{"id":50,"date":"2026-08-13T20:40:56","date_gmt":"2026-08-13T12:40:56","guid":{"rendered":"https:\/\/bmsvr.com\/?p=50"},"modified":"2026-08-13T20:40:56","modified_gmt":"2026-08-13T12:40:56","slug":"%e7%bb%9d%e7%bc%98%e7%94%b5%e9%98%bb%e6%a3%80%e6%b5%8b%e6%96%b9%e6%b3%95%e5%9c%a8%e7%94%b5%e6%b1%a0%e7%ae%a1%e7%90%86%e7%b3%bb%e7%bb%9f%e4%b8%ad%e7%9a%84%e5%ba%94%e7%94%a8","status":"publish","type":"post","link":"https:\/\/bmsvr.com\/?p=50","title":{"rendered":"\u7edd\u7f18\u7535\u963b\u68c0\u6d4b\u65b9\u6cd5\u5728\u7535\u6c60\u7ba1\u7406\u7cfb\u7edf\u4e2d\u7684\u5e94\u7528"},"content":{"rendered":"

\u7edd\u7f18\u7535\u963b\u68c0\u6d4b\u65b9\u6cd5\u5728\u7535\u6c60\u7ba1\u7406\u7cfb\u7edf\u4e2d\u7684\u5e94\u7528<\/h1>\n
\n

\u7edd\u7f18\u7535\u963b\u68c0\u6d4b\u662f\u7535\u6c60\u7ba1\u7406\u7cfb\u7edf\uff08BMS\uff09\u9ad8\u538b\u5b89\u5168\u67b6\u6784\u4e2d\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u73af\u3002\u672c\u6587\u4ece\u6574\u8f66\u7535\u6c14\u5b89\u5168\u6807\u51c6\u51fa\u53d1\uff0c\u7cfb\u7edf\u68b3\u7406\u7535\u6865\u6cd5\u3001\u4ea4\u6d41\u6ce8\u5165\u6cd5\u3001\u5206\u538b\u6cd5\u7b49\u4e3b\u6d41\u68c0\u6d4b\u65b9\u6848\u7684\u539f\u7406\u3001\u8bef\u5dee\u6765\u6e90\u4e0e\u5de5\u7a0b\u5b9e\u73b0\u8981\u70b9\uff0c\u5e76\u7ed9\u51fa\u57fa\u4e8e MCU \u7684\u5b9e\u65f6\u7edd\u7f18\u76d1\u6d4b\u4ee3\u7801\u793a\u4f8b\u4e0e\u6807\u5b9a\u7b56\u7565\uff0c\u4e3a BMS \u5de5\u7a0b\u5e08\u63d0\u4f9b\u53ef\u843d\u5730\u7684\u8bbe\u8ba1\u53c2\u8003\u3002<\/p>\n<\/blockquote>\n

\n

1. \u5f15\u8a00<\/h2>\n

\u5728\u65b0\u80fd\u6e90\u6c7d\u8f66\u4e0e\u50a8\u80fd\u7cfb\u7edf\u4e2d\uff0c\u52a8\u529b\u7535\u6c60\u5305\u7684\u6bcd\u7ebf\u7535\u538b\u666e\u904d\u8fbe\u5230 300\uff5e800V\uff0c\u751a\u81f3\u66f4\u9ad8\u3002\u9ad8\u538b\u6bcd\u7ebf\u4e0e\u8f66\u8eab\u5730\uff08Chassis Ground\uff09\u4e4b\u95f4\u4e00\u65e6\u53d1\u751f\u7edd\u7f18\u52a3\u5316\u2014\u2014\u65e0\u8bba\u662f\u7535\u6c60\u5728\u6f6e\u6e7f\u3001\u632f\u52a8\u3001\u8001\u5316\u4e0b\u51fa\u73b0\u7684\u610f\u5916\u6f0f\u7535\uff0c\u8fd8\u662f\u78b0\u649e\u540e\u7684\u94dc\u6392\/\u7ebf\u675f\u7834\u635f\u2014\u2014\u90fd\u4f1a\u5e26\u6765\u4e25\u91cd\u7684\u4eba\u8eab\u89e6\u7535\u98ce\u9669\u4e0e\u706b\u707e\u9690\u60a3\u3002<\/p>\n

\u56e0\u6b64\uff0c\u7edd\u7f18\u7535\u963b\u68c0\u6d4b\uff08Insulation Resistance Monitoring\uff0cIRM\uff09<\/strong> \u88ab\u5217\u4e3a BMS \u9ad8\u538b\u5b89\u5168\u7684\u5f3a\u5236\u529f\u80fd\u9879\u3002\u56fd\u5bb6\u6807\u51c6 GB\/T 18384.1-2015\u300a\u7535\u52a8\u6c7d\u8f66 \u5b89\u5168\u8981\u6c42 \u7b2c1\u90e8\u5206\uff1a\u8f66\u8f7d\u53ef\u5145\u7535\u50a8\u80fd\u7cfb\u7edf\uff08REESS\uff09\u300b\u4ee5\u53ca ISO 6469-3 \u5747\u5bf9\u7edd\u7f18\u7535\u963b\u7684\u6700\u4f4e\u9650\u503c<\/strong>\u4e0e\u68c0\u6d4b\u54cd\u5e94\u65f6\u95f4<\/strong>\u505a\u4e86\u660e\u786e\u89c4\u5b9a\uff1a\u5f53\u7edd\u7f18\u7535\u963b\u4f4e\u4e8e 100\u03a9\/V\uff08\u4ea4\u6d41\uff09\u6216 500\u03a9\/V\uff08\u76f4\u6d41\uff0c\u6e7f\u6001\u4e0b\uff09\u65f6\uff0c\u7cfb\u7edf\u5fc5\u987b\u62a5\u8b66\u5e76\u8fdb\u5165\u6545\u969c\u4fdd\u62a4\u72b6\u6001\u3002<\/p>\n

