Article(id=1211009533007237168, tenantId=1146029695717560320, journalId=1189621681917173762, issueId=1211009531837026345, articleNumber=null, orderNo=null, doi=10.19620/j.cnki.1000-3703.20230471, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=null, receivedDateStr=null, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1766656772138, onlineDateStr=2025-12-25, pubDate=1708704000000, pubDateStr=2024-02-24, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1766656772138, onlineIssueDateStr=2025-12-25, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1766656772138, creator=13701087609, updateTime=1766656772138, updator=13701087609, issue=Issue{id=1211009531837026345, tenantId=1146029695717560320, journalId=1189621681917173762, year='2024', volume='', issue='2', pageStart='1', pageEnd='62', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1766656771859, creator=13701087609, updateTime=1766737547840, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1211348330903376234, tenantId=1146029695717560320, journalId=1189621681917173762, issueId=1211009531837026345, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1211348330903376235, tenantId=1146029695717560320, journalId=1189621681917173762, issueId=1211009531837026345, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=25, endPage=32, ext={EN=ArticleExt(id=1211009533267284017, articleId=1211009533007237168, tenantId=1146029695717560320, journalId=1189621681917173762, language=EN, title=AEB Strategy Considering the Braking Intention of Front Vehicle and Its Testing and Evaluation Method, columnId=null, journalTitle=Automobile Technology, columnName=null, runingTitle=null, highlight=null, articleAbstract=
To improve the collision avoidance performance of the Autonomous Emergency Braking (AEB) system in dangerous braking scenarios, this paper proposed an AEB control strategy considering the braking intention of the front vehicle and its test and evaluation method. A joint platform of PreScan, Simulink, and driving simulator was established to collect drivers’ braking operation data, classify the braking intention of the front car based on K-means clustering method, and use sliding time window to extract intention recognition model to train the dataset. The front car uses a double-layer hidden Markov model to identify the driver’s braking intention, while the main car calculates the critical safety distance threshold based on different braking intentions and performs collision avoidance control. A PreScan+Simulink virtual simulation and test environment was established, and AEB strategy comprehensive evaluation method was proposed based on Analytic Hierarchy Process (AHP). Four typical AEB control models were compared, which verified that the proposed method can timely trigger braking to avoid collisions in different braking scenarios, while reducing driving discomfort caused by premature braking.
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为提高车辆自动紧急制动(AEB)系统的避撞性能,提出了一种考虑前车制动意图的AEB策略及其测试评价方法。通过搭建“PreScan+Simulink+驾驶模拟器”联合仿真平台采集驾驶人制动数据,基于K-均值(K-Means)聚类方法对制动意图进行分类,采用滑动时间窗口提取了意图识别模型训练数据集;通过双层隐马尔可夫模型识别前车制动意图,主车根据不同制动意图计算临界安全距离阈值并制定避撞控制策略;建立PreScan+Simulink虚拟仿真测试环境,提出了基于层次分析法的AEB策略综合评价方法,通过与4种典型AEB控制模型进行对比,验证了所提出方法在不同制动程度场景下均可及时触发制动以避免碰撞,同时可减少过早制动造成的驾驶不适感。
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2019(14): 42-46., articleTitle=Test and Evaluation Method Research on Automatic Emergency Collision Avoidance of Autonomous Vehicles, refAbstract=null)], funds=[Fund(id=1211374713289437897, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1211009533007237168, awardId=2021YFB2501200, language=CN, fundingSource=*国家重点研发计划项目(2021YFB2501200), fundOrder=null, country=null), Fund(id=1211374713348158154, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1211009533007237168, awardId=2022GY-300, language=CN, fundingSource=陕西省重点研发计划项目(2022GY-300), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1211374708025586303, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1211009533007237168, xref=null, ext=[AuthorCompanyExt(id=1211374708029780608, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1211009533007237168, companyId=1211374708025586303, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=Chang’an