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2015.03.09 20:06

Acceleration sensor for infotainment systems Car/BOSCH2015.03.09 20:06


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Bosch’s new SMA130 triaxial acceleration sensor provides information for infotainment and telematics applications in vehicles. “Until now, automakers have mainly used data from acceleration sensors for safety systems,” says Dr. Frank Schäfer, head of product management for automotive MEMS sensors. “The SMA130, on the other hand, delivers the data needed for eCall emergency notification and navigation systems.” The sensor measures acceleration along three axes arranged at right angles, as well as inclination, movement, vibration, and shock. The new Bosch acceleration sensor, based on MEMS technology, will go into series production in late 2015.


Measuring just 2 x 2 millimeters, the SMA 130 is the world’s smallest acceleration sensor for automotive applications, making it easy to install. Despite its tiny size, it provides measurements between ±2 g and ±16 g in high 14-bit resolution. This resolution, combined with the minuscule dimensions, places significant demands on the sensor’s circuit design. Yet the SMA130 consumes just 130 microamperes when active, making it highly energy efficient. Five user-defined energy-saving modes also reduce power consumption to as low as one microampere. This is essential for use in alarm systems, for example, to prevent the sensor from putting excess strain on the battery when the vehicle is parked for longer periods of time. The individual modes can be activated in less than two milliseconds. This guarantees that the respective application quickly and reliably receives the corresponding information from the sensor. In addition, a digital interface makes it possible to individually select four different sensor measuring ranges and set a variety of filter options. A built-in self-test ensures the reliability of the sensor signals. The new acceleration sensor is also AEC-Q100 qualified.


A sensor for a wide range of applications

The sensor signals can be used in a wide range of applications. In addition to data on vehicle acceleration, which is relevant for features such as the eCall service or the car’s alarm system, the SMA130 can also support the navigation system when GPS reception is poor by providing additional information. When several roads overlap, the sensor sends data on inclination to the navigation system, for example, allowing it to pinpoint the vehicle’s position.


Background to MEMS technology

Bosch has been at the forefront of MEMS (microelectromechanical systems) technology since the very beginning, and is today the world’s leading manufacturer of MEMS sensors. Its portfolio includes pressure, acceleration, and yaw-rate sensors, as well as combined inertia sensors, environmental sensors, and microphones for use in motor vehicles and consumer electronics. All Bosch MEMS sensors, including the SMA130, are RoHS-compliant. 


More information on Bosch sensors is available at www.bosch-sensors.com,http://twitter.com/BoschMEMS.

Readers’ contact:
Peter Spoden
Phone: +49 7121 35-38313


Mobility Solutions is the largest Bosch Group business sector. According to preliminary figures, its 2014 sales came to 33.3 billion euros, or 68 percent of total group sales. This makes the Bosch Group one of the leading automotive suppliers. Mobility Solutions largely operates in the following areas: injection technology for internal-combustion engines, alternative powertrain concepts, efficient and networked powertrain peripherals, systems for active and passive driving safety, assistance and comfort functions, technology for user-friendly infotainment as well as car-to-car and Car2X communication, and concepts, technology, and service for the automotive aftermarket. Bosch has been responsible for 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. According to preliminary figures, its roughly 290,000 associates generated sales of 48.9 billion euros in 2014. Its operations are divided into four business sectors: Mobility Solutions, Industrial Technology, Consumer Goods, and Energy and Building Technology. The Bosch Group comprises Robert Bosch GmbH and its more than 360 subsidiaries and regional companies in some 50 countries. If its sales and service partners are included, then Bosch is represented in roughly 150 countries. This worldwide development, manufacturing, and sales network is the foundation for further growth. In 2014, Bosch applied for some 4,600 patents worldwide. The Bosch Group’s strategic goal is to deliver innovations for connected life. 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.”

Further information is available online at www.bosch.com and www.bosch-press.com,http://twitter.com/BoschPresse.

PI8819 - March 09, 2015


/ Photo & Report provided by Bosch Press Release - sujung.jang@kr.bosch.com

/ MediaPaper.KR mediapaper@ymail.com  Sejin Oh

/ The News Article was written by receiving a Press Release.

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