{"id":3291,"date":"2020-01-08T17:09:20","date_gmt":"2020-01-08T09:09:20","guid":{"rendered":"https:\/\/yanjingang.com\/blog\/?p=3291"},"modified":"2020-01-08T17:09:20","modified_gmt":"2020-01-08T09:09:20","slug":"%e6%b5%85%e8%b0%88%e6%b1%bd%e8%bd%a6%e5%ae%89%e5%85%a8-%e6%95%85%e9%9a%9c%e3%80%81%e9%94%99%e8%af%af%e3%80%81%e5%a4%b1%e6%95%88","status":"publish","type":"post","link":"https:\/\/yanjingang.com\/blog\/?p=3291","title":{"rendered":"\u6d45\u8c08\u6c7d\u8f66\u5b89\u5168\u2014\u6545\u969c\u3001\u9519\u8bef\u3001\u5931\u6548"},"content":{"rendered":"<p>\u6c7d\u8f66\u529f\u80fd\u5b89\u5168\u4e2d\u7684\u6709\u4e9b\u6982\u5ff5\u6bd4\u8f83\u7ed5\uff0c\u6bd4\u5982\u6545\u969c(fault)\uff0c\u9519\u8bef(error)\uff0c\u5931\u6548(failure)\uff0c\u4eca\u5929\u5c31\u8fd9\u4e09\u4e2a\u6982\u5ff5\u8fdb\u884c\u4e0b\u63a2\u8ba8\u3002<\/p>\n<h1>\u4e00\u3001\u6545\u969c<\/h1>\n<p>\u529f\u80fd\u5b89\u5168\u4e2d\u5b9a\u4e49\u7684\u6545\u969c\u662f\u6307\u53ef\u5f15\u8d77\u8981\u7d20\u6216\u76f8\u5173\u9879\u5931\u6548\u7684\u5f02\u5e38\u60c5\u51b5\u3002<\/p>\n<p>\u6545\u969c\u53ef\u4ee5\u5206\u4e3a\u6c38\u4e45\u6545\u969c\u548c\u975e\u6c38\u4e45\u6545\u969c\uff0c\u5176\u5206\u7c7b\u5982\u4e0b\u56fe\u6240\u793a\u3002<\/p>\n<p><a href=\"https:\/\/yanjingang.com\/blog\/wp-content\/uploads\/2020\/01\/car-safe-1.png\"><img loading=\"lazy\" class=\"alignnone wp-image-3297 size-large\" src=\"https:\/\/yanjingang.com\/blog\/wp-content\/uploads\/2020\/01\/car-safe-1-1024x565.png\" alt=\"\" width=\"625\" height=\"345\" srcset=\"https:\/\/yanjingang.com\/blog\/wp-content\/uploads\/2020\/01\/car-safe-1-1024x565.png 1024w, https:\/\/yanjingang.com\/blog\/wp-content\/uploads\/2020\/01\/car-safe-1-300x166.png 300w, https:\/\/yanjingang.com\/blog\/wp-content\/uploads\/2020\/01\/car-safe-1-768x424.png 768w, https:\/\/yanjingang.com\/blog\/wp-content\/uploads\/2020\/01\/car-safe-1-624x344.png 624w, https:\/\/yanjingang.com\/blog\/wp-content\/uploads\/2020\/01\/car-safe-1.png 1031w\" sizes=\"(max-width: 625px) 100vw, 625px\" \/><\/a><\/p>\n<p>\u6c38\u4e45\u6027\u6545\u969c\u662f\u6307\u53d1\u751f\u5e76\u6301\u7eed\uff0c\u76f4\u5230\u88ab\u79fb\u9664\u6216\u4fee\u590d\u7684\u6545\u969c\u3002\u4e5f\u5c31\u662f\u8bf4\u6c38\u4e45\u6027\u6545\u969c\u53d1\u751f\u4e86\u5fc5\u987b\u91c7\u53d6\u76f8\u5e94\u7684\u63aa\u65bd\u624d\u80fd\u591f\u4f7f\u5176\u6062\u590d\u5176\u6b63\u5e38\u8fd0\u884c\u3002\u5176\u4e2d\u7cfb\u7edf\u6027\u6545\u969c\u4e00\u822c\u8868\u73b0\u4e3a\u6c38\u4e45\u6027\u6545\u969c\u3002<\/p>\n<p>\u975e\u6c38\u4e45\u6027\u6545\u969c\u53ef\u4ee5\u5206\u4e3a\u95f4\u6b47\u6027\u6545\u969c\u548c\u77ac\u6001\u6545\u969c\u3002\u95f4\u6b47\u6027\u6545\u969c\u662f\u6307\u6545\