wherein:

in the commands, the security level is prescribed in advance for each of the commands;

the first processing unit includes

a push waiting unit configured to wait for commands from a push information server connected through a communication network and receive the encrypted commands from the vehicle information server by way of the push information server,

a decryption unit configured to decrypt the received encrypted commands,

a security determination unit configured to, solely when encryption corresponding to a security level equal to or higher than the security level set in advance in the commands is performed, determine that the commands are executable, and

a command execution unit configured to execute the commands determined to be executable; and

the first processing unit is configured to receive the encrypted commands solely from the push information server.

9. The in-vehicle device according to claim 8, further comprising a second processing unit configured to perform solely communication that is not applied to a control device inside the vehicle with the vehicle information server or another server.

10. A command transmission method that, in a vehicle-oriented service providing system including an in-vehicle device, a vehicle information server, and a push information server connected to a communication network, performs command transmission from the vehicle information server to the in-vehicle device, the command transmission method comprising:

with the in-vehicle device, waiting for reception of commands that are applied to a control device inside a vehicle from the push information server;

with the vehicle information server, performing encryption corresponding to a security level prescribed in advance for each of the commands on the commands to be transmitted and requesting the push information server for transmission of the encrypted commands;

with the push information server, transmitting the encrypted commands to the in-vehicle device; and

with the in-vehicle device, decrypting the received encrypted commands, and solely when encryption corresponding to a security level equal to or higher than the security level set in advance in the commands is performed, executing the commands.