Press release #Connected mobility

MEMS sensors from Bosch make driving safer, more fun, and more relaxed

New SMI860 inertial sensor

  • Sensor optimizes ESP®, driver assistance systems, and sophisticated driving dynamics applications
  • Yaw rate, roll-rate, and acceleration measurement in a single compact package
  • SMI860 is especially robust for withstanding vibrations
Joern Ebberg

Joern Ebberg >


Munich and Reutlingen, Germany – Stable vehicle handling under all weather conditions and traffic situations makes car driving not only safer and more comfortable but also delivers a higher degree of enjoyment and dynamics to the driving experience. At the electronica exhibition in Munich, Bosch reveals for the first time its SMI860 five-axis inertial sensor. This extremely robust MEMS sensor enables a safe and natural driving experience – both in everyday as well as demanding situations – noticeably improving driving safety, comfort and dynamics.

Car driving becoming even safer

The intelligent SMI860 MEMS sensor provides important support for active safety and driver assistance systems inside the vehicle. For example, the ESP electronic stability control system (anti-skidding system), greatly increases traffic safety and has, to date, saved more than 8,500 lives in Europe alone. Necessary dynamic driving state data is delivered to the anti-skid system also from the SMI860. It recognizes whether the vehicle is travelling in the direction in which the steering wheel is turned. In the event that these values diverge, the skid protection system is activated. In addition, this new sensor can precisely determine the position of the vehicle, which can be utilized in precise vehicle heading applications.

The SMI860 is the first example of a package from Bosch containing five inertial data measuring elements in a single sensor for active safety applications. The package includes two 16-bit gyroscopes for measuring yaw rate and roll rate, and three 16-bit acceleration sensors. Algorithms are used to calculate the dynamic driving state and position of the vehicle based on the received signals.

Compact, robust, reliable, and temperature-tolerant

This intelligent sensor is built on Bosch’s proven market-leading MEMS technology. Compared to its predecessor, it is better protected against vibrations and its exceptionally high offset stability will deliver reliable long-term operation. It has been developed according to ISO26262 for use in systems up to ASIL D.

Thanks to its small bias instability, the SMI860 delivers low noise performance, thereby further improving its accuracy. Noise (rms) is just ±0.1 °/s for the gyroscope and 4 mg (x and y axes) and 6 mg (z axis) for the accelerometer. A signal conditioning ASIC provides on-chip processing and low-pass filtering, and an industry-standard SafeSPI interface is included for communication with other devices. To save space, the SMI860 is housed in a compact BGA package, measuring just 7mm x 7mm x 1.5mm. Required supply current for the sensor does not exceed 28mA. Its operating temperature range of -40ºC to +125ºC enables it to be installed in practically any location.

Further information:

Contact person for press inquiries:
Annett Fischer
Phone: +49 711 811-6286
Twitter: @Annett__Fischer


  • BOOTH: Tuesday to Friday, November 13–16, 2018, booth 522 in hall C3
  • FOLLOW the Bosch electronica 2018 highlights on Twitter: #BoschMEMS
    • Monday, November 12, 12:30 p.m.: presentation “Sensors enabling future mobility solutions” by Dr. Markus Sonnemann, Vice President Pre-Development MEMS sensors at Robert Bosch GmbH, electronica Automotive Conference at ICM Munich
    • Tuesday, November 13, 11:30 a.m.: presentation “MEMS – one product one process?” by Dr. Udo-Martin Gómez, Senior Vice President MEMS sensors, Robert Bosch GmbH, SEMICON Europe, Fab Management Forum at ICM Munich in room 14c
    • Tuesday, November 13, 3:00 p.m.: Automobilwoche panel discussion “electronica Talk from the Top” with Jens Fabrowsky, Executive Vice President Automotive Electronics at Robert Bosch GmbH, discovery stage in hall C6
    • Tuesday, November 13, 3:30 p.m.: presentation “MEMS Mobility Sensors for motion detection” by Michael Rupp, Senior Expert Product Management Sensors at Robert Bosch GmbH, electronica Automotive Forum in hall B4
    • Wednesday, November 14, 3:40 p.m.: presentation “The future of MEMS-based smart sensor nodes in the context of highly functional and ultra-low power IoT applications” by Dr. Ralf Schellin, Head of Product Area MEMS at Bosch Sensortec GmbH, International Congress Center (ICC)

Mobility is the largest Bosch Group business sector. According to preliminary figures, it generated sales of 56.3 billion euros in 2023, and thus contributed almost 60 percent of total sales. This makes the Bosch Group one of the leading automotive suppliers. The Mobility business sector pursues a vision of mobility that is safe, sustainable, and exciting. For its customers, the outcome is integrated mobility solutions. The business sector’s main areas of activity are injection technology and powertrain peripherals for internal-combustion engines, diverse solutions for powertrain electrification, vehicle safety systems, driver-assistance and automated functions, technology for user-friendly infotainment as well as vehicle-to-vehicle and vehicle-to-infrastructure communication, repair-shop concepts, and technology and services for the automotive aftermarket. Bosch is synonymous with important automotive innovations, such as electronic engine management, the ESP anti-skid system, and common-rail diesel technology.

The Bosch Group is a leading global supplier of technology and services. It employs roughly 428,000 associates worldwide (as of December 31, 2023). According to preliminary figures, the company generated sales of 91.6 billion euros in 2023. Its operations are divided into four business sectors: Mobility, Industrial Technology, Consumer Goods, and Energy and Building Technology. As a leading IoT provider, Bosch offers innovative solutions for smart homes, Industry 4.0, and connected mobility. Bosch is pursuing a vision of mobility that is sustainable, safe, and exciting. It uses its expertise in sensor technology, software, and services, as well as its own IoT cloud, to offer its customers connected, cross-domain solutions from a single source. The Bosch Group’s strategic objective is to facilitate connected living with products and solutions that either contain artificial intelligence (AI) or have been developed or manufactured with its help. Bosch improves quality of life worldwide with products and services that are innovative and spark enthusiasm. In short, Bosch creates technology that is “Invented for life.” The Bosch Group comprises Robert Bosch GmbH and its roughly 470 subsidiary and regional companies in over 60 countries. Including sales and service partners, Bosch’s global manufacturing, engineering, and sales network covers nearly every country in the world. The basis for the company’s future growth is its innovative strength. At 136 locations across the globe, Bosch employs some 90,000 associates in research and development, of which roughly 48,000 are software engineers.

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