CONTROL DEVICE FOR VEHICLES

• US 20100114422A1
• Filed: 04/17/2008
• Published: 05/06/2010
• Est. Priority Date: 04/20/2007
• Status: Abandoned Application

• Current Assignee: Autoliv Development AB (Autoliv Incorporated)
• Original Assignee: Autoliv Development AB (Autoliv Incorporated)
• Inventors: Weichenberger, Lothar
• Application Number:
  US12/596,697
• Publication Number:
  US 20100114422A1
• Time in Patent Office: Days
• US Class Current: 701/29
• CPC Class Codes: B60R 2021/01054 Bus
• CPC Class Codes: B60R 2021/01102 Transmission method
• CPC Class Codes: B60R 2021/01184 Fault detection or diagnostic circuits
• CPC Class Codes: B60R 2021/01259 Brakes
• CPC Class Codes: B60R 21/013 including means for detecting collisions, impending collisions or roll-over
• CPC Class Codes: G05B 9/03 with multiple-channel loop, i.e. redundant control systems

Abstract

The present invention relates to a control device for vehicles, in particular for the control of vehicle safety devices, with at least two control means, which each communicate with at least one common operating means, wherein the control means are connected to a monitoring means, which monitors the communication of each control means with the common operating means and with an operating means which is directly connected to another control means.

Claims

1. A safety device for control of vehicle safety devices of a vehicle, the safety device comprising:

at least two control means which each communicate with at least one common operating means for the control of the vehicle safety devices, wherein

the at least two control means are each directly connected to a corresponding second operating means, and the at least two control means are connected to a monitoring means, which monitors the communication of each of the at least two control means with the common operating means and with the corresponding second operating means.

2. The safety device according to claim 1, wherein the second operating means are arithmetic-logic units, registers, logic components, memories or peripheral devices.

3. The safety device according to claim 1, wherein the monitoring means contains a rule-set by means of which it is possible to distinguish between intentional and unintentional influencing of the communication.

4. The safety device according to claim 3, wherein the monitoring means can transfer the system to be controlled into a safe state when a rule of the rule-set is broken.

5. The safety device according to claim 1, wherein the monitoring means is designed at least partially as hardware.

6. The safety device according to claim 1, wherein the monitoring means monitors the second operating means as at least one of actual operating means and virtual operating means, wherein monitoring of the second operating means as the virtual operating means is after virtualization of the second operating means.

7. The safety device according to claim 1, wherein the monitoring means is implemented in separate hardware.

8. The safety device according to claim 6, wherein the virtual operating means are implemented in separate hardware.

9. The safety device according to claim 6, wherein the monitoring means safeguards the change of state of at least one of the actual and the virtual operating means brought about by a first control means when the communication is changed to another control means and restores the same when the communication from the another control means is changed back to the communication with the first control means.

10. The safety device according to claim 1, wherein each of the at least two control means communicates with the corresponding second operating means without monitoring by the monitoring means.

11. The safety device according to claim 1, wherein the monitoring means restricts or prevents the communication between one of the at least two control means and the corresponding second operating means which is directly connected to the other of the at least two control means.

12. The safety device according to claim 1, wherein the control means are processors.

13. The safety device according to claim 1, wherein the control means are microcontrollers or microcomputers.

14. The safety device according to claim 1, wherein the operating means are memory areas or peripheral devices.

15. The safety device according to claim 1, wherein one of the at least two control means and one or more of the second operating means directly connected thereto form a virtual operating means, wherein the monitoring means permits a communication of the other of the at least two control means with only the virtual operating means.

16. The safety device according claim 15, wherein the virtual operating means is implemented by software.