University, Xi’an 710018), AuthorCompanyExt(id=1211374708038169217, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1211009533007237168, companyId=1211374708025586303, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=长安大学,西安 710018)])], figs=[ArticleFig(id=1211374711058068135, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1211009533007237168, language=EN, label=null, caption=null, figureFileSmall=j2csX4A1CNfu9VhVYy/uvw==, figureFileBig=I7NwTG3LNOt3w23q3wL3dg==, tableContent=null), ArticleFig(id=1211374711116788393, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1211009533007237168, language=CN, label=图1, caption=
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K-均值算法分类结果, figureFileSmall=4gTLF6Jmrwi4pE7hJA6mUg==, figureFileBig=mNIHqF2RZc34biErjtyD/Q==, tableContent=null), ArticleFig(id=1211374711322309291, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1211009533007237168, language=EN, label=null, caption=null, figureFileSmall=8upExTMdbTsdfYk5r5yc7g==, figureFileBig=mCaJJ2q9z1eYBnKUGvodLw==, tableContent=null), ArticleFig(id=1211374711381029548, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1211009533007237168, language=CN, label=图3, caption=
滑动时间窗口原理, figureFileSmall=8upExTMdbTsdfYk5r5yc7g==, figureFileBig=mCaJJ2q9z1eYBnKUGvodLw==, tableContent=null), ArticleFig(id=1211374711439749805, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1211009533007237168, language=EN, label=null, caption=null, figureFileSmall=V06DT9+c0R+LvYZlkHQCVg==, figureFileBig=BS2RwS1lcljb0yJZMPeFtg==, tableContent=null), ArticleFig(id=1211374711498470062, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1211009533007237168, language=CN, label=图4, caption=
双层HMM模型工作原理, figureFileSmall=V06DT9+c0R+LvYZlkHQCVg==, figureFileBig=BS2RwS1lcljb0yJZMPeFtg==, tableContent=null), ArticleFig(id=1211374711552996015, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1211009533007237168, language=EN, label=null, caption=null, figureFileSmall=vtVic4QXAJSmJetQOpJnTw==, figureFileBig=N2ETnLqnHxbbobUbx6ed1g==, tableContent=null), ArticleFig(id=1211374711620104880, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1211009533007237168, language=CN, label=图5, caption=
双层HMM识别结果, figureFileSmall=vtVic4QXAJSmJetQOpJnTw==, figureFileBig=N2ETnLqnHxbbobUbx6ed1g==, tableContent=null), ArticleFig(id=1211374711678825137, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1211009533007237168, language=EN, label=null, caption=null, figureFileSmall=IqBIStcg9EIMLESmS7Zb+A==, figureFileBig=9fBJ+dTNAE439kTvoTdJ+w==, tableContent=null), ArticleFig(id=1211374711733351090, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1211009533007237168, language=CN, label=图6, caption=
车辆避撞过程分析, figureFileSmall=IqBIStcg9EIMLESmS7Zb+A==, figureFileBig=9fBJ+dTNAE439kTvoTdJ+w==, tableContent=null), ArticleFig(id=1211374711787877043, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1211009533007237168, language=EN, label=null, caption=null, figureFileSmall=fym/dKpFqKFIwQQG+0QRRg==, figureFileBig=XuwbtaDQ3VDAcvXaOzq2HQ==, tableContent=null), ArticleFig(id=1211374711838208692, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1211009533007237168, language=CN, label=图7, caption=
AEB控制策略逻辑, figureFileSmall=fym/dKpFqKFIwQQG+0QRRg==, figureFileBig=XuwbtaDQ3VDAcvXaOzq2HQ==, tableContent=null), ArticleFig(id=1211374711896928949, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1211009533007237168, language=EN, label=null, caption=null, figureFileSmall=fyH6BzGYbOzMnMF5HuaYCg==, figureFileBig=g9D4M8ludZnC+OYLPMAvDg==, tableContent=null), ArticleFig(id=1211374712043729590, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1211009533007237168, language=CN, label=图8, caption=
