INTELLIGENT ENGINE IDLE STOP LOGIC

• US 20120095670A1
• Filed: 10/13/2010
• Published: 04/19/2012
• Est. Priority Date: 10/13/2010
• Status: Abandoned Application

• Current Assignee: Denso International America Incorporated (DENSO Corporation)
• Original Assignee: Denso International America Incorporated (DENSO Corporation)
• Inventors: Piggott, Alfred
• Application Number:
  US12/903,728
• Publication Number:
  US 20120095670A1
• Time in Patent Office: Days
• US Class Current: 701/112
• CPC Class Codes: F02D 17/04 rendering engines inoperative or idling, e.g. caused by abnormal conditions dependent on lubricating conditions F01M1/22; dependent on cooling F01P5/14
• CPC Class Codes: F02N 11/0837 Environmental conditions thereof, e.g. traffic, weather or road conditions
• CPC Class Codes: F02N 2200/061 Battery state of charge [SOC]
• CPC Class Codes: F02N 2200/0806 Air condition state
• CPC Class Codes: F02N 2200/101 Accelerator pedal position
• CPC Class Codes: F02N 2200/102 Brake pedal position
• CPC Class Codes: F02N 2300/2004 using adaptive control
• CPC Class Codes: F02N 2300/306 with external senders or receivers, e.g. receiving signals from traffic lights, other vehicles or base stations
• CPC Class Codes: Y02T 10/40 Engine management systems

Abstract

A method of controlling an internal combustion engine of a vehicle may involve turning on the internal combustion engine, stopping the vehicle or while the vehicle is approaching a known potential stopping location, inquiring whether a first predetermined quantity of data samples exists in memory and further inquiring whether the first predetermined quantity of data samples corresponds to a specific time of day, of a specific day of the week, of a specific month of the year, for a specific GPS location, inquiring whether a second predetermined quantity of data samples exists in memory for the specific time of any day of the week for the specific GPS location, inquiring whether a third predetermined quantity of data samples exists for any single, specific time of day for any day of the week for the specific GPS location. Depending upon the reply to each of the above inquiries, the method may include turning off the internal combustion engine.

Claims

1. A method of controlling an internal combustion engine of a vehicle, the method comprising:

turning on the internal combustion engine; and

inquiring whether a first predetermined quantity of data samples exists in memory and further inquiring whether the first predetermined quantity of data samples corresponds to a specific time of day, of a specific day of the week, of a specific month of the year, for a specific GPS location.

2. The method of controlling an internal combustion engine according to claim 1, further comprising:

inquiring whether a second predetermined quantity of data samples exists in memory for the specific time of any day of the week for the specific GPS location.

3. The method of controlling an internal combustion engine according to claim 2, further comprising:

inquiring whether a third predetermined quantity of data samples exists for any single, specific time of day for any day of the week for the specific GPS location.

4. The method of controlling an internal combustion engine according to claim 3, further comprising:

inquiring whether a fourth predetermined quantity of data samples exists as downloadable data from a real time wireless network.

5. The method of controlling an internal combustion engine according to claim 4, further comprising turning off the internal combustion engine.

6. The method of controlling an internal combustion engine according to claim 1, further comprising:

inquiring if a probability of a physical stop of the vehicle is greater than a predetermined probability;

calculating a median stop time value; and

inquiring whether a time to a median stop position plus a median stop time is greater than the idle restart penalty.

7. The method of controlling an internal combustion engine according to claim 2, further comprising

inquiring if a probability of a physical stop of the vehicle is greater than a predetermined probability;

calculating a median stop time value; and

inquiring whether a time to a median stop position plus a median stop time is greater than the idle restart penalty.

8. The method of controlling an internal combustion engine according to claim 3, further comprising

inquiring if a probability of a physical stop of the vehicle is greater than a predetermined probability;

calculating a median stop time value; and

inquiring whether a time to a median stop position plus a median stop time is greater than the idle restart penalty.

9. The method of controlling an internal combustion engine according to claim 4, further comprising

inquiring if a probability of a physical stop of the vehicle is greater than a predetermined probability;

calculating a median stop time value; and

inquiring whether a time to a median stop position plus a median stop time is greater than the idle restart penalty.

10. The method of controlling an internal combustion engine according to claim 1, further comprising:

inquiring if a probability of a physical stop of the vehicle is greater than a predetermined probability; and

not turning off the internal combustion engine.

11. The method of controlling an internal combustion engine according to claim 4, further comprising:

inquiring if a probability of a physical stop of the vehicle is greater than a predetermined probability; and

not turning off the internal combustion engine.

12. A method of controlling an internal combustion engine of a vehicle, the method comprising:

turning on the internal combustion engine;

determining that a brake pedal of the vehicle is applied;

determining that an accelerator pedal of the vehicle is not applied;

determining that a battery of the vehicle is adequately charged;

determining that an air temperature of air coming from an air conditioning unit is within a predetermined range;

determining that a humidity level of air coming from an air conditioning unit is within a predetermined range; and

inquiring whether a first predetermined quantity of data samples exists in memory and further inquiring whether the first predetermined quantity of data samples corresponds to a specific time of day, of a specific day of the week, of a specific month of the year, for a specific GPS location.

13. The method of controlling an internal combustion engine according to claim 12, further comprising:

inquiring whether a second predetermined quantity of data samples exists in memory for the specific time of any day of the week for the specific GPS location.

14. The method of controlling an internal combustion engine according to claim 13, further comprising:

inquiring whether a third predetermined quantity of data samples exists for any single, specific time of day for any day of the week for the specific GPS location.

15. The method of controlling an internal combustion engine according to claim 14, further comprising:

inquiring whether a fourth predetermined quantity of data samples exists as downloadable data from a real time wireless network.

16. The method of controlling an internal combustion engine according to claim 15, further comprising turning off the internal combustion engine.

17. The method of controlling an internal combustion engine according to claim 12, further comprising:

inquiring if a probability of a physical stop of the vehicle is greater than a predetermined probability;

calculating a median stop time value; and

inquiring whether a time to a median stop position plus a median stop time is greater than the idle restart penalty.

18. The method of controlling an internal combustion engine according to claim 13, further comprising

inquiring if a probability of a physical stop of the vehicle is greater than a predetermined probability;

calculating a median stop time value; and

inquiring whether a time to a median stop position plus a median stop time is greater than the idle restart penalty.

19. The method of controlling an internal combustion engine according to claim 14, further comprising

inquiring if a probability of a physical stop of the vehicle is greater than a predetermined probability;

calculating a median stop time value; and

inquiring whether a time to a median stop position plus a median stop time is greater than the idle restart penalty.

20. The method of controlling an internal combustion engine according to claim 15, further comprising

inquiring if a probability of a physical stop of the vehicle is greater than a predetermined probability;

calculating a median stop time value; and

inquiring whether a time to a median stop position plus a median stop time is greater than the idle restart penalty.