Driveline sound monitor

• US 6,072,388 A
• Filed: 12/22/1998
• Issued: 06/06/2000
• Est. Priority Date: 12/22/1998
• Status: Expired due to Fees

• Current Assignee: Meritor Heavy Vehicle Systems, LLC (Meritor, Inc. (Nevada))
• Original Assignee: Meritor Heavy Vehicle Systems, LLC (Meritor, Inc. (Nevada))
• Inventors: Kyrtsos, Christos T.
• Primary Examiner(s): Wu, Daniel J.
• Assistant Examiner(s): Nguyen, Tai T.
• Application Number:
  US09/218,711
• Time in Patent Office: 532 Days
• Field of Search: 340/439, 340/438, 340/453, 340/988, 340/4, 340/440, 340/441, 340/682, 340/683, 340/679, 73/593, 73/40.5 A, 73/591, 73/570, 73/865.6, 73/862, 73/669
• US Class Current: 340/439
• CPC Class Codes: G01M 17/007 Wheeled or endless-tracked vehicles G01M17/08 takes precedence

Abstract

A method of monitoring sounds of a driveline includes detecting a sound from a driveline, comparing the detected sound with-a predicted sound of the driveline, and, when the detected sound differs from the predicted sound of the driveline, sending a warning signal that the driveline may be experiencing a problem. The method of monitoring the sounds of a driveline is used to determine the physical condition of the driveline. The present invention allows the driver to check the physical condition of a driveline while operating the vehicle. A sound detector detects sounds from a driveline and send sound signals to a control which receives the sound signals, performs computations based on the detected sounds, and compares the computations with predicted sounds of the driveline. The control sends warning signals to a display, when the detected sounds differ from the predicted sounds.

Claims

1. A method of monitoring sounds of a driveline comprising:

a. detecting a sound from the driveline, said detecting being performed by a monitor mounted on a vehicle, and said detecting being performed while said vehicle is being operated;

b. comparing the detected sound with a predicted sound of the driveline; and

c. sending a signal indicating that the driveline may be experiencing a problem based upon the comparison in the step (b).

2. A method as in claim 1, wherein the problem relates to a potential damage to the driveline.

3. A method as in claim 1, wherein the detected sound is a plurality of sounds of the driveline.

4. A method as in claim 3, wherein the predicted sound includes a plurality of sound values representing normal running conditions and non-normal running conditions of the driveline.

5. A method of monitoring sounds of a driveline comprising:

providing a sound detector, a control, and a display mounted on a vehicle;

detecting a sound from the driveline with the detector and while said vehicle is being operated;

sending sound signals of the detected sounds to the control;

receiving the sound signals with the control;

performing computations of the sound signals;

comparing the computations with a predicted sound of the driveline; and

sending a signal to the display that the driveline may be experiencing a problem relating to a potential damage to the driveline, when the detected sound differs from the predicted sound of the driveline.

6. A method as in claim 5, after the step of receiving the sound signals, further comprising the step of separating specific sound signals from the sound signals, wherein the specific sound signals represent a desired range of amplitudes.

7. A method as in claim 6, wherein the step of performing computations of the sound signals includes performing separate computations for each of the specific sound signals.

8. A method as in claim 5, wherein the detected sound is a plurality of sounds of the driveline.

9. A method as in claim 8, wherein the predicted sound is a plurality of pre-determined quantities representing normal running conditions and nonnormal running conditions of the driveline.