新能源汽车专业英语2-3

New Words and Phrases
architecture bidirectional
['ɑ:kɪtektʃə(r)] [ֽbaɪdə'rekʃənl]
n.结构 dj.双向的
degrade elaborate emerging underbody
[dɪ'greɪd] [ɪ'læbərət] [i'mə:dʒɪŋ] ['ʌndəֽbɒdɪ]
负极 镍镉(Ni-Cd)电池 镍氢(NiMH)电池 氧化还原反应 正极 钢筒，钢瓶
提问
balancing unit battery controller battery management system（BMS） cell controller HV battery pack remaining capacity sensing unit
描述电池管理系统的功能和基本原理？
the primary functions of a BMS are: • Under-voltage and over-voltage protections; • Short circuit protection; • Thermal protection; • Cell balancing; • Controlling battery charging and discharging; • Determining battery SoC and SoH; • Safety protection.
1.掌握重要的电池基本术语； 2.掌握锂离子与镍氢电池以及管理系统的结构、原理 和维护； 3.了解电池充电技术
1.重点：英文专业术语； 2.难点：基本术语
回顾
Chapter 2 Power Batteries of EVs 电动汽车动力电池
上次课学习内容
2.2 Construction and Principle 结构与原理 2.3 Battery Management and Cooling Systems 电 池管理与冷却系统（2学时）
vt.降低 adj.复杂的 adj.新兴的 n.底部
unidirectional [ֽju:nɪdɪ'rekʃənəl] adj.单向的
2.4 Battery Charging Technology 电池充电技术
charging rate diode bridge flux leakage off-board charging onboard charging parking space power electronics
2.4 Battery Charging Technology 电池充电技术
Both onboard and off-board chargers can provide unidirectional or bidirectional power flows. Typically, unidirectional chargers have simpler hardware architecture and only allow the grid to charge the battery. Usually, unidirectional chargers employ a diode bridge, a filter, and DC-DC converters. A generic layout of these chargers is presented in Figure 2.12. Bidirectional chargers, in contrast, enable the vehicle to inject power back to the grid, which allows the PEVs to act as mobile storage units.
回顾
2.2 Battery Construction and Principle 电池结构与原理
NiMH battery Li-ion battery
2.3 Battery Management and Cooling Systems 电池管理 与冷却系统
Function功用与原理
回顾 NiMH Batteries
2.4 Battery Charging Technology 电池充电技术
2.4.1 Categories of Battery charging technology 电池充电技术的分类
Battery charging technologies can be categorized, broadly, into onboard and off-board charging. Both charging technologies can be further divided into two groups, where one allows only unidirectional power flow, and the other one enables bidirectional power flow.
充电率，充电速度 二极管电桥 漏磁 离车充电 车载充电，随车充电 停车位 功率电子器件，控制器
2.4 Battery Charging Technology 电池充电技术
power flow receiving coil transmitting coil wireless charging
能流 接收线圈 发射线圈 无线充电
Chapter 2 Power Batteries of EVs 电动汽车动力电池
本章学习内容 本章学习目标 本章难点重点
2.1 Basic Terminology and Types of Power Batteries 动力电池的基本术语和类型（2学时） 2.2 Construction and Principle 结构与原理 2.3 Battery Management and Cooling Systems 电池管 理与冷却系统（2学时） 2.4 Battery Charging Technology 电池充电技术 2.5 Service and Testing 维护与测试（2学时）
NiMH battery cell - cylindrical type
NiMH battery cell - prismatic type
回顾
Li-ion battery cell
回顾
Describe the functions and basic principle of the battery management system?
Voltage, current, and temperature readings are used to determine the SoC levels of the batteries.
回顾
朗读并说出下列各个专业词汇或词组的含义
alkaline battery auxiliary battery chemical reaction equation IC engine industrial truck lithium cobalt oxide lithium iron phosphate lithium nickel cobalt manganate
Onboard chargers are physically located in the PEV. Onboard chargers are used primarily for low charging power levels, which are typically less than 10 kW. Therefore, they do not cause battery heating and, consequently, they protect batteries’ health.
2.4 Battery Charging Technology 电池充电技术
On the other hand, off-board chargers are designed for higher charging rates (i.e., 10 - 80 kW) and therefore require more elaborate power electronics architectures. In order to facilitate high levels of charging power, additional infrastructure, such as energy storage units or three-phase lines, might become necessary. The major setback of off-board chargers is that they degrade battery lifetime more quickly than the onboard ones.
Wireless charging is an emerging technology and enables PEVs to charge their batteries in a contactless manner. Wireless charging has recently gained some attention mainly because it can allow power transfer between the grid and a vehicle while the vehicle is on the move. During charging, highfrequency magnetic fields between transmitting and receiving coils is required. Typically, the transmitting coils are built into a parking space and the receiving coils are attached to the underbody of the PEVs.
metal hydride
碱性电池
辅助蓄电池
化学反应方程
内燃机
工业车辆
钴酸锂（LiCoO2） 磷酸铁锂(LiFePO4) 三元锂（镍钴锰酸锂） (LiNiCoMnO2) 金属氢化物
回顾
negative electrode nickel-cadmium (Ni-Cd) battery nickel-metal hydride (NiMH) battery oxidation-reduction reaction positive electrode steel cylinder
提问
balancing unit battery controller battery management system（BMS） cell controller HV battery pack remaining capacity sensing unit
Chapter 2 Power Batteries of EVs 电动汽车动力电池
本次课学习内容
2.4 Battery Charging Technology 电池充电技术 2.5 Service and Testing 维护与测试（2学时）
本次课学习目标
1.了解电池的充电技术 2.掌握电池维护安全预防措施
本章难点重点
1.重点：结构原理 2.难点：术语过多
2.4 Battery Charging Technology 电池充电技术
平衡装置 蓄电池控制器 电池管理系统（BMS） 单体电池控制器 高压电池组 剩余容量 传感装置
提问
说出下列各个专业词汇或词组的含义
alkaline battery auxiliary battery chemical reaction equation IC engine industrial truck lithium cobalt oxide lithium iron phosphate lithium nickel cobalt mging Technology 电池充电技术
Figure 2.12 generic layout of the chargers
2.4 Battery Charging Technology 电池充电技术
2.4.2 Wireless charging technology 无线充电技术
metal hydride
提问
negative electrode nickel-cadmium (Ni-Cd) battery nickel-metal hydride (NiMH) battery oxidation-reduction reaction positive electrode steel cylinder