Invention Grant
- Patent Title: Seat heater and capacitive occupancy sensor combination
- Patent Title (中): 座椅加热器和电容式占用传感器组合
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Application No.: US14131348Application Date: 2012-06-29
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Publication No.: US09332592B2Publication Date: 2016-05-03
- Inventor: Laurent Lamesch
- Applicant: Laurent Lamesch
- Applicant Address: LU Luxembourg
- Assignee: IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A.
- Current Assignee: IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A.
- Current Assignee Address: LU Luxembourg
- Agency: Cantor Colburn LLP
- Priority: LU91838 20110708
- International Application: PCT/EP2012/062740 WO 20120629
- International Announcement: WO2013/007541 WO 20130117
- Main IPC: H05B1/02
- IPC: H05B1/02 ; H05B3/02 ; B60N2/00 ; B60N2/56
Abstract:
In a combined seat heater and capacitive occupancy sensor, the present invention proposes to perform two measurements with two different frequencies. In a first step, the carrier frequency is set to a first known carrier frequency, the complex current through inductance and unknown capacitance and complex drive voltage are measured. In a second step, the carrier frequency is set to a second known carrier frequency, the complex current through inductance and unknown capacitance and complex drive voltage are measured. The measured complex values are used in a formula which yields the unknown capacitance.
Public/Granted literature
- US20140131344A1 SEAT HEATER AND CAPACITIVE OCCUPANCY SENSOR COMBINATION Public/Granted day:2014-05-15
Information query
