{"id":555,"date":"2010-11-05T10:44:48","date_gmt":"2010-11-05T10:44:48","guid":{"rendered":"http:\/\/www.atttraining.com\/?p=555"},"modified":"2014-03-27T14:06:13","modified_gmt":"2014-03-27T14:06:13","slug":"airbag-acceleration-sensor-bosch","status":"publish","type":"post","link":"http:\/\/tomdenton.org\/blog\/?p=555","title":{"rendered":"Airbag acceleration sensor (Bosch)"},"content":{"rendered":"

SMA560 MEMS acceleration sensor for airbag control units
\n<\/b>\u00b7<\/b> Two sensing axes with separate measuring-range selection<\/p>\n

\u00b7<\/b> Measurement values output in Bosch-SPI or Open-SPI format<\/p>\n

\u00b7<\/b> SOIC8 package replaces SOIC14n package<\/p>\n

The dual-axis SMA560 model for airbag control units marks Bosch\u2019s entry into the fifth generation of micro-mechanical acceleration sensors. As opposed to sensors of the previous generation, this new model, in its SOIC8 housing, combines space savings of more than 40 percent with an unprecedented variety of functions. This means that circuit designers can assign one of four measuring ranges to each sensing axis independently. Via the serial peripheral interface, the sensor outputs the measuring values in either Bosch-SPI or Open-SPI format. The SMA560 can currently be ordered as a sample. The SMA550 sensor is available with the same parameters but with only one sensing axis \u2013 both are RoHs-compliant.<\/p>\n

Flexible application<\/b>
\nWith two sensing axes, the SMA560 is ideal as a central sensor for the detection of frontal and side impacts. To record the different deceleration forces with even greater accuracy, application engineers can set the sensor\u2019s measuring ranges for the two axes as required \u2013 to \u00b135 g, \u00b148 g, \u00b170 g, or \u00b196 g. The sensor can be operated with an operating voltage of 3.3 or 5 volts and consumes significantly less power than its predecessor. The wide operating temperature range of \u201340 \u00b0C to +105 \u00b0C and a self-test integrated into the sensor\u2019s electronics ensure that the high standards of operating reliability required for airbag components are met. The bi-directional 16-bit SPI interface provides the measuring signal in 10-bit resolution.<\/p>\n

In the fifth generation as well, Bosch\u2019s sensor developers have elected to keep the tried and tested dual-chip solution within the sensor. Micro-machined microscopic springs and weights form the capacitive readings recorder; just one millimeter from this, an ASIC integrated into the sensor housing takes care of the signal conditioning and other electronic functions. Depending on the measurement values of the acceleration sensor, a control unit decides whether to activate the restraint systems, such as airbags and seat belt tensioners.<\/p>\n

Expertise of the leading MEMS sensor manufacturer<\/b>
\nFrom the very beginning, Bosch has played a key role in the development of MEMS technology (Micro-Electro-Mechanical Systems). The company has produced well over one billion MEMS sensors since production began in 1995. Some 220 million sensors left its Reutlingen plant in 2009, making Bosch the leading provider in the global MEMS sensor market. The company\u2019s product portfolio includes pressure, acceleration, and yaw-rate sensors for numerous applications in the automotive industry and consumer electronics. The first MEMS acceleration sensors for airbag systems were launched in 1996, at that stage still in the PLCC28 package. The package size has been reduced step by step as a result of continuous further development. The SOIC16 package premiered in 2002; the SOIC14 package followed in 2006, and now gives way to the even smaller SOIC8 variant. For more information on Bosch\u2019s sensor program, go to www.bosch-sensors.com<\/b><\/a>.<\/p>\n

Additional information can be accessed at www.bosch.com<\/b><\/a><\/i><\/p>\n","protected":false},"excerpt":{"rendered":"

