Blending of sensors to produce alternate sensor characteristics

• US 20070096974A1
• Filed: 10/13/2006
• Published: 05/03/2007
• Est. Priority Date: 10/14/2005
• Status: Abandoned Application

• Current Assignee: Siemens VDO Automotive Corporation (Siemens AG)
• Original Assignee: Siemens VDO Automotive Corporation (Siemens AG)
• Inventors: Garcia, Emmanuel, Gleacher, Jeffrey
• Application Number:
  US11/580,708
• Publication Number:
  US 20070096974A1
• Time in Patent Office: Days
• US Class Current: 342/70
• CPC Class Codes: B60R 2021/01115 specific data frames
• CPC Class Codes: B60R 2021/01252 Devices other than bags
• CPC Class Codes: B60R 21/01 Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents electrical circuits for transmission of signals between steering wheel and the vehicle itself B60R16/027; for electrically actuating belt retractor locking means B60R22/343
• CPC Class Codes: B60R 21/0132 responsive to vehicle motion parameters , e.g. to vehicle longitudinal or transversal deceleration or speed value
• CPC Class Codes: B60W 30/02 Control of vehicle driving stability

Abstract

A method and system generates data within a middle range without a mid-range sensor by combining data within a high and low range. The example system uses high range satellite sensors and a low range sensor disposed within an ECU to obtain a first set of data in the high range and a second set of data in the low range. The first set of data and the second set of data are utilized to produce a third set of data within the middle range thereby eliminating the need for a mid-range sensor.

Claims

1. A method of producing data within a desired range without a sensor for the desired range comprising the steps of:

a) verifying data from at least two high sensors having a first range with data obtained from a low sensor with a second range different than the first range;

b) comparing the verified data from the high sensors with data from the low sensor; and

c) producing data within a third range different than the first and second range with the compared data from the high sensors and the low sensor.

2. The method as recited in claim 1, wherein the third range comprises a range between the first range and the second range.

3. The method as recited in claim 2, wherein the third range comprises data generated to duplicate output of a sensor.

4. The method as recited in claim 1, wherein data from the two high sensors is weighted according to data gathered from the low sensor.

5. The method as recited in claim 1, wherein data from one of the two high sensors is disregarded responsive to the low sensor obtaining a reading below a desired level.

6. The method as recited in claim 1, wherein data from the two high sensors is combined proportionally responsive to a data value obtained by the low sensor.

7. The method as recited in claim 1, wherein data from the two high sensors and the low sensor are combined proportionally responsive to a data value obtained by the low sensor.

8. A method of obtaining vehicle crash data within a desired range without a sensor corresponding to the desired range comprising the steps of:

a) obtaining a first data set from at least two high-range sensors for obtaining data in a range greater than the desired range;

b) obtaining a second data set from a low-range sensor for obtaining data in a range less than the desired range, wherein the low-range sensor is disposed within an electronic control unit of the vehicle; and

c) combining the first data set and the second data set to produce a third data set within a mid-range that is different than the first data set and the second data set.

9. The method as recited in claim 8, wherein the at least two high range sensors comprise sensors for measuring data indicative of vehicle acceleration in a range greater than 50 g.

10. The method as recited in claim 8, wherein the low range sensor comprises a sensor for measuring data indicative of vehicle acceleration in a range less than 10 g.

11. The method as recited in claim 8, wherein the third data set includes data within a range between 10 g and 50 g.

12. The method as recited in claim 8, including the steps of verifying data of the high range sensors by comparing data from each of the high range sensors with data obtained from the low range sensor.

13. The method as recited in claim 8, including the step of combining verified data from the high range sensors with the low range sensor according to the second data set to produce the third data set within the mid-range.

14. A vehicle collision detection system comprising:

a first satellite sensor and a second satellite sensor disposed near an edge of a vehicle, wherein the first satellite sensor and the second satellite sensor obtain data indicative of vehicle acceleration in a first range;

an electronic control unit disposed within the vehicle for controlling a vehicle system;

a low-range sensor disposed within the electronic control unit for obtaining data indicative of vehicle acceleration in a second range lower than the first range, wherein data gathered from the first satellite sensor and the second satellite sensor are combined with data gathered from the low range sensor to produce data within a third range, where the third range is greater than the second range and less then the first range.

15. The system as recited in claim 14, wherein the first and second satellite sensors gather data at a first resolution, and the low-range sensor gathers data at a second resolution that is greater than the first resolution.

16. The system as recited in claim 15, wherein data produced in the third range comprises a third resolution that is greater than the first resolution and less than the second resolution.

17. The system as recited in claim 16, wherein data within the third range is utilized to verify data gathered by the first satellite sensor and the second satellite sensor.

18. The system as recited in claim 17, wherein the third set of data within the third range is produced by combining verified data from the first and second satellite sensors with data from the low-range sensor.