\u672c\u6587\u5c06\u4ece\u6807\u51c6\u3001\u539f\u7406\u3001\u7535\u8def\u5b9e\u73b0\u3001\u8f6f\u4ef6\u7b97\u6cd5\u4e0e\u6807\u5b9a\u6d4b\u8bd5\u4e94\u4e2a\u7ef4\u5ea6\uff0c\u6df1\u5165\u5256\u6790\u7edd\u7f18\u68c0\u6d4b\u5728 BMS \u4e2d\u7684\u5de5\u7a0b\u843d\u5730\u3002<\/p>\n

\n

2. \u5b89\u5168\u6807\u51c6\u4e0e\u9650\u503c\u4f9d\u636e<\/h2>\n

\u7edd\u7f18\u68c0\u6d4b\u4e0d\u662f”\u6d4b\u5f97\u51c6\u4e0d\u51c6”\u7684\u95ee\u9898\uff0c\u800c\u662f”\u80fd\u5426\u5728\u6545\u969c\u53d1\u751f\u524d\u53ca\u65f6\u5207\u65ad”\u7684\u5b89\u5168\u515c\u5e95\u95ee\u9898\u3002\u5de5\u7a0b\u4e0a\u6700\u5e38\u5f15\u7528\u7684\u9650\u503c\u5982\u4e0b\u8868\u6240\u793a\uff1a<\/p>\n\n\n\n\n\n\n\n\n
\u6807\u51c6\/\u6cd5\u89c4<\/th>\n\u9002\u7528\u573a\u666f<\/th>\n\u7edd\u7f18\u7535\u963b\u6700\u5c0f\u9650\u503c<\/th>\n<\/tr>\n<\/thead>\n
GB\/T 18384.1-2015<\/td>\n\u8f66\u8f7d REESS \u76f4\u6d41\u4fa7<\/td>\n\u2265 100\u03a9\/V<\/td>\n<\/tr>\n
ISO 6469-3<\/td>\n\u6574\u8f66\u9ad8\u538b\u6bcd\u7ebf\u4e0e\u5730<\/td>\n\u2265 100\u03a9\/V\uff08\u5e72\u6001\uff09\uff0c500\u03a9\/V \u62a5\u8b66<\/td>\n<\/tr>\n
GB 38031-2020<\/td>\n\u52a8\u529b\u7535\u6c60\u5355\u4f53\/\u7cfb\u7edf<\/td>\n\u7edd\u7f18\u7535\u963b \u2265 100\u03a9\/V<\/td>\n<\/tr>\n
IEC 61851<\/td>\n\u5145\u7535\u6869\/\u5145\u7535\u8bbe\u5907<\/td>\n\u6309\u6f0f\u7535\u6d41 < 3.5mA \u6298\u7b97<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n

\u5de5\u7a0b\u542b\u4e49<\/strong>\uff1a\u4ee5 400V \u6bcd\u7ebf\u4e3a\u4f8b\uff0c\u7edd\u7f18\u7535\u963b\u4f4e\u4e8e 40k\u03a9 \u65f6\u5373\u89e6\u53d1\u62a5\u8b66\uff1b\u4f4e\u4e8e 4k\u03a9 \u65f6\u5c5e\u4e8e\u4e25\u91cd\u6f0f\u7535\u6545\u969c\u3002\u800c\u6b63\u5e38\u7535\u6c60\u5305\u7684\u7edd\u7f18\u7535\u963b\u901a\u5e38\u5728 M\u03a9 \u7ea7\u522b<\/strong>\uff0c\u56e0\u6b64\u68c0\u6d4b\u7535\u8def\u5fc5\u987b\u540c\u65f6\u5177\u5907\u5bbd\u91cf\u7a0b<\/strong>\uff08k\u03a9\uff5eM\u03a9\uff09\u4e0e\u9ad8\u7cbe\u5ea6<\/strong>\uff08\u5c24\u5176\u5728\u4f4e\u963b\u6bb5\uff09\u3002<\/p>\n<\/blockquote>\n

\n

3. \u4e3b\u6d41\u68c0\u6d4b\u65b9\u6848\u4e0e\u539f\u7406<\/h2>\n

3.1 \u5206\u538b\u6cd5\uff08\u88ab\u52a8\u68c0\u6d4b\uff0c\u6700\u7b80\uff09<\/h3>\n

