Peripheral-sensor accelerometers

  • 21-Dec-2010 08:44 EST


STMicroelectronics’ family of high-g acceleration sensors for advanced airbag systems are micro-machined devices that detect the rapid deceleration of the vehicle during a crash and send instant information to the airbag control unit. The AIS1xxxDS peripheral-sensor accelerometers provide single-axis in-plane motion sensing across five full-scale ranges from ±20 g up to ±400 g. An on-chip integrated circuit interface converts the deceleration data into a high-resolution digital bit stream that is transmitted with high reliability to a dedicated microcontroller chip through a standard distributed system interface protocol. Sophisticated algorithms evaluate the situation and decide whether or not to deploy the airbag within a few milliseconds. The sensing part of the airbag accelerometer is fabricated on ST’s 8-in (203-mm) MEMS (microelectromechanical systems) line. The electrical part benefits from the high level of integration and specific control of parasitic currents made possible by the Silicon-On-Insulator technology in ST’s Bipolar-CMOS-DMOS manufacturing process.

HTML for Linking to Page
Page URL
Rate It
4.00 Avg. Rating

Read More Articles On

Despite rumors of an acquisition by Apple, McLaren is racing ahead on £1B in self-funded R&D and an ambitious plan to develop an electric supercar worthy of the name.
In the ongoing design and engineering crusade that is vehicle lightweighting, grams count. In some cases, tenths of a gram count. Regardless of how fuel price has moderated in the U.S. in recent years, the importance of global platforms and global markets means the drive to create more mass-efficient vehicle structures, subassemblies and components continues unabated.
Peugeot used the 2016 Paris Show for the public launch of the 3008 and 5008 models, now re-defined as SUVs. Both models use the PSA Efficient Modular Platform 2 (EMP2).
Cab doors that open 180° thanks to a new hinge design are one innovative feature on the recently unveiled 2017 Titan King Cab model.

Related Items

Technical Paper / Journal Article
Training / Education
Training / Education