System and method for predictive management of energy supply to a transport device

• US 7,880,436 B2
• Filed: 06/07/2005
• Issued: 02/01/2011
• Est. Priority Date: 06/11/2004
• Status: Active Grant

• Current Assignee: Siemens AG
• Original Assignee: Siemens AG
• Inventors: Fischer, Gerhard, Holland, Maarten
• Primary Examiner(s): Tso; Edward
• Assistant Examiner(s): WILLIAMS, ARUN C
• Application Number:
  US11/570,385
• Publication Number:
  US 20080246436A1
• Time in Patent Office: 2,065 Days
• Field of Search: 320/124
• US Class Current: 320/124
• CPC Class Codes: B60K 6/46 Series type
• 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 20/11 using model predictive control [MPC] strategies, i.e. control methods based on models predicting performance utilising navigation and traffic information in the control strategy B60W20/12
• CPC Class Codes: B60W 2510/244 Charge state
• CPC Class Codes: B60W 2552/20 Road profile, i.e. the change in elevation or curvature of a plurality of continuous road segments
• CPC Class Codes: B60W 50/0097 Predicting future conditions
• CPC Class Codes: Y02T 10/40 Engine management systems
• CPC Class Codes: Y02T 10/62 Hybrid vehicles
• CPC Class Codes: Y02T 10/84 Data processing systems or methods, management, administration

Abstract

An energy management system for a transport device, in particular for a motor vehicle running on fuel and electricity, includes an energy source, an intermediate energy store and an electric energy consumer, in particular an electric drive. Control and/or regulation of the provision of energy, which is dependent on information relating to future energy requirements and supplied by means of at least one part of the transport device, can be carried out by the energy management system by means of the intermediate energy store and/or the energy requirements.

Claims

1. A method for operating a transport device having a primary energy source, an energy management system and at least one electronic energy consumer, said method comprising the steps of:

producing a first item of information regarding a future energy requirement of at least part of the transport device using an item of information regarding at least one transport measure to be carried out, said future energy requirement including at least one peak load;

providing the first item of information to the energy management system;

changing a sequence of transport measures provided by the transport device using the first item of information, so that storage and use of energy by the transport device is managed using the first item of information;

comparing the future peak load to a maximum possible peak load;

managing a relationship between energy consumption by the transport device and maximum possible peak load so that the future peak load does not exceed the maximum possible peak load; and

producing a second item of information regarding the future energy requirement of at least part of the transport device.

2. The method of claim 1, wherein the first item of information is supplied by the energy management system.

3. The method of claim 1, wherein the energy management system manages the energy used by the transport device using fuzzy logic.

4. The method of claim 3, wherein the first item of information includes a load prognosis based on past usage data.

5. The method of claim 1, further comprising the step of optimizing the energy consumption of a plurality of transport devices.

6. The method of claim 1, further comprising the step of temporarily switching off the primary energy source.

7. The method of claim 1, further comprising the steps of changing future planned operating states of the transport device based on the first item of information.

8. The method of claim 1, wherein the sequence of transport measures is changed by changing the provision of energy by an energy buffer store as a function of the first item of information, or by changing energy consumption by the energy consumer as a function of the first item of information.

9. The method of claim 1, further comprising the step of changing the sequence of transport measures provided by the transport device using the item of information, so that storage and use of energy by the transport device is managed using the second item of information regarding the future energy requirement.

10. The method of claim 1, wherein at least one of the first or second item of information is generated or stored by the energy management system.

11. The method of claim 1, further comprising the step of modifying the energy consumption of the transport device by modifying the at least one transport measure so that the future peak load determined for the modified transport measure does not exceed the maximum possible peak load.

12. The method of claim 1, further comprising the step of increasing the maximum possible peak load by increasing the energy fed into an energy buffer store so that the future peak load does not exceed the maximum peak load.

13. A transport device, comprising:

a primary energy source;

at least one electronic energy consumer; and

an energy management system, said energy management system including;

means for producing a first item of information regarding a future energy requirement of at least part of the transport device using an item of information regarding at least one transport measure to be carried out, said future energy requirement including at least one peak load;

means for providing the first item of information to the energy management system;

means for changing a sequence of transport measures provided by the transport device using the first item of information, so that storage and use of energy by the transport device is managed using the first item of information;

means for comparing the future peak load to a maximum possible peak load;

means for managing a relationship between energy consumption by the transport device and maximum possible peak load so that the future peak load does not exceed the maximum possible peak load; and

means for producing a second item of information regarding the future energy requirement of at least part of the transport device.

14. The transport device of claim 13, further comprising means for energy recovery, said means for changing the sequence of transport measures provided by the transport device being adapted to modify the energy recovery provided by said means for energy recovery.

15. The transport device of claim 14, wherein said means for energy recovery includes an energy buffer store.

16. The transport device of claim 13, further comprising an automated guided vehicle for transporting goods or people.

17. The transport device of claim 13, wherein at least one electronic energy consumer is an electrical drive.

18. The transport device of claim 13, wherein the sequence of transport measures is changed by changing the provision of energy by an energy buffer store as a function of the first item of information.

19. The device of claim 13, wherein the sequence of transport measures is changed by changing energy consumption by the energy consumer as a function of the first item of information.

20. The device of claim 13, further comprising the step of modifying the energy consumption of the transport device by modifying the transport measure so that the future peak load determined for the modified transport measure does not exceed the maximum possible peak load.

21. The device of claim 13 further comprising the step of increasing the maximum possible peak load by increasing the energy fed into an energy buffer store so that the future peak load does not exceed the maximum peak load.