Intelligent sleep mode for machines with internal combustion engines

• US 7,171,300 B1
• Filed: 09/08/2005
• Issued: 01/30/2007
• Est. Priority Date: 09/08/2005
• Status: Active Grant

• Current Assignee: Deere & Company
• Original Assignee: Deere & Company
• Inventors: Anderson, Noel Wayne
• Primary Examiner(s): Dolinar; Andrew M.
• Application Number:
  US11/222,327
• Time in Patent Office: 509 Days
• Field of Search: None
• US Class Current: 701/112
• CPC Class Codes: F02D 41/042 for stopping the engine
• CPC Class Codes: F02N 11/0803 characterised by means for initiating engine start or stop F02N11/0814 takes precedence
• CPC Class Codes: F02N 11/0807 Remote means

Abstract

The present invention provides one or more methods of placing a machine with an internal combustion engine in an intelligent sleep mode. The system minimizes fuel costs and reduces wear for a machine using an internal combustion engine by monitoring various engine parameters to determine if during waiting or idle periods, it would be best to place the engine in a sleep mode. The system continues to monitor the machine while it is in sleep mode to determine if it is most advantageous, taking into consideration one or more factors, such as engine wear, fuel costs, duration of idle time, and the like, for the engine to remain in the current sleep mode, be shut down, be restarted, or in some instances, be placed in a different level of intelligent sleep mode.

Claims

1. An apparatus for monitoring and controlling engine operation to enhance engine efficiency comprising:

(a) an internal combustion engine;

(b) at least one sensor for monitoring one or more engine parameters; and

(c) an engine control unit configured to;

(i) receive information from the at least one sensor about the engine parameters,

(ii) perform at least a first computerized algorithm to determine whether, based at least in part on the information received from the at least one sensor, the engine should be placed in sleep mode,

(iii) continue to receive information from the at least one sensor about engine parameters after placing the engine in sleep mode,

(iv) perform at least a second computerized algorithm to determine whether, based at least in part on the information received from the at least one sensor, the engine should remain in sleep mode.

2. The apparatus of claim 1 wherein the engine control unit is further configured to receive information from at least one remote system.

3. The apparatus of claim 2 wherein the engine control unit uses the information received from the at least one remote system in at least the first computerized algorithm.

4. The apparatus of claim 2 wherein the engine control unit uses the information received from the at least one remote system in at least the second computerized algorithm to determine whether the engine should remain in sleep mode.

5. The apparatus of claim 1 wherein the engine control unit is further configured to receive information from at least one external source.

6. The apparatus of claim 5 wherein the engine control unit uses the information received from the at least one external source in at least the first computerized algorithm.

7. The apparatus of claim 5 wherein the engine control unit uses the information received from the at least one external source in at least the second computerized algorithm to determine whether the engine should remain in sleep mode.

8. The apparatus of claim 5 wherein the external source is an engine control unit of at least one other vehicle.

9. The apparatus of claim 5 wherein the external source is a vehicle operator.

10. The apparatus of claim 1 wherein the at least one engine parameter monitored is engine temperature.

11. The apparatus of claim 1 wherein the at least one engine parameter monitored is battery charge level.

12. The apparatus of claim 1 wherein the engine control unit is further capable of intelligent machine learning.

13. The apparatus of claim 1 wherein if the engine should not remain in sleep mode, the engine control unit shuts down the engine.

14. The apparatus of claim 1 wherein if the engine should not remain in intelligent sleep mode, the engine control unit sends a signal that the engine should be taken out of sleep mode.

15. A method of enhancing operating efficiency in an internal combustion engine comprising the steps of:

a) using at least one sensor to monitor at least one engine parameter;

b) using an engine control unit to collect data from the at least one sensor;

c) inputting the data collected from the at least one sensor into at least a first computerized algorithm to determine whether to place the engine in sleep mode;

d) having the engine control unit place the engine in sleep mode;

e) using the at least one sensor to monitor engine parameters after the engine has been placed in sleep mode; and

f) using at least a second computerized algorithm to analyze the data collected in step e to determine if the engine should remain in sleep mode.

16. The method of claim 15 further comprising the engine control unit communicating with an engine control unit of at least one other vehicle, wherein at least the first computerized algorithm uses the information received from the engine control unit of the at least one other vehicle to determine whether the engine of the first vehicle should be placed in sleep mode.

17. The method of claim 15 further comprising the engine control unit communicating with at least one remote system to obtain information about the engine, wherein at least the first computerized algorithm uses the information received from the at least one remote system to determine whether the engine should be placed in sleep mode.

18. The method of claim 15 wherein in step d the engine control unit signals an operator of the engine to place the engine in sleep mode.

19. The method of claim 15 further comprising the engine control unit communicating with an engine control unit of at least one other vehicle, the engine control unit capable of using the information received from the engine control unit of the at least one other vehicle in at least the second computerized algorithm to determine whether the engine should remain in sleep mode.

20. The method of claim 15 in which placing the engine in sleep mode comprises turning off the engine pistons.

21. The method of claim 15 in which placing the engine in sleep mode comprises placing the engine at a low idle, and turning off one or more auxiliary systems.

22. The method of claim 15 wherein the at least one algorithm considers such factors as fuel costs, engine wear, engine run time, number of starts when determining whether the engine should be placed in sleep mode.

23. The method of claim 15 further comprising the engine control unit restarting the engine if it is not to remain in sleep mode.

24. The method of claim 15 further comprising the engine control unit sending a signal to a machine operator if the engine is not to remain in sleep mode.