摘要
本文研究了基于奈奎斯特定理"过采样和抽取"原理与采用"曲线拟合"方式的温度计算方法,根据空调控制精度的要求,提出相应解决方案。具体的内容包括以下几个部分:①控制器温度控制和计算方面采用奈奎斯特定理"过采样和抽取"的原理,通过大量的采集信号以提高MCU中温度AD采样的精度。②温度换算采用"曲线拟合"的方式,来实现对温度的精确计算和控制。
In this paper,the principle of"oversampling and extraction"based on Nyquist's theorem and the temperature calculation method using"curve fitting"method are studied.According to the requirements of air conditioning control accuracy,the corresponding solutions are proposed.The specific content includes the following parts:①The controller temperature control and calculation method adopt the principle of Nyquist's theorem"oversampling and decimation",and improves the accuracy of temperature AD sampling in the MCU through a large number of acquisition signals.②Temperature conversion adopts the method of"curve fitting"to realize accurate calculation and control of temperature.
作者
董亚楠
黄正旺
许钦涛
DONG Ya-nan;HUANG Zheng-wang;XU Qin-tao(Yuxin Auto Thermal Management Technology Co.,Ltd.,XinXiang 453049,China)
出处
《汽车电器》
2019年第2期18-21,共4页
Auto Electric Parts
关键词
奈奎斯特定理
过采样和抽取
曲线拟合
Nyquist theorem
oversampling and decimation
curve fitting
