发明名称 |
Pressure-based crash detection system incorporated in side rail |
摘要 |
A vehicular crash sensing system includes a bumper cap for contacting a bumper. A chamber fits into a side rail attached to the bumper, the chamber being sealed by the bumper cap. A stop element limits movement of the chamber into the side rail. A pressure sensor detects an increased chamber air pressure during crushing of the chamber resulting from movement of the bumper with respect to the stop element. |
申请公布号 |
US8960742(B2) |
申请公布日期 |
2015.02.24 |
申请号 |
US201414183741 |
申请日期 |
2014.02.19 |
申请人 |
Ford Global Technologies, LLC |
发明人 |
Ghannam Mahmoud Y.;Clark Todd N.;Stratten Eric L.;Carremm Swadad A. |
分类号 |
B60R19/34;B60R19/48 |
主分类号 |
B60R19/34 |
代理机构 |
MacMillan, Sobanski & Todd, LLC |
代理人 |
Rogers Jason;MacMillan, Sobanski & Todd, LLC |
主权项 |
1. A crash sensing system for a vehicle having a bumper with a contoured surface and having a hollow crush can attached to the bumper, comprising:
a bumper cap having a first end surface shaped to nest into the contoured surface of the bumper; an elongated chamber having an outer wall, at least a portion of which is sized to be received in the crush can, wherein the outer wall has an end opening at a first end for receiving a second end of the bumper cap, and wherein the bumper cap substantially seals the end opening; a reaction cap substantially closing a second end of the outer wall of the chamber, wherein the reaction cap or the elongated chamber include a stop surface for abutting a reaction surface that is stationary with respect to the crush can; and a fluid sensor for detecting a change in the fluid in the chamber caused by crushing of the outer wall in response to a crash force received by the bumper and crush can and transmitted through the bumper cap, wherein the outer wall has a side opening for receiving the pressure sensor. |
地址 |
Dearborn MI US |