\u5206\u538b\u6cd5\u662f\u6700\u539f\u59cb\u7684\u65b9\u6848\uff1a\u5728\u6bcd\u7ebf\u6b63\u6781\uff08P\uff09\u4e0e\u5730\u3001\u8d1f\u6781\uff08N\uff09\u4e0e\u5730\u4e4b\u95f4\u5404\u4e32\u4e00\u4e2a\u5df2\u77e5\u7684\u9ad8\u963b\u91c7\u6837\u7535\u963b R1\u3001R2\uff0c\u518d\u901a\u8fc7\u5206\u538b\u5173\u7cfb\u53cd\u63a8\u7edd\u7f18\u7535\u963b\u3002<\/p>\n

        P \u2500\u2500\u2500\u2500 R1 \u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500 R_iso+ \u2500\u2500\u2500\u2500 GND\n                        \u2502\n                        \u2514\u2500\u2500\u2500\u2500 R2 \u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500 R_iso- \u2500\u2500\u2500\u2500 GND\n        N \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518\n<\/code><\/pre>\n
\u95ee\u9898<\/strong>\uff1a\u5206\u538b\u6cd5\u8981\u6c42 R1\u3001R2 \u963b\u503c\u8fdc\u5c0f\u4e8e\u5f85\u6d4b\u7edd\u7f18\u7535\u963b\uff0c\u5426\u5219\u4f1a\u5f15\u5165\u4e0d\u53ef\u5ffd\u7565\u7684\u6d4b\u91cf\u8bef\u5dee\uff1b\u800c\u5f53\u7edd\u7f18\u7535\u963b\u6781\u4f4e\uff08\u4e25\u91cd\u6f0f\u7535\uff09\u65f6\uff0c\u91c7\u6837\u652f\u8def\u672c\u8eab\u53c8\u53ef\u80fd\u8fc7\u6d41\u3002\u56e0\u6b64\u5206\u538b\u6cd5\u4ec5\u9002\u5408\u7c97\u7565\u9608\u503c\u5224\u65ad\uff0c\u4e0d\u9002\u5408\u7cbe\u786e\u6d4b\u91cf\u3002<\/p>\n
3.2 \u7535\u6865\u6cd5\uff08\u4e0d\u5e73\u8861\u7535\u6865\uff0cBMS \u4e3b\u6d41\uff09<\/h3>\n
\u4e0d\u5e73\u8861\u7535\u6865\u6cd5\uff08\u4e5f\u79f0\u4e3a”\u5207\u6362\u7535\u963b\u6cd5”\uff09\u662f\u76ee\u524d\u8f66\u8f7d BMS \u5e94\u7528\u6700\u5e7f\u7684\u65b9\u6848\u3002\u5176\u6838\u5fc3\u601d\u60f3\u662f\uff1a\u5728\u5df2\u77e5\u7684\u91c7\u6837\u7f51\u7edc\u4e0a\u4eba\u4e3a\u6ce8\u5165\u4e24\u4e2a\u4e0d\u540c\u7684\u5df2\u77e5\u7535\u963b\u72b6\u6001\uff0c\u901a\u8fc7\u4e24\u6b21\u6d4b\u91cf\u5efa\u7acb\u65b9\u7a0b\u7ec4\uff0c\u8054\u7acb\u89e3\u51fa\u7edd\u7f18\u7535\u963b R_iso+ \u4e0e R_iso-\u3002<\/strong><\/p>\n
\u5178\u578b\u7535\u8def\u5982\u4e0b\uff1a<\/p>\n
 \u6bcd\u7ebf P(+) \u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 R_a \u2500\u2500\u2500\u2500 \u5f00\u5173 S1 \u2500\u2500\u2500\u2500\u2510\n                \u2502                                    \u2502\n                \u2514\u2500\u2500 R_iso+ \u2500\u2500\u2500\u2500\u2510                     \u251c\u2500\u2500 GND\n                                \u251c\u2500\u2500 V_sense           \u2502\n \u6bcd\u7ebf N(-) \u2500\u2500\u2500\u2500\u252c\u2500\u2500 R_iso- \u2500\u2500\u2500\u2500\u2500\u2500\u2518                     \u2502\n                \u2502                                    \u2502\n                \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 R_b \u2500\u2500\u2500\u2500 \u5f00\u5173 S2 \u2500\u2500\u2500\u2500\u2518\n<\/code><\/pre>\n
\u6d4b\u91cf\u6d41\u7a0b\uff08\u5173\u952e\uff01\uff09<\/strong>\uff1a<\/p>\n
    \n
