Vehicle speed related algorithm for an inflatable restraint system

• US 20050017487A1
• Filed: 04/08/2004
• Published: 01/27/2005
• Est. Priority Date: 07/25/2003
• Status: Abandoned Application

• Current Assignee: Siemens VDO Automotive Corporation (Siemens AG)
• Original Assignee: Siemens VDO Automotive Corporation (Siemens AG)
• Inventors: Andres, Robert M.
• Application Number:
  US10/820,289
• Publication Number:
  US 20050017487A1
• Time in Patent Office: Days
• US Class Current: 280/735
• CPC Class Codes: B60R 2021/0119 Plausibility check
• CPC Class Codes: B60R 2021/01322 comprising variable thresholds, e.g. depending from other collision parameters
• CPC Class Codes: B60R 21/0132 responsive to vehicle motion parameters , e.g. to vehicle longitudinal or transversal deceleration or speed value

Abstract

An air bag system (12) includes a controller (14), a remote satellite sensor (16), a deployable air bag (18), and a vehicle speed sensor (24). Controller logic for deployment discrimination of an impact event for an airbag deployment command is sensitized when the vehicle is moving and desensitized when the vehicle is stationary.

Claims

1. A method of deployment discrimination for an air bag deployment command comprising the steps of:

(1) determining whether a vehicle is in motion; and

(2) selectively sensitizing a deployment algorithm decision threshold in response to said step (1).

2. A method as recited in claim 1, wherein said step (1) further comprises the step of:

determining whether the vehicle is traveling above a predetermined speed.

3. A method as recited in claim 1, wherein said step (1) further comprises the step of:

determining whether the vehicle is traveling below a predetermined speed for a predetermined time.

4. A method as recited in claim 1, wherein said step (2) further comprises the step of:

adjusting a safing level of deployment algorithm decision threshold.

5. A method as recited in claim 1, wherein said step (2) further comprises the step of:

adjusting a plausibility level of deployment algorithm decision threshold.

6. A method as recited in claim 1, wherein said step (2) further comprises the step of:

requiring a predetermined input level form a multiple of satellite sensors.

7. A method of deployment discrimination for an air bag deployment command comprising the steps of:

(1) measuring a vehicle speed;

(2) determining whether a vehicle is in motion in response to said step (1); and

(3) selectively sensitizing a deployment algorithm decision threshold in response to said step (2).

8. A method as recited in claim 7, wherein said step (1) further comprises the step of:

determining whether the vehicle is traveling above a predetermined speed.

9. A method as recited in claim 7, wherein said step (1) further comprises the step of:

determining whether the vehicle is traveling below a predetermined speed for a predetermined time.