广东快乐十分

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智能驾驶安全专题 | 功能安全与SOTIF如何融合实施

已有 604 次阅读2020-7-28 14:53 |个人分类:汽车电子|系统分类:芯片设计| 智能驾驶安全

 

智能驾驶真能替代“老司机”吗?

        YANJIUSHUJUBIAOMING,JIN94%DEZHIMINGCHEHUOYUJIASHIYUANZHIJIEXIANGGUAN,LIRUPILAO、CHAOSUHUOQITAWEIFAXINGWEI,ZHINENGJIASHIBEISHIWEIKEYIXIANZHUJIANGDISHIGULV。

 

 

        SUIZHEXITONGFUZAXINGDEBUDUANTISHENG,XINJISHUJIANGHUIYINRUXINDEANQUANFENGXIAN,UberZIDONGJIASHIQICHE2018NIAN3YUEZAIMEIGUOYIWAIZHUANGJIZHISIYIMINGXINGREN,2016-2020SINIANJIANTESILASANCIYINSHEXIANGTOUSHIBIEJUXIANXINGZHUANGXIANGBAISEKACHE,2020NIAN3YUEWOERWOXIANGQUANQIUSHICHANGFACHUDAGUIMOZHAOHUITONGGAO,SHULIANGDA70WANLIANG,SHEJI9KUANZAISHOUCHEXING,ZHAOHUIDEYUANYINSHICIQIANWOERWOZAIDANMAIJINXINGDEYIXIANGGUANYUXC60DEANQUANCESHIZHONG,FAXIANZIDONGJINJIZHIDONGXITONG(Autonomous Emergency Braking, AEB)MEIYOUANYUQIZAIFASHENGPENGZHUANGSHIJISHICHATINGCHELIANG。WULUNSHIGUANYUXIAOFEIZHEGOUMAIZIDONGJIASHICHELIANGDEJUEDINGYINSUDIAOCHA,HAISHIGEGUOFABUDEZIDONGJIASHICHELIANGBIAOZHUN,“ANQUAN”SHIZHONGSHIZUISHOUGUANZHUDEJIAODIAN。

 

 

广东快乐十分        ZHINENGJIASHIDAILAIDEANQUANWENTIYUELAIYUEDUO,BUGUANSHIJIAOTONGSHIGUHAISHIZHAOHUISHIJIAN,JIUQIYUANYINYEBUQUANSHIYOUYUE/EXITONGGUZHANGSHIXIAOERDAOZHIDE;ZAIZIDONGJIASHIXITONGZHONGJISHIXITONGBUFASHENGGUZHANG,YEKENENGYINWEIFUZAZHINENGSUANFADEBUQUEDINGXINGDAOZHIGONGNENGDEPIANLI、CHUANGANQIHUOXITONGXINGNENGXIANZHI、JIASHIYUANDUICHELIANGGONGNENGDEWUYONG,ZAOCHENGJIAOTONGSHANGHAI。ZHINENGJIASHISHIGUPINFA,GONGZHONGDEXINXINXIAJIANG,DUIYUZHINENGJIASHIDEWEILAIWOMENBUJINHUIYOUZHEIYANGDEYIWEN:WOHAIYOUJIHUIMA?

 

 

智能驾驶的“安全带”—SOTIF

广东快乐十分        WOMENZHIDAOISO26262 GONGNENGANQUANZHIZAIBIMIANYOUE/EXITONGGONGNENGSHIXIAODAOZHIDEBUKEJIESHOUDEFENGXIAN,ZHUYAOSHIZHENDUIXITONGXINGSHIXIAO/SUIJIYINGJIANSHIXIAODAOZHIDEFENGXIANDEJINXINGFENXIHEKONGZHI,RANERCHUANGANQIHEGANZHISUANFA(e.g. machine learning, neural networks),ZAIMEIYOUCHUXIANDIANZIDIANQIXITONGSHIXIAOSHI,YOUYUSHEJIDEJUXIANXINGYEHUIDAOZHIFENGXIAN,DANCIBUFENBINGBUSHUYUISO 26262DEFANCHOU。WEILEMIBUISO 26262DEJUXIAN,YUQIGONGNENGANQUAN(Safety of the intended functionality,SOTIF)YINGYUNERSHENG。

