ASIL-D Compliant Battery Monitoring IC with High Measurement Accuracy and Robust Communication

📋 论文概要

该论文提出了一款符合ASIL-D汽车安全完整性等级要求的电池监测集成电路，用于电动汽车电池管理系统。该芯片实现了高精度的电池电压/电流测量和鲁棒的通信，旨在提升SOC/SOH估计的准确性和安全性。

💡 主要创新点

• 第一款符合ASIL-D标准的电池监测IC，集成了功能安全机制。
• 采用高精度测量架构，实现低误差的电压/电流检测。
• 设计了鲁棒的通信接口，确保在苛刻汽车环境下的数据传输可靠性。

🏷 关键词

📄 原文摘要

Donghyeon Kim2, Youngwoon Ko2, Jin-Yong Jeon2, Jooho Lee2, Young-Suk Son2, Sang-Gug Lee1, Kyeongha Kwon1 Korea Advanced Institute of Science and Technology, Daejeon, Korea Autosilicon, Daejeon, Korea 1 2 Electric vehicles (EVs) use numerous Li-ion battery cells to obtain the battery pack voltage of hundreds of volts and capacities of tens of kWh. EV battery management systems (BMSs) monitor and control the state-of-charge (SOC) and state-of-health (SOH) of each battery cell to improve energy efficiency and address safety concerns while charging and discharging. To estimate the SOC/SOH from the open-circuit-voltage (OCV) of a battery cell, precise measurements of voltage (VCELL) and temperature (TCELL) are required. In a master-slave architecture, among the various BMS topologies, a slave BMS measures VCELL and TCELL, balances the targeted cells, and communicates with a master BMS that performs SOC/SOH computation and communications with the EV

👥 作者与机构

Jong-Kyoung Lee1,2, Sunsik Woo2, Wooyoung Jeong2, Kwang-Seok Oh2,