Method for transmitting data among components of the system electronics of mobile systems, and such components

• US 20030194088A1
• Filed: 03/27/2003
• Published: 10/16/2003
• Est. Priority Date: 03/27/2002
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Kunz, Joachim, Fischer, Werner
• Granted Patent: US 8,166,303 B2
• Time in Patent Office: Days
• US Class Current: 380/270
• CPC Class Codes: F02D 2041/285 the sensor having a signal processing unit external to the engine control unit
• CPC Class Codes: F02D 41/22 Safety or indicating devices for abnormal conditions in air/fuel ratio feedback systems F02D41/1495, in electric control linkage F02D11/107, in purge control systems F02M25/0809
• CPC Class Codes: F02D 41/28 Interface circuits
• CPC Class Codes: H04K 1/00 Secret communication
• CPC Class Codes: Y02T 10/40 Engine management systems

Abstract

A method for transmitting data among components of the system electronics of mobile systems, where, to increase the security of the information exchange, it is proposed to encrypt the data to be transmitted. To this end, devices for encrypting and/or decrypting data to be transmitted or received are provided in the relevant system electronics components.

Claims

1. A method for transmitting data among components of a system electronics of a mobile system, comprising:

encrypting the data to be transmitted by a transmitting component in real time; and

decrypting the data by a receiving component in real time.

2. The method as recited in claim 1, further comprising:

encoding the data by a key used by the transmitting component; and

decoding the data by a key used by the receiving component.

3. The method as recited in claim 1, further comprising:

examining the transmitted data for authenticity on the basis of at least one of an encryption algorithm and one of a signature and a component identifier.

4. The method as recited in claim 3, wherein:

the data obtains one of a signature and an identifier of the corresponding system electronics component.

5. The method as recited in claim 3, wherein:

if an examination of an authenticity of the transmitted data turns out to be negative, at least one of;

suitable replacement data is used in place of the transmitted data, and appropriate information is displayed.

6. The method as recited in claim 1, further comprising:

selecting an asymmetrical key for the transmission of data relevant to security.

7. A system electronics component of a mobile system, comprising:

a device for transmitting/receiving data; and

an additional device for encrypting/decrypting the data in real time.

8. The system electronics component as recited in claim 7, wherein:

the mobile system includes one of a sensor, a control unit, and an actuator.

9. The system electronics component as recited in claim 7, wherein:

the additional device is equipped for examining an authenticity of the transmitted data.

10. The system electronics component as recited in claim 7, wherein:

the additional device transmits an identifier of the corresponding system electronics component, together with the data.

11. The system electronics component as recited in claim 10, wherein:

if an examination of an authenticity of the transmitted data turns out to be negative, at least one of;

suitable replacement data is used in place of the transmitted data, and appropriate information is displayed.

12. A memory for storing a computer program for causing a transmission of data among components of a system electronics of a mobile system, an execution of the computer program resulting in a performance of:

encrypting the data to be transmitted by a transmitting component in real time; and

decrypting the data by a receiving component in real time.

13. A motor vehicle, comprising:

a system electronics component including;

a device for transmitting/receiving data; and

an additional device for encrypting/decrypting the data in real time.

14. An aircraft, comprising:

a system electronics component including;

a device for transmitting/receiving data; and

an additional device for encrypting/decrypting the data in real time.