CONTROL DEVICE FOR A MOTOR VEHICLE
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United States of America Patent
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Issued Date -
Apr 7, 2011
app pub date -
Sep 13, 2010
filing date -
Sep 16, 2009
priority date (Note) -
Abandoned
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Abstract
A control device for a motor vehicle, wherein the control device serves to monitor user access. The system has a piezo sensor which is arranged for pressure or touch detection by a user and connected to a pressure loaded area. A charging circuit is provided, which charges the piezo sensor until a previously specified voltage parameter is reached. A recording and analysis system transforms the voltage that is applied to the piezo sensor into digital parameters and records a series of transformed voltage parameters. A control system is connected to the piezo sensor with an activatable input, and activates the analysis system. A microcontroller is arranged in the control system, and a signal to the activatable input triggers an interrupt in the microcontroller.
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