u969c\u4e00\u518d\u7684\u53d1\u751f\uff0c\u7136\u540e\u6d88\u5931\u3002\u5f53\u4e00\u4e2a\u7ec4\u4ef6\u5904\u4e8e\u635f\u574f\u7684\u8fb9\u7f18\u65f6\uff0c\u6216\u8005\u4f8b\u5982\u7531\u4e8e\u5f00\u5173\u7684\u7535\u6d8c\uff08\u7535\u538b\u7684\u77ac\u6001\u6fc0\u70c8\u53d8\u5316\uff09\uff0c\u95f4\u6b47\u6027\u6545\u969c\u53ef\u80fd\u4f1a\u53d1\u751f\u3002\u67d0\u4e9b\u7cfb\u7edf\u6027\u6545\u969c\uff08\u4f8b\u5982\u65f6\u5e8f\u6df7\u4e71\uff09\u4e5f\u53ef\u80fd\u5bfc\u81f4\u95f4\u6b47\u6027\u6545\u969c\u3002<\/p>\n<p>\u77ac\u6001\u6545\u969c\u662f\u6307\u53d1\u751f\u4e00\u6b21\u4e14\u968f\u540e\u6d88\u5931\u7684\u6545\u969c\u3002\u77ac\u6001\u6545\u969c\u53ef\u7531\u7535\u78c1\u5e72\u6270\u5f15\u8d77\uff0c\u5176\u53ef\u5bfc\u81f4\u4f4d\u7ffb\u8f6c\u3002\u6bd4\u5982\u7531\u4e8e\u5355\u7c92\u5b50\u7ffb\u8f6c\u6548\u5e94(SEU)\u548c\u5355\u7c92\u5b50\u77ac\u6001\u8109\u51b2(SET)\u53d1\u751f\u7684\u8f6f\u9519\u8bef\uff0c\u5747\u4e3a\u77ac\u6001\u6545\u969c\u3002\uff08\u5355\u7c92\u5b50\u7ffb\u8f6c\u662f\u5b87\u5b99\u4e2d\u5355\u4e2a\u9ad8\u80fd\u7c92\u5b50\u5c04\u5165\u534a\u5bfc\u4f53\u5668\u4ef6\u7075\u654f\u533a\uff0c\u4f7f\u5668\u4ef6\u903b\u8f91\u72b6\u6001\u7ffb\u8f6c\u7684\u73b0\u8c61\u3002\uff09<\/p>\n<h2>\u4e8c\u3001\u9519\u8bef<\/h2>\n<p>ISO 26262\u4e2d\u5b9a\u4e49\u7684\u9519\u8bef\u662f\u6307\u8ba1\u7b97\u7684\u3001\u89c2\u6d4b\u7684\u3001\u6d4b\u91cf\u7684\u503c\u6216\u6761\u4ef6\u4e0e\u771f\u5b9e\u7684\u3001\u89c4\u5b9a\u7684\u3001\u7406\u8bba\u4e0a\u6b63\u786e\u7684\u503c\u6216\u6761\u4ef6\u4e4b\u95f4\u7684\u5dee\u5f02\u3002\u9519\u8bef\u53ef\u7531\u672a\u9884\u89c1\u7684\u5de5\u4f5c\u6761\u4ef6\u5f15\u8d77\u6216\u7531\u6240\u8003\u8651\u7684\u7cfb\u7edf\u3001\u5b50\u7cfb\u7edf\u6216\u7ec4\u4ef6\u7684\u5185\u90e8\u6545\u969c\u5f15\u8d77\u3002\u6545\u969c\u53ef\u8868\u73b0\u4e3a\u6240\u8003\u8651\u8981\u7d20\u5185\u7684\u9519\u8bef\uff0c\u8be5\u9519\u8bef\u53ef\u6700\u7ec8\u5bfc\u81f4\u5931\u6548\u3002<\/p>\n<p>\u6bd4\u5982\u7531\u4e8e\u5b87\u5b99\u4e2d\u5355\u4e2a\u9ad8\u80fd\u7c92\u5b50\u5c04\u5165\u534a\u5bfc\u4f53\u5668\u4ef6\u7075\u654f\u533a\uff0c\u4f7f\u5b58\u50a8\u5668\u903b\u8f91\u72b6\u6001\u7ffb\u8f6c\u7684\u5355\u7c92\u5b50\u7ffb\u8f6c\u6548\u5e94SEU\uff0c\u4f7f\u5f97\u8f6f\u4ef6\u4e2d\u67d0\u4e2abit\u4f4d\u4ece0\u52301\u6216\u8005\u4ece1\u53d8\u62100\u662f\u5c5e\u4e8e\u4e00\u4e2a\u8f6f\u9519\u8bef\uff08\u786c\u4ef6\u6ca1\u6709\u635f\u5bb3\uff09\u3002<\/p>\n<p>\u4ece\u4e0a\u53ef\u4ee5\u770b\u51fa\u6545\u969c\uff0c\u9519\u8bef\u548c\u5931\u6548\u7684\u5927\u6982\u5173\u7cfb\u662f\u6545\u969c\u53ef\u5f15\u8d77\u9519\u8bef\uff0c\u9519\u8bef\u518d\u5bfc\u81f4\u5931\u6548\u3002\u4e0b\u6587\u4f1a\u518d\u505a\u8be6\u7ec6\u8bf4\u660e\u3002<\/p>\n<h1>\u4e09\u3001\u5931\u6548<\/h1>\n<p>\u5931\u6548\uff0c\u6309\u7167ISO26262\u7684\u5b9a\u4e49\u662f\u8981\u7d20\u6309\u8981\u6c42\u6267\u884c\u529f\u80fd\u7684\u80fd\u529b\u7684\u7ec8\u6b62\u3002\uff08\u82f1\u6587\uff1aterminationof