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Road surface unevenness significantly affects both the driving safety of road vehicles and their dynamic responses. However, the existing datadriven methods for road surface classification struggle to efficiently handle timevarying parameters and vehicle speeds. Meanwhile, the existing modelbased road surface recognition algorithms require known and accurate vehicle models, facing the challenge of acquiring vehicle physical parameters in realworld applications. This paper proposes a novel pavement classification algorithm that begins by backcalculating the equivalent pavement profile, followed by data preprocessing. Subsequently, it computes time and frequency domain features for the equivalent pavement profile and response information, and key features are extracted using the ReliefF algorithm. A radial basis function neural network is used to construct a classifier for pavement grading and recognition. Finally, the robustness of the proposed algorithm is verified through simulation tests and realvehicle tests with different vehicle parameters and speeds.
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路面不平度对道路车辆行驶安全性及车辆动力学响应具有重要影响。通过将路面不平度识别与先进悬架控制结合,有望能进一步提升乘员舒适性和车辆的操纵稳定性。现有基于数据驱动的路面分类方法难以高效处理时变参数与车速,现有基于模型的路面识别算法需要已知精确车辆模型,在实际应用中面临车辆物理参数难以获得的问题。提出一种融合模型和数据驱动的路面分类算法,采用基于模型的方法反算等效路面轮廓,结合数据预处理方法,对车辆响应和反算等效路面轮廓数据进行滤波;对等效路面轮廓和响应信息进行时域频域特征计算,采用ReliefF算法进行关键特征提取,构建基于径向基函数神经网络的路面分类器,进行路面分级识别;通过仿真试验和实车试验验证了不同车辆参数和车速下所提出的算法鲁棒性。
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相同车速不同工况下车辆响应, figureFileSmall=yPcQ67gsN1EWtiFqWdtjqQ==, figureFileBig=Qz89TPiRrosKYnBQvr4f9g==, tableContent=null), ArticleFig(id=1154016960149967680, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016879887765532, language=EN, label=null, caption=null, figureFileSmall=WrCKeOjRWSxL23Iyoe6FXw==, figureFileBig=E0RSYUGE6Y4g2pkzJGQjtA==, tableContent=null), ArticleFig(id=1154016960191910722, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016879887765532, language=CN, label=图 11, caption=
不同车速不同等级路面滤波前路面高程, figureFileSmall=WrCKeOjRWSxL23Iyoe6FXw==, figureFileBig=E0RSYUGE6Y4g2pkzJGQjtA==, tableContent=null), ArticleFig(id=1154016960246436676, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016879887765532, language=EN, label=null, caption=null, figureFileSmall=YdZ9qblN+ny49LTNnJTBGA==, figureFileBig=2TBcwwyC69YnZ6vsHN3aoA==, tableContent=null), ArticleFig(id=1154016960300962630, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016879887765532, language=CN, label=图 12, caption=
不同车速不同等级路面滤波后路面高程, figureFileSmall=YdZ9qblN+ny49LTNnJTBGA==, figureFileBig=2TBcwwyC69YnZ6vsHN3aoA==, tableContent=null), ArticleFig(id=1154016960359682888, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016879887765532, language=EN, label=null, caption=null, figureFileSmall=Y3MEcLJu9ku3UyHGSIb+XQ==, figureFileBig=wVT0/yt0Qc9nLyr+f552FQ==, tableContent=null), ArticleFig(id=1154016960426791754, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016879887765532, language=CN, label=图 13, caption=
路面分类, figureFileSmall=Y3MEcLJu9ku3UyHGSIb+XQ==, figureFileBig=wVT0/yt0Qc9nLyr+f552FQ==, tableContent=null), ArticleFig(id=1154016960481317708, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016879887765532, language=EN, label=null, caption=null, figureFileSmall=h7fUL77rJVavLsspMX8IDg==, figureFileBig=FeyXJUUiUO1m1BaEo9tuDA==, tableContent=null), ArticleFig(id=1154016960649089869, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016879887765532, language=CN, label=图 14, caption=
