Control device

• US 20050154475A1
• Filed: 10/18/2002
• Published: 07/14/2005
• Est. Priority Date: 12/04/2001
• Status: Abandoned Application

• Current Assignee: Daimler AG (Mercedes-Benz Group AG)
• Original Assignee: Daimler AG (Mercedes-Benz Group AG)
• Inventors: Forchert, Thomas, Vieweger, Wolfgang, Luka, Juergen
• Application Number:
  US10/497,604
• Publication Number:
  US 20050154475A1
• Time in Patent Office: Days
• US Class Current: 700/20
• CPC Class Codes: G06F 15/7867 with reconfigurable architecture

Abstract

A control device for controlling a system having a processor for executing control programs, memory means for storing data and control programs, and interface modules which can be used to transfer control instructions to actuators or to further control devices is connected to other control devices by means of a data bus. The control device includes a plurality of cells of the same type, each of which has a piece of reconfigurable hardware and peripheral modules. These cells can be reconfigured by configuration data, so that hardware connections for each cell can be adjusted to adapt to a desired control process. One or more cells together form a processor and/or interface modules.

Claims

1-9. -9. (canceled)

10. A control device for controlling a system having a plurality of control units that are networked via a first data bus, each control unit having a processor for executing control programs, at least one memory unit for storing data and control programs, and an interface module which can be used to transfer the control instructions to actuators or to the further control units, wherein:

at least one of the control units includes a plurality of cells of the same type which cells are in the form of separate electronic elements having cell communication units;

the plurality of similar cells are networked to one another by a second, internal, data bus in the control device;

each cell has a piece of reconfigurable hardware with a multiplicity of networked memory cells that can be connected to one another in different ways by means of variably switchable connecting lines, and a cell communication unit;

the reconfigurable hardware in each cell can be reconfigured by configuration data, so that hardware connections of each cell can be adjusted to perform a particular desired control process;

a number of said cells together form a processor or peripheral modules in a control unit; and

further cells can be interfaced or retrospectively configured using an interface, in order to increase the processing power of the control unit.

12. The control device as claimed in claim 10, wherein the control device has a fixed number of cells;

and

the configuration data allow a subset of said cells to be selected and connected as appropriate for handling the particular control process.

14. The control device as claimed in claim 10, wherein the configuration data have a hardware description language which describes a configuration option for the reconfigurable hardware, and which can be downloaded via an interface onto the device for control.

16. The control device as claimed in claim 10, wherein:

said memory units can store a plurality of configuration data records; and

the reconfigurable hardware can be configured on the basis of the particular control process.

18. The control device as claimed in claim 10, wherein at least one of the cells is configurable to perform computation functions of a microcontroller, whereby the device can replace the microcontroller in a control unit.

20. The control device as claimed in claim 10, wherein an occurrence of a higher processing requirement prompts at least one cell to be added or activated so that it can execute additional processing tasks.

22. The control device as claimed in claim 10, wherein the device can be configured to accord with an existing control unit by downloading a hardware description language, whereby the device can be used as a replacement control unit.

24. The control device as claimed in claim 10, wherein the second data bus is an optical data bus.

11. A control device for controlling a system having a plurality of control units that are networked via a first data bus, each control unit having a processor for executing control programs, at least one memory unit for storing data and control programs, and an interface module which can be used to transfer the control instructions to actuators or to the further control units, wherein:

at least one of the control units includes a plurality of cells of the same type which cells are in the form of separate electronic elements having cell communication units;

the plurality of similar cells are networked to one another by a second, internal, data bus in the control device;

each cell has a piece of reconfigurable hardware with a multiplicity of networked memory cells that can be connected to one another in different ways by means of variably switchable connecting lines, and a cell communication unit;

the reconfigurable hardware in each cell can be reconfigured by configuration data, so that hardware connections of each cell can be adjusted to perform a particular desired control process;

a number of said cells together form a processor or peripheral modules in a control unit; and

the cells are configurable by downloading a hardware description language, with each cell simulating a subfunction of a conventional microcontroller in a control unit.

13. The control device as claimed in claim 11, wherein:

the control device has a fixed number of cells; and

the configuration data allow a subset of said cells to be selected and connected as appropriate for handling the particular control process.

15. The control device as claimed in claim 11, wherein the configuration data have a hardware description language which describes a configuration option for the reconfigurable hardware, and which can be downloaded via an interface onto the device for control.

17. The control device as claimed in claim 11, wherein:

said memory units can store a plurality of configuration data records; and

the reconfigurable hardware can be configured on the basis of the particular control process.

19. The control device as claimed in claim 11, wherein at least one of the cells is configurable to perform computation functions of a microcontroller, whereby the device can replace the microcontroller in a control unit.

21. The control device as claimed in claim 11, wherein an occurrence of a higher processing requirement prompts at least one cell to be added or activated so that it can execute additional processing tasks.

23. The control device as claimed in claim 11, wherein the device can be configured to accord with an existing control unit by downloading a hardware description language, whereby the device can be used as a replacement control unit.

25. The control device as claimed in claim 11, wherein the second data bus is an optical data bus.