EV Mechanica

Subscribe to EV Mechanica's Current Newsletter & never miss an update!

    Close Menu
      Facebook X (Twitter) Instagram
      EVMechanicaEVMechanica
      EVMechanicaEVMechanica
      • Home
      • News
        • E-Mobility
        • EV Battery
      • Charging Stations
      • Policy
      • Research
      • Interview
      • Jobs
      • Events
      • E-Mag
      • Subscription
      Facebook YouTube LinkedIn WhatsApp
      EVMechanicaEVMechanica
      Home » Bringing a Reliable Car Crash Detection Feature to Personal Electronics

      Bringing a Reliable Car Crash Detection Feature to Personal Electronics

      EV TeamBy EV TeamDecember 13, 2022 E-Mobility 4 Mins Read
      Share
      Facebook Twitter LinkedIn WhatsApp

      Car Crash Detection The introduction of a car crash detection feature into smartphones has recently sparked enthusiasm in the tech community. Either based on a low-g or high-g accelerometer, this feature can initiate an emergency call in case of a severe car crash accident. All smartphones across the globe already include at least one low-g accelerometer. Let’s discover why upgrading to high-g is key to ensure reliability, and most importantly, safety.

      High-g accelerometers: what it is and why it matters

      If you are watching videos on your smartphone, you may be changing your screen orientation from portrait to landscape mode. All this, thanks to a low-g accelerometer that senses normal earth gravity-level accelerations. Low-g accelerometers excel at sensing fine motion but offer limited performance when it comes to car crash detection. With a sensitivity cap of up to 8g-force accelerations—eight time the conventional value of gravitational acceleration on Earth—low-g accelerometers may sense a car accident, but might also initiate false SOS emergency calls every time you drive too fast over a pothole.

      Car CrashAny reliable car crash detection system requires an accelerometer that can measure up to several hundreds of g-force accelerations. And that’s where high-g accelerometers come into play, supporting up to ±400g-force accelerations and providing valuable information on the exact nature of the impact. In fact, a myriad of incoming data collected from the sensor—waveforms and vibration shapes—is processed and then translated into clear information. This information helps identify whether you are hitting a simple pothole or are having a serious car accident.

      Initially developed to accurately detect potential concussions in high-impact sports, ST’s H3LIS331DL high-g accelerometer has been designed to fit into kids’ helmets. With a 3x3x1mm footprint, this tiny and low-power sensor has, since then, found its way into a wide range of power-constrained applications, including luxury asset tracking solutions and F1 driver earplugs. Based on ST’s extensive expertise in automotive products, our H3LIS331DL high-g accelerometer also enables highly reliable head-on, rear-end, side-impact as well as rollover crash detection.

      Easily add a crash detection feature to your development

      ST is committed to helping developers make more accurate and affordable car crash detection systems across all personal electronics market segments—not just in the premium models of today. And, above all, we are committed to making developers’ life easier with faster development times.

      ST’s H3LIS331DL offers a wide signal bandwidth and is capable of measuring accelerations with output data rates from 0.5 Hz to 1 kHz, which helps provide additional information on the magnitude of the impact and minimize false-positive emergency calls. Additionally, depending on the detection algorithm in use, ST’s sensor covers ±100 g, ±200 g and up to ±400 g-force accelerations and operates over an extended temperature range from -40 °C to +85 °C, making the overall car crash detection system more secure, even under extreme conditions.

      While existing high-g shock-detection solutions are mostly based on single or dual axis power-hungry motion sensors—such as automotive airbag sensors—ST’s state-of-the-art 3-axis MEMS accelerometers only consume about 20 microwatts. In a further effort to conserve personal electronics batteries and reduce overheating, the sensor also comes with ultra-low-power wake-up modes, including an advanced power saving feature.

      To fast-track your H3LIS331DL-based developments, ST provides a full ecosystem with Android-enabled software drivers and evaluation kits. On top of that, Android designers can quickly create car crash detection system prototypes with our cost-effective STM32 Nucleo development kits.

      Naturally, developers that are already using ST’s low-g accelerometer will have no difficulty in upgrading. Finally, anyone developing a car crash detection system should consider adding a neural network as a piece of software inside the microprocessor to analyze all kinds of situations, including situations that some current phones on the market do not consider—roller coasters at amusement parks.

      For more info, please click here.

      3-axis MEMS accelerometers automotive airbag sensors car crash detection system developers low-g accelerometer luxury asset tracking solutions news
      Share. Facebook Twitter LinkedIn WhatsApp
      EV Team

      More article from EV Team

      Keep Reading

      Tesla-Trump Alliance Ends, Major News for Electric fleets

      Hero’s ₹59,490 EV Takes on Ola, TVS Directly

      Tata Harrier.ev Bookings Begin: India’s First Electric AWD SUV

      Leave A Reply Cancel Reply

      1 × 1 =

      E-MOBILITY

      Tesla-Trump Alliance Ends, Major News for Electric fleets

      July 3, 2025

      Hero’s ₹59,490 EV Takes on Ola, TVS Directly

      July 3, 2025

      Tata Harrier.ev Bookings Begin: India’s First Electric AWD SUV

      July 3, 2025

      Omega Seiki Mobility: Rising challenger in India’s EV market

      July 2, 2025

      Articles

      Delhi’s Vehicle Age Ban: A Harsh Road to Clean Air or Policy Misfire?

      The government took fairly bold action to address Delhi’s chronic air pollution crisis by implementing…

      Why Fintech Innovation is the Catalyst for EV Adoption in Tier 2 India

      While we have heard about the electric vehicle (EV) revolution in India, as it continues…

      Is Silver the New Strategic Metal for the EV and Clean Energy Revolution?

      The transition to sustainable energy systems and electric vehicles (EVs) is not a pipe dream;…

      © 2025 EVMechanica.com.
      • Home
      • About Us
      • Contact Us
      • Subscription

      Type above and press Enter to search. Press Esc to cancel.