簧载质量增大后的分类, figureFileSmall=h7fUL77rJVavLsspMX8IDg==, figureFileBig=FeyXJUUiUO1m1BaEo9tuDA==, tableContent=null), ArticleFig(id=1154016960703615823, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016879887765532, language=EN, label=null, caption=null, figureFileSmall=VVDjcv81PDI8KFzJJMnd9A==, figureFileBig=Grdra/Xo4L1E4MZCai7C2Q==, tableContent=null), ArticleFig(id=1154016960774918993, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016879887765532, language=CN, label=图 15, caption=
簧载质量减少后的分类, figureFileSmall=VVDjcv81PDI8KFzJJMnd9A==, figureFileBig=Grdra/Xo4L1E4MZCai7C2Q==, tableContent=null), ArticleFig(id=1154016960862999379, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016879887765532, language=EN, label=null, caption=null, figureFileSmall=DG96dPzbNxtLlkkc0iUVsA==, figureFileBig=1MtBx9ApfYV2ZAn8qfNNxw==, tableContent=null), ArticleFig(id=1154016960921719637, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016879887765532, language=CN, label=图 16, caption=
试验车辆和采集系统, figureFileSmall=DG96dPzbNxtLlkkc0iUVsA==, figureFileBig=1MtBx9ApfYV2ZAn8qfNNxw==, tableContent=null), ArticleFig(id=1154016961005605719, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016879887765532, language=EN, label=null, caption=null, figureFileSmall=eO1zEwy4eYvohIDs0rib4g==, figureFileBig=QNbF0d1P9sl5N1sOuYF39Q==, tableContent=null), ArticleFig(id=1154016961060131673, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016879887765532, language=CN, label=图 17, caption=
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路面分类, figureFileSmall=Z4TQuNtOsup2Vozdca1WvQ==, figureFileBig=LAZVCAGIk5KzNKz9jK5xUA==, tableContent=null), ArticleFig(id=1154016961269846879, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016879887765532, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 值 |
| ${m}_{\mathrm{b}}/\mathrm{{kg}}$ | 410 |
| ${m}_{\mathrm{w}}/\mathrm{{kg}}$ | 40 |
| ${k}_{\mathrm{s}}/\left( {\mathrm{N}/\mathrm{m}}\right)$ | 18 514 |
| ${k}_{\mathrm{t}}/\left( {\mathrm{N}/\mathrm{m}}\right)$ | 210 000 |
| ${c}_{\mathrm{p}}/\left( {\mathrm{{kNs}}/\mathrm{m}}\right)$ | 2000 |
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四分之一车辆模型参数, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 值 |
| ${m}_{\mathrm{b}}/\mathrm{{kg}}$ | 410 |
| ${m}_{\mathrm{w}}/\mathrm{{kg}}$ | 40 |
| ${k}_{\mathrm{s}}/\left( {\mathrm{N}/\mathrm{m}}\right)$ | 18 514 |
| ${k}_{\mathrm{t}}/\left( {\mathrm{N}/\mathrm{m}}\right)$ | 210 000 |
| ${c}_{\mathrm{p}}/\left( {\mathrm{{kNs}}/\mathrm{m}}\right)$ | 2000 |
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| 特征 | 方差 | SRA | RMS | 最大值 | 能量 | IRI |
| 路面高程 | 时域特征 | 1 | 2 | 3 | 4 | N/A | 43 |
| 频域特征 | 能量 | N/A | N/A | N/A | N/A | 5 | N/A |
| aA2 | 6 | 10 | 14 | 18 | N/A | N/A |
| Ad2 | 7 | 11 | 15 | 19 | N/A | N/A |
| Da2 | 8 | 12 | 16 | 20 | N/A | N/A |
| Dd2 | 9 | 13 | 17 | 21 | N/A | N/A |
| 车辆响应 | 时域特征 | 22 | 23 | 24 | 25 | N/A | N/A |
| 频域特征 | 能量 | N/A | N/A | N/A | N/A | 26 | N/A |
| aA2 | 27 | 31 | 35 | 39 | N/A | N/A |
| Ad2 | 28 | 32 | 36 | 40 | N/A | N/A |
| Da2 | 29 | 33 | 37 | 41 | N/A | N/A |
| Dd2 | 30 | 34 | 38 | 42 | N/A | N/A |
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43 个特征及其编号, figureFileSmall=null, figureFileBig=null, tableContent=
| 特征 | 方差 | SRA | RMS | 最大值 | 能量 | IRI |
| 路面高程 | 时域特征 | 1 | 2 | 3 | 4 | N/A | 43 |
| 频域特征 | 能量 | N/A | N/A | N/A | N/A | 5 | N/A |
| aA2 | 6 | 10 | 14 | 18 | N/A | N/A |
| Ad2 | 7 | 11 | 15 | 19 | N/A | N/A |