the ability of an element to perform a function as required\uff09<\/p>\n<p>\u6ce8\uff1a\u4e0d\u6b63\u786e\u7684\u89c4\u8303\u662f\u5931\u6548\u7684\u6765\u6e90\u4e4b\u4e00\u3002<\/p>\n<p>\u5728\u8fd9\u91cc\u5931\u6548\u9488\u5bf9\u7684\u662f\u529f\u80fd\u7684\u4e27\u5931\u6216\u8005\u7ec8\u6b62\u3002\u6bd4\u5982\u5bf9\u4e8e\u7535\u673a\u63a7\u5236\u5668\u6765\u8bf4\uff0c\u5176\u4e3b\u8981\u7684\u529f\u80fd\u4e4b\u4e00\u662f\u6839\u636e\u6574\u8f66\u63a7\u5236\u5668VCU\u7684\u626d\u77e9\u8bf7\u6c42\uff0c\u5bf9\u7535\u673a\u8fdb\u884c\u8f6c\u77e9\u548c\u8f6c\u901f\u7684\u63a7\u5236\uff0c\u56e0\u6b64\u65e0\u8bba\u8f93\u51fa\u7684\u626d\u77e9\u975e\u9884\u671f\u7684\u504f\u5927\u6216\u8005\u504f\u5c0f\u90fd\u662f\u4e00\u79cd\u5931\u6548\u3002<\/p>\n<h2>1.\u7cfb\u7edf\u6027\u5931\u6548\u548c\u968f\u673a\u786c\u4ef6\u5931\u6548<\/h2>\n<p>\u5728\u529f\u80fd\u5b89\u5168\u4e2d\u4f9d\u636e\u5931\u6548\u7684\u539f\u56e0\u53ef\u4ee5\u5206\u4e3a\u4e24\u79cd\uff1a\u7cfb\u7edf\u6027\u5931\u6548\u548c\u968f\u673a\u786c\u4ef6\u5931\u6548\u3002ISO 26262\u7684\u4e3b\u8981\u76ee\u7684\u5c31\u662f\u5c3d\u53ef\u80fd\u7684\u6d88\u9664\u8fd9\u4e24\u7c7b\u5931\u6548\u3002<\/p>\n<p>\uff081\uff09\u7cfb\u7edf\u6027\u5931\u6548\uff08systematic failure\uff09<\/p>\n<p>\u4ee5\u786e\u5b9a\u7684\u65b9\u5f0f\u4e0e\u67d0\u4e2a\u539f\u56e0\u76f8\u5173\u7684\u5931\u6548\uff0c\u53ea\u6709\u5bf9\u8bbe\u8ba1\u6216\u751f\u4ea7\u6d41\u7a0b\u3001\u64cd\u4f5c\u89c4\u7a0b\u3001\u6587\u6863\u6216\u5176\u5b83\u76f8\u5173\u56e0\u7d20\u8fdb\u884c\u53d8\u66f4\u540e\u624d\u53ef\u80fd\u6392\u9664\u8fd9\u79cd\u5931\u6548\u3002<\/p>\n<p>\u7cfb\u7edf\u6027\u5931\u6548\u5b58\u5728\u4e09\u4e2a\u7279\u5f81\uff1a<\/p>\n<p>A-\u00a0\u4ec5\u4ec5\u8fdb\u884c\u6b63\u786e\u7ef4\u62a4\u800c\u4e0d\u52a0\u4fee\u6539\u7684\u60c5\u51b5\u4e0b\uff0c\u65e0\u6cd5\u6d88\u9664\u6545\u969c\u3002<\/p>\n<p>B-\u901a\u8fc7\u6a21\u62df\u5931\u6548\u539f\u56e0\u53ef\u4ee5\u4f7f\u5176\u91cd\u590d\u51fa\u73b0\u3002<\/p>\n<p>C-\u662f\u4eba\u4e3a\u9519\u8bef\u5f15\u8d77\uff0c\u5931\u6548\u539f\u56e0\u6bd4\u5982\uff1a\u5b89\u5168\u8981\u6c42\u89c4\u8303\u7684\u9519\u8bef\uff1b\u786c\u4ef6\u7684\u8bbe\u8ba1\uff0c\u5236\u9020\uff0c\u5b89\u88c5\uff0c\u64cd\u4f5c\u7684\u9519\u8bef\uff1b\u8f6f\u4ef6\u7684\u8bbe\u8ba1\u548c\u5b9e\u73b0\u7684\u9519\u8bef\u7b49\u3002<\/p>\n<p>\u8f6f\u4ef6\u6545\u969c\u548c\u90e8\u5206\u7684\u786c\u4ef6\u6545\u969c\u662f\u5c5e\u4e8e\u7cfb\u7edf\u6027\u6545\u969