AIRBAG CONTROL UNIT WITH IMU INTEGRATION

• US 20120139219A1
• Filed: 04/20/2011
• Published: 06/07/2012
• Est. Priority Date: 12/02/2010
• Status: Abandoned Application

• Current Assignee: Hyundai Motor Company (Hyundai Motor Group), Kia Motors Corporation (Kia Corp.)
• Original Assignee: Hyundai Motor Company (Hyundai Motor Group), Kia Motors Corporation (Kia Corp.)
• Inventors: Mun, Sung Ho, Jang, Jae Myung
• Application Number:
  US13/090,675
• Publication Number:
  US 20120139219A1
• Time in Patent Office: Days
• US Class Current: 280/735
• CPC Class Codes: B60R 21/013 including means for detecting collisions, impending collisions or roll-over
• CPC Class Codes: B60R 21/0132 responsive to vehicle motion parameters , e.g. to vehicle longitudinal or transversal deceleration or speed value

Abstract

Provided is an airbag control unit with inertial measurement unit (IMU) integration, which includes an airbag collision sensor configured to detect airbag collision information; a digital sensor configured to detect a yaw rate and an acceleration, and to convert a detected data to a digital signal; and a micom configured to identify whether an output from the digital sensor and an output from the airbag collision sensor are within a measurement range of a corresponding sensor.

Claims

1. An airbag control unit with inertial measurement unit (IMU) integration, the airbag control unit comprising:

an airbag collision sensor configured to detect an airbag collision information;

a digital sensor configured to detect a yaw rate and an acceleration, and configured to convert a detected data to a digital signal; and

a micom configured to identify whether an output from the digital sensor and an output from the airbag collision sensor are within a measurement range of a corresponding sensor.

2. The airbag control unit with IMU integration of claim 1, wherein the digital sensor performs filtering, temperature calibration and offset calibration on the digital signal.

3. The airbag control unit with IMU integration of claim 2, wherein the micom filters a calibrated output from the digital sensor, performs the identification, and converts the identified data into a data in compliance with a controller area network (CAN) communication protocol.

4. The airbag control unit with IMU integration of claim 1, wherein the digital sensor converts a yaw rate sensing value and acceleration values for an X axis and a Y axis into respective digital signals.

5. The airbag control unit with IMU integration of claim 2, wherein the digital sensor converts a yaw rate sensing value and acceleration values for an X axis and a Y axis into respective digital signals.

6. The airbag control unit with IMU integration of claim 3, wherein the digital sensor converts a yaw rate sensing value and acceleration values for an X axis and a Y axis into respective digital signals.

7. The airbag control unit with IMU integration of claim 1, further comprising:

a power supply unit configured to provide a power to the digital sensor, the airbag collision sensor, and the micom.

8. The airbag control unit with IMU integration of claim 2, further comprising:

a power supply unit configured to provide a power to the digital sensor, the airbag collision sensor, and the micom.

10. The airbag control unit with IMU integration of claim 1, wherein

the first sensor is an air bag control sensor and the second sensor is a digital sensor,

the data detected a yaw rate and an acceleration, and

the digital sensor performing filtering, temperature calibration and offset calibration on the digital signal.

11. The airbag control unit with IMU integration of claim 10, wherein the micom filters a calibrated output from the digital sensor, performs the identification, and converts the identified data into a data in compliance with a controller area network (CAN) communication protocol.

12. The airbag control unit with IMU integration of claim 10, wherein the digital sensor converts a yaw rate sensing value and acceleration values for an X axis and a Y axis into respective digital signals.

13. The airbag control unit with IMU integration of claim 10, wherein the digital sensor converts a yaw rate sensing value and acceleration values for an X axis and a Y axis into respective digital signals.

14. The airbag control unit with IMU integration of claim 10, further comprising:

a power supply unit configured to provide a power to the digital sensor, the airbag collision sensor, and the micom.

9. An airbag control unit with inertial measurement unit (IMU) integration, the airbag control unit comprising:

a first sensor configured to detect an airbag collision information;

a second sensor configured to detect data related to a yaw rate and an acceleration, and convert the detected data to a digital signal; and

a micom configured to identify whether an output from the second sensor and an output from the first sensor are within a predetermined range of a corresponding sensor.

15. A method for operating an airbag control unit with inertial measurement unit (IMU) integration, the method comprising:

detecting, by a first sensor, airbag collision information;

detecting, by a second sensor, data related to a yaw rate and an acceleration;

converting, by the second sensor, the detected data to a digital signal; and

identifying by a micom whether an output from the second sensor and an output from the first sensor are within a predetermined range of a corresponding sensor.