The embodiment of the invention provides a position acquisition method and a position acquisition system based on an inductance type position sensor. The method comprises the steps that an MCU controls an inductance type position sensor to charge and discharge through a charge and discharge control unit and receives the environment temperature collected by a temperature sensor; the MCU obtains a third terminal voltage signal in the charging and discharging process; the MCU determines the current sliding block position of the inductance type position sensor according to the slope change of the third end voltage signal; a sliding block position error corresponding to the environment temperature is obtained, the current sliding block position is calibrated according to the sliding block position error, and the calibrated sliding block position is obtained; and the MCU determines the position of a target component connected with the sliding block of the inductance type position sensor according to the position of the calibration sliding block. According to the method, the measurement value of the inductance type position sensor is corrected according to the temperature change, the measurement precision of the inductance type position sensor is improved, and accurate position and distance information is provided for an automatic driving system.
本申请实施例提供基于电感型位置传感器的位置采集方法及位置采集系统。该方法包括:MCU通过充放电控制单元控制电感型位置传感器充放电,并接收温度传感器采集的环境温度;MCU获取在充放电过程中的第三端电压信号;MCU根据第三端电压信号的斜率变化确定电感型位置传感器的当前滑块位置;获取环境温度对应的滑块位置误差,并根据滑块位置误差对当前滑块位置进行校准,得到校准滑块位置;MCU根据校准滑块位置,确定与电感型位置传感器的滑块连接的目标部件位置。该方法根据温度的变化对电感型位置传感器的测量值进行校正,提高了电感型位置传感器的测量精度,为自动驾驶系统提供准确的位置和距离信息。
Position acquisition method and position acquisition system based on inductance type position sensor
基于电感型位置传感器的位置采集方法及位置采集系统
25.04.2025
Patent
Elektronische Ressource
Chinesisch
IPC: | G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS , Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / G01K MEASURING TEMPERATURE , Messen der Temperatur / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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