Method for increasing accuracy of vehicle data

• US 9,679,422 B2
• Filed: 07/23/2015
• Issued: 06/13/2017
• Est. Priority Date: 07/23/2014
• Status: Active Grant

• Current Assignee: William D. Nicholson
• Original Assignee: William D. Nicholson
• Inventors: Nicholson, William D.
• Primary Examiner(s): Nguyen, Cuong H
• Application Number:
  US14/806,930
• Publication Number:
  US 20170024941A1
• Time in Patent Office: 691 Days
• Field of Search: 701 325, 701 99, 701 54, 701 344, 340438-439, 340461, 340442, 340444, 710 5, 710 17, 710 33
• CPC Class Codes: G07C 2205/02 using a vehicle scan tool
• CPC Class Codes: G07C 5/0808 Diagnosing performance data testing of vehicles G01M17/00; testing of electrical installation on vehicles G01R31/005

Abstract

The present invention is for a method of creating new vehicle data using existing vehicle data. The method relies on using vehicle parameter(s) to adjust a less accurate parameter or create a new related parameter for subsequent use. This will be useful in situations where the vehicle network signal provided to a device such as an OBDII data collection system is not accurate or does not have enough resolution.

Claims

1. A method of accurately calculating one or more new vehicle parameters using a vehicle parameter obtained from a vehicle bus for vehicle and driving evaluation comprising:

a. obtaining vehicle speed from a J1708, J1939, OBD, OBDII, OBDIII or CAN vehicle bus using a device communicating with the bus;

b. obtaining an engine RPM from said vehicle bus with said device;

c. developing and using one or more equations where the equations incorporate vehicle speed and engine RPM wherein said equation(s) resolve the value of a vehicle speed using an engine RPM;

d. using said equations with said device to calculate a new resolved vehicle speed and its derivative(s);

e. providing functionality to make the resolved value of the vehicle speed and/or its derivative(s) operationally available through said device.

3. The method of claim 1 in which the derivative is a distance.

4. The method of claim 1 in which the derivative(s) represent tire pressure or tire wear.

5. The method of claim 1 in which the derivative(s) represent transmission and gear parameters.

6. The method of claim 1 in which the derivative is an acceleration/deceleration.

7. The method of claim 1 in which the derivative(s) represent trip parameter(s).

8. The method of claim 1 in which the derivative(s) represent other vehicle parameters.

9. The method of claim 1 in which the equation uses the halfway point between two successive vehicle speeds to calculate the resolved vehicle speed value.

11. The method of claim 1 in which the equation uses the lowest rpm at unresolved vehicle speed values to resolve the vehicle speed.

12. The method of claim 1 in which the equation uses the highest rpm at unresolved vehicle speed values to resolve the vehicle speed.

13. The method of claim 1 in which the equation uses multiple ranges of engine RPM at unresolved vehicle speed values to resolve the vehicle speed.

15. The method of claim 1 in which the equation incorporates additional parameters to calculate the resolved vehicle speed.

16. The method of claim 1 in which the equation resolves any speed parameter to finer than 1 Km/hr.

17. The method of claim 1 in which the equation resolves any distance parameter to finer than 1 Km.

19. The method of claim 1 in which the equation is developed from driving.

20. The method of claim 1 in which the equation used is a function defined by the transmission and/or gear box of the vehicle.

23. The method of claim 1 in which the equations consist of multiple equations at various vehicle speed values.

2. A method of accurately calculating one or more new vehicle parameters using a vehicle parameter obtained from a vehicle bus for vehicle and driving evaluation comprising:

a. using a device operably connected to a J1708, J1939, OBD, OBDII, OBDIII or CAN vehicle bus to obtain one or more reading(s) of a parameter from said vehicle bus;

b. using said device to obtain one or more reading(s) of other parameter(s) from the said vehicle bus;

c. developing and using one or more equations which incorporate said parameters wherein said equation(s) resolve the value of the first parameter using the other parameter(s) obtained;

d. using said equations with said device to calculate a resolved value for the first parameter and/or its derivative(s);

e. providing functionality to make the resolved value of the first parameter and/or its derivative(s) operationally available through said device.

10. The method of claim 2 where one parameter is speed and one parameter is RPM.

22. The method of claim 2 in which the derivative(s) are parameters that represent the performance of the transmission of a vehicle.

14. A method of calculating vehicle tire diagnostic information comprising:

a. obtaining a speed from a vehicle bus using a device communicating with the bus and calculating a new vehicle speed/related parameter using engine RPM or another parameter from the bus to obtain a speed resolution finer than its original;

b. obtaining another vehicle speed/related parameter from another source;

c. developing one or more equations incorporating said speeds/parameters to calculate tire diagnostic parameters.

18. The method of claim 14 where the equations are developed using speeds at integer values.

21. The method of claim 14 where the calculations yield a result representative of tire pressure, tire size or tire wear.