Driver Window not Dropping

[denverpete]

Originally Posted by Strawfordt

The glass drop function in the window regulator and the express up function are both controlled with a logic controller and hall effect sensors in the motor that send a signal to the controller allowing the controller to count the rotations of the motor armature. If you can detect time and speed of the motor then you should know position.

Ahhh.... But you cannot simultaneously know an objects position AND momentum - Heisenburg Uncertainty Principle

YES! I got to use quantum physics today.... I think I'm going home now....

[Strawfordt]

Originally Posted by denverpete

Ahhh.... But you cannot simultaneously know an objects position AND momentum - Heisenburg Uncertainty Principle

YES! I got to use quantum physics today.... I think I'm going home now....

Ahhhh... right you are. However, i said speed not momentum. The controller counts the time between the revolutions of the motor armature and determines speed.

For the record this is a general description of anti pinch window regulator technology.

I have never workedd on a Porsche project. I have direct experience with Fiat, Alfa, Lancia, Opel, GM, Ford, DCX & Honda. The technology for cable and drum W/R's is basically the same from all parts OEM's. Especially true if you have to control positon of the regulator. There are some other anti pinch technologies but they are not that common.