The invention relates to an interface circuit suitable for a wheel speed sensor and a data recovery method, and the interface circuit comprises a current and voltage conversion unit, a data processing unit which is adaptively connected with the current and voltage conversion unit and is used for generating a wheel speed digital signal corresponding to a wheel speed voltage, and when the wheel speed digital signal is generated, the data processing unit is connected with the current and voltage conversion unit. Comparing the wheel speed voltage with the data recovery threshold voltage to generate a wheel speed digital signal based on a comparison state of the wheel speed voltage and the data recovery threshold voltage; when the wheel speed voltage is switched between the first voltage state and the second voltage state, corresponding data recovery threshold voltage is generated based on the voltage state of the wheel speed voltage and the level state of the wheel speed digital signal; the generated data restores that the threshold voltage matches the voltage state of the current wheel speed voltage and the level state of the wheel speed digital signal. According to the invention, current tracking can be effectively realized, and the precision and reliability of wheel speed recovery are improved.

    本发明涉及一种适于车轮速度传感器的接口电路及数据恢复方法,其包括:电流电压转换单元,数据处理单元,与所述电流电压转换单元适配连接,用于生成与车轮速度电压对应的车轮速度数字信号,其中,生成车轮速度数字信号时,将车轮速度电压与数据恢复阈值电压比较,以基于车轮速度电压与数据恢复阈值电压的比较状态生成车轮速度数字信号;车轮速度电压在第一电压状态与第二电压状态间切换时,则基于车轮速度电压的电压状态以及车轮速度数字信号的电平状态生成对应的数据恢复阈值电压,以使得生成的数据恢复阈值电压与当前车轮速度电压的电压状态以及车轮速度数字信号的电平状态匹配。本发明能有效实现电流跟踪,提高车轮速度恢复的精度与可靠性。


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    Title :

    Interface circuit suitable for wheel speed sensor and data recovery method


    Additional title:

    适于车轮速度传感器的接口电路及数据恢复方法


    Contributors:
    WANG DELONG (author) / ZHENG JIANG (author) / XIAO ZUONAN (author) / KUANG QIHE (author)

    Publication date :

    2025-01-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H03K PULSE TECHNIQUE , Impulstechnik / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G01P MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK , Messen der Linear- oder Winkelgeschwindigkeit, der Beschleunigung, der Verzögerung oder des Stoßes / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES



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