Method for detecting liquid on a windowpane
    14.
    发明公开

    公开(公告)号:US20240067131A1

    公开(公告)日:2024-02-29

    申请号:US18456345

    申请日:2023-08-25

    IPC分类号: B60S1/08 G01V8/12

    CPC分类号: B60S1/0833 G01V8/12

    摘要: A method for detecting liquid on a windowpane in which radiation is emitted by at least one radiation emitter, the radiation is coupled into the windowpane via at least one optical element, and, after reflection in the windowpane, the radiation is coupled out of the windowpane. The radiation which is coupled out of the windowpane is captured in single measurements. A measurement cycle is formed from a multiplicity of single measurements. An average value is calculated from the measurement results of a measurement cycle. The average value is used a reference value for the single measurements of the subsequent measurement cycle currently in progress. The differences between the measured values of the single measurements of a measurement cycle currently in progress and the reference value are determined. The differences between the measured values of the single measurements of the measurement cycle currently in progress and the reference value are evaluated statistically. A conclusion is drawn regarding the state of coverage with liquid of the measuring section on the windowpane from the statistical evaluation.

    Droplet sensor with a protective film

    公开(公告)号:US11846585B2

    公开(公告)日:2023-12-19

    申请号:US17663881

    申请日:2022-05-18

    申请人: Hideo Kurosawa

    发明人: Hideo Kurosawa

    IPC分类号: G01N21/43 B60S1/08

    摘要: A droplet sensor includes an optical cover having a curved surface that forms a part of a spheroid, a protective film that covers the curved surface of the optical cover, a light source provided at a first focal point of an ellipse facing the curved surface, and a photodetector provided at a second focal point of the ellipse. The refractive index of the protective film is greater than the refractive index of a liquid to be detected. A sensing region is determined by a range of an incident angle at which a light beam emitted from the light source and incident onto the curved surface is totally reflected at the interface between the protective film and a gas, and is not totally reflected at the interface between the protective film and the liquid to be detected.

    Rotating glass sensor cleaning system and methods of operation

    公开(公告)号:US11834008B2

    公开(公告)日:2023-12-05

    申请号:US16783515

    申请日:2020-02-06

    申请人: Pony AI Inc.

    摘要: Described herein are sensor assembly cleaning systems and apparatuses that are adapted to rotate a transparent surface of a sensor assembly independently of a housing of the sensor assembly in order to disperse water, moisture, debris, or the like from the surface. The transparent surface may be a glass window that provides a camera of the sensor assembly with a field-of-view of an external environment. Sensor data captured from various on-board vehicle sensors such as moisture data, image data, vehicle velocity data, or the like can be evaluated against various criteria to determine when and for how long to rotate the transparent surface. Sensor data can be evaluated over a period of time to identify patterns or trends relating to one or more vehicle parameters. An activation schedule for initiating and ceasing rotation of the transparent surface can be determined based on such patterns/trends.

    MOTOR DEVICE, WIPER DEVICE, AND MOTOR CONTROL METHOD

    公开(公告)号:US20230373442A1

    公开(公告)日:2023-11-23

    申请号:US18034363

    申请日:2022-07-21

    发明人: Ryo OHORI

    IPC分类号: B60S1/08 H02K11/33

    CPC分类号: B60S1/0807 H02K11/33

    摘要: A motor device includes a motor having three-phase windings; a rotation speed detector detecting a rotation speed of the motor; a drive signal generator controlling a duty ratio not to exceed a duty ratio upper limit value, and performing control for an energization angle of each phase and performing advance angle control shifting the phase from a reference position to generate a drive signal corresponding to the duty ratio; and an inverter supplying alternating current to the windings based on the drive signal. The drive signal generator includes an advance angle/energization angle controller changing the energization angle to 120 degrees or less while performing advance angle control when the duty ratio is equal to or greater than the duty ratio upper limit value and the rotation speed is equal to or less than a predetermined threshold value in a state where the energization angle is greater than 120 degrees.

    APPARATUS, SYSTEM, AND METHOD FOR RECORDING AND RENDERING MULTIMEDIA

    公开(公告)号:US20230364961A1

    公开(公告)日:2023-11-16

    申请号:US18358403

    申请日:2023-07-25

    摘要: A system may comprise a looper. The looper may further comprise an arrangement module. The arrangement module may arrange audio data into at least one of the following: a song comprised of at least one song part, at least one track within the at least one song part, and at least one layer within the at least one track. The system may also comprise an output module, the output module may be configured to enable playback of the arranged audio data. The system may also comprise an input module that may be configured to record subsequent audio data during the playback of the arranged audio data from the output module. The system may also comprise a processing module configured to modify playback of the arranged audio data. The system may also comprise an external device configured to control operation of at least one module associated with the looper.