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OBD

释义 Definition

OBD 是 On-Board Diagnostics 的缩写，意为“车载诊断系统”。它指车辆内置的一套自检与故障报码体系，用于监测发动机与排放等系统状态，并能通过接口读取故障码（DTC）与实时数据。（常见升级版本为 OBD-II。）

发音 Pronunciation

/o bi di/

例句 Examples

My car supports OBD-II.
我的车支持 OBD-II 车载诊断系统。

Using an OBD scanner, the mechanic pulled a fault code and traced the issue to the oxygen sensor.
技师用 OBD 扫描仪读取了故障码，并将问题追查到氧传感器。

词源 Etymology

OBD 来自短语 on-board（“车载的/机载的”）+ diagnostics（“诊断”），最初用于描述车辆在行驶过程中对关键系统进行自我监控与故障记录的能力；后来在法规与行业标准推动下，形成更通用的 OBD-II 体系与统一接口。

相关词 Related Words

文学与著名作品 Literary Works

Bosch Automotive Handbook（《博世汽车工程手册》）中常以 OBD/OBD-II 讨论车辆诊断与排放监测
SAE 标准文献 SAE J1979（规定 OBD-II 诊断服务与数据参数）
ISO 标准 ISO 15031（与 OBD 相关的诊断通信与数据定义）
CARB（加州空气资源委员会）发布的 OBD-II 相关法规与技术文件（常直接使用 “OBD” 术语）

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