Methods and systems for remotely starting engines of vehicles with bi-directional control

• US 7,647,908 B1
• Filed: 11/14/2008
• Issued: 01/19/2010
• Est. Priority Date: 11/14/2008
• Status: Expired due to Fees

• Current Assignee: GM Global Technology Operations LLC (General Motors Company)
• Original Assignee: GM Global Technology Operations Incorporated (General Motors Company)
• Inventors: Biondo, William A., McCall, Clark E., Proefke, David T.
• Primary Examiner(s): Huynh; Hai H
• Application Number:
  US12/271,587
• Time in Patent Office: 431 Days
• Field of Search: 123/179.2, 701/113
• US Class Current: 123/179.2
• CPC Class Codes: F02D 28/00 Programme-control of engines
• CPC Class Codes: F02N 11/0807 Remote means
• CPC Class Codes: F02N 2200/061 Battery state of charge [SOC]
• CPC Class Codes: F02N 2300/306 with external senders or receivers, e.g. receiving signals from traffic lights, other vehicles or base stations

Abstract

A method for remotely starting an engine of a vehicle includes the steps of assessing a state of charge of the vehicle battery, providing a first type of remote start request to the vehicle if the state of charge of the vehicle battery is greater than a predetermined threshold, and providing a second type of remote start request to the vehicle if the state of charge of the vehicle battery is less than or equal to the predetermined threshold.

Claims

1. A method for remotely starting an engine of a vehicle, the vehicle including a battery, and the method comprising the steps of:

assessing a state of charge of the battery;

providing a first type of remote start request to the vehicle if the state of charge of the battery is greater than a first predetermined threshold; and

providing a second type of remote start request to the vehicle if the state of charge of the battery is less than or equal to the first predetermined threshold.

2. The method of claim 1, wherein:

the step of providing the first type of remote start request comprises the step of transmitting a first plurality of engine start signals to the vehicle, each of the first plurality of engine start signals having a first power level, if the state of charge of the battery is greater than the first predetermined threshold; and

the step of providing the second type of remote start request comprises the step of transmitting a second plurality of engine start signals to the vehicle, each of the second plurality of engine start signals having a second power level that is less than first power level, if the state of charge of the battery is less than the predetermined threshold.

3. The method of claim 2, wherein the step of assessing the state of charge of the battery comprises the steps of:

transmitting a state of charge request signal to the vehicle; and

receiving a state of charge response signal.

4. The method of claim 3, further comprising the step of:

determining a measure of strength of the state of charge response signal;

wherein the step of transmitting the second plurality of engine start signals comprises the step of transmitting the second plurality of engine start signals to the vehicle if the measure of strength of the state of charge response signal is greater than a second predetermined threshold.

5. The method of claim 2, wherein:

the step of transmitting the first plurality of engine start signals comprises the step of transmitting the engine start signals of the first plurality of engine start signals approximately a first time period apart; and

the step of transmitting the second plurality of engine start signals comprises the step of transmitting the engine start signals of the second plurality of engine start signals approximately a second time period apart, wherein the second time period is less than the first time period.

6. The method of claim 2, wherein the step of assessing the state of charge of the battery comprises the step of transmitting a state of charge request signal to the vehicle, and the method further comprises the step of:

displaying a first notification of a lack of response from the vehicle if no state of charge response signal is detected.

7. The method of claim 6, further comprising the step of:

displaying a second notification to move closer to the vehicle if a strength of a state of charge response signal is less than or equal to a second predetermined threshold.

8. A program product for remotely starting an engine of a vehicle having a battery, the program product comprising:

(a) a program configured to at least facilitate;

assessing a state of charge of the battery;

providing a first type of remote start request to the vehicle if the state of charge of the battery is greater than a first predetermined threshold; and

providing a second type of remote start request to the vehicle if the state of charge of the battery is less than or equal to the first predetermined threshold; and

(b) a computer-readable signal bearing media bearing the program.

9. The program product of claim 8, wherein the program is configured to at least facilitate:

transmitting a first plurality of engine start signals to the vehicle, each of the first plurality of engine start signals having a first power level, if the state of charge of the battery is greater than the first predetermined threshold; and

transmitting a second plurality of engine start signals to the vehicle, each of the second plurality of engine start signals having a second power level that is less than first power level, if the state of charge of the battery is less than or equal to the first predetermined threshold.

10. The program product of claim 9, wherein the program is further configured to at least facilitate:

transmitting a state of charge request signal to the vehicle; and

receiving a state of charge response signal.

11. The program product of claim 10, wherein the program is further configured to at least facilitate:

determining a measure of strength of the state of charge response signal; and

transmitting the second plurality of engine start signals to the vehicle if the measure of strength of the state of charge response signal is greater than a second predetermined threshold.

12. The program product of claim 9, wherein the program is configured to at least facilitate:

transmitting the engine start signals of the first plurality of engine start signals approximately X milliseconds apart; and

transmitting the engine start signals of the second plurality of engine start signals approximately Y milliseconds apart, Y being less than X.

13. The program product of claim 9, wherein the program is further configured to at least facilitate displaying a first notification of a lack of response from the vehicle if no state of charge response signal is detected.

14. The program product of claim 13, wherein the program is further configured to at least facilitate displaying a second notification to move closer to the vehicle if a measure of strength of a state of charge response signal is less than or equal to a second predetermined threshold.

15. A system for remotely starting an engine of a vehicle having a battery, the system comprising:

a processor configured to at least facilitate assessing a state of charge of the battery; and

a transmitter coupled to the processor and configured to at least facilitate;

providing a first type of remote start request to the vehicle if the state of charge of the battery is greater than a first predetermined threshold; and

providing a second type of remote start request to the vehicle if the state of charge of the battery is less than or equal to the first predetermined threshold.

16. The system of claim 15, wherein the transmitter is configured to at least facilitate:

transmitting a first plurality of engine start signals to the vehicle, each of the first plurality of engine start signals having a first power level, if the state of charge of the battery is greater than the first predetermined threshold; and

transmitting a second plurality of engine start signals to the vehicle, each of the second plurality of engine start signals having a second power level that is less than first power level, if the state of charge of the battery is less than or equal to the first predetermined threshold.

17. The system of claim 16, further comprising:

a receiver coupled to the processor;

wherein;

the transmitter is configured to at least facilitate transmitting a state of charge request signal to the vehicle;

the receiver is configured to at least facilitate receiving a state of charge response signal from the vehicle in response to the state of charge request;

the processor is configured to at least facilitate determining a measure of strength of the state of charge response signal; and

the transmitter is configured to at least facilitate transmitting the second plurality of engine start signals to the vehicle if the measure of strength of the state of charge response signal is greater than a second predetermined threshold.

18. The system of claim 17, further comprising:

a display coupled to the processor, the display configured to at least facilitate displaying a first notification of a lack of response from the vehicle if no state of charge response signal is detected.

19. The system of claim 18, wherein the display is further configured to at least facilitate displaying a second notification to move closer to the vehicle if the measure of strength of the state of charge response signal is less than or equal to the second predetermined threshold.

20. The system of claim 16, wherein the transmitter is configured to at least facilitate:

transmitting the engine start signals of the first plurality of engine start signals approximately X milliseconds apart; and

transmitting the engine start signals of the second plurality of engine start signals approximately Y milliseconds apart, Y being less than X.