SMA560 MEMS acceleration sensor for airbag control units \u00b7 Two sensing axes with separate measuring-range selection \u00b7 Measurement values output in Bosch-SPI or Open-SPI format \u00b7 SOIC8 package replaces SOIC14n package The dual-axis SMA560 model for airbag control units marks Bosch\u2019s entry into the fifth generation of micro-mechanical acceleration sensors. As opposed to sensors of […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[15],"tags":[],"class_list":["post-555","post","type-post","status-publish","format-standard","hentry","category-automotive"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p79TdE-8X","jetpack-related-posts":[{"id":1453,"url":"http:\/\/tomdenton.org\/blog\/?p=1453","url_meta":{"origin":555,"position":0},"title":"Crash sensors","author":"Tom Denton","date":"September 25, 2012","format":false,"excerpt":"Bosch has introduced the next generation of peripheral acceleration sensors for passenger protection systems in vehicles \u2013 the fifth since 1996. The key features of the new digital sensors include a wide measurement range of between \u00b1120 g and \u00b1480 g and the choice of communication via the SPI or\u2026","rel":"","context":"In "Automotive"","block_context":{"text":"Automotive","link":"http:\/\/tomdenton.org\/blog\/?cat=15"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1267,"url":"http:\/\/tomdenton.org\/blog\/?p=1267","url_meta":{"origin":555,"position":1},"title":"Engine management barometric pressure sensors","author":"Tom Denton","date":"December 1, 2011","format":false,"excerpt":"Figure 1 Bosch SMP480 barometric pressure sensor (Source: Bosch Media) The new Bosch SMP480 barometric pressure sensor is extraordinarily small. It takes up just one-quarter of the space of its predecessor. This makes it easier than ever to include it in the electronic control units used in automotive technology. This\u2026","rel":"","context":"In "Automotive"","block_context":{"text":"Automotive","link":"http:\/\/tomdenton.org\/blog\/?cat=15"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":257,"url":"http:\/\/tomdenton.org\/blog\/?p=257","url_meta":{"origin":555,"position":2},"title":"Steering angle sensor","author":"Tom Denton","date":"May 26, 2010","format":false,"excerpt":"\u00b7 Cost-optimized sensor for basic ESP\u00ae functions \u00b7 Signal processing in the system control unit \u00b7 Variable design provides wide scope of applications Bosch has extended its steering-angle sensor offering to include a new cost-effective model. The LWS6 meets all standard requirements of today's safety and comfort systems, and is\u2026","rel":"","context":"In "Automotive"","block_context":{"text":"Automotive","link":"http:\/\/tomdenton.org\/blog\/?cat=15"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":2607,"url":"http:\/\/tomdenton.org\/blog\/?p=2607","url_meta":{"origin":555,"position":3},"title":"Automated mobility – Bosch","author":"Tom Denton","date":"May 10, 2017","format":false,"excerpt":"Automated driving impacts the entire car: its powertrain, brakes, steering, display instruments, navigation, and sensors, as well as connectivity inside and outside the vehicle. The key to success is an in-depth understanding of all vehicle systems. Few automotive suppliers worldwide have as much knowledge in this area as Bosch, in\u2026","rel":"","context":"In "Automated driving"","block_context":{"text":"Automated driving","link":"http:\/\/tomdenton.org\/blog\/?cat=38"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/tomdenton.org\/blog\/wp-content\/uploads\/2017\/05\/composing_voraussehend_11-300x150.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":1420,"url":"http:\/\/tomdenton.org\/blog\/?p=1420","url_meta":{"origin":555,"position":4},"title":"Bosch ESP\u00ae plus","author":"Tom Denton","date":"May 24, 2012","format":false,"excerpt":"Bosch is currently rolling out series production of its new ESP\u00ae plus. With this version of Generation 9, many safety and assistance functions in addition to the anti-skid system can be integrated into the car. The high control precision of ESP\u00ae plus enables OEMs to integrate features such as adaptive\u2026","rel":"","context":"In "Automotive"","block_context":{"text":"Automotive","link":"http:\/\/tomdenton.org\/blog\/?cat=15"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1450,"url":"http:\/\/tomdenton.org\/blog\/?p=1450","url_meta":{"origin":555,"position":5},"title":"Radar Sensors","author":"Tom Denton","date":"September 23, 2012","format":false,"excerpt":"Bosch Engineering GmbH employs Bosch mid-range and long-range radar sensors for surround sensing in rail vehicles. \"In rail transportation, there are interlocking plants with switches and signals to make sure there are no accidents. But on many secondary lines and industrial railways, during shunting, or when passing through construction sites,\u2026","rel":"","context":"In "Automotive"","block_context":{"text":"Automotive","link":"http:\/\/tomdenton.org\/blog\/?cat=15"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"_links":{"self":[{"href":"http:\/\/tomdenton.org\/blog\/index.php?rest_route=\/wp\/v2\/posts\/555","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/tomdenton.org\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/tomdenton.org\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/tomdenton.org\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/tomdenton.org\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=555"}],"version-history":[{"count":1,"href":"http:\/\/tomdenton.org\/blog\/index.php?rest_route=\/wp\/v2\/posts\/555\/revisions"}],"predecessor-version":[{"id":1955,"href":"http:\/\/tomdenton.org\/blog\/index.php?rest_route=\/wp\/v2\/posts\/555\/revisions\/1955"}],"wp:attachment":[{"href":"http:\/\/tomdenton.org\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=555"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/tomdenton.org\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=555"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/tomdenton.org\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=555"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}