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公开(公告)号：US11706990B2
公开(公告)日：2023-07-18
申请号：US15988917
申请日：2018-05-24
CPC分类号： H10N30/302 , G01L25/00 , G01N29/30 , G01R35/005
摘要： In a method for calibrating at least one sensor, wherein the sensor includes at least one piezoelectric element with at least one electrode, and wherein at least one electrode is embodied as a measurement electrode, it is provided as essential to the invention that an electrical excitation voltage is applied to at least one further electrode of the piezoelectric element, embodied as a calibration electrode, to create a mechanical deformation of the piezoelectric element, that the voltage induced by the deformation of the piezoelectric element is captured with at least one measurement electrode, and that the applied excitation voltage and captured voltage are compared.
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2.发明授权公开(公告)号：US11555760B2
公开(公告)日：2023-01-17
申请号：US17006010
申请日：2020-08-28
发明人： Thomas Niemann , Bastian Kanning
摘要： The invention relates to a method and a device for determining particulate emissions in the driving operation of a vehicle, in particular of a motor vehicle. According to the invention, provision is made that the device has a sensor system and a control unit and that in driving operation the sensor system and the control unit jointly undertake the function of particulate matter sensors. Here, the sensor system senses driving operation values on the vehicle. From the sensed driving operation values and by means of correlations of driving operation values with particulate matter values determined and stored in advance in the control unit, the control unit estimates the particulate emissions from tyre abrasion of the vehicle. Finally, the invention relates to a vehicle with the device according to the invention.
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公开(公告)号：US10989682B2
公开(公告)日：2021-04-27
申请号：US16186220
申请日：2018-11-09
摘要： In a method for capturing a condition of a surface of a road on which a vehicle is travelling, wherein at least one signal produced as a result of moisture thrown up from the road is captured by means of at least one sensor apparatus arranged on the vehicle, wherein the sensor apparatus includes at least one sensor device, and wherein the captured signal is evaluated by means of at least one evaluation device attached to the vehicle, it is provided as essential to the invention that at least one physical parameter of the thrown up moisture is captured by at least one sensor device, and that a conclusion is reached regarding the salt content of the moisture which reaches the sensor apparatus on the basis of at least one captured physical parameter, and a conclusion is reached regarding the condition of the road based on the salt content. The invention relates further to a sensor apparatus for a vehicle for capturing a condition of a surface of a road on which a vehicle is travelling having at least one sensor apparatus for detecting moisture thrown up by the vehicle tyres.
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