锂电池健康状态(state of health,SOH)的在线估计是锂电池管理系统中必不可少的一部分。大部分基于数据驱动的锂电池SOH估计方法由于计算量较大,难以在锂电池管理系统微控制器中在线使用。因此,文中提出基于新型健康特征的锂电池SOH快...锂电池健康状态(state of health,SOH)的在线估计是锂电池管理系统中必不可少的一部分。大部分基于数据驱动的锂电池SOH估计方法由于计算量较大,难以在锂电池管理系统微控制器中在线使用。因此,文中提出基于新型健康特征的锂电池SOH快速估计方法。首先,分析锂电池的充电数据,基于已有的锂电池恒流充电过程的等压升时间(time interval of an equal charging voltage difference,TIECVD)健康特征,构建一个同充电电压起点、同充电时间间隔的健康特征。其次,文中提出基于新型健康特征和多元线性回归(multiple linear regression,MLR)的锂电池SOH快速估计方法。然后,通过对牛津锂电池老化数据集和美国国家航空航天局锂电池随机使用数据集进行分析,以0.01 V步长遍历恒流充电电压区间,以皮尔逊相关系数最大为目标,确定锂电池最优的起始电压。最后,考虑不同充电时间间隔,利用最小二乘(ordinary least squares,OLS)回归分析方法,确定锂电池最优充电时间间隔参数。使用2个数据集划分的训练集建立MLR模型,使用2个数据集划分的验证集对文中方法进行验证。实验结果表明,文中基于新型健康特征方法可极大缩减计算量,并且可以在保障预测精度的前提下实现锂电池SOH的快速估计。展开更多
在课程思政育人理念的指引下,高职英语课程思政教学研究受到了广泛关注。为实现英语教学与育人相结合,如何确定高职英语课程思政的教学方法,将教学方法与思政理念有机融合仍亟待探讨。本文以五年一贯制新型高职英语课程为对象,分析此类...在课程思政育人理念的指引下,高职英语课程思政教学研究受到了广泛关注。为实现英语教学与育人相结合,如何确定高职英语课程思政的教学方法,将教学方法与思政理念有机融合仍亟待探讨。本文以五年一贯制新型高职英语课程为对象,分析此类高职院校课程思政的教学优势和挑战,尝试提出教学方法和实施要点,将课程思政贯穿于教学过程中以提升育人效果。Under the guidance of the ideological and political education concept in curriculum, the research on ideological and political education in English courses of higher vocational education has received widespread attention. In order to achieve the integration of English teaching with educating people, how to determine the teaching methods for ideological and political education in English courses of higher vocational education, and how to organically integrate these methods with the ideological and political concept remain urgent topics for discussion. Taking the new five-year integrated higher vocational English course as the object of study, this paper analyzes the teaching advantages and challenges of ideological and political education in such vocational colleges’ courses, and attempts to propose teaching methods and implementation key points, aiming to integrate ideological and political education throughout the teaching process to enhance the educational effect.展开更多
文摘锂电池健康状态(state of health,SOH)的在线估计是锂电池管理系统中必不可少的一部分。大部分基于数据驱动的锂电池SOH估计方法由于计算量较大,难以在锂电池管理系统微控制器中在线使用。因此,文中提出基于新型健康特征的锂电池SOH快速估计方法。首先,分析锂电池的充电数据,基于已有的锂电池恒流充电过程的等压升时间(time interval of an equal charging voltage difference,TIECVD)健康特征,构建一个同充电电压起点、同充电时间间隔的健康特征。其次,文中提出基于新型健康特征和多元线性回归(multiple linear regression,MLR)的锂电池SOH快速估计方法。然后,通过对牛津锂电池老化数据集和美国国家航空航天局锂电池随机使用数据集进行分析,以0.01 V步长遍历恒流充电电压区间,以皮尔逊相关系数最大为目标,确定锂电池最优的起始电压。最后,考虑不同充电时间间隔,利用最小二乘(ordinary least squares,OLS)回归分析方法,确定锂电池最优充电时间间隔参数。使用2个数据集划分的训练集建立MLR模型,使用2个数据集划分的验证集对文中方法进行验证。实验结果表明,文中基于新型健康特征方法可极大缩减计算量,并且可以在保障预测精度的前提下实现锂电池SOH的快速估计。
文摘在课程思政育人理念的指引下,高职英语课程思政教学研究受到了广泛关注。为实现英语教学与育人相结合,如何确定高职英语课程思政的教学方法,将教学方法与思政理念有机融合仍亟待探讨。本文以五年一贯制新型高职英语课程为对象,分析此类高职院校课程思政的教学优势和挑战,尝试提出教学方法和实施要点,将课程思政贯穿于教学过程中以提升育人效果。Under the guidance of the ideological and political education concept in curriculum, the research on ideological and political education in English courses of higher vocational education has received widespread attention. In order to achieve the integration of English teaching with educating people, how to determine the teaching methods for ideological and political education in English courses of higher vocational education, and how to organically integrate these methods with the ideological and political concept remain urgent topics for discussion. Taking the new five-year integrated higher vocational English course as the object of study, this paper analyzes the teaching advantages and challenges of ideological and political education in such vocational colleges’ courses, and attempts to propose teaching methods and implementation key points, aiming to integrate ideological and political education throughout the teaching process to enhance the educational effect.
