System and method for detecting vehicle wake-up failure

• US 8,583,305 B2
• Filed: 03/31/2011
• Issued: 11/12/2013
• Est. Priority Date: 03/31/2011
• Status: Expired due to Fees

• Current Assignee: GM Global Technology Operations LLC (General Motors Company)
• Original Assignee: GM Global Technology Operations LLC (General Motors Company)
• Inventors: Novak, Voytek, Cubr, Anthony E., Shripathy, Vivekananda
• Primary Examiner(s): MARC-COLEMAN, MARTHE Y
• Application Number:
  US13/076,922
• Publication Number:
  US 20120253569A1
• Time in Patent Office: 957 Days
• Field of Search: 701/22, 701/36, 701/34.3, 701/53, 701/34.4, 701/31.9, 701/30.1, 701 29- 1, 701/29.2, 701/29.9, 180/65.21, 713/323, 713/324, 713/330, 713/340, 713/320, 700/22, 700/12, 700/20, 700/3, 700/9
• US Class Current: 701/22
• CPC Class Codes: B60W 2050/0096 Control during transition between modes
• CPC Class Codes: B60W 30/192 Mitigating problems related to power-up or power-down of the driveline, e.g. start-up of a cold engine
• CPC Class Codes: B60W 50/0098 Details of control systems ensuring comfort, safety or stability not otherwise provided for
• CPC Class Codes: B60W 50/0205 Diagnosing or detecting failures; Failure detection models

Abstract

A control system for a vehicle includes a wake-up module and a failure detection module. The wake-up module selectively powers on a vehicle control module, wherein the vehicle control module controls sub-systems of the vehicle. The failure detection module detects a failure of the wake-up module during a period when the vehicle control module is powered off and an enable condition is met, wherein the failure is detected based on (i) whether an internal wake-up is requested or an external wake-up is requested during a first predetermined period and (ii) whether a run/crank (R/C) operation is requested.

Claims

1. A control system for a vehicle, the control system comprising:

a wake-up module that selectively powers on a vehicle control module, wherein the vehicle control module controls sub-systems of the vehicle; and

a failure detection module that detects a failure of the wake-up module during a period when the vehicle control module is powered off and an enable condition is met, wherein the failure is detected based on (i) whether an internal wake-up is requested or an external wake-up is requested during a first predetermined period and (ii) whether a run/crank (R/C) operation is requested.

2. The control system of claim 1, wherein the failure detection module detects a failure of the wake-up module when (i) at least one of an internal wake-up is requested and an external wake-up is requested during the first predetermined period and (ii) an R/C operation is requested.

3. The control system of claim 1, wherein the enable condition includes at least one of a presence of an alarm and an expiration of a timer.

4. The control system of claim 1, wherein the internal wake-up is requested after a second predetermined period has lapsed, wherein the second predetermined period is based on a period for an on-board diagnostic (OBD) key-off timer to saturate.

5. The control system of claim 1, wherein the internal wake-up is requested when alarm expires.

6. The control system of claim 5, wherein the vehicle is a hybrid vehicle.

7. The control system of claim 6, wherein the alarm corresponds to at least one of energy storage thermal management, time of day charging, and evaporative emissions.

8. The control system of claim 1, wherein the external wake-up is requested based driver input including at least one of an R/C request, an accessory request, and a refuel request.

9. The control system of claim 1, wherein the R/C operation is requested by a driver of the vehicle via one of a push-button starter, a key cylinder starter, and a remote vehicle starter.

10. The control system of claim 1, wherein the failure detection module generates a warning signal when a wake-up failure is detected.

11. A method for a vehicle, the method comprising:

selectively powering on a vehicle control module, wherein the vehicle control module controls sub-systems of the vehicle; and

detecting a wake-up failure during a period when a vehicle control module is powered off and an enable condition is met, wherein the failure is detected based on (i) whether an internal wake-up is requested or an external wake-up is requested during a first predetermined period and (ii) whether a run/crank (R/C) operation is requested.

12. The method of claim 11, further comprising detecting a wake-up failure when (i) at least one of an internal wake-up is requested and an external wake-up is requested during the first predetermined period and (ii) an R/C operation is requested.

13. The method of claim 11, wherein the enable condition includes at least one of a presence of an alarm and an expiration of a timer.

14. The method of claim 11, wherein the internal wake-up is requested after a second predetermined period has lapsed, wherein the second predetermined period is based on a period for an on-board diagnostic (OBD) key-off timer to saturate.

15. The method of claim 11, wherein the internal wake-up is requested when alarm expires.

16. The method of claim 15, wherein the vehicle is a hybrid vehicle.

17. The method of claim 16, wherein the alarm corresponds to at least one of energy storage thermal management, time of day charging, and evaporative emissions.

18. The method of claim 11, wherein the external wake-up is requested based driver input including at least one of an R/C request, an accessory request, and a refuel request.

19. The method of claim 11, wherein the R/C operation is requested by a driver of the vehicle via one of a push-button starter, a key cylinder starter, and a remote vehicle starter.

20. The method of claim 11, further comprising generating a warning signal when a wake-up failure is detected.