ISO14229-1：2013道路车辆统一诊断服务（UDS）标准中文版

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ISO14229-1中文版是国际标准化组织（ISO）制定的一项关于道路车辆统一诊断服务（Unified Diagnostic Services, UDS）的重要标准，该标准于2013年3月15日发布第二版。这个标准的主要目标是确保不同厂商生产的车辆诊断系统能够相互兼容，以便于维修人员进行故障检测、维护和升级。ISO14229-1针对的是车辆诊断接口（Diagnostic Onboard Interface, DOI）和诊断消息通信规范，规定了诊断服务的架构、数据交换格式、功能要求以及安全措施。该标准定义了诊断服务协议的核心要素，包括： 1. **接口定义**：ISO14229-1详细描述了车辆与诊断工具之间的物理连接和通信端口，如OBD-II（On-Board Diagnostics II）接口，以及数据流的传输速率和电气特性。 2. **服务类别**：标准定义了多种诊断服务类型，如基本服务、扩展服务和安全相关服务，涵盖了车辆的各个方面，如发动机控制、刹车系统、电子稳定程序等。 3. **诊断过程**：规定了如何通过请求-响应模式执行诊断测试，包括测试计划、数据采集、错误代码解析和报告生成等步骤。 4. **安全性**：强调了数据保密性和完整性，要求在数据交换过程中实施必要的加密和认证机制，防止未经授权的访问或篡改。 5. **兼容性**：为了促进全球范围内的车辆维修和诊断，ISO14229-1确保了不同制造商车辆间的诊断服务能无缝对接，降低了技术壁垒。 6. **更新和维护**：标准还涉及到如何处理新功能的引入、现有服务的升级和未来的标准化过程，确保技术的持续演进。 7. **版权和许可**：标准文本受到严格的版权保护，任何复制或利用需得到ISO的明确许可，以尊重知识产权。 ISO14229-1中文版是现代汽车工业中不可或缺的技术规范，对于汽车制造商、维修服务商以及相关软件开发者来说，理解和遵循这一标准是提升车辆诊断效率、确保数据安全和推动行业进步的关键。

INTERNATIONAL STANDARD ISO 14229-1:2013(E)

Road vehicles — Unified diagnostic services (UDS) —

Part 1:

Specifications and requirements

1 Scope

This part of ISO 14229 specifies data link independent requirements of diagnostic services, which allow

a diagnostic tester (client) to control diagnostic functions in an on-vehicle Electronic Control Unit (ECU,

server) such as an electronic fuel injection, automatic gear box, anti-lock braking system, etc.

connected to a serial data link embedded in a road vehicle.

It specifies generic services, which allow the diagnostic tester (client) to stop or to resume non-

diagnostic message transmission on the data link.

This part of ISO 14229 does not apply to non-diagnostic message transmission on the vehicle's

communication data link between two Electronic Control Units. However, this part of ISO 14229 does

not restrict an in-vehicle on-board tester (client) implementation in an ECU in order to utilize the

diagnostic services on the vehicle's communication data link to perform bidirectional diagnostic data

exchange.

This part of ISO 14229 does not specify any implementation requirements.

2 Normative references

The following referenced documents are indispensable for the application of this document. For dated

references, only the edition cited applies. For undated references, the latest edition of the referenced

document (including any amendments) applies.

ISO 14229-2, Road vehicles — Unified diagnostic services (UDS) — Part 2: Session layer services

3 Terms, definitions, symbols and abbreviated terms

3.1 Terms and definitions

For the purposes of this document, the following terms and definitions apply.

3.1.1

boot manager

part of the boot software that executes immediately after an ECU power on or reset whose primary

purpose is to check whether a valid application is available to execute as compared to transferring

control to the reprogramming software

NOTE The boot manager may also take into account other conditions for transitioning control to the

reprogramming software.

