Bosch's modern vehicle electronics make an impression with highly developed technology. One example is their remarkable degree of miniaturization: in Airbag System ICs, for example, this enables several peripheral functions to be integrated into just one IC. MEMS sensors, whose components function at a micrometric level, are fitted with the highest level of measurement sensitivity possible to pick up on linear and rotary motion as well as pressure. Their unbelievably fast reaction time offers significant, and sometime life-saving advantages. With the use of MEMS crash sensors, an airbag can be activated in roughly 40 milliseconds – for comparison, the time taken for a human eye to blink once is roughly 100 milliseconds. In current vehicle models, up to 50 MEMS sensors are used. Additionally, electronics also help make driving more enjoyable: for example, they provide more power while ensuring lower fuel consumption.
In critical situations, often split-second action determines whether a crash will occur or not and if an accident will bring slight or heavy damage. Highly sensitive electronics react to dangerous situations in a matter of milliseconds and can often prevent the worst from happening. For example, SMA6xy acceleration sensors can recognize an impending collision in the blink of an eye and their signals ensure that the right airbag is triggered when needed. Or the inertial sensor SMI700, which senses when the vehicle is starting to break out in a bend and triggers the ESP® system, which helps to intervene with appropriate countermeasures.
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Electronic systems are in large part responsible for the kinds of in-vehicle conveniences we never want to do without. Signals from the SMB431 and SMB433 acceleration sensors allow active regulation of the suspension, which lets you choose between a comfortable or sporty driving style. The body control module controls the interior lighting, heating, and keyless access control and allows for user-specific settings. The SMP14x medium-pressure sensor for automatic transmissions monitors oil pressure in the hydraulic actuators; with a reaction time of less than a millisecond, it ensures particularly fast and precise gearshifting.
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Good engine management is a question of delivering the best possible power with the lowest possible fuel consumption and emissions in any operating state. This is made possible through the smart engine management system in combination with connected sensor data. A good example is the barometric pressure sensor SMP580. This MEMS sensor measures the current atmospheric pressure and then delivers the necessary data for obtaining the optimum air-fuel mix to the engine management system. In this way, the engine can be used efficiently in all driving conditions, whether in the mountains or on a coastal road.
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Bosch has been manufacturing electronic components for cars since the 1950s. Today Bosch is among the top manufacturers of semiconductors for automobiles and is the world's leading manufacturer of MEMS sensors.
Bosch produces millions of sensors daily; these help provide drivers with the highest level of vehicle safety and comfort and reduced fuel consumptions and emissions.