 

广东快乐十分        2019NIAN1YUE,ISO/PAS 21448:2019 Road vehicles — Safety of the intended functionalityFABU,TONGNIAN5YUEISO 21448GONGZUOZUCAOAN(WD)ZHONGYIJIANGGAIGUOJIBIAOZHUNDEFANWEITUOZHANZHIL1-L5ZIDONGJIASHICHELIANGXITONG。

 

        SOTIFDINGYIWEIBUCUNZAIBUKEJIESHOUDEYOUGONGNENGSHEJIBUZUHUOZHEKEYUJIANDEJIASHIYUANWUCAOZUOFENGXIAN,ZHUYAOWEILEXIAOCHUYIXIALIANGLEIFENGXIAN:

? Performance limitation LIRU:ELIEHUANJINGTIAOJIANXIA,CHUANGANQIWUFATANCEDAOWUTI

? Misuse LIRU:RENJIJIEMIANSHEJICHA,DAOZHIJIASHIYUANWUYONGZIDONGJIASHIGONGNENG

 

        ZHINENGWANGLIANCHELIANGDUIYUBUTONGDEWEIHAISHIJIANYUANYIN,HUIYOUXIANGYINGBIAOZHUNFUGAI。

 

 

广东快乐十分        SOTIFCONGYIZHIXINGHEANQUANXINGLIANGGEWEIDUJIANGCHANGJINGFENWEI4LEI:

 

 

广东快乐十分        SOTIFDEMUDEJIUSHIPINGGUArea 2HEArea 3,TONGGUOYIXILIEJISHUCUOSHIJIANGLIANGQUYUJIANXIAO,BINGTONGSHITIGONGZHENGJUZHENGMINGZHEILIANGGEYUYIJINGZUGOUXIAO,SHENGYUDECANYUWEIHAISHIKEJIESHOUDE。ZAICIGUOCHENGZHONGArea 1TONGCHANGSHIZENGJIADE。

 

 

ISO 26262与ISO 21448 核心环节对比

        JINGUANISO 26262HEISO 21448CHULIDESHIANQUANDEBUTONGFANGMIAN,DANZHEILIANGGEGUOCHENGDOUXUYAOYONGYUSHIXIANYUQIGONGNENGDEKEKAOANQUANXINGLUNZHENG。LIANGGEBIAOZHUNZHIJIANHUODONGDEYIZHIXINGYOUZHUYUZAIXITONGSHEJIDEZAOQIFAXIANWENTIBINGJINXINGXIUGAI,TONGSHIGEHUODONGZHIJIANSHIJIAOHUJINXINGDE,CHANPINKAIFAJIEDUANTONGCHANGXUYAODUOCIDIEDAI,YISHENGCHENGZUIZHONGDEGONGNENGHEXITONGGUIFAN。

 

 

广东快乐十分? Part5 XITONGGUIFANHESHEJIYU Item Definition BINGXING

? Part6 WEIHAISHIBIEHEFENGXIANPINGGUYU HARA BINGXING

? Part7 CHUFATIAOJIANSHIBIEHEPINGGUYU FSC/TSC BINGXING

广东快乐十分? YANZHENGHEQUERENYU ISO 26262DE VMOXINGYOUBANBIANBINGXING

? SOTIFDEFABUYUGONGNENGANQUANPINGGUBINGXING

 

功能安全与SOTIF融合实施

        ISO 21448ZHONGDINGYILESOTIFDEGONGZUOLIU,XIAMIANRONGHEISO 26262KAIFAGUOCHENG,ZHENDUIPart5-Part8XIANGXIMIAOSHUGEJIEDUANGONGZUONEIRONG。

 

 

? Part 5 功能规范与系统设计方案

    ?  广东快乐十分功能规范  Functional description 

        整车层面的描述,包括预期功能和子功能目的、需要达到的性能指标、预期功能的启动,退出条件(运行设计域operational design domAIn, ODD描述)、车辆自动化的Level等级等。

 

 

