Friday, 11 April 2014

BAT Appt 6212 Technology Project (Automotive)

week 7
11th March 2014

Was the day of our presentation, we started describing the 3 sensors for the input we are going to use. searching on them made me learn many things like the way they performs there functions and how they work as starting from the very first sensor which is

VSS (Vehicle Speed Sensor): As we know seat belt is one of the most safest part when it comes to be safety in vehicle, and all the vehicles in automotive industry use it.By the safety belt designers in recent years a Reed Switch sensor has been discovered as being the most reliable and best way to detect the engagement of seat belt.
Features/Functions:
Can activate & control the switching function from the one side of the seat belt buckle.
Is designed to handle the high shock environments
Can be operated in dirty environments
Is hermetically sealed
Lots of reliable switching operation
Reliable switching

Dynamically tested contacts
> Second sensors which i searched n presented was the SOS
SOS(Seat Occupany Sensor)The occupancy sensor consist of the flexible sensor mat, which in inserted or installed into the vehicle seats.The mat consists of two sandwiched carriers sheets held together.
Increase pressure on the mat will cause the electrical resistance change, which informs the system that the seat is occupied or not.
The vacant or occupied seat will correspond to an open or short circuit.
The occupancy on the seat is only detected for higher weight depending on the specs mostly 40 kg.
The occupant detection technology will not affected by the
Weight,  seat belt tension, or movement of the passenger.
Furthermore, the system will not be triggered by inanimate objects placed on the seat.
FEATURES OF SOS:
·Senses immediate presence of pressure applied to pad.
·Bend Sensor / Potentiometer.
·Small size is ideal for embedded applications.
·User defined thresholds for alerts and notifications
>And 3rd sensor was the VSS(vehicle speed sensor which was performed by my group mate) 

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