c\u3002\u6bd4\u5982coding\u7684\u65f6\u5019\u6ca1\u6709\u8003\u8651\u4f7f\u7528\u6570\u636e\u7c7b\u578b\u7684\u9519\u8bef\uff0c\u67d0\u53d8\u91cf\uff08\u6bd4\u5982\u7cbe\u5ea6\u4e3a1\uff0coffset\u4e3a0\uff09\u672c\u5e94\u8be5\u4f7f\u7528U16\u7684\uff0c\u7ed3\u679c\u7528\u6210\u4e86U8\uff0c\u4f7f\u5f97\u8ba1\u7b97\u7684\u6700\u5927\u6570\u503c\u53ea\u80fd\u5230255\u3002\u8fd9\u91cc\u7684\u8f6f\u4ef6bug\u662f\u5c5e\u4e8e\u7cfb\u7edf\u6027\u5931\u6548\u3002<\/p>\n<p>\uff082\uff09\u968f\u673a\u786c\u4ef6\u5931\u6548\uff08random hardware failure\uff09<\/p>\n<p>\u6309\u7167ISO 26262\u7684\u5b9a\u4e49\uff0c\u968f\u673a\u786c\u4ef6\u5931\u6548\u662f\u5728\u786c\u4ef6\u8981\u7d20\u7684\u751f\u547d\u5468\u671f\u4e2d\uff0c\u975e\u9884\u671f\u53d1\u751f\u5e76\u670d\u4ece\u6982\u7387\u5206\u5e03\u7684\u5931\u6548\u3002\u5e76\u4e14\u53ef\u5728\u5408\u7406\u7684\u7cbe\u5ea6\u8303\u56f4\u5185\u8fdb\u884c\u9884\u6d4b\u3002<\/p>\n<p>\u975e\u9884\u671f\u53d1\u751f\u7684\u542b\u4e49\u662f\u5c3d\u7ba1\u786c\u4ef6\u7684\u8bbe\u8ba1\u662f\u6b63\u786e\u7684\uff0c\u6bd4\u5982\u7535\u5b50\u5143\u5668\u4ef6\u7684\u9009\u578b\uff0c\u7535\u963b\u503c\uff0c\u7535\u5bb9\u503c\uff0c\u7535\u8def\u8bbe\u8ba1\u7b49\u90fd\u662f\u6b63\u786e\u7684\uff0c\u4e14\u5668\u4ef6\u662f\u7b26\u5408\u8d28\u91cf\u6807\u51c6\u7684\u3002\u4f46\u662f\u5374\u65e0\u6cd5\u9884\u77e5\u5728\u54ea\u91cc\u53d1\u751f\uff0c\u4ee5\u600e\u6837\u7684\u5f62\u5f0f\u53d1\u751f\u7684\u5931\u6548\u3002<\/p>\n<p>\u670d\u4ece\u6982\u7387\u5206\u5e03\u7684\u542b\u4e49\u662f\u5931\u6548\u53ef\u4ee5\u5728\u5408\u7406\u7684\u7cbe\u5ea6\u8303\u56f4\u5185\u8fdb\u884c\u9884\u6d4b\u3002\u6bd4\u5982\u901a\u8fc7\u53ef\u9760\u6027\u6216\u8005\u5206\u6790\u5f97\u5230\u5931\u6548\u7387\u3002<\/p>\n<p>\u968f\u673a\u786c\u4ef6\u5931\u6548\u7684\u8d77\u56e0\u662f\u7531\u4e8e\u7269\u7406\u8fc7\u7a0b\uff0c\u6bd4\u5982\u75b2\u52b3\u3001\u7269\u7406\u9000\u5316\u6216\u73af\u5883\u5e94\u529b\u7b49\u3002\u6bd4\u5982\u4e0a\u9762\u63d0\u5230\u7684\u4f4d\u7ffb\u8f6c\uff0c\u6bd4\u5982\u7535\u963b\u7684\u5f00\u8def\uff0c\u77ed\u8def\uff0c\u963b\u503c\u6f02\u79fb\u7b49\u7b49\u3002<\/p>\n<h2>2.\u76f8\u5173\u5931\u6548\u548c\u975e\u76f8\u5173\u5931\u6548<\/h2>\n<p>\u6b64\u5916\u529f\u80fd\u5b89\u5168\u4e2d\u8fd8\u5b9a\u4e49\u4e86\u76f8\u5173\u5931\u6548\u548c\u975e\u76f8\u5173\u5931\u6548\u3002<\/p>\n<p>\u76f8\u5173\u5931\u6548\u662f\u6307\u5931\u6548\u540c\u65f6\u6216\u76f8\u7ee7\u53d1\u751f\u7684\u6982\u7387\u4e0d\u80fd\u8868\u793a\u4e3a\u6bcf\u4e2a\u5931\u6548\u65e0\u6761\u4ef6\u53d1\u751f\u6982\u7387\u7684\u7b80\u5355\u4e58\u79ef\u3002\u6bd4\u5982\u5f53\u5931\u6548A\u548c\u5931\u6548B\u540c\u65f6\u53d1\u751f\u7684\u6982\u7387\u4e0d\u7b49\u4e8e\u4e24\u4e2a\u5931\u6548\u6982\u7387\u7684\u4e58\u673a\uff0c\u7528\u6570\u5b66\u5173\u7cfb\u5f0f\u8868\u793a\u4e3aPab =Pa*Pb\uff0c\u5931\u6548A\u548cB\u53ef\u88ab\u5b9a\u4e49\u4e3a\u76f8\u5173\u5931\u6548\u3002\u53cd\u4e4b\u975e\u76f8\u5173\u5931\u6548\u53ef\u4ee5\u8868\u793a\u4e3a\u6bcf\u4e2a\u5931\u6548\u65e0\u6761\u4ef6\u53d1\u751f\u6982\u7387\u7684\u7b80\u5355\u4e58\u79ef\u3002<\/p>\n<p>\u76f8\u5173\u5931\u6548\u53ef\u4ee5\u5206\u4e3a\u5171\u56e0\u5931\u6548\u548c\u7ea7\u8054\u5931\u6548\u3002<\/p>\n<p>\u5171\u56e0\u5931\u6548\u662f\u6307\u5728\u76f8\u5173\u9879\u4e2d\uff0c\u6709\u4e00\u4e2a\u5355\u4e00\u7279\u5b9a\u4e8b\u4ef6\u6216\u6839\u6e90\u5f15\u8d77\u7684\u4e24\u4e2a\u6216\u591a\u4e2a\u8981\u7d20\u7684\u5931\u6548\u3002\u5982\u4e0b\u56fe\u6240\u793a\u3002<\/p>\n<p><a href=\"https:\/\/yanjingang.com\/blog\/wp-content\/uploads\/2020\/01\/car-safe-2.png\"><img loading=\"lazy\" class=\"alignnone wp-image-3296 size-full\" src=\"https:\/\/yanjingang.com\/blog\/wp-content\/uploads\/2020\/01\/car-safe-2.png\" alt=\"\" width=\"908\" height=\"454\" srcset=\"https:\/\/yanjingang.com\/blog\/wp-content\/uploads\/2020\/01\/car-safe-2.png 908w, https:\/\/yanjingang.com\/blog\/wp-content\/uploads\/2020\/01\/car-safe-2-300x150.png 300w, https:\/\/yanjingang.com\/blog\/wp-content\/uploads\/2020\/01\/car-safe-2-768x384.png 768w, https:\/\/yanjingang.com\/blog\/wp-content\/uploads\/2020\/01\/car-safe-2-624x312.png 624w\" sizes=\"(max-width: 908px) 100vw, 908px\" \/><\/a><\/p>\n<p>\u901a\u8fc7\u591a\u6837\u5316\u7684\u7a0b\u5e8f\u548c\u786c\u4ef6\u8bbe\u8ba1\u53ef\u4ee5\u907f\u514d\u5171\u56e0\u5931\u6548\u3002<\/p>\n<p>\u7ea7\u8054\u5931\u6548\u662f\u6307\u540c\u4e00\u4e2a\u76f8\u5173\u9879\u4e2d\uff0c\u4e00\u4e2a\u8981\u7d20\u7684\u5931\u6548\u5f15\u8d77\u53e6\u4e00\u4e2a\u6216\u8005\u591a\u4e2a\u8981\u7d20\u7684\u5931\u6548\u3002<\/p>\n<p>\u6bd4\u5982\u8f6f\u4ef6\u7684\u5206\u533a\u53ef\u4ee5\u907f\u514d\u7ea7\u8054\u5931\u6548\u3002\u5b9e\u9645\u5e94\u7528\u8fc7\u7a0b\u4e2d\u5c06level1\u548clevel2\u4e2d\u7684\u53d8\u91cf\u5b58\u50a8\u5728\u4e0d\u540c\u7684RAM\u533a\u6216NVRAM\u533a\u5c31\u662f\u4e00\u79cd\u5206\u533a\u7684\u65b9\u5f0f\u3002<\/p>\n<p><a href=\"https:\/\/yanjingang.com\/blog\/wp-content\/uploads\/2020\/01\/car-safe-3.png\"><img loading=\"lazy\" class=\"alignnone wp-image-3295 size-full\" src=\"https:\/\/yanjingang.com\/blog\/wp-content\/uploads\/2020\/01\/car-safe-3.png\" alt=\"\" width=\"967\" height=\"298\" srcset=\"https:\/\/yanjingang.com\/blog\/wp-content\/uploads\/2020\/01\/car-safe-3.png 967w, https:\/\/yanjingang.com\/blog\/wp-content\/uploads\/2020\/01\/car-safe-3-300x92.png 