Method of classifying weight information in a vehicle weight classification system

• US 6,519,551 B1
• Filed: 08/29/2000
• Issued: 02/11/2003
• Est. Priority Date: 09/03/1999
• Status: Expired due to Fees

• Current Assignee: Siemens VDO Automotive Corporation (Siemens AG)
• Original Assignee: Siemens VDO Automotive Corporation (Siemens AG)
• Inventors: Quail, Alanna Marie, Garcia, Emmanuel V., Reich, Daniel
• Primary Examiner(s): Bui, Bryan
• Application Number:
  US09/650,132
• Time in Patent Office: 896 Days
• Field of Search: 702/173, 702/174, 702/175, 702/176, 702/177, 701/45, 701/49, 280/734, 280/735, 180/268, 180/271, 180/273
• US Class Current: 702/173
• CPC Class Codes: B60R 21/01516 using force or pressure sensing means
• CPC Class Codes: G01G 19/4142 for controlling activation of safety devices, e.g. airbag systems electrical circuits for triggering safety arrangements in case of vehicle accidents B60R21/015

Abstract

A vehicle weight classification system includes a method of classifying weight information. A plurality of zones are defined and are associated with each of the weight classifications. In one example, the upper and lower limits of the zones overlap those of an adjacent zone. The upper and lower limits of the zones preferably also overlap the thresholds of the corresponding weight classifications. Whenever weight information exists within a zone, a value for that zone is increased. The zone having the highest value is determined to be the zone where the weight information should be classified. The weight information is then classified into the classification associated with the zone having the highest value.

Claims

1. A method of determining a classification of determined weight information, comprising the steps of:

(A) defining a plurality of classification zones having upper and lower limits associated with upper and lower limits of corresponding weight classifications;

(B) determining when the weight information is within one of the zones;

(C) increasing a value for the zone in which the weight information is when the weight information is in said zone;

(D) determining which of the zones has the highest value; and

(E) classifying the weight information into the classification zone having the highest value.

2. The method of claim 1, wherein step (B) includes monitoring the weight information over time and determining a representation of the weight information over time.

3. The method of claim 2, including integrating a value of the representation of the weight information within each of the zones and using the integrated value when performing step (D).

4. The method of claim 1, wherein step (C) includes determining a summation of a representation of the weight information over time within the zone in which the weight information is and using the summation as the value of the zone.

5. The method of claim 1, including performing step (C) for the zone in which the weight information is only until a maximum value for the zone is reached.

6. The method of claim 1, wherein step (A) includes having portions of adjacent zones overlap such that the weight information can be within two zones simultaneously.

7. The method of claim 6, including simultaneously performing steps (B) and (C) for each of two adjacent zones when the weight information is within each of the adjacent zones.

8. The method of claim 1, including decreasing a value for each of the other zones when the weight information is not in the other zones.

9. The method of claim 8, wherein the step of decreasing a value is performed for the other zones, respectively, only until a minimum value for the other zones is reached, respectively.

10. A method of classifying determined weight information, comprising the steps of:

(A) defining a plurality of classification zones that each has an upper limit and a lower limit associated with an upper limit and a lower limit of a corresponding classification;

(B) setting the upper limit of one of the zones to be above a lower limit of an adjacent zone;

(C) determining a value for each zone that is indicative of an amount that the weight information is within each zone; and

(D) classifying the weight information within the zone with the greatest value.

11. The method of claim 10, wherein there is a first zone and a last zone and including setting the upper limit of all of the zones excluding the last zone to be above a lower limit of an adjacent zone and setting the lower limit of all of the zones excluding the first zone to be below the upper limit of an adjacent zone.

12. The method of claim 10, wherein step (C) includes increasing a value for the zone in which the weight information is when the weight information is in said zone.

13. The method of claim 12, including simultaneously performing step (C) for each of two adjacent zones when the weight information is within each of the adjacent zones.

14. The method of claim 12, including decreasing a value for each of the other zones when the weight information is not in the other zones.

15. The method of claim 10, wherein step (C) includes determining a summation of a representation of the weight information over time within the zone in which the weight information is and using the summation as the value of the zone.

16. A system for classifying weight information within one of a plurality of classes in a vehicle weight classification assembly, comprising:

a controller that determines when the weight information is within at least one of a plurality of zones associated with the classes, each zone having an upper limit and a lower limit associated with the upper and lower limits of the associated class, the controller increases a value for a zone when the weight information is within said zone, determines which of the zones has the highest value and classifies the weight information into the class associated with the zone having the highest value.

17. The system of claim 16, wherein the controller increases a value of a zone containing the weight information and decreases a value of any zone that does not contain the weight information.

18. The system of claim 16, wherein the controller determines a summation of a representation of the weight information within each zone and uses the summation as the value of the zone to make the classification determination.

19. A method of determining a classification of determined weight information, comprising the steps of:

(A) defining a plurality of classification zones;

(B) determining when the weight information is within one of the zones, monitoring the weight information over time and determining a representation of the weight information over time;

(C) increasing a value for the zone in which the weight information is when the weight information is in said zone;

(D) determining which of the zones has the highest value; and

(E) classifying the weight information into the classification zone having the highest value.

20. The method of claim 19, including integrating a value of the representation of the weight information within each of the zones and using the integrated value when determining which of the zones has the highest value.

21. A method of determining a classification of determined weight information, comprising the steps of:

(A) defining a plurality of classification zones;

(B) determining when the weight information is within one of the zones;

(C) increasing a value for the zone in which the weight information is when the weight information is in said zone, including determining a summation of a representation of the weight information over time within said zone and using the summation as the value of the zone;

(D) determining which of the zones has the highest value; and

(E) classifying the weight information into the classification zone having the highest value.

22. A method of determining a classification of determined weight information, comprising the steps of:

(A) defining a plurality of classification zones having portions of adjacent zones overlap such that the weight information can be within two zones simultaneously;

(B) determining when the weight information is within one of the zones;

(C) increasing a value for the zone in which the weight information is when the weight information is in said zone;

(D) determining which of the zones has the highest value; and

(E) classifying the weight information into the classification zone having the highest value.

23. The method of claim 22, including simultaneously performing steps (B) and (C) for each of two adjacent zones when the weight information is within each of the adjacent zones.

24. A method of classifying determined weight information, comprising the steps of:

(A) defining a plurality of classification zones that each has an upper limit and a lower limit;

(B) setting the upper limit of one of the zones to be above a lower limit of an adjacent zone;

(C) determining a value for each zone that is indicative of an amount that the weight information is within each zone including increasing a value for the zone in which the weight information is when the weight information is in said zone and simultaneously increasing the value for each of two adjacent zones when the weight information is in each of the adjacent zones; and

(D) classifying the weight information within the zone with the greatest value.

25. A method of classifying determined weight information, comprising the steps of:

(A) defining a plurality of classification zones that each has an upper limit and a lower limit;

(B) setting the upper limit of one of the zones to be above a lower limit of an adjacent zone;

(C) determining a value for each zone that is indicative of an amount that the weight information is within each zone, including determining a summation of a representation of the weight information over time within the zone and using the summation as the value of the zone; and

(D) classifying the weight information within the zone with the greatest value.

26. A system for classifying weight information within one of a plurality of classes in a vehicle classification assembly, comprising:

a controller that determines when the weight information is within at least one of a plurality of zones associated with the classes, increases a value for a zone when the weight information is within said zone, determines a summation of a representation of the weight information within each zone and uses the summation as a value of the zone, determines which of the zones has the highest value and classifies the weight information into the class associated with the zone having the highest value.