The invention provides a wheel speed detection device, a wheel speed detection system and a bicycle. The wheel speed detection device comprises a detection module, a delay reset module and a voltage division module, the voltage division module is electrically connected with the detection module and the delay reset module, the delay reset module is electrically connected with the detection module, and the voltage division module is used for being electrically connected with a power module and a control module. The detection module is used for detecting the magnetic field intensity and outputting a first signal when the magnetic field intensity is greater than or equal to a preset magnetic field intensity, the voltage division module is used for outputting a first voltage to the power supply end of the detection module when the detection module outputs the first signal, and the first voltage is within the working voltage range of the detection module. The delay reset module is used for pulling down the first voltage to a second voltage within a preset time when the detection module outputs the first signal, and the second voltage is smaller than the minimum voltage in the working voltage range. According to the wheel speed detection device provided by the embodiment of the invention, the problem of low detection sensitivity due to adoption of an all-pole Hall chip is solved.
本申请提供了一种轮速检测装置、轮速检测系统及自行车。上述轮速检测装置包括检测模块、延时复位模块和分压模块,分压模块分别与检测模块和延时复位模块电连接,延时复位模块与检测模块电连接,分压模块分别用于与电源模块和控制模块电连接。检测模块用于检测磁场强度,并在磁场强度大于等于预设磁场强度时输出第一信号,分压模块用于在检测模块输出第一信号时向检测模块的电源端输出第一电压,第一电压在检测模块的工作电压范围内。延时复位模块用于在检测模块输出第一信号时在预设时间内将第一电压拉低至第二电压,第二电压小于工作电压范围中的最小电压。本申请实施例提供的轮速检测装置解决了采用全极霍尔芯片存在检测灵敏度低的问题。
Wheel speed detection device, wheel speed detection system and bicycle
轮速检测装置、轮速检测系统及自行车
2023-12-12
Patent
Electronic Resource
Chinese
IPC: | G01P MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK , Messen der Linear- oder Winkelgeschwindigkeit, der Beschleunigung, der Verzögerung oder des Stoßes / B62J Fahrrad- oder Motorradsättel oder -sitze , CYCLE SADDLES OR SEATS / B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer |