Modularized hybrid power train control

• US 8,639,403 B2
• Filed: 12/29/2010
• Issued: 01/28/2014
• Est. Priority Date: 12/29/2010
• Status: Active Grant

• Current Assignee: Cummins Incorporated
• Original Assignee: Cummins Incorporated
• Inventors: Books, Martin T., Schwab, Zachary, Sujan, Vivek Anand, Muralidhar, Praveen
• Primary Examiner(s): Beaulieu, Yonel
• Application Number:
  US12/981,104
• Publication Number:
  US 20120173058A1
• Time in Patent Office: 1,126 Days
• Field of Search: 701/22, 180/65.265, 903/930
• US Class Current: 701/22
• CPC Class Codes: B60L 15/20 for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
• CPC Class Codes: B60L 2200/36 Vehicles designed to transport cargo, e.g. trucks
• CPC Class Codes: B60L 2240/12 Speed
• CPC Class Codes: B60L 2240/421 Speed
• CPC Class Codes: B60L 2240/423 Torque
• CPC Class Codes: B60L 2240/441 Speed
• CPC Class Codes: B60L 2240/443 Torque
• CPC Class Codes: B60L 2240/622 by satellite navigation
• CPC Class Codes: B60L 2250/26 by pedal actuation
• CPC Class Codes: B60L 50/16 with provision for separate direct mechanical propulsion
• CPC Class Codes: B60L 50/40 using propulsion power supplied by capacitors
• CPC Class Codes: B60L 58/12 responding to state of charge [SoC]
• CPC Class Codes: B60W 10/06 including control of combustion engines
• CPC Class Codes: B60W 20/00 Control systems specially adapted for hybrid vehicles hybrid vehicle design, B60K6/00; electric vehicles B60L
• CPC Class Codes: B60W 2050/0006 Digital architecture hierarchy
• CPC Class Codes: B60W 2050/0045 using databus protocols
• CPC Class Codes: B60W 50/00 Details of control systems for road vehicle drive control not related to the control of a particular sub-unit , e.g. process diagnostic or vehicle driver interfaces
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/72 Electric energy management in electromobility
• CPC Class Codes: Y02T 90/16 Information or communication technologies improving the operation of electric vehicles

Abstract

A method includes manufacturing a first assembly having an application requirements module that interprets a contemporaneous performance specification, and an energy partitioning module that provides an electric motor torque target, a battery power flux target, and an internal combustion engine torque target. The method further includes manufacturing a second assembly having an engine control module that controls an internal combustion engine in response to the internal combustion engine torque target. The method includes integrating the first assembly and the second assembly with a third assembly to form a completed hybrid power train, where the third assembly includes a datalink that receives the internal combustion engine torque target from the first assembly and provides the internal combustion engine torque target to the second assembly.

Claims

1. A system, comprising:

an application requirements module structured to interpret a contemporaneous performance specification;

an energy partitioning module structured to provide a plurality of energy flux commands in response to the contemporaneous performance specification, wherein a first one of the energy flux commands comprises an internal combustion engine torque target;

an engine control module structured to control an internal combustion engine in response to the internal combustion engine torque target;

a datalink positioned in only one location selected from;

interposed between the application requirements module and the energy partitioning module; and

interposed between the energy partitioning module and the engine control module.

2. The system of claim 1, wherein the datalink is interposed between the application requirements module and the energy partitioning module, wherein the contemporaneous performance specification passes to the energy partitioning module over the datalink.

3. The system of claim 1, wherein the datalink is interposed between the energy partitioning module and the engine control module, wherein the internal combustion engine torque target passes to the engine control module over the datalink.

4. The system of claim 1, wherein the application requirements module is positioned on a first electronic controller, wherein the energy partitioning module and the engine control module are positioned on a second electronic controller, and wherein the datalink comprises a controller-area network.

5. The system of claim 4, further comprising a first assembly including the first electronic controller positioned at a first manufacturing facility, a second assembly including the second electronic controller positioned at a second manufacturing facility, and a third assembly structured to receive the first assembly and the second assembly to form a completed hybrid power train, the third assembly positioned at a third manufacturing facility.

6. The system of claim 1, wherein the application requirements module and the energy partitioning module are positioned on a first electronic controller, and wherein the engine control module is positioned on a second electronic controller, and wherein the datalink comprises a controller-area network.

7. The system of claim 6, further comprising a first assembly including the first electronic controller positioned at a first manufacturing facility, a second assembly including the second electronic controller positioned at a second manufacturing facility, and a third assembly structured to receive the first assembly and the second assembly to form a completed hybrid power train, the third assembly positioned at a third manufacturing facility.

