The invention relates to a capacitive sensor device (10) for detecting the presence of a human body part in a detection region of the sensor device (10), to a steering wheel (100) comprising a capacitive sensor device (10), to a method for operating a capacitive sensor device (10) or a steering wheel (100), and to a vehicle comprising a capacitive sensor device (10). The sensor device (10) comprises a first sensor electrode (11) having a first electrode portion (21), a second sensor electrode (13) having a second electrode portion (22), and a second electrode portion (22) for determining a measurement variable (UMess, IMess; b < 1 > to B < 2 >; b2-B1) of at least one first sensor electrode (11), the measured variable being based on a current difference (I1-I2; B1-B1) between a first current (I1) flowing in a first electrode portion (21) of the at least one first sensor electrode (11) and a second current (I2) flowing in a second electrode portion (22) of the second sensor electrode (13); i2-I1), the measuring device (30) having an electronic coil (31) which is designed in such a way that a first electrode part (21) of the first sensor electrode (11) and a second electrode part (22) of the second sensor electrode (13) are arranged in each case at least partially relative to one another and relative to the coil (31) and are coupled to the coil (31) in such a way that the first electrode part (21) of the first sensor electrode (11) and the second electrode part (22) of the second sensor electrode (13) are coupled to the coil (31) on the basis of the current difference (I1-I2; i2-I1) is measured using a current difference (I1-I2; I1-I2) between a first current (I1) flowing in the first electrode portion (21) and a second current (I2) flowing in the second electrode portion (22). I2-I1), generated or producible in the coil (31).
本发明涉及一种用于检测人体部分在传感器设备(10)的检测区域中的存在的电容式传感器设备(10),一种包括电容式传感器设备(10)的方向盘(100),一种用于操作电容式传感器设备(10)或方向盘(100)的方法,以及一种包括电容式传感器设备(10)的车辆。传感器设备(10)包括具有第一电极部分(21)的第一传感器电极(11)、具有第二电极部分(22)的第二传感器电极(13)和用于确定测量变量(UMess、IMess;B1‑B2;B2‑B1)的测量装置(30),该测量变量基于在至少一个第一传感器电极(11)的第一电极部分(21)中流动的第一电流(I1)和在第二传感器电极(13)的第二电极部分(22)中流动的第二电流(I2)之间的电流差(I1‑I2;I2‑I1),其中该测量装置(30)具有电子线圈(31),该线圈(31)以这样的方式设计,并且第一传感器电极(11)的第一电极部分(21)和第二传感器电极(13)的第二电极部分(22)在每种情况下至少部分地相对于彼此以及相对于线圈(31)布置并且耦合至线圈(31),使得基于电流差(I1‑I2;I2‑I1)的测量变量是使用在第一电极部分(21)中流动的第一电流(I1)和在第二电极部分(22)中流动的第二电流(I2)之间的电流差(I1‑I2;I2‑I1)、在线圈(31)中生成或可生成的。
Capacitive sensor device, steering wheel comprising capacitive sensor device, method of operating capacitive sensor device and/or steering wheel, and vehicle comprising capacitive sensor device
电容式传感器设备、包括电容式传感器设备的方向盘、操作电容式传感器设备和/或方向盘的方法以及包括电容式传感器设备的车辆
2023-09-15
Patent
Electronic Resource
Chinese
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
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