基于霍尔元件的电动车力矩传感系统设计

The design of electric torque sensing system of Holzer based on component

针对电动车中现有力矩传感器存在模拟信号采样数量少、速度慢以及灵敏度低的问题,提出一种基于霍尔元件的力矩传感器设计方法。该方法通过在内外磁环上布置两对霍尔元件,有效提高采集信号的数量和速度。实验结果表明,相位差在同一形变量,不同周期条件下的结果趋于稳定,在同一周期条件下,随着形变量的增加,相位差逐渐增加。此结论验证了本系统的有效性。

In view of the existing torque sensor in the presence of analog signal electric quantity is less, the speed is slow, and the problem of low sensitivity of sampling, put forward a kind of torque sensor based on component design method of Holzer. The method through the arrangement of two pairs of Holzer elements in the internal and external magnetic ring, effectively improve quantity signal acquisition and speed. The experimental results show that, the phase difference in the same shape variables, different cycle conditions results tend to be stable, in the same cycle conditions, as the strain increases, the phase difference gradually increased. This conclusion proves the effectiveness of this system.