STMicroelectronics apresenta módulo inercial automotivo com biblioteca de software certificada ASIL B

STMicroelectronics presents automotive inertial module with ASIL B certified software library

The STMicroelectronics ASM330LHB automotive-qualified MEMS inertial sensing module provides accurate measurements for a variety of vehicle functions and, with the supplied dedicated software, meets functional safety applications up to ASIL B.

The module contains a 3-axis digital accelerometer and 3-axis digital gyroscope, designed for a lifetime on the road and provides a six-channel synchronized output. Its high-precision inertial measurements are used to improve accurate positioning of the car in context. It can support ADAS or vehicle-to-everything (V2X) communication, help stabilize key sensing systems such as radar, lidar, and visual cameras, and assist semi-automatic driving applications up to L2+. Furthermore, it can be used to activate a variety of functionalities in the car body.

With the complementary software engine, the ASM330LHB supports the growing adoption of automotive systems that require safety integrity up to level B. Using two ASM330LHB sensor modules for fail-safe redundancy, the combination provides resilient contextual data for vehicle assistance applications. driver, such as lane centering, emergency braking, cruise assistance and semi-automatic steering.

Developed in accordance with the automotive functional safety standard ISO 26262, the ASIL B-compliant software library has been independently certified by TÜV SÜD. By implementing dedicated security mechanisms, including data integrity and accuracy, the library ensures compliance with ASIL B automotive systems.

In addition to safer driving, the ASM330LHB is very flexible, also offering a smarter life. Its built-in intelligence makes it easy to add new services about the car's status when the driver is away. Leveraging an integrated machine learning core (MLC) that consumes just a few microamps of current, a machine learning algorithm can detect events such as attempted theft, lifting, towing, or impacts from other vehicles.

Furthermore, when monitoring threshold combinations, the integrated finite state machine (FSM) can be ideal for detecting when the vehicle is moving or stationary and for detecting vibrations or instability.

The accelerometer and gyroscope within the module maintain high stability over time and temperature and have very low noise, achieving an overall bias instability of 3°/hour. Specified over the extended temperature range from -40° to 105° C, the ASM330LHB has multiple operating modes that allow designers to optimize data update rate and power consumption.

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