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ISO对汽车电子功能安全系列标准进行修订,旨在保障道路安全

发布时间: 2019-01-10 09:08:11   审校:睿智  

当今世界,公路车辆的技术正快速向前发展,关键是这些让人兴奋的新电子功能还安全可靠。日前,一系列关于公路车辆电气和电子系统功能安全的国际标准得到更新,旨在让汽车产业保持领先地位。

从一个世纪前的内燃机时代开始,汽车已走过了漫长历程,甚至手摇车窗也得到了长足发展。现在,似乎只需按一下按钮或通过简单的语音指令即可完成所有操作。电子技术背后是一系列让人惊叹的汽车功能,而这项技术还在不断发展。

但是,任何强大的技术都会带来一系列风险。ISO 26262系列标准旨在为当今公路汽车的电气和电子系统功能安全提供指导和提出要求,以降低风险。

ISO 26262公路车辆--功能安全标准包括12个部分,刚刚得到修订,以适应快速发展的新技术,并与更多应用程序建立联系。

制定该项标准的ISO分技术委员会主席彰山进(Susumu Akiyama)表示,公路车辆中的电气和电子系统功能安全对于汽车整体质量和产品安全,以及制造商的声誉都至关重要。

“因此, ISO 26262系列标准是汽车行业确保车辆安全的有用工具,其通用性可为汽车产业的创新发展提供一定的灵活性。”他说道。

新修订的版本中,增加了对半导体的关键要求和对摩托车的新要求。

功能安全是每一汽车产品开发阶段不可或缺的一部分,从规格、设计、安装、集成、检测、验证、最终生产完成,ISO 26262对所有汽车电子和电气安全系统的功能安全做出规定,包括开发、生产到运作、服务再到停用的整个生命周期。

该系列标准还详细介绍了一种汽车风险等级划分方法,即“汽车安全完整性等级”(ASIL)。ASIL根据三个变量——严重程度、暴露概率和驾驶员的可控性——对潜在危险进行风险分析。

ISO 26262的第1部分至第12部分都是由ISO/TC 22公路车辆技术委员会的SC32电气和电子组件与通用系统分技术委员会制定,其秘书处是由为ISO的日本成员日本工业标准委员会(JISC)承担。

Keeping safe on the roads: series of standards for vehicle electronics functional safety just updated

In today’s world where the technology of road vehicles is moving ahead at racing pace, it is important that these exciting new electronic features are safe. A series of International Standards for functional safety of electrical and electronic systems in road vehicles has just been updated to keep the automotive industry ahead of the pack.

Cars have come a long way from the days of internal combustion engines a century ago, or even manual wind-down windows. These days, it seems, everything is done by the touch of a button or through a simple voice command. Electronics are behind a mind-boggling array of vehicle functionalities and the technology just keeps on coming.

But with any powerful technology comes a set of risks. The purpose of the ISO 26262 series of standards is to mitigate those risks by providing guidelines and requirements for the functional safety of electrical and electronic systems in today’s road vehicles.

Published in 12 individual parts, ISO 26262, Road vehicles – Functional safety, has just been updated to keep abreast of these new and rapidly evolving technologies, and be relevant to even more applications.

Mr Susumu Akiyama, Chair of the ISO subcommittee that developed the standards, said functional safety for electrical and electronic systems in road vehicles is essential for overall quality and product safety, as well as for the manufacturer’s reputation.

“Therefore, the ISO 26262 series of standards is a useful tool for the automotive industry to ensure safety of the vehicle, and is generic enough to still allow some flexibility for innovation in its development,” he said.

Changes to the newly revised versions include the addition of important specific requirements for semi-conductors as well as new requirements for motorcycles.

Functional safety features form an integral part of each automotive product’s development phase, from specification and design to implementation, integration, verification, validation, and ultimately production release. ISO 26262 defines functional safety for all automotive electronic and electrical safety-related systems, covering their entire life cycle including the development, production, operation, service and decommissioning.

The series also details an automotive-specific, risk-based approach for determining risk classes, known as Automotive Safety Integrity Levels (ASILs). ASILs are established by performing a risk analysis of potential hazards based on three variables: severity, probability of exposure and controllability by the driver.

ISO 26262, Parts 1 to 12, were developed by ISO technical committee ISO/TC 22, Road vehicles, subcommittee SC 32, Electrical and electronic components and general system aspects, whose secretariat is held by JISC, ISO’s member for Japan.


来源: ISO 官网

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