300w, https:\/\/yanjingang.com\/blog\/wp-content\/uploads\/2020\/01\/car-safe-3-768x237.png 768w, https:\/\/yanjingang.com\/blog\/wp-content\/uploads\/2020\/01\/car-safe-3-624x192.png 624w\" sizes=\"(max-width: 967px) 100vw, 967px\" \/><\/a><\/p>\n<h1>\u56db\u3001\u786c\u4ef6\u7684\u6545\u969c\u7c7b\u578b<\/h1>\n<p>\u786c\u4ef6\u6545\u969c\u6309\u7167\u6545\u969c\u7c7b\u578b\u53ef\u4ee5\u5206\u4e3a\u5982\u4e0b\u51e0\u79cd\uff0c\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<p><a href=\"https:\/\/yanjingang.com\/blog\/wp-content\/uploads\/2020\/01\/car-safe-4.png\"><img loading=\"lazy\" class=\"alignnone wp-image-3294 size-full\" src=\"https:\/\/yanjingang.com\/blog\/wp-content\/uploads\/2020\/01\/car-safe-4.png\" alt=\"\" width=\"926\" height=\"675\" srcset=\"https:\/\/yanjingang.com\/blog\/wp-content\/uploads\/2020\/01\/car-safe-4.png 926w, https:\/\/yanjingang.com\/blog\/wp-content\/uploads\/2020\/01\/car-safe-4-300x219.png 300w, https:\/\/yanjingang.com\/blog\/wp-content\/uploads\/2020\/01\/car-safe-4-768x560.png 768w, https:\/\/yanjingang.com\/blog\/wp-content\/uploads\/2020\/01\/car-safe-4-624x455.png 624w\" sizes=\"(max-width: 926px) 100vw, 926px\" \/><\/a><\/p>\n<p>\uff081\uff09\u5b89\u5168\u6545\u969c\uff1a<\/p>\n<p>\u5b89\u5168\u6545\u969c\u662f\u6307\u67d0\u4e2a\u6545\u969c\u7684\u53d1\u751f\u4e0d\u4f1a\u663e\u8457\u7684\u589e\u52a0\u8fdd\u53cd\u5b89\u5168\u76ee\u6807\u7684\u6982\u7387\uff08ISO 26262\uff09\u3002\u5b89\u5168\u6545\u969c\u53ef\u4ee5\u5206\u4e3a\u4e24\u7c7b\uff1a<\/p>\n<p style=\"padding-left: 40px;\">a) \u4e0e\u5b89\u5168\u76ee\u6807\u8fdd\u80cc\u65e0\u5173\u7684\u6545\u969c\u3002<\/p>\n<p style=\"padding-left: 40px;\">b) n &gt; 2\u7684\u5168\u90e8n\u70b9\u6545\u969c\uff08\u9664\u975e\u5b89\u5168\u6982\u5ff5\u663e\u793a\u5b83\u4eec\u4e0e\u5b89\u5168\u76ee\u6807\u7684\u8fdd\u80cc\u6709\u5173\u8054\uff09\u3002<\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u793a\u4f8b1\uff1a\u5bf9\u4e8e\u88abEDC\u548c\u5faa\u73af\u5197\u4f59\u6821\u9a8c(CRC)\u4fdd\u62a4\u7684\u95ea\u5b58\uff1a\u88abEDC\u7ea0\u6b63\u7684\u5355\u4f4d\u6545\u969c\u4e0d\u901a\u8fc7\u4fe1\u53f7\u6307\u793a\u51fa\u6765\u3002\u8be5\u6545\u969c\u5bf9\u5b89\u5168\u76ee\u6807\u7684\u8fdd\u80cc\u5f97\u5230\u4e86EDC\u7684\u9884\u9632\uff0c\u4f46\u672a\u901a\u8fc7\u4fe1\u53f7\u6307\u793a\u51fa\u6765\u3002\u5982\u679cEDC\u903b\u8f91\u5931\u6548\uff0c\u8be5\u6545\u969c\u88abCRC\u63a2\u6d4b\u5230\uff0c\u7cfb\u7edf\u88ab\u5173\u95ed\u3002\u53ea\u6709\u5f53\u95ea\u5b58\u4e2d\u5b58\u5728\u5355\u4f4d\u6545\u969c\u3001EDC\u903b\u8f91\u5931\u6548\u3001\u4e14CRC\u6821\u9a8c\u548c\u76d1\u63a7\u5931\u6548\u65f6\uff0c\u624d\u80fd\u53d1\u751f\u5bf9\u5b89\u5168\u76ee\u6807\u7684\u8fdd\u80cc\uff08n=3\uff09\u3002\u