  1. \u7b2c\u4e00\u6b65\uff08S1 \u95ed\u5408\u3001S2 \u65ad\u5f00\uff09<\/strong>\uff1a\u6d4b\u5f97\u8282\u70b9\u5bf9\u5730\u7535\u538b V1\uff1b<\/li>\n
  2. \u7b2c\u4e8c\u6b65\uff08S1 \u65ad\u5f00\u3001S2 \u95ed\u5408\uff09<\/strong>\uff1a\u6d4b\u5f97\u8282\u70b9\u5bf9\u5730\u7535\u538b V2\uff1b<\/li>\n
  3. \u8bbe\u6bcd\u7ebf\u7535\u538b V_pack\uff08\u5df2\u77e5\uff09\uff0c\u91c7\u6837\u7f51\u7edc R_a\u3001R_b \u5df2\u77e5\uff0c\u7535\u82af\u6b63\u8d1f\u6781\u5bf9\u5730\u7edd\u7f18\u7535\u963b\u5206\u522b\u4e3a R_p\u3001R_n\uff0c\u5219\uff1a<\/li>\n<\/ol>\n
    $$
    \n\\frac{V_1}{R_p} + \\frac{V_1}{R_a} = \\frac{V_{pack} – V_1}{R_n}
    \n$$<\/p>\n
    $$
    \n\\frac{V_2}{R_p} = \\frac{V_{pack} – V_2}{R_n} + \\frac{V_{pack} – V_2}{R_b}
    \n$$<\/p>\n
    \u8054\u7acb\u4e24\u5f0f\u5373\u53ef\u89e3\u51fa R_p \u4e0e R_n \u4e24\u4e2a\u672a\u77e5\u91cf\u3002<\/p>\n
    \n
    \u7535\u6865\u6cd5\u7684\u4f18\u70b9\u5728\u4e8e\u6d4b\u91cf\u7cbe\u5ea6\u9ad8\u3001\u53ef\u540c\u65f6\u6c42\u89e3\u6b63\u8d1f\u4e24\u6781\u7edd\u7f18\u7535\u963b<\/strong>\uff1b\u7f3a\u70b9\u662f\u9700\u8981\u5728\u6d4b\u91cf\u671f\u95f4\u6295\u5207\u5f00\u5173\uff0c\u4f1a\u5f15\u5165\u5f00\u5173\u566a\u58f0\uff0c\u4e14\u9ad8\u901f\u5207\u6362\u5bf9\u7ee7\u7535\u5668\/MOSFET \u5bff\u547d\u6709\u8981\u6c42\u3002<\/p>\n<\/blockquote>\n
    3.3 \u4ea4\u6d41\u6ce8\u5165\u6cd5\uff08\u4e3b\u52a8\u68c0\u6d4b\uff0c\u9ad8\u7cbe\u5ea6\uff09<\/h3>\n
    \u4ea4\u6d41\u6ce8\u5165\u6cd5\u901a\u8fc7\u5411\u6bcd\u7ebf\u4e0e\u5730\u4e4b\u95f4\u6ce8\u5165\u4e00\u4e2a\u4f4e\u9891\u4ea4\u6d41\u4fe1\u53f7\uff08\u901a\u5e38\u4e3a 10\uff5e250Hz \u7684\u4f4e\u538b\u6b63\u5f26\u6ce2\uff09\uff0c\u68c0\u6d4b\u6ce8\u5165\u4fe1\u53f7\u7684\u5e45\u503c\u8870\u51cf\u4e0e\u76f8\u79fb\uff0c\u8fdb\u800c\u63a8\u7b97\u7edd\u7f18\u963b\u6297\u7684\u5bb9\u6027\u4e0e\u963b\u6027\u5206\u91cf\u3002<\/p>\n
     \u4fe1\u53f7\u53d1\u751f\u5668 \u2500\u2500 C_couple \u2500\u2500\u252c\u2500\u2500 \u6bcd\u7ebf\n                          \u2502\n                \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2524\n                          \u2502\n \u91c7\u6837\u7535\u963b R_sense \u2500\u2500\u252c\u2500\u2500 \u5730\n                    \u2502\n               ADC \u5dee\u5206\u91c7\u6837 \u2500\u2500 \u9501\u76f8\u653e\u5927\uff08\u6570\u5b57\uff09\n<\/code><\/pre>\n
    \u4ea4\u6d41\u6ce8\u5165\u6cd5\u80fd\u540c\u65f6\u6d4b\u5f97\u7edd\u7f18\u7535\u963b + \u5206\u5e03\u7535\u5bb9\uff08Y \u7535\u5bb9\uff09<\/strong>\uff0c\u5c24\u5176\u9002\u5408\u5927\u5bb9\u91cf\u50a8\u80fd\u7cfb\u7edf\uff08\u5927\u91cf Y \u7535\u5bb9\u5e76\u8054\uff09\u7684\u573a\u666f\u3002\u4f46\u5176\u7535\u8def\u590d\u6742\u3001\u6210\u672c\u9ad8\uff0c\u4e14\u6613\u53d7\u6bcd\u7ebf\u5f00\u5173\u566a\u58f0\u5e72\u6270\uff0c\u901a\u5e38\u7528\u4e8e\u50a8\u80fd\u53d8\u6d41\u5668\uff08PCS\uff09\u4fa7\u800c\u975e\u8f66\u8f7d BMS\u3002<\/p>\n
    \u65b9\u6848\u9009\u578b\u5c0f\u7ed3<\/strong>\uff1a<\/p>\n\n\n\n\n\n\n\n
