Vehicle control system and authentication method

• US 8,589,686 B2
• Filed: 07/06/2012
• Issued: 11/19/2013
• Est. Priority Date: 07/07/2011
• Status: Active Grant

• Current Assignee: Omron Automotive Electronics Company Limited (Nidec Corporation)
• Original Assignee: Omron Automotive Electronics Company Limited (Nidec Corporation)
• Inventors: Suzuki, Takayuki, Kawashima, Hidemitsu
• Primary Examiner(s): Barron, Jr., Gilberto
• Assistant Examiner(s): Okeke, Izunna
• Application Number:
  US13/543,490
• Publication Number:
  US 20130014213A1
• Time in Patent Office: 501 Days
• Field of Search: None
• US Class Current: 713/168
• CPC Class Codes: B60R 16/02 electric constitutive elements
• CPC Class Codes: H04B 7/0825 with main and with auxiliary or diversity antennas
• CPC Class Codes: H04L 63/0853 using an additional device, e.g. smartcard, SIM or a different communication terminal cryptographic mechanisms or cryptographic arrangements for entity authentication involving additional secure or trusted devices H04L9/3234
• CPC Class Codes: H04W 12/06 Authentication

Abstract

A vehicle control system has a plurality of electronic control devices that are included in a vehicle, a radio wave transmitting body that transmits operation information operating a device included in the vehicle and unique radio-wave-transmitting-body identification information using a radio signal, a first electronic control device that transmits and receive the radio signal to and from a second electronic control device and the radio wave transmitting body, and the second electronic control device that transmits and receive the radio signal to and from the first electronic control device and the radio wave transmitting body. The first electronic control device includes a first storage in which the radio-wave-transmitting-body identification information on the radio wave transmitting body or identification information on the second electronic control device is stored, and a first transmitting/receiving unit that transmits and receives the radio signal.

Claims

1. A vehicle control system comprising:

a plurality of electronic control devices that are included in a vehicle;

a radio wave transmitting body that transmits operation information operating a device included in the vehicle and unique radio-wave-transmitting-body identification information using a radio signal;

a plurality of first electronic control devices that transmit and receive the radio signal to and from a second electronic control device and the radio wave transmitting body; and

the second electronic control device that transmits and receives the radio signal to and from the plurality of first electronic control devices and the radio wave transmitting body,

wherein each of the plurality of first electronic control devices includes;

a first storage in which the radio-wave-transmitting-body identification information on the radio wave transmitting body or identification information on the second electronic control device is stored;

a first transmitting/receiving unit that transmits and receives the radio signal;

an authentication information generator that authenticates the radio signal received by the first transmitting/receiving unit based on the identification information stored in the first storage, and generates successful authentication information when the radio wave transmitting body is successfully authenticated; and

an information transmitting unit that wirelessly transmits the successful authentication information generated by the authentication information generator and the operation information received by the first transmitting/receiving unit to the second electronic control device from the first transmitting/receiving unit,

wherein the second electronic control device includes;

a second storage in which the radio-wave-transmitting-body identification information on the radio wave transmitting body or identification information on the plurality of first electronic control devices is stored;

a second transmitting/receiving unit that transmits and receives the radio signal;

an authentication unit that authenticates the radio signal received by the second transmitting/receiving unit is the signal from the radio wave transmitting body or the signal from the plurality of first electronic control devices based on the identification information stored in the second storage;

a first information acquisition unit that acquires the operation information from the radio signal received by the second transmitting/receiving unit when the authentication unit authenticates that the radio signal is the signal from the radio wave transmitting body;

a second information acquisition unit that checks whether the successful authentication information is included in the radio signal received by the second transmitting/receiving unit when the authentication unit authenticates that the radio signal is the signal from the plurality of first electronic control devices, and acquires the operation information from the radio signal received by the second transmitting/receiving unit when the successful authentication information is included; and

a controller that controls the device of the vehicle based on the operation information acquired by the first information acquisition unit or the second information acquisition unit,

wherein the controller controls the device of the vehicle based on the operation information when the second information acquisition unit acquires the successful authentication information from at least two of the plurality of first electronic control devices within a predetermined time.

2. A method for authenticating a radio wave transmitting body that transmits operation information operating a device of a vehicle and unique radio-wave-transmitting-body identification information using a radio signal in the vehicle including a plurality of electronic control devices that conduct radio communication with each other,

wherein the vehicle includes:

a plurality of first electronic control devices in the plurality of electronic control devices; and

a second electronic control device that controls the device of the vehicle based on the operation information,

the method comprising;

performing authentication via the plurality of first electronic control devices based on the radio-wave-transmitting-body identification information previously stored in the plurality of first electronic control devices and the radio-wave-transmitting-body identification information transmitted by the radio wave transmitting body,

generating via the plurality of first electronic control devices successful authentication information;

transmitting via the plurality of first electronic control devices the successful authentication information to the second electronic control device;

trying the authentication via the second electronic control device based on the radio-wave-transmitting-body identification information previously stored in the second electronic control device and the radio-wave-transmitting-body identification information transmitted by the radio wave transmitting body; and

determining via the second electronic control device that the authentication of the radio wave transmitting body is completed when authenticating that the signal is the signal from the radio wave transmitting body or when receiving the successful authentication information transmitted by the plurality of first electronic control devices,

wherein the second electronic control device determines that the authentication of the radio wave transmitting body is completed when at least the two pieces of successful authentication information transmitted by the plurality of first electronic control devices are received within a predetermined time.