US 12,238,238 B2
Systems and methods for detecting airbag deployment resulting from a vehicle crash
Brad Cordova, Cambridge, MA (US); Eddie Vaisman, Cambridge, MA (US); Yuting Qi, Lexington, MA (US); and Sushrut Karnik, Cambridge, MA (US)
Assigned to CAMBRIDGE MOBILE TELEMATICS INC., Cambridge, MA (US)
Filed by CAMBRIDGE MOBILE TELEMATICS INC., Cambridge, MA (US)
Filed on Feb. 28, 2022, as Appl. No. 17/682,360.
Application 17/682,360 is a continuation of application No. 16/405,250, filed on May 7, 2019, granted, now 11,297,177.
Claims priority of provisional application 62/669,910, filed on May 10, 2018.
Prior Publication US 2022/0294893 A1, Sep. 15, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04M 1/72421 (2021.01); B60K 28/14 (2006.01); B60R 21/00 (2006.01); B60R 21/01 (2006.01); B60R 21/013 (2006.01); B60R 21/015 (2006.01)
CPC H04M 1/72421 (2021.01) [B60K 28/14 (2013.01); B60R 21/013 (2013.01); B60R 21/01504 (2014.10); B60R 2021/0027 (2013.01); B60R 2021/01088 (2013.01); H04M 2250/10 (2013.01); H04M 2250/12 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method for detecting airbag deployment using a mobile device, the method comprising:
operating a plurality of sensors of the mobile device, wherein the mobile device is disposed in a vehicle during a drive;
obtaining a plurality of motion measurement signals from the plurality of sensors of the mobile device;
monitoring, by a processor of the mobile device, at least one motion measurement signal of the plurality of motion measurement signals, wherein the processor monitors the at least one motion measurement signal for a first time window;
calculating, by the processor of the mobile device, a first difference in the at least one motion measurement signal corresponding to a first leading edge of the first time window and a first trailing edge of the first time window;
determining, by the processor of the mobile device, that the first difference exceeds a first threshold;
in response to determining that the first difference exceeds the first threshold, monitoring by the processor of the mobile device, a pressure measurement signal, wherein the processor monitors the pressure measurement signal for a second time window;
calculating, by the processor of the mobile device, a second difference in the pressure measurement signal corresponding to a second leading edge of the second time window and a second trailing edge of the second time window;
determining, by the processor of the mobile device, that the second difference exceeds a second threshold;
in response to determining that the second difference exceeds the second threshold, detecting the airbag deployment based on the first difference exceeding the first threshold and the second difference exceeding the second threshold; and
based on detecting the airbag deployment:
identifying a vehicle crash event; and
transmitting a signal to at least one of the mobile device or a computer of a service provider to output an indication of the vehicle crash event.