    \u65b9\u6848<\/th>\n\u7cbe\u5ea6<\/th>\n\u6210\u672c<\/th>\n\u9002\u7528\u573a\u666f<\/th>\n\u80fd\u5426\u6d4b\u6b63\u8d1f\u6781\u72ec\u7acb\u7edd\u7f18<\/th>\n<\/tr>\n<\/thead>\n
    \u5206\u538b\u6cd5<\/td>\n\u4f4e<\/td>\n\u6781\u4f4e<\/td>\n\u7b80\u5355\u9608\u503c\u544a\u8b66<\/td>\n\u5426<\/td>\n<\/tr>\n
    \u7535\u6865\u6cd5<\/td>\n\u9ad8<\/td>\n\u4e2d<\/td>\n\u8f66\u8f7d BMS \u4e3b\u65b9\u6848<\/td>\n\u662f<\/td>\n<\/tr>\n
    \u4ea4\u6d41\u6ce8\u5165\u6cd5<\/td>\n\u6700\u9ad8<\/td>\n\u9ad8<\/td>\n\u50a8\u80fd PCS\/\u5927\u5bb9\u91cf\u7cfb\u7edf<\/td>\n\u662f\uff08\u5bb9\u6027\u4e5f\u53ef\uff09<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
    \n
    4. \u7535\u6865\u6cd5\u7684\u8f6f\u4ef6\u5b9e\u73b0\u4e0e\u7b97\u6cd5\u7ec6\u8282<\/h2>\n
    \u4e0b\u9762\u7ed9\u51fa\u57fa\u4e8e MCU \u7684\u7535\u6865\u6cd5\u7edd\u7f18\u68c0\u6d4b\u7684\u6838\u5fc3\u5b9e\u73b0\u3002\u5047\u8bbe\u4e24\u4e2a\u5f00\u5173 S1\u3001S2 \u901a\u8fc7 GPIO \u63a7\u5236\uff0c\u91c7\u6837\u7531 ADC \u5b8c\u6210\u3002<\/p>\n
    \/* bms_insulation.h *\/\ntypedef struct {\n    float v_pack;       \/\/ \u6bcd\u7ebf\u7535\u538b (V)\n    float v1;           \/\/ S1\u95ed\u5408\u3001S2\u65ad\u5f00\u65f6\u7684\u91c7\u6837\u7535\u538b\n    float v2;           \/\/ S1\u65ad\u5f00\u3001S2\u95ed\u5408\u65f6\u7684\u91c7\u6837\u7535\u538b\n    float r_a;          \/\/ \u6b63\u6781\u91c7\u6837\u6ce8\u5165\u7535\u963b (\u03a9)\n    float r_b;          \/\/ \u8d1f\u6781\u91c7\u6837\u6ce8\u5165\u7535\u963b (\u03a9)\n    float r_iso_p;      \/\/ \u6b63\u6781\u5bf9\u5730\u7edd\u7f18\u7535\u963b (\u03a9)\n    float r_iso_n;      \/\/ \u8d1f\u6781\u5bf9\u5730\u7edd\u7f18\u7535\u963b (\u03a9)\n    float r_iso_min;    \/\/ \u6b63\u8d1f\u6781\u7edd\u7f18\u7535\u963b\u8f83\u5c0f\u8005\n} InsulationResult;\n\n\/* \u7535\u6865\u6cd5\u6c42\u89e3\u6b63\u8d1f\u6781\u7edd\u7f18\u7535\u963b\n * \u8fd4\u56de 0 \u8868\u793a\u6210\u529f\uff0c-1 \u8868\u793a\u6570\u636e\u975e\u6cd5\uff08\u5206\u6bcd\u63a5\u8fd10\u6216\u7ed3\u679c\u5f02\u5e38\uff09\n *\/\nint insulation_bridge_solve(InsulationResult *r) {\n    float vp = r->v_pack;\n    if (vp <= 0.0f || r->r_a <= 0.0f || r->r_b <= 0.0f) {\n        return -1;\n    }\n\n    \/* \u72b6\u60011 (S1\u95ed\u5408 S2\u65ad\u5f00):\n     *   V1\/Rp + V1\/Ra = (Vp - V1)\/Rn\n     * \u72b6\u60012 (S1\u65ad\u5f00 S2\u95ed\u5408):\n     *   V2\/Rp = (Vp - V2)\/Rn + (Vp - V2)\/Rb\n     *\n     * \u5316\u4e3a\u7ebf\u6027\u65b9\u7a0b: A * x = b, \u5176\u4e2d x = [1\/Rp, 1\/Rn]^T\n     *\/\n    float a11 = r->v1;                                  \/\/ 1\/Rp \u7cfb\u6570\n    float a12 = -(vp - r->v1);                          \/\/ 1\/Rn \u7cfb\u6570\n    float b1  = -r->v1 \/ r->r_a;\n\n    float a21 = r->v2;\n    float a22 = -(vp - r->v2);\n    float b2  = (vp - r->v2) \/ r->r_b;\n\n    float det = a11 * a22 - a21 * a12;\n    if (fabsf(det) < 1e-9f) {\n        return -1;  \/\/ \u5947\u5f02\uff0c\u6d4b\u91cf\u65e0\u6548\n    }\n\n    float inv_rp = (b1 * a22 - b2 * a12) \/ det;\n    float inv_rn = (a11 * b2 - a21 * b1) \/ det;\n\n    if (inv_rp <= 0.0f || inv_rn <= 0.0f) {\n        return -1;  \/\/ \u7269\u7406\u4e0a\u4e0d\u5408\u7406\u7684\u8d1f\u7edd\u7f18\u7535\u963b\n    }\n\n    r->r_iso_p = 1.0f \/ inv_rp;\n    r->r_iso_n = 1.0f \/ inv_rn;\n    r->r_iso_min = (r->r_iso_p < r->r_iso_n) ? r->r_iso_p : r->r_iso_n;\n    return 0;\n}\n<\/code><\/pre>\n
    \u4e24\u4e2a\u5173\u952e\u7684\u5de5\u7a0b\u7ec6\u8282<\/strong>\uff1a<\/p>\n
      \n
    1. \u591a\u6b21\u91c7\u6837\u53d6\u5e73\u5747<\/strong>\uff1a\u6bcd\u7ebf\u7535\u538b\u5728\u9a71\u52a8\u5de5\u51b5\u4e0b\u6ce2\u52a8\u5267\u70c8\uff0c\u5355\u6b21\u91c7\u6837\u7684 V1\/V2 \u566a\u58f0\u5927\u3002\u5de5\u7a0b\u4e0a\u5e94\u5728\u5f00\u5173\u7a33\u5b9a\u540e\u8fde\u7eed\u91c7\u6837 16\uff5e32 \u6b21\u5e76\u505a\u4e2d\u503c\u6ee4\u6ce2\/\u5e73\u5747\uff0c\u518d\u4ee3\u5165\u6c42\u89e3\u3002<\/li>\n
    2. \u5f00\u5173\u5207\u6362\u7684\u5ef6\u65f6<\/strong>\uff1a\u5f00\u5173\u5207\u6362\u540e\u9700\u7b49\u5f85 RC \u7f51\u7edc\u7a33\u5b9a\uff08\u5178\u578b Y \u7535\u5bb9 + \u91c7\u6837\u7535\u963b\u7684 \u03c4 \u7ea6\u4e3a 2\uff5e5ms\uff09\uff0c\u5426\u5219 V1\/V2 \u4f1a\u5728\u8fc7\u6e21\u8fc7\u7a0b\u4e2d\u5931\u771f\uff0c\u5bfc\u81f4\u89e3\u51fa\u7684\u7edd\u7f18\u7535\u963b\u504f\u5c0f\u751a\u81f3\u4e3a\u8d1f\u3002<\/li>\n<\/ol>\n
      \n
      5. \u8bef\u5dee\u6765\u6e90\u4e0e\u6807\u5b9a\u7b56\u7565<\/h2>\n
      \u7535\u6865\u6cd5\u7684\u6d4b\u91cf\u7cbe\u5ea6\u53d7\u4ee5\u4e0b\u56e0\u7d20\u5f71\u54cd\uff0c\u9700\u9010\u4e00\u63a7\u5236\uff1a<\/p>\n
      5.1 \u91c7\u6837\u7535\u963b\u7cbe\u5ea6\u4e0e\u6e29\u6f02<\/h3>\n
      R_a\u3001R_b \u76f4\u63a5\u53c2\u4e0e\u65b9\u7a0b\uff0c\u5176\u8bef\u5dee\u4f1a\u4f20\u9012\u5230\u8ba1\u7b97\u7ed3\u679c\u3002\u63a8\u8350\u4f7f\u7528 0.1% \u7cbe\u5ea6\u3001\u4f4e\u6e29\u5ea6\u7cfb\u6570\uff08\u00b125ppm\/\u2103\uff09<\/strong> \u7684\u7cbe\u5bc6\u7535\u963b\uff0c\u5e76\u5728\u73af\u5883\u6e29\u5ea6\u53d8\u5316\u5927\u7684\u573a\u666f\u4e0b\u505a\u6e29\u5ea6\u8865\u507f\u6807\u5b9a\u3002<\/p>\n
      5.2 ADC \u91cf\u5316\u8bef\u5dee<\/h3>\n
      V1\u3001V2 \u7684 ADC \u5206\u8fa8\u7387\u51b3\u5b9a\u4e86\u4f4e\u963b\u6bb5\u7684\u6d4b\u91cf\u4e0b\u9650\u3002\u4ee5 12-bit ADC\u3001Vref=3.3V \u4e3a\u4f8b\uff0cLSB\u22480.8mV\uff1b\u5f53\u7edd\u7f18\u7535\u963b\u8dcc\u81f3 40k\u03a9 \u9644\u8fd1\u65f6\uff0c\u91c7\u6837\u7535\u538b\u7684\u5206\u8fa8\u7387\u53ef\u80fd\u4e0d\u8db3\u3002\u5fc5\u8981\u65f6\u91c7\u7528 16-bit ADC \u6216\u5dee\u5206\u91c7\u6837 + \u589e\u76ca\u653e\u5927<\/strong>\u3002<\/p>\n
      5.3 Y \u7535\u5bb9\u7684\u5145\u653e\u7535\u5f71\u54cd<\/h3>\n