    ?  方案设计  system design and architecture

        FANGANSHEJIZHONGDAJIANXITONGJIAGOU,MINGQUEGEZIXITONGJIANDEYILAIJIAOHUGUANXI,DINGYIXITONGGONGNENGHEXIANGGUANGUZHANG。

 

 

? 广东快乐十分Part 6 识别与评估危害事件

        与ISO26262不同,SOTIF的危险不是由故障引起的,而是由于来自外部的触发条件会触发系统的局限性或弱点广东快乐十分(都不是故障)。SOTIF最初的HARA可以与ISO 26262中的相同,但是会不断演变最终会包含更多的故障,新的系统性危害以及更多情况(包括触发条件)。Part 6 识别与评估危害事件

 

 

? Part 7 触发条件的识别和评估

        TONGGUOCANKAOXIANGTONGDEXIANGMUHUOZHEXIANGTONGLINGYUDEJINGYAN,XITONGXINGDEFENXICHUFATIAOJIAN。SHIBIEXITONGDEQUEXIANHUOZHECHANGJINGZHUYAOFENXINEIRONG:

    ?  已知的系统组件约束

    ?  环境条件和可预见的误操作

        TONGGUOZHEIXIEFENXIKEYITIGAODUIXITONGJUXIANXINGDELIJIE,TONGSHIJIANGHUIGAISHANWEIZHICHUFATIAOJIANDESHIBIE。JIYUZHENGCHEJIBIEWEIHAIKETONGGUOGUZHANGSHUTONGSHIFENXIGONGNENGANQUANYUANYINHEYUQIGONGNENGANQUANYUANYIN,YUQIGONGNENGDEGUZHANGXINGWEIXIABAOHANCHUFATIAOJIANHEXIANGYINGDERUODIANHEXIANZHI。

 

 

        ZHENDUIBUTONGMOKUAI(LIRUCHUANGANQI)CHUANGJIANJUXIANXINGKUJINXINGXIANZHIHERUODIANFENXI,JIANGCHUANGANQI/GONGNENGTEZHENGYUQIANZAICHANGJINGDETEZHENG/TEXINGLIANXIQILAI,QUEDINGDECHUFATIAOJIANKEYIBAOCUNWEIQINGJINGKU,YIGONGZAIXINXIANGMUZHONGJINYIBUSHIYONG。LINGWAIFUJIAYIGESysMLMOXING,YONGYUMIAOSHUTAMENSUISHIJIANDEBIANHUA(HUODONGTU)

 

 

? Part 8 功能改进(Architecture)

        SHOUXIANCONGANQUANMUBIAODECHUGONGNENGYAOQIU,RANHOUCONGYISHIBIEDEGUZHANGDECHUJIAODIJIBIEDEGONGNENGYAOQIU。SUIHOUZAIDANDUDEANQUANGAINIAN(TSC /SOTIFGAINIAN)ZHONGXIHUAWEIJISHUYAOQIU(TSR)HEXINGNENGYAOQIU(SOTIF)。TIANJIAEWAISOTIFANQUANJIZHIDUIJIAGOUJINXINGGAIJIN,LIRU:TIGAOCHUANGANQIXINGNENG/JINGDU、CHUANGANQISUANFAGAIJIN、XUANYONGHESHIDECHUANGANQIJISHU、GAIBIANCHUANGANQIWEIZHI、CHUANGANQIGANRAOJIANCE,BINGCHUFABAOJINGHEJIANGJICELVE、YUNXINGSHEJIYU(ODD)TUICHUDEJIANCEDENG。

 

? Part9-Part10为SOTIF验证阶段,需要定义验证和确认策略,以提供实现目标的证据,并说明如何实现目标。随着功能的改进,对系统进行分析,以确定在验证和确认期间是否重新测试了其他功能。这些相关功能通过回归测试得到验证。这确保了已知的或新的触发事件不会在未更改的功能中导致潜在的危险行为。在验证和确认活动中发现的触发事件(其中存在潜在的危险行为)在每次发布时都要重新测试。对于Area 2可以通过很明确的方法进行验证,可参考ISO21448 Clause 10中给出了的系统和组件(传感器、算法和执行器)和集成的推荐验证方法。对于Area 3这类情景只能靠企业的实践或其他方法(如设计度量、系统分析或专用实验)进行评估。

