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US 2022/0037100 A1Published application
Force detecting window lift system
AssigneeMethode Electronics, Inc.
InventorEric D. Sherriff
Life of this patent
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Abstract
A regulatory-compliant touch force detecting window lift switch for an automobile is described, in which a load cell, such as a strain gauge, a resistance bridge, or an amplifier, is used to detect a driver's or passenger's touch force, and software is used to assess whether to responsively send a control signal to a window lift motor controller to adjust the position of the automobile's windows.
Claims10
A touch force detecting window lift switch for use in an automobile comprising:
- at least one touch force detection component having an elongated top surface, an elongated bottom surface generally opposite the top surface, and an apex formed by a convergence of the top and the bottom surfaces, wherein the shape of the apex is sized to accommodate a user's fingertip curled around a portion of the apex such that it can reach at least a portion of the bottom surface in order to apply a touch force thereon using a pulling motion;
- and
- a printed circuit board positioned between the top and the bottom surfaces of the at least one touch force detection component and having at least one load cell integrated circuit and a microcontroller, wherein an end of the printed circuit board opposite the apex is substantially rigidly fixed and the other end of the printed circuit board closest to the apex is flexibly fixed such that an applied force on the top or the bottom surface of the at least one touch force detection on or near the apex is detectable by the load cell integrated circuit;
- wherein the load cell integrated circuit is configured to output an electrical signal indicative of the touch force applied to either the top or the bottom surface, and where the microcontroller is configured to receive and process the electrical signal.
1 more element
Dependencies are inferred from the claim text.