Engine control system and method

• US 7,426,435 B2
• Filed: 09/21/2006
• Issued: 09/16/2008
• Est. Priority Date: 09/21/2006
• Status: Active Grant

• Current Assignee: Ford Global Technologies, LLC (Ford Motor Company)
• Original Assignee: Ford Global Technologies, LLC (Ford Motor Company)
• Inventors: Syed, Fazal, Proietty, John, Gauthier, Greg
• Primary Examiner(s): Wolfe, Jr.; Willis R.
• Assistant Examiner(s): Hoang; Johnny H.
• Application Number:
  US11/534,018
• Publication Number:
  US 20080077311A1
• Time in Patent Office: 726 Days
• Field of Search: 701/102, 701/112, 701/93, 701/96, 701/97, 701/166, 701/167, 701/300, 701/301, 180/333, 180/170, 180/232, 180/271, 340/411, 340/435, 340/436, 340/903, 318/568.1, 318/570, 318/571, 318/587, 123/352
• US Class Current: 701/112
• CPC Class Codes: B60T 7/22 initiated by contact of vehicle, e.g. bumper, with an external object, e.g. another vehicle , or by means of contactless obstacle detectors mounted on the vehicle

Abstract

A vehicle engine is controlled based on a distance between the vehicle and an object other than the vehicle. In at least one embodiment, a system for controlling an engine in a vehicle is provided. The system includes an environment sensor arrangement configured to sense a distance between the vehicle and an object other than the vehicle and an operating sensor arrangement configured to sense an operating state of the vehicle. The system also includes a control module configured to determine whether to start or stop the engine based on the distance and the operating state.

Claims

1. A system for controlling an engine in a vehicle comprising:

an environment sensor arrangement located on the vehicle and configured to sense a distance between the vehicle and an object other than the vehicle;

an operating sensor arrangement configured to sense an operating state of the vehicle; and

a control module configured to determine whether to start or stop the engine based on the distance and the operating state.

2. The system of claim 1 wherein the control module uses fuzzy logic to determine whether to start or stop the engine.

3. The system of claim 1 wherein the environment sensor arrangement includes a near object detection system.

4. The system of claim 1 wherein the operating sensor arrangement includes a vehicle speed sensor configured to sense vehicle speed.

5. The system of claim 1 wherein the vehicle further includes an accelerator pedal, and wherein the operating sensor arrangement includes an accelerator pedal sensor configured to sense a position of the accelerator pedal.

6. The system of claim 5 wherein the control module is further configured to determine an acceleration of the accelerator pedal.

7. The system of claim 1 wherein the vehicle further includes a power storage system, and wherein the operating sensor arrangement includes a state of charge sensor configured to sense a state of charge of the power storage system.

8. The system of claim 1 wherein the vehicle further includes a brake pedal, and wherein the operating sensor arrangement includes a brake pedal sensor configured to sense a position of the brake pedal.

9. The system of claim 8 wherein the control module is further configured to determine an acceleration of the brake pedal.

10. A method for controlling an engine in a vehicle comprising:

determining a distance between the vehicle and an object other than the vehicle;

determining an operating state of the vehicle;

requesting the engine to start or stop based on the distance and the operating state.

11. The method of claim 10 further comprising determining the distance'"'"'s degree of membership within a membership function.

12. The method of claim 10 further comprising determining the state'"'"'s degree of membership within a membership function.

13. The method of claim 10 wherein a near object detection system determines the distance between the vehicle and an object other than the vehicle.

14. The method of claim 10 wherein the state comprises a state of charge of a power storage system.

15. The method of claim 10 wherein the state comprises the vehicle'"'"'s speed.

16. The method of claim 10 wherein the state comprises a driver demand for power.

17. A system for controlling an engine in a vehicle comprising:

an environment sensor arrangement located on the vehicle and configured to sense a distance between the vehicle and an object other than the vehicle; and

a control module configured to determine whether to start or stop the engine based on the distance.

18. The system of claim 17 wherein the environment sensor arrangement includes a near object detection system.

19. The system of claim 17 wherein the control module uses fuzzy logic to determine whether to start or stop the engine.

20. The system of claim 17 wherein the control module uses Boolean logic to determine whether to start or stop the engine.