Control device and method for the control of functions

• US 8,706,377 B2
• Filed: 07/27/2007
• Issued: 04/22/2014
• Est. Priority Date: 08/02/2006
• Status: Expired due to Fees

• Current Assignee: Veoneer Sweden AB (SSW Partners LP)
• Original Assignee: Autoliv AB (Autoliv Incorporated)
• Inventors: Weichenberger, Lothar, Obesser, Franz
• Primary Examiner(s): MANCHO, RONNIE M
• Application Number:
  US12/375,758
• Publication Number:
  US 20100023199A1
• Time in Patent Office: 2,461 Days
• Field of Search: 702/183, 137/85, 318/594, 318/602, 318/562, 709/250, 709/219, 701/49, 701/296, 701/33, 701/36, 701/29, 701/43, 701/62, 701/76, 701/92, 701/97, 701/107, 708/530, 340/507
• US Class Current: 701/76
• CPC Class Codes: B60R 16/0231 Circuits relating to the driving or the functioning of the vehicle monitoring tyres B60C23/00; indicating overspeed B60K31/00; for dash boards B60K37/00, B60Q3/10; for indicating emergencies B60Q1/52; brake control systems B60T; registering or indicating the working of vehicles G07C5/00; measuring distance G01C, e.g. combinations of speed and distance G01C23/00; engine indicators G01L; measuring speed or acceleration G01P

Abstract

A controller system in which a plurality different main functions are integrated includes a plurality of microcontrollers. Each of the microcontrollers is associated with one of the main functions. At least one monitoring unit is implemented for the plurality of the main functions, for example a brake monitor and a comfort monitor. When the at least one monitoring unit detects a defect of a main function in the controller, only the defective main function is deactivated.

Claims

1. A controller system in which a plurality of different main functions are integrated, comprising:

a plurality of microcontrollers, each of the microcontrollers being associated with controlling one of the main functions, at least one of the main functions being one of a vehicle comfort function and a vehicle safety function, and

at least one monitoring unit implemented for monitoring the plurality of different main functions, and, in the event of a detection of a defective main function among the plurality of different main functions in the controller system, the controller system being configured to deactivate only the defective main function.

2. A controller system in accordance with claim 1, wherein each one of the plurality of different main functions is monitored by one of the at least one monitoring unit arranged outside the microcontroller associated with the one of the plurality of different main functions.

3. A controller system in accordance with claim 2, wherein the microcontrollers mutually check the main functions of other microcontrollers, with the monitoring unit for checking the main function of one of the microcontrollers being arranged on a different microcontroller.

4. A controller system in accordance with claim 2, wherein at least one monitoring unit is located outside all of the microcontrollers.

5. A controller system in accordance with claim 1, wherein a diagnostic unit is provided which can carry out an error analysis and an error processing.

6. A controller system in accordance with claim 5, wherein the diagnostic unit is associated with the at least one monitoring unit.

7. A controller system in accordance with claim 6, wherein the diagnostic unit is associated with the microcontrollers of the main functions.

8. A controller system in accordance with claim 1, wherein a first main function relates to an area of active safety of a vehicle and a second main function relates to an area of the passive safety of the vehicle.

9. A controller system in accordance with claim 8, wherein the first function is related to braking or to driving stability;

and that the second function is related to a passenger protection device.

10. A controller in accordance with claim 1, wherein a plurality of functions from an area of active safety of a vehicle are integrated.

11. A controller in accordance with claim 1, wherein a plurality of functions from an area of passive safety of a vehicle are integrated.

12. A controller in accordance with claim 1, wherein at least one function from the area of telematics of a vehicle is integrated with at least one function from an area of passive safety or active safety of a vehicle.

13. A method of controlling a plurality of main functions in a controller system having a controller with a plurality of microcontrollers, each of the microcontrollers being associated with one of the main functions, and at least one monitoring unit implemented for the plurality of the main functions, the method comprising the steps of:

detecting a defective main function in the controller; and

deactivating only the defective main function.