3.1.2

boot memory partition

area of the server memory in which the boot software is located

ISO 14229-1:2013(E)

3.1.3

boot software

software which is executed in a special part of server memory which is used primarily to boot the ECU

and perform server programming

NOTE 1 This area of memory is not erased during a normal programming sequence and must execute

when the server application is missing or otherwise deemed invalid to always ensure the capability to

reprogram the server.

NOTE 2 See also 3.1.1 and 3.1.17.

3.1.4

client

function that is part of the tester and that makes use of the diagnostic services

NOTE A tester normally makes use of other functions such as data base management, specific

interpretation, human-machine interface.

3.1.5

diagnostic data

data that is located in the memory of an electronic control unit which may be inspected and/or possibly

modified by the tester

NOTE 1 Diagnostic data includes analogue inputs and outputs, digital inputs and outputs, intermediate

values and various status information.

NOTE 2 Examples of diagnostic data are vehicle speed, throttle angle, mirror position, system status,

etc. Three types of values are defined for diagnostic data:

 the current value: the value currently used by (or resulting from) the normal operation of the

electronic control unit;

 a stored value: an internal copy of the current value made at specific moments (e.g. when a

malfunction occurs or periodically); this copy is made under the control of the electronic control unit;

 a static value: e.g. VIN.

The server is not obliged to keep internal copies of its data for diagnostic purposes, in which case the

tester may only request the current value.

NOTE 3 Defining a repair shop or development testing session selects different server functionality

(e.g. access to all memory locations may only be allowed in the development testing session).

3.1.6

diagnostic routine

routine that is embedded in an electronic control unit and that may be started by a server upon a

request from the client

NOTE It could either run instead of a normal operating program, or could be enabled in this mode

and executed with the normal operating program. In the first case, normal operation for the server is not

possible. In the second case, multiple diagnostic routines may be enabled that run while all other parts

of the electronic control unit are functioning normally.

3.1.7

diagnostic service

information exchange initiated by a client in order to require diagnostic information from a server or/and

to modify its behaviour for diagnostic purpose

3.1.8

diagnostic session

state within the server in which a specific set of diagnostic services and functionality is enabled

ISO 14229-1:2013(E)

3.1.3

启动软件

服务器内存特定部分执行的软件，此软件主要用于启动 ECU 并执行服务器编程。

注 1 服务器应用程序丢失或视为无效时，正常编程序列期间，本部分内存不可删除，以确保内存始

终满足服务器重新编程要求。

注 2 见 3.1.1 和 3.1.17。

3.1.4

客户端

构成测试仪一个组成部分的一项功能，此功能利用诊断服务。

注测试仪通常还利用其它功能，如数据库管理、具体解释和人机界面。

3.1.5

诊断数据

电子控制单元内存内数据，此数据可通过测试仪检查和/或更改。

注 1 诊断数据包括模拟输入和输出、数字输入和输出、中间值和各种状态信息。

注 2 诊断数据包括车速、油门开度、视镜位置、系统状态等。诊断数据中定义了三类值。

-- 当前值：电子控制单元正常操作时采用的值（或产生的值）；

-- 存储值：特定时刻（如故障发生时或周期性）当前值的内部复制值；此复制值受电子控制单元

控制；

-- 静态值：如 VIN。

出于诊断目的，服务器无须保持其数据的内部复制值，在此情况下，测试仪仅可请求当前值。

注 3 定义维修车间或开发测试会话需选择不同服务器功能性（如仅允许在开发测试会话时访问所有

内存位置）。

3.1.6

诊断程序

嵌入电子控制单元内的程序，此程序可在客户端发出请求时由服务器启动。

注此程序可取代正常操作程序进行运行，或与正常操作程序一起启用并执行。第一种情况下，服务

器不可能实现正常运行。第二种情况下，可启用多个可在电子控制单元其他部分正常操作时运行的诊断

程序。

3.1.7

诊断服务

为从服务器获取诊断信息或/和更改诊断目的支配行为而由客户端启用的信息交换。

3.1.8

诊断会话

服务器内说明信息，此服务器内启用一组具体诊断服务和功能。

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