Parktronic

Parktronic

Parktronic System (PTS), also called Acoustic Parking System (APS), Park Sensor, Park Radar or Park Distance Control (PDC), is a parking-assistance system installed on some Audi, Mercedes-Benz and BMW cars, amongst others.

Description

Parktronic uses ultrasonic proximity sensors embedded in the front and/or rear bumpers, to measure distance to nearby objects by timing how long it takes for sound waves to be reflected off them. [cite web|url=http://www.launch-techs.com/Support/Info/Benz-PTS.htm|title=Mercedes Benz Parktronic system (PTS)|accessdate=2008-07-13|publisher= [http://www.launch-techs.com Launch Tech] ] The system then emits an intermittent warning tone inside the vehicle to indicate how far the car is from an obstacle. As the distance decreases, the warning tone becomes faster, allowing the motorist to judge the distance from the vehicle to the object. The system may start emitting sounds when the car is approximately 1.0, 1.2, or 1.8 metres from the obstacle, and the car operating at speeds less than convert|9|mph|km/h. The tone becomes continuous when the distances closes to about Convert|300|mm. In some vehicles, it may also offer visual feedback through an LCD display on the dashboard. Parktronic can be switched off for situations such as stop-and-go traffic.

hortcomings

Since the system relies on the reflection of sound waves, it may not detect some items that are not flat or large enough to reflect sound, for example a narrow pole or a longitudinal object pointed directly at the vehicle.

ee also

* Blind spot monitor

References

External links

* [http://www.mbusa.com/brand/models/tech_demos/parktronic.html Parktronic] demonstration
* [http://www.bmw.com/com/en/insights/technology/technology_guide/articles/park_distance_control.html BMW Technology Guide: Park Distance Control]
* [http://www.google.com/patents?id=80ejAAAAEBAJ Parktronic US Patent]


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