 

智能驾驶功能安全综合方案

        JIEHEZISHENQICHEDIANZICHANPINYANFASHIJIAN,JINGWEIHENGRUNDEGONGNENGANQUANTUANDUIZAIZHIJIAYUTIGONGFUGAIANQUANLIUCHENG、CHANPINKAIFARENZHENGJIGONGJUPINGTAIDEZONGHEJIEJUEFANGAN。

 

 

    ?  智驾功能安全流程搭建

 

    ?  广东快乐十分智驾功能安全产品开发及认证

 

广东快乐十分        TONGGUOGONGNENGANQUANMOBAN、KAIFASHILIJIDINGZHIDEWorkshopJIKEHUTIGONGZHUANYEDEZIXUNFUWU。

 

 

    ?  智驾功能安全平台

广东快乐十分        JIEHEKEHUGONGCHENGXUQIU,JINGWEIHENGRUNHUIXIEZHUGOUJIANSHIPEIZHINENGJIASHIDEGAOKEKAO、GAOZIDONGHUAGONGNENGANQUANPINGTAI,YIJIYUMOXINGDEANQUANFENXIWEIZHONGYAOSHOUDUANQUDONGZHINENGJIASHICHANPINJIAGOUJISHEJIBUDUANCHIXUGAIJIN。

 

 

        MediniWEIJINGWEIHENGRUNZHANGQIHEZUODEZHUANYEGONGNENGANQUANPINGTAI,KEYIWANZHENGFUGAIISO-26262、ISO-21448(SOTIF)XINGYEHEXINGUOCHENG,ZHENDUIZIDONGJIASHISOTIFLINGYUDEJIEJUEFANGAN,KEYIWANQUANFUGAISOTIFANQUANFENXIGUOCHENG(Part5-Part8),TONGSHICANYUISO 21448BIAOZHUNZHIDING,SUISHIGENGXINBAOCHIYUBIAOZHUNTONGBU。

 

 

        YITUOMediniPINGTAIJIFENGFUDEAPIJIEKOUKEYIGOUJIANWANZHENGDEJIYUMOXINGKAIFADEGONGNENGANQUANPINGTAI,SUOYOUDEXITONGGONGNENGHEXITONGJIAGOUJIYUSysMLMOXINGMIAOSHU,JIYUZHEIXIEXITONGSHEJI,KEYIZHIJIEYIJIANSHENGCHENGFMEABIAOGE,YIJIKUAISUDEGOUJIANGUZHANGSHU,JINXINGFTA。

 

广东快乐十分        ZAIJICHENGHUADEPINGTAILI,KEYIGUANLIANQUANMUBIAO、ANQUANXUQIU,BINGBAANQUANXUQIUFENPEIJIDUIYINGDEXITONGHEZUJIAN。JINER,ANQUANXUQIU、XITONGSHEJI、ANQUANFENXISANZHEKEYITONGYIPINGTAIZHONGJINXINGLIANJIE、JIAOHUHEGUANLI。

 

 

        JINGWEIHENGRUNCONG2008NIANKAISHIYANJIUJISHISHIGONGNENGANQUAN,BINGYUTONGNIANZUJIANLEGONGNENGANQUANTUANDUI,CONGXIAOHUAISO-26262BIAOZHUNDAOCANYU2017NIANGB/T 34590GONGNENGANQUANBIAOZHUNDEZHIDING;JIEHEZISHENQICHEDIANZICHANPINYANFASHIJIAN,JINGWEIHENGRUNDEGONGNENGANQUANTUANDUIZAIZHIJIAYU、DIPANYU、DONGLIYU、CHESHENYUSHISHIGUONEIWAI100+CHENGGONGANLI,JILEILEFENGFUDEJINGYAN。YINGHESHICHANGSUOXU,JIEHELIANGCHANCHANPINGONGNENGANQUANLUODISHISHIDEJISHUNANDIAN,JINGWEIHENGRUNGONGNENGANQUANTUANDUIYIZHINENGJIASHIGONGNENGANQUANWEIZHUTI,LUXUFABUJIEJUEFANGANXILIEWENZHANG。

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