      \u8f66\u89c4\u7cfb\u7edf\u666e\u904d\u5b58\u5728\u5927\u5bb9\u91cf Y \u7535\u5bb9\uff08\u51e0 nF\uff5e\u51e0\u5341 nF\uff09\uff0c\u5f00\u5173\u5207\u6362\u65f6 Y \u7535\u5bb9\u7684\u5145\u653e\u7535\u4f1a\u53e0\u52a0\u5230\u91c7\u6837\u7535\u538b\u4e0a\u3002\u6807\u5b9a\u7b56\u7565<\/strong>\uff1a\u5728\u9759\u6b62\u3001\u6bcd\u7ebf\u7535\u538b\u7a33\u5b9a\u5de5\u51b5\u4e0b\u81ea\u6821\u51c6\uff0c\u628a Y \u7535\u5bb9\u7684\u7a33\u6001\u6cc4\u6f0f\u7535\u6d41\u4ece\u6d4b\u91cf\u503c\u4e2d\u6263\u9664\u3002<\/p>\n
      5.4 \u6807\u5b9a\u6d41\u7a0b\u5efa\u8bae<\/h3>\n
        \n
      1. \u79bb\u7ebf\u6807\u5b9a<\/strong>\uff1a\u7528\u5df2\u77e5\u7684\u7cbe\u5bc6\u7535\u963b\uff08\u5982 100k\u03a9\u3001500k\u03a9\u30011M\u03a9\u300110M\u03a9\uff09\u66ff\u4ee3 R_iso+\u3001R_iso-\uff0c\u5728\u53f0\u67b6\u4e0a\u9010\u70b9\u8bb0\u5f55 ADC \u8bfb\u6570\uff0c\u62df\u5408\u91c7\u6837-\u963b\u503c\u66f2\u7ebf\u3002<\/li>\n
      2. \u5728\u7ebf\u81ea\u68c0<\/strong>\uff1a\u4e0a\u7535\u540e\u5148\u505a\u4e00\u6b21\u7a7a\u8f7d\u81ea\u68c0\uff08\u65e0\u5916\u90e8\u8d1f\u8f7d\uff09\uff0c\u786e\u8ba4\u68c0\u6d4b\u901a\u9053\u57fa\u7ebf\u6b63\u5e38\u3002<\/li>\n
      3. \u6e7f\u5ea6\/\u6e29\u5ea6\u8865\u507f<\/strong>\uff1a\u5728\u9ad8\u4f4e\u6e7f\u3001\u9ad8\u4f4e\u6e29\u73af\u5883\u4e0b\u590d\u6807\uff0c\u5efa\u7acb\u4fee\u6b63\u8868\u6216\u591a\u9879\u5f0f\u62df\u5408\u7cfb\u6570\u3002<\/li>\n<\/ol>\n
        \n
        6. \u6545\u969c\u5206\u7ea7\u4e0e\u6574\u8f66\u7b56\u7565\u8054\u52a8<\/h2>\n
        \u7edd\u7f18\u68c0\u6d4b\u7684\u6700\u7ec8\u76ee\u7684\u662f\u9a71\u52a8\u5b89\u5168\u7b56\u7565<\/strong>\u3002BMS \u901a\u5e38\u5c06\u7edd\u7f18\u7535\u963b\u5212\u5206\u4e3a\u4e09\u4e2a\u7b49\u7ea7\uff1a<\/p>\n\n\n\n\n\n\n\n
        \u7b49\u7ea7<\/th>\n\u7edd\u7f18\u7535\u963b\uff08\u4ee5 400V \u5e73\u53f0\u4e3a\u4f8b\uff09<\/th>\nBMS \u52a8\u4f5c<\/th>\n<\/tr>\n<\/thead>\n
        \u6b63\u5e38<\/td>\n> 40k\u03a9<\/td>\n\u65e0\u52a8\u4f5c\uff0c\u6301\u7eed\u76d1\u6d4b<\/td>\n<\/tr>\n
        \u4e00\u7ea7\u544a\u8b66<\/td>\n4k\u03a9 ~ 40k\u03a9<\/td>\n\u4e0a\u62a5\u6574\u8f66\uff0c\u70b9\u4eae\u4eea\u8868\u8b66\u544a\uff0c\u9650\u5236\u5145\u7535\u529f\u7387<\/td>\n<\/tr>\n
        \u4e25\u91cd\u6545\u969c<\/td>\n< 4k\u03a9\uff08\u6216 < 100\u03a9\/V\uff09<\/td>\n\u7acb\u5373\u65ad\u5f00\u4e3b\u6b63\/\u4e3b\u8d1f\u63a5\u89e6\u5668\uff0c\u7981\u6b62\u5145\u653e\u7535<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
        \n
        \u8054\u52a8\u7b56\u7565\u9700\u4e0e\u6574\u8f66\u63a7\u5236\u5668\uff08VCU\uff09\u3001\u5145\u7535\u673a\uff08OBC\uff09\u534f\u8c03\u3002\u7279\u522b\u662f\u5145\u7535\u573a\u666f<\/strong>\u4e0b\uff0c\u7edd\u7f18\u6545\u969c\u5fc5\u987b\u4f18\u5148\u5207\u65ad\u5145\u7535\u63a5\u89e6\u5668\uff0c\u5e76\u7981\u6b62\u540e\u7eed\u5feb\u5145\u63e1\u624b\uff0c\u907f\u514d\u4e8c\u6b21\u4e8b\u6545\u53d1\u751f\u3002<\/p>\n<\/blockquote>\n
        \n
        7. \u5b9e\u6218\u8981\u70b9\u603b\u7ed3<\/h2>\n
          \n
