Method for operating a pre-crash sensing system to deploy airbags using inflation control
First Claim
Patent Images
1. A method of operating a restraint system comprising:
- deploying an airbag prior to a collision in pre-collision mode in response to a pre-crash sensing system output signal including a predicted time to impact;
activating active vents based on the predicted time to impact;
confirming a collision using vehicle acceleration signals, wherein the collision is confirmed at an elapsed time that differs from the predicted time to impact;
adjusting the predicted time to impact based on the vehicle acceleration signals; and
controlling the active vents according to the adjusted predicted time to impact.
2 Assignments
0 Petitions
Accused Products
Abstract
A method of operating a restraint system comprises deploying an airbag in response to a pre-crash sensing system prior to collision in a first stage and controlling an inflation of the airbag in a second stage in response to acceleration signals of the vehicle.
-
Citations
15 Claims
-
1. A method of operating a restraint system comprising:
-
deploying an airbag prior to a collision in pre-collision mode in response to a pre-crash sensing system output signal including a predicted time to impact; activating active vents based on the predicted time to impact; confirming a collision using vehicle acceleration signals, wherein the collision is confirmed at an elapsed time that differs from the predicted time to impact; adjusting the predicted time to impact based on the vehicle acceleration signals; and controlling the active vents according to the adjusted predicted time to impact. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A method of operating an airbag having a controllable vent comprising:
-
deploying an airbag prior to a crash in response to a pre-crash sensing system output including a predicted time to impact; operating an airbag vent to control a rate of inflation; determining a crash severity; determining occupant information; confirming a crash using vehicle acceleration signals wherein the crash is confirmed at a point in time other than the predicted time to impact; adjusting a predicted time to impact based on the vehicle acceleration signals; and operating the airbag vent in response to confirmation of the crash, the crash severity, the occupant information, and the adjusted predicted time to impact. - View Dependent Claims (14, 15)
-
Specification