| Da2 | 8 | 12 | 16 | 20 | N/A | N/A |
| Dd2 | 9 | 13 | 17 | 21 | N/A | N/A |
| 车辆响应 | 时域特征 | 22 | 23 | 24 | 25 | N/A | N/A |
| 频域特征 | 能量 | N/A | N/A | N/A | N/A | 26 | N/A |
| aA2 | 27 | 31 | 35 | 39 | N/A | N/A |
| Ad2 | 28 | 32 | 36 | 40 | N/A | N/A |
| Da2 | 29 | 33 | 37 | 41 | N/A | N/A |
| Dd2 | 30 | 34 | 38 | 42 | N/A | N/A |
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| 路面类型 | 车速/(km/h) | 路面长度/m |
| A 级路面 | 20,40,60 | 每种车速各 5000 |
| B 级路面 | 20,40,60 | 每种车速各 5000 |
| C级路面 | 20,40,60 | 每种车速各 5000 |
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路面集定义, figureFileSmall=null, figureFileBig=null, tableContent=
| 路面类型 | 车速/(km/h) | 路面长度/m |
| A 级路面 | 20,40,60 | 每种车速各 5000 |
| B 级路面 | 20,40,60 | 每种车速各 5000 |
| C级路面 | 20,40,60 | 每种车速各 5000 |
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| 索引号 | 描述 |
| 20 | 路面高程 Da2 最大值 |
| 2 | 路面高程 SRA |
| 13 | 路面高程Dd2 SRA |
| 43 | 路面 IRI |
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| 索引号 | 描述 |
| 20 | 路面高程 Da2 最大值 |
| 2 | 路面高程 SRA |
| 13 | 路面高程Dd2 SRA |
| 43 | 路面 IRI |
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| 路面类型 | 召回率 | 误检率 |
| A 级路面 | 0.980 | 0.008 |
| B 级路面 | 0.974 | 0.029 |
| C级路面 | 0.990 | 0.017 |
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分类模型评价, figureFileSmall=null, figureFileBig=null, tableContent=
| 路面类型 | 召回率 | 误检率 |
| A 级路面 | 0.980 | 0.008 |
| B 级路面 | 0.974 | 0.029 |
| C级路面 | 0.990 | 0.017 |
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| 路面类型 | 召回率 | 误检率 |
| A 级路面 | 0.968 | 0.018 |
| B 级路面 | 0.960 | 0.056 |
| C级路面 | 0.974 | 0.022 |
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簧载质量增大后分类模型评价, figureFileSmall=null, figureFileBig=null, tableContent=
| 路面类型 | 召回率 | 误检率 |
| A 级路面 | 0.968 | 0.018 |
| B 级路面 | 0.960 | 0.056 |
| C级路面 | 0.974 | 0.022 |
), ArticleFig(id=1154016962016433013, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016879887765532, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 路面类型 | 召回率 | 误检率 |
| A 级路面 | 0.972 | 0.022 |
| B 级路面 | 0.956 | 0.047 |
| C级路面 | 0.980 | 0.021 |
), ArticleFig(id=1154016962075153271, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016879887765532, language=CN, label=表 8, caption=
簧载质量减小后分类模型评价, figureFileSmall=null, figureFileBig=null, tableContent=
| 路面类型 | 召回率 | 误检率 |
| A 级路面 | 0.972 | 0.022 |
| B 级路面 | 0.956 | 0.047 |
| C级路面 | 0.980 | 0.021 |
), ArticleFig(id=1154016962129679225, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016879887765532, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 索引号 | 描述 |
| 4 | 空间域路面高程最大值 |
| 2 | 路面高程SRA |
| 43 | 路面 IRI |
| 26 | 车辆响应 Ad2 最大值 |
), ArticleFig(id=1154016962192593787, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016879887765532, language=CN, label=表 9, caption=
特征选取结果, figureFileSmall=null, figureFileBig=null, tableContent=
| 索引号 | 描述 |
| 4 | 空间域路面高程最大值 |
| 2 | 路面高程SRA |
| 43 | 路面 IRI |
| 26 | 车辆响应 Ad2 最大值 |
), ArticleFig(id=1154016962247119741, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016879887765532, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 路面类型 | 召回率 | 误检率 |
| 随机短波路 | 0.800 | 0.027 |
| 沥青挤压变形路 | 1 | 0 |
| 平整路面 | 1 | 0.167 |
), ArticleFig(id=1154016962318422911, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016879887765532, language=CN, label=表 10, caption=
分类模型评价, figureFileSmall=null, figureFileBig=null, tableContent=
| 路面类型 | 召回率 | 误检率 |
| 随机短波路 | 0.800 | 0.027 |
| 沥青挤压变形路 | 1 | 0 |
| 平整路面 | 1 | 0.167 |
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