随着新能源汽车动力电池技术的持续迭代，电池热管理系统的控制性能与可靠性已成为制约新能源汽车续航能力及安全性能的核心因素。电动水泵作为热管理系统的关键执行部件，其驱动控制技术直接决定热管理系统的运行效能与稳定性。本文聚焦电动水泵驱动芯片这一核心器件，结合实际应用方案，系统剖析其技术需求与选型逻辑，重点研究车规级驱动芯片的可靠性、温度适应范围、控制精度、集成度及控制算法等关键指标，对比全集成、预驱 + 分离功率器件、“MCU+”三类主流架构方案的技术优劣，验证无传感器磁场定向控制算法的应用价值，并通过典型芯片案例分析技术落地成效。研究结果表明：高集成度单芯片方案已成为当前主流选型，-40~150℃宽温工作能力、完善的保护机制及低功耗特性是驱动芯片的核心性能要求；算法硬件化与智能化自适应控制将是未来技术演进的核心方向。本文研究可为动力电池电动水泵驱动芯片的选型设计与技术创新提供参考。

With the continuous iteration of power battery technology for new energy vehicles, the control performance and reliability of the battery thermal management system have become the core factors restricting the range and safety performance of new energy vehicles. The electric water pump, as a key component of the thermal management system, and its drive control technology directly determines the operational efficiency and stability of the thermal management system. This paper focuses on the core component of the electric water pump drive chip, combines actual application schemes, systematically analyzes its technical requirements and selection logic, and mainly studies the key indicators such as reliability, temperature adaptation range, control accuracy, integration degree, and control algorithm of automotive-grade drive chips. It compares the technical advantages and disadvantages of three mainstream architecture schemes: fully integrated, pre-drive+separated power devices, and "MCU+"; verifies the application value of sensorless field-oriented control algorithm, and analyzes the technical implementation effectiveness through typical chip case studies. The research results show that: the high-integration single-chip solution has become the current mainstream selection; the wide temperature working range of -40~150℃, complete protection mechanism, and low power consumption characteristics are the core performance requirements of the drive chip; algorithm hardwareization and intelligent adaptive control will be the core direction of future technological evolution. The research in this paper can provide a reference for the selection design and technological innovation of the drive chip for electric water pumps in power battery.