6b64\u65f6\u5176\u4e2d\u4efb\u610f\u4e00\u79cd\u5931\u6548<\/p>\n<p>\uff082\uff09\u5355\u70b9\u6545\u969c\uff1a<\/p>\n<p>\u5355\u70b9\u6545\u969c\u662f\u6307\u6ca1\u6709\u88ab\u5b89\u5168\u673a\u5236\u8986\u76d6\uff0c\u5e76\u4e14\u76f4\u63a5\u5bfc\u81f4\u8fdd\u80cc\u5b89\u5168\u76ee\u6807\u7684\u6545\uff08ISO26262\uff09\u3002<\/p>\n<p>\u6bd4\u5982\u7535\u52a8\u8f66REESS\uff08\u53ef\u5145\u7535\u7535\u6e90\u50a8\u80fd\u7cfb\u7edf\uff09\u7684\u7edd\u7f18\u7535\u963b\u5355\u70b9\u5931\u6548\u3002\u7edd\u7f18\u7535\u963b\u662f\u6307B\u7ea7\u7535\u538b\uff08\u4e00\u822c\u6307\u5927\u4e8e60V\u7684\u9ad8\u538b\uff09\u5e26\u7535\u90e8\u4ef6\u7aef\u5b50\u4e0e\u7535\u5e95\u76d8\u4e4b\u95f4\u7684\u7535\u963b\u3002\u5f53\u7535\u52a8\u6c7d\u8f66\u7edd\u7f18\u6750\u6599\u7684\u8001\u5316\u7834\u635f\uff0c\u96e8\u5929\u6d17\u8f66\u7535\u6c60\u7cfb\u7edf\u8fdb\u6c34\uff0c\u8f66\u8f86\u78b0\u649e\u7b49\u7b49\uff0c\u90fd\u4f1a\u5bfc\u81f4\u7edd\u7f18\u7535\u963b\u964d\u4f4e\u4f7f\u4eba\u89e6\u7535\u3002\u6b63\u5e38Ri\uff1e100\u03a9\/\uff36\u3002\u7f18\u7535\u963b\u7684\u964d\u4f4e\u53ef\u76f4\u63a5\u5bfc\u81f4\u4eba\u89e6\u7535\u7684\u98ce\u9669\uff0c\u56e0\u6b64\u8fd9\u4e2a\u662f\u5c5e\u4e8e\u5355\u70b9\u5931\u6548\u7684\u3002<\/p>\n<p>\uff083\uff09\u6b8b\u4f59\u6545\u969c\uff1a<\/p>\n<p>\u6b8b\u4f59\u6545\u969c\u662f\u6307\u53d1\u751f\u5728\u786c\u4ef6\u8981\u7d20\u4e2d\uff0c\u6ca1\u6709\u88ab\u5b89\u5168\u673a\u5236\u8986\u76d6\u6389\u7684\u90a3\u90e8\u5206\u6545\u969c\uff08ISO26262\uff09\u6b8b\u4f59\u6545\u969c\u7684\u53d1\u751f\u4f1a\u76f4\u63a5\u5bfc\u81f4\u5b89\u5168\u76ee\u6807\u7684\u8fdd\u53cd\u3002\u6bd4\u5982\uff1a\u5982\u679c\u4e00\u4e2a\u5931\u6548\u6a21\u5f0f\u58f0\u660e\u4e3a\u4f4e\u8986\u76d6\u7387\u4e3a60%\uff0c\u90a3\u4e48\u5176\u4f59\u768440%\u5c31\u662f\u6b8b\u4f59\u6545\u969c\u3002<\/p>\n<p>ISO 26262\u7b2c\u5341\u90e8\u5206\u4e2d\u63d0\u5230\u4e86\u4e00\u4e2a\u4f8b\u5b50\uff1a\u5982\u679c\u4ec5\u7528\u68cb\u76d8RAM\u6d4b\u8bd5\u7684\u5b89\u5168\u673a\u5236\u6765\u68c0\u67e5\u968f\u673a\u5b58\u50a8\u5668(RAM)\u6a21\u5757\uff0c\u90a3\u4e48\u4e0d\u80fd\u63a2\u6d4b\u51fa\u67d0\u4e9b\u79cd\u7c7b\u7684\u6865\u63a5\u6545\u969c\u3002\u56e0\u8fd9\u4e9b\u6545\u969c\u5bfc\u81f4\u7684\u5bf9\u5b89\u5168\u76ee\u6807\u7684\u8fdd\u80cc\u4e0d\u80fd\u88ab\u5b89\u5168\u673a\u5236\u6240\u9884\u9632\u3002\u8fd9\u4e9b\u6545\u969c\u5373\u4e3a\u6b8b\u4f59\u6545\u969c\u3002<\/p>\n<p>\uff084\uff09\u591a\u70b9\u6545\u969c\uff1a<\/p>\n<p>\u591a\u70b9\u6545\u969c\u662f\u6307\u4e0e\u5176\u4ed6\u72ec\u7acb\u6545\u969c\u7ec4\u5408\u800c\u5bfc\u81f4\u4e00\u4e2a\u591a\u70b9\u5931\u6548\u7684\u5355\u72ec\u6545\u969c\uff08ISO26262\uff09\u3002<\/p>\n<p>\u6ce8\uff1a\u4e00\u4e2a\u591a\u70b9\u6545\u969c\u4ec5\u5728\u8bc6\u522b\u51fa\u591a\u70b9\u5931\u6548\u540e\u624d\u80fd\u88ab\u8fa8\u8ba4\u51fa\u6765\uff0c\u6bd4\u5982\u901a\u8fc7\u6545\u969c\u6811FTA\u7684\u5206\u6790\uff08ISO 