        1. \u65b9\u6848\u4f18\u5148\u9009\u7535\u6865\u6cd5<\/strong>\uff1a\u8f66\u8f7d BMS \u5728\u7cbe\u5ea6\u3001\u6210\u672c\u3001\u53ef\u9760\u6027\u4e0a\u7535\u6865\u6cd5\u7efc\u5408\u6700\u4f18\uff1b\u50a8\u80fd\u5927\u7cfb\u7edf\u518d\u8003\u8651\u4ea4\u6d41\u6ce8\u5165\u6cd5\u3002<\/li>\n
        2. \u91c7\u6837\u7f51\u7edc\u963b\u503c\u8981\u5e73\u8861<\/strong>\uff1aR_a\u3001R_b \u8fc7\u5927\u4f1a\u964d\u4f4e\u4f4e\u963b\u6bb5\u7075\u654f\u5ea6\uff0c\u8fc7\u5c0f\u5219\u5728\u4e25\u91cd\u6f0f\u7535\u65f6\u8fc7\u6d41\uff0c\u901a\u5e38\u53d6 100k\u03a9\uff5e1M\u03a9 \u533a\u95f4\uff0c\u9700\u7ed3\u5408\u6bcd\u7ebf\u7535\u538b\u6821\u6838\u3002<\/li>\n
        3. \u5f00\u5173\u5668\u4ef6\u9009\u578b<\/strong>\uff1a\u4f18\u5148\u9009\u5149\u8026\u56fa\u6001\u7ee7\u7535\u5668\uff08MOS Relay\uff09<\/strong>\uff0c\u5bfc\u901a\u7535\u963b\u4f4e\u3001\u8010\u538b\u9ad8\u3001\u65e0\u673a\u68b0\u5bff\u547d\u95ee\u9898\u3002<\/li>\n
        4. \u6ee4\u6ce2\u4e0e\u5ef6\u65f6\u662f\u7cbe\u5ea6\u751f\u547d\u7ebf<\/strong>\uff1a\u52a1\u5fc5\u4fee\u597d\u5f00\u5173\u7a33\u5b9a\u5ef6\u65f6\u4e0e\u6ed1\u52a8\u5e73\u5747\uff0c\u5426\u5219\u8ba1\u7b97\u51fa\u7684\u7edd\u7f18\u503c\u6296\u52a8\u4f1a\u5bfc\u81f4\u8bef\u62a5\u8b66\u3002<\/li>\n
        5. \u505a\u597d\u79bb\u7ebf\u6807\u5b9a<\/strong>\uff1a\u7edd\u7f18\u68c0\u6d4b”\u6d4b\u5f97\u51c6”\u7684\u524d\u63d0\u662f\u6807\u5f97\u597d\uff0c\u52a1\u5fc5\u5efa\u7acb\u91c7\u6837-\u963b\u503c\u6620\u5c04\u4e0e\u6e29\u6e7f\u5ea6\u8865\u507f\u3002<\/li>\n
        6. \u5b89\u5168\u7b56\u7565\u95ed\u73af<\/strong>\uff1a\u68c0\u6d4b\u53ea\u662f\u624b\u6bb5\uff0c\u53ca\u65f6\u5207\u65ad\u63a5\u89e6\u5668\u3001\u4e0a\u62a5\u6574\u8f66\u624d\u662f\u6700\u7ec8\u76ee\u7684\uff0c\u52a1\u5fc5\u6253\u901a BMS\u2192VCU\/OBC \u7684\u6545\u969c\u94fe\u8def\u3002<\/li>\n<\/ol>\n
          \n
          8. \u7ed3\u8bed<\/h2>\n
          \u7edd\u7f18\u7535\u963b\u68c0\u6d4b\u770b\u4f3c\u662f BMS \u4f17\u591a\u529f\u80fd\u4e2d”\u4e0d\u8d77\u773c”\u7684\u4e00\u73af\uff0c\u5374\u76f4\u63a5\u5173\u7cfb\u5230\u6574\u8f66\u9ad8\u538b\u5b89\u5168\u4e0e\u4eba\u8eab\u5b89\u5168\u3002\u7406\u89e3\u7535\u6865\u6cd5\u7684\u7269\u7406\u672c\u8d28\u3001\u63a7\u5236\u597d\u8bef\u5dee\u6765\u6e90\u3001\u5efa\u7acb\u5b8c\u5584\u7684\u6807\u5b9a\u4e0e\u6545\u969c\u8054\u52a8\u673a\u5236\uff0c\u662f\u6bcf\u4e2a BMS \u5de5\u7a0b\u5e08\u7684\u5fc5\u4fee\u8bfe\u3002<\/p>\n
          \u968f\u7740 800V \u9ad8\u538b\u5e73\u53f0\u4e0e\u6db2\u51b7\u5927\u5bb9\u91cf\u50a8\u80fd\u7cfb\u7edf\u7684\u666e\u53ca\uff0c\u7edd\u7f18\u68c0\u6d4b\u6b63\u671d\u7740\u66f4\u9ad8\u7cbe\u5ea6\u3001\u66f4\u5feb\u54cd\u5e94\u3001\u66f4\u5f3a\u6297\u6270<\/strong>\u7684\u65b9\u5411\u6f14\u8fdb\uff0c\u4ea4\u6d41\u6ce8\u5165\u4e0e\u6570\u5b57\u9501\u76f8\u653e\u5927\u7b49\u65b0\u6280\u672f\u4e5f\u5c06\u9010\u6b65\u4e0b\u6c89\u5230\u8f66\u8f7d\u573a\u666f\u3002\u503c\u5f97\u6301\u7eed\u5173\u6ce8\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
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