Volkswagen offers Bosch anti-drowsiness feature in Passat Alltrack

Article by Christian Andrei, on May 1, 2012

With the Bosch Driver Drowsiness Detection system, the early signs of fatigue will be detected while driving before a critical situation happens. Microsleep and fatigue at the steering wheel are two of the frequent causes of serious accidents. The system will monitor steering movements and advise the one behind the wheel to take a break.

This vital information is communicated by the steering angle sensor or by the electric power steering system of the vehicle. The steering angle sensor is part of the vehicle's ESP anti-skid system. This means that it would be cost-effective to fit the feature, which aids in further boosting road safety.

The Bosch Driver Drowsiness Detection is useable in light commercial vehicles and in passenger cars. It can also be combined with a range of control units in automobiles. In 2010, it was launched in the new Volkswagen Passat as a standard feature. The new Passat Alltrack is the latest vehicle to be fitted with the system.

In various studies, the influence of fatigue on accidents has been shown. The American Automobile Association (AAA) published in 2010 an analysis of the accident data, which the National Highway Traffic Safety Administration (NHTSA) has collected in the United States.

The assessment revealed that overtired individuals were driving in 17% of all deadly accidents in the nation. Fatigue and fading concentration compromise the response time and steering behavior of the driver.

When fine motor skills depreciate, the steering behavior becomes less precise. The driver is also observed to frequently make small adjustments in its steering to correct errors.

This recent driver drowsiness detection feature is founded on an algorithm which starts recording the steering behavior of the driver at the start of the trip. It then identifies changes throughout the course of long trips as well as the level of fatigue of the driver.

Usual signs of diminishing concentration are durations in which the driver is barely maneuvering matched with slight but abrupt and quick steering movements to maintain the vehicle on track.

Topics: vw, bosch, vw passat, alltrack

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