26262\uff09\u3002\u5176\u4e2d\u53cc\u70b9\u6545\u969c\u5c31\u662f\u4e24\u4e2a\u72ec\u7acb\u7684\u6545\u969c\u540c\u65f6\u53d1\u751f\u624d\u4f1a\u5bfc\u81f4\u5931\u6548\u7684\u6545\u969c\u30029<\/p>\n<p>\uff085\uff09\u6f5c\u4f0f\u6545\u969c\uff1a<\/p>\n<p>\u6f5c\u4f0f\u6545\u969c\u662f\u6307\u5b89\u5168\u673a\u5236\u6ca1\u6709\u63a2\u6d4b\u5230\uff0c\u4e14\u5728\u591a\u70b9\u6545\u969c\u63a2\u6d4b\u65f6\u95f4\u533a\u95f4\u95f4\u9694\u5185\u4e0d\u80fd\u88ab\u9a7e\u9a76\u5458\u5bdf\u89c9\u5230\u7684\u591a\u70b9\u6545\u969c\uff08ISO26262\uff09<\/p>\n<p>\u53ef\u4ee5\u7406\u89e3\u4e3a\uff1a\u5728\u4e00\u5b9a\u7684\u65f6\u95f4\u5185\u65e0\u6cd5\u68c0\u6d4b\u4e14\u65e0\u6cd5\u88ab\u9a7e\u9a76\u5458\u5bdf\u89c9\u7684\u591a\u70b9\u6545\u969c\u79f0\u4e3a\u6f5c\u4f0f\u6545\u969c\uff0c\u6bd4\u5982\uff1a<\/p>\n<p>A-\u76d1\u63a7\u82af\u7247\u7684\u5931\u6548<\/p>\n<p>B-\u5b89\u5168\u673a\u5236\u672c\u8eab\u7684\u5931\u6548\uff0c\u4f46\u662f\u672c\u8eab\u7684\u529f\u80fd\u6ca1\u6709\u51fa\u73b0\u95ee\u9898\u3002<\/p>\n<p>\u6f5c\u4f0f\u6545\u969c\u662f\u4e00\u4e2a\u591a\u70b9\u6545\u969c\uff0c\u4e0e\u5176\u5b83\u72ec\u7acb\u7684\u591a\u70b9\u6545\u969c\u7ed3\u5408\u5728\u4e00\u8d77\u4f1a\u76f4\u63a5\u5bfc\u81f4\u5b89\u5168\u76ee\u6807\u7684\u8fdd\u53cd\u3002<\/p>\n<p>\uff086\uff09\u53ef\u63a2\u6d4b\u7684\u6545\u969c\uff08detected 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href=\"https:\/\/yanjingang.com\/blog\/wp-content\/uploads\/2020\/01\/car-safe-5.png\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-3293\" src=\"https:\/\/yanjingang.com\/blog\/wp-content\/uploads\/2020\/01\/car-safe-5.png\" alt=\"\" width=\"868\" height=\"618\" srcset=\"https:\/\/yanjingang.com\/blog\/wp-content\/uploads\/2020\/01\/car-safe-5.png 868w, https:\/\/yanjingang.com\/blog\/wp-content\/uploads\/2020\/01\/car-safe-5-300x214.png 300w, https:\/\/yanjingang.com\/blog\/wp-content\/uploads\/2020\/01\/car-safe-5-768x547.png 768w, https:\/\/yanjingang.com\/blog\/wp-content\/uploads\/2020\/01\/car-safe-5-624x444.png 624w\" sizes=\"(max-width: 868px) 100vw, 868px\" \/><\/a><br \/>\n\u6458\u81ea\uff1ahttps:\/\/blog.csdn.net\/todd_yc\/article\/details\/82731837<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6c7d\u8f66\u529f\u80fd\u5b89\u5168\u4e2d\u7684\u6709\u4e9b\u6982\u5ff5\u6bd4\u8f83\u7ed5\uff0c\u6bd4\u5982\u6545\u969c(fault)\uff0c\u9519\u8bef(error)\uff0c\u5931\u6548(failure)\uff0c\u4eca\u5929\u5c31\u8fd9\u4e09 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