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A platform for research: civil engineering, architecture and urbanism
Motor current ripple processing method, counting method and anti-pinch system
The invention provides a motor current ripple processing method, a counting method and an anti-pinch system, and belongs to the technical field of automobile parts, and the method comprises the following steps: S1, connecting a sampling resistor in series on a motor output bus, and collecting the voltage of the sampling resistor; s2, performing primary filtering on the acquired current, and performing secondary filtering through a low-pass filter; s3, carrying out difference and amplification processing on the collected current values, and enabling the mean value to be close to the 0 axis; and S4, designing a software comparator, inputting the differentiated data into the comparator, outputting a high level when the differentiated data is larger than a set value, outputting a low level when the differentiated data is smaller than the set value, and converting the differentiated sinusoidal current into a square wave to be output. The current ripple processing method based on the software has the advantages that only one sampling resistor needs to be arranged on hardware, so that the hardware cost is low, pulse disturbance and high-frequency noise signals are filtered through primary filtering and secondary filtering, and therefore ripple-square wave software conversion is achieved.
本发明提供了一种电机电流纹波处理方法、计数方法以及防夹系统，属于汽车零部件技术领域，包括步骤如下：S1：在电机输出母线上串联一个采样电阻，并采集采样电阻的电压；S2：对采集电流进行一级滤波，通过低通滤波器进行二级滤波器；S3：对采集的电流值进行差分以及放大处理，使其均值位于0轴附近；S4：设计软件比较器，将差分后数据输入比较器，大于设定值输出高电平，小于设定值输出低电平，将差分后的正弦电流转为方波输出。本发明的有益效果为：提供了一种基于软件的电流纹波处理方法，在硬件上只需要设置一个采样电阻即可，所以硬件成本低，通过一级滤波与二级滤波过滤脉冲扰动与高频噪音信号，从而实现纹波‑方波的软件转换。
Motor current ripple processing method, counting method and anti-pinch system
The invention provides a motor current ripple processing method, a counting method and an anti-pinch system, and belongs to the technical field of automobile parts, and the method comprises the following steps: S1, connecting a sampling resistor in series on a motor output bus, and collecting the voltage of the sampling resistor; s2, performing primary filtering on the acquired current, and performing secondary filtering through a low-pass filter; s3, carrying out difference and amplification processing on the collected current values, and enabling the mean value to be close to the 0 axis; and S4, designing a software comparator, inputting the differentiated data into the comparator, outputting a high level when the differentiated data is larger than a set value, outputting a low level when the differentiated data is smaller than the set value, and converting the differentiated sinusoidal current into a square wave to be output. The current ripple processing method based on the software has the advantages that only one sampling resistor needs to be arranged on hardware, so that the hardware cost is low, pulse disturbance and high-frequency noise signals are filtered through primary filtering and secondary filtering, and therefore ripple-square wave software conversion is achieved.
本发明提供了一种电机电流纹波处理方法、计数方法以及防夹系统，属于汽车零部件技术领域，包括步骤如下：S1：在电机输出母线上串联一个采样电阻，并采集采样电阻的电压；S2：对采集电流进行一级滤波，通过低通滤波器进行二级滤波器；S3：对采集的电流值进行差分以及放大处理，使其均值位于0轴附近；S4：设计软件比较器，将差分后数据输入比较器，大于设定值输出高电平，小于设定值输出低电平，将差分后的正弦电流转为方波输出。本发明的有益效果为：提供了一种基于软件的电流纹波处理方法，在硬件上只需要设置一个采样电阻即可，所以硬件成本低，通过一级滤波与二级滤波过滤脉冲扰动与高频噪音信号，从而实现纹波‑方波的软件转换。
Motor current ripple processing method, counting method and anti-pinch system
一种电机电流纹波处理方法、计数方法以及防夹系统
SHEN TIEJUN (author) / ZHOU MAN (author) / SU HONGQIANG (author) / WANG YILE (author) / YANG CHENGZHI (author)
2023-06-23
Patent
Electronic Resource
Chinese
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