A steering-wheel grip sensor includes: a driven electrode having a planar shape and extending along a rim of a steering wheel; a sensor electrode having a planar shape and opposed to the driven electrode; a sine-wave generator that supplies a sinusoidal voltage to the driven electrode; a charge amplifier that includes a feedback capacitive element, detects a change in an amount of charge generated according to capacitance of the sensor electrode, and outputs the change in the amount of charge as a change in a voltage; a multiplication processor that multiplies the sinusoidal voltage by an output voltage from the charge amplifier; an integrator that smooths, by integration, a result of multiplication by the multiplication processor; and a grip determiner that determines whether the steering wheel is gripped, according to a level of the result smoothed.


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    Title :

    STEERING-WHEEL GRIP SENSOR AND GRIP DETECTION METHOD


    Contributors:

    Publication date :

    2021-12-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge / G01V Geophysik , GEOPHYSICS / H03F Verstärker , AMPLIFIERS / H03M Codieren, Decodieren oder Codeumsetzung allgemein , CODING, DECODING OR CODE CONVERSION, IN GENERAL



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