Proximity switch assembly and method therefor
AssigneeFord Global Technologies, LLC
InventorsPietro Buttolo, Stuart C. Salter, Satyanarayana Raju Vemulapati, James Stewart Rankin, II
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Abstract
A proximity switch assembly is provided. The proximity switch assembly includes a proximity switch comprising a proximity sensor providing an activation field, and control circuitry monitoring a signal responsive to the activation signal and determining an activation of the switch, detecting a first peak value above a threshold when the signal is not stable followed by a drop and a subsequent rise to a second peak value followed by a sharp drop.
Claims17
A proximity switch assembly comprising:
- a proximity switch comprising a proximity sensor providing an activation field;
- and
- control circuitry monitoring a signal responsive to the activation signal and determining an activation of the switch based on detecting a first peak value above a threshold when the signal is not stable, followed by a drop and a subsequent rise to a second peak value followed by a sharp drop.
A method of determining activation of a proximity switch comprising:
- generating an activation field with a proximity sensor;
- monitoring amplitude of a signal generated in response to the activation field;
- detecting a first peak value of the signal when the signal is not stable, followed by a drop in the signal, then a subsequent rise to a second peak value, followed by a sharp drop below a baseline value;
- and
- determining an activation of the switch based on the detecting step.
Dependencies are inferred from the claim text.