Gas spring sensors (126; 268; 376; 500) including a millimeter wave radar source (272; 382; 502) and a target surface (282; 284; 284'; 388; 390) disposed in spaced relation to the radar source (272; 382; 502). The sensors (126; 268; 376; 500) also include a millimeter wave radar receptor (274; 384; 512) operable to generate a signal upon receiving the radar waves reflected off the target surface. The radar source is operable to direct millimeter-length radar waves of a frequency greater than or equal to 120 gigahertz (GHz) and a wavelength of 2.5 millimeters or less toward the target surface. A processor (122; 528) is communicatively coupled with the radar source and the radar receptor, and is operable to determine a displacement and a relative velocity using pulsed Doppler or continuous wave frequency modulation radar methods that rely on time of flight and frequency phase shifts of pulsed or continuous radar waves. Gas spring assemblies (102; 200; 304) including such sensors, and suspension systems (100) including one or more of such gas spring assemblies are also included.


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    Title :

    Gas spring sensors using millimeter wavelength radar and gas spring assemblies and suspension systems including same


    Contributors:

    Publication date :

    2024-02-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G01S RADIO DIRECTION-FINDING , Funkpeilung / B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge / F16F SPRINGS , Federn






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    INTERNAL GAS SPRING DISPLACEMENT SENSORS AS WELL AS GAS SPRING ASSEMBLIES AND SUSPENSION SYSTEMS INCLUDING SAME

    LOCKRIDGE LARRY L / MBUGUA SAMUEL N / CARRICO BRYCE A et al. | European Patent Office | 2021

    Free access