The invention relates to the field of automobile steering wheels, and discloses a steering wheel hand-leaving detection system which can determine whether a steering wheel leaves a hand or not according to the value of voltage or the change of the value. The system comprises an alternating current source which is configured to output alternating current with a constant current size at a first frequency; a first electrode layer and a second electrode layer; the detection circuit is configured to detect the voltage of the first frequency, and the two input ends of the detection circuit are coupled to the two output ends of the alternating current source respectively; two output ends of the alternating current source are respectively coupled to the first electrode layer and the second electrode layer; at least one of the first electrode layer and the second electrode layer is configured on the steering wheel; when a hand holds the steering wheel, the alternating current source, the first electrode layer, the human body and the second electrode layer form an alternating current loop; when the hand leaves the steering wheel, the AC loop is disconnected.
本申请涉及汽车方向盘领域,公开了一种方向盘离手检测系统,可以根据电压的值或值的变化确定是否方向盘离手。该系统包括:交流电流源,被配置为输出第一频率的电流大小恒定的交流电流;第一电极层和第二电极层;检测电路,被配置为检测第一频率的电压,检测电路的两个输入端分别耦合到交流电流源的两个输出端;交流电流源的两个输出端分别耦合到第一电极层和第二电极层;第一电极层和第二电极层中至少一个被配置在方向盘上;当人手握住方向盘时,交流电流源、第一电极层、人体和第二电极层形成交流回路;当人手离开方向盘时,交流回路断开。
Steering wheel hand-leaving detection system
一种方向盘离手检测系统
2023-04-28
Patent
Elektronische Ressource
Chinesisch
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
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