8. The system of claim 1, wherein the contemporaneous performance specification is updated at a rate greater than or equal to 50 Hz, and wherein the datalink is asynchronous.

9. The system of claim 1, wherein at least one of the contemporaneous performance specification and the energy flux commands are updated at a rate greater than or equal to 50 Hz, and wherein the datalink is asynchronous.

10. The system of claim 1, wherein a second one of the energy flux commands is an electric motor torque target, the system further comprising an electric motor responsive to the electric motor torque target.

11. The system of claim 10, wherein the energy flux commands further comprise at least one command selected from the commands consisting of:

a battery storage target, an electric generator torque target, and an accessory energy transfer target.

12. A system, comprising:

a primary electronic controller in communication with an external electronic controller over a datalink, wherein the external electronic controller provides a supplementary control command to the datalink; and

wherein the primary electronic controller comprises;

an application requirements module structured to interpret a contemporaneous performance specification;

an energy partitioning module structured to provide a plurality of energy flux commands in response to the contemporaneous performance specification, wherein a first one of the energy flux commands comprises an internal combustion engine torque target;

a supplementary control module structured to interpret the supplementary control command and to adjust at least one of the contemporaneous performance specification and the energy flux commands in response to the supplementary control command; and

an engine control module structured to control an internal combustion engine in response to the internal combustion engine torque target.

13. The system of claim 12, wherein the datalink is an asynchronous datalink.

14. The system of claim 13, wherein at least one of the energy flux commands, the contemporaneous performance specification, and the supplementary control command is updated at a rate greater than or equal to 50 Hz.

15. The system of claim 12, wherein the external electronic controller comprises a transmission controller.

16. The system of claim 12, wherein the external electronic controller comprises at least one controller selected from the controllers consisting of:

a pump controller, a brake controller, a collision avoidance controller, and a power take-off device controller.

17. A method, comprising:

interpreting a contemporaneous performance specification for a hybrid power train;

providing a plurality of energy flux commands in response to the contemporaneous performance specification, wherein a first one of the energy flux commands comprises an internal combustion engine torque target;

controlling an internal combustion engine in response to the internal combustion engine torque target; and

communicating only one of the contemporaneous performance specification and the internal combustion engine torque target over a datalink.

18. The method of claim 17, wherein the plurality of energy flux commands further comprise an electric motor torque target and a battery power flux target, the method further comprising controlling an electric system in response to the electric motor torque target and the battery power flux target, wherein the electric motor torque target and the battery power flux target are not communicated over the datalink.

19. The method of claim 17, wherein interpreting the contemporaneous performance specification comprises determining a torque output requirement for the hybrid power train.

20. The method of claim 19, wherein the torque output requirement comprises an operator torque demand.

21. The method of claim 17, wherein the communicating comprises providing an asynchronous message to the datalink.

22. A method, comprising:

manufacturing a first assembly including;

an application requirements module structured to interpret a contemporaneous performance specification; and

an energy partitioning module structured to provide an electric motor torque target, a battery power flux target, and an internal combustion engine torque target;

manufacturing a second assembly including an engine control module structured to control an internal combustion engine in response to the internal combustion engine torque target;

integrating the first assembly and the second assembly with a third assembly to form a completed hybrid power train, the third assembly including a datalink structured to receive the internal combustion engine torque target from the first assembly and to provide the internal combustion engine torque target to the second assembly.

23. The method of claim 22, wherein the completed hybrid power train includes an electric motor and the internal combustion engine, the method further comprising operating the electric motor in response to the electric motor torque target and operating the internal combustion engine in response to the internal combustion engine torque target.

24. The method of claim 23, wherein the datalink comprises an asynchronous datalink.

25. The method of claim 22, wherein the completed hybrid power train includes an electric motor/generator and the internal combustion engine, the method further comprising operating the electric motor/generator in response to the electric motor torque target and the battery power flux target, and operating the internal combustion engine in response to the internal combustion engine torque target.

26. A system, comprising:

a powertrain controller structured to interpret a torque output requirement for a hybrid power train system;

a hybrid controller structured to determine an energy flux partition for an internal combustion engine and one of an electric motor and an electric motor/generator in response to the torque output requirement;

an engine controller structured to control an engine in response to the energy flux partition for the internal combustion engine; and

wherein the hybrid controller is included within a single computing device with only one of the powertrain controller and the engine controller.

27. The system of claim 26, wherein the hybrid controller communicates with the one of the powertrain controller and the engine controller that is not within the single computing device over an asynchronous datalink.

28. The system of claim 26, wherein a serial execution cycle including operations of the powertrain controller, the hybrid controller, and the engine controller includes only one asynchronous datalink communication.