三维仿真环境, figureFileSmall=fyH6BzGYbOzMnMF5HuaYCg==, figureFileBig=g9D4M8ludZnC+OYLPMAvDg==, tableContent=null), ArticleFig(id=1211374712152781495, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1211009533007237168, language=EN, label=null, caption=null, figureFileSmall=0Y1LxzAoMA5pL5pKS7qOtg==, figureFileBig=lJTn6ET1mrWyWVFlLVdDVA==, tableContent=null), ArticleFig(id=1211374712211501752, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1211009533007237168, language=CN, label=图9, caption=
模型对比结果, figureFileSmall=0Y1LxzAoMA5pL5pKS7qOtg==, figureFileBig=lJTn6ET1mrWyWVFlLVdDVA==, tableContent=null), ArticleFig(id=1211374712266027705, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1211009533007237168, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 数据类型 | 数据数量/条 |
| 参数组合1 | 参数组合2 | 参数组合3 |
| 轻微制动 | 1 600 | 3 200 | 4 000 |
| 正常制动 | 1 600 | 3 200 | 4 000 |
| 紧急制动 | 1 600 | 3 200 | 4 000 |
| 训练集 | 3 840 | 7 680 | 9 600 |
| 测试集 | 960 | 1 920 | 2 400 |
), ArticleFig(id=1211374712337330875, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1211009533007237168, language=CN, label=表1, caption=
基于不同参数组合的制动意图数据选取
, figureFileSmall=null, figureFileBig=null, tableContent=
| 数据类型 | 数据数量/条 |
| 参数组合1 | 参数组合2 | 参数组合3 |
| 轻微制动 | 1 600 | 3 200 | 4 000 |
| 正常制动 | 1 600 | 3 200 | 4 000 |
| 紧急制动 | 1 600 | 3 200 | 4 000 |
| 训练集 | 3 840 | 7 680 | 9 600 |
| 测试集 | 960 | 1 920 | 2 400 |
), ArticleFig(id=1211374712396051132, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1211009533007237168, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 数据类型 | 制动踏板压力/MPa | 压力变化率/% | 车速/km·h-1 |
| 分级阈值 | 0 | 23.1 | 0 | 0 | 26.6 |
| 10.9 | 24.4 | 2 | 1.0 | 30.2 |
| 14.3 | 26.6 | 3 | 2.0 | 33.6 |
| 15.9 | 33.8 | 5 | 3.5 | 37.0 |
| 17.2 | 46.0 | 11 | 5.7 | 40.1 |
| 18.4 | 60.1 | 20 | 8.7 | 43.1 |
| 19.4 | 75.0 | 47 | 12.2 | 46.6 |
| 20.1 | 103.0 | 141 | 15.8 | 58.2 |
| 21.0 | 133.0 | 200 | 19.4 | 70.8 |
| 22.1 | 136.0 | 500 | 23.0 | 80.0 |
), ArticleFig(id=1211374712479937213, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1211009533007237168, language=CN, label=表2, caption=
数据分级量化结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 数据类型 | 制动踏板压力/MPa | 压力变化率/% | 车速/km·h-1 |
| 分级阈值 | 0 | 23.1 | 0 | 0 | 26.6 |
| 10.9 | 24.4 | 2 | 1.0 | 30.2 |
| 14.3 | 26.6 | 3 | 2.0 | 33.6 |
| 15.9 | 33.8 | 5 | 3.5 | 37.0 |
| 17.2 | 46.0 | 11 | 5.7 | 40.1 |
| 18.4 | 60.1 | 20 | 8.7 | 43.1 |
| 19.4 | 75.0 | 47 | 12.2 | 46.6 |
| 20.1 | 103.0 | 141 | 15.8 | 58.2 |
| 21.0 | 133.0 | 200 | 19.4 | 70.8 |
| 22.1 | 136.0 | 500 | 23.0 | 80.0 |
), ArticleFig(id=1211374712542851774, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1211009533007237168, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 符号 | 参数定义 | 制动行为HMM | 制动意图HMM |
| Q | 隐藏状态 | {q1,q2,q3,q4} | {q1,q2,q3} |
| V1 | 数据1观测值集合 | | |
| V2 | 数据2观测值集合 | | |
| I | 隐藏状态序列 | {i1,i2,i3,…,is} | {i1,i2,i3,…,is} |
| O1 | 观测数据1序列 | | |
| O2 | 观测数据2序列 | | |
| A | 状态转移概率 | [aij]4×4 | [aij]3×3 |
| B1 | 数据1观测概率 | | |
| B2 | 数据2观测概率 | | |
| Π | 初始状态概率 | (π1,π2,π3,π4) | (π1,π2,π3) |
), ArticleFig(id=1211374712618349247, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1211009533007237168, language=CN, label=表3, caption=
双层HMM参数定义
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| 符号 | 参数定义 | 制动行为HMM | 制动意图HMM |
| Q | 隐藏状态 | {q1,q2,q3,q4} | {q1,q2,q3} |
| V1 | 数据1观测值集合 | | |
| V2 | 数据2观测值集合 | | |
| I | 隐藏状态序列 | {i1,i2,i3,…,is} | {i1,i2,i3,…,is} |
| O1 | 观测数据1序列 | | |
| O2 | 观测数据2序列 | | |
| A | 状态转移概率 | [aij]4×4 | [aij]3×3 |
| B1 | 数据1观测概率 | | |
| B2 | 数据2观测概率 | | |
| Π | 初始状态概率 | (π1,π2,π3,π4) | (π1,π2,π3) |
), ArticleFig(id=1211374712698041024, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1211009533007237168, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 场景参数 | 参数值 | 场景参数 | 参数值 |
| 滚动摩擦因数 | 0.01 | 阻力系数 | 0.27 |
| 车辆质量/t | 0.9 | 迎风面积/m2 | 2.33 |
| 最大减速度/g | 0.7 | 最大制动压力/MPa | 15 |
| 轴距/m | 2.94 | 重力加速度/m·s-2 | 9.81 |
| 空气密度/kg·m-3 | 1.28 | 空气湿度/% | 10 |
| 温度/℃ | 20 | 气压/kPa | 101.33 |
| 仿真频率/Hz | 25 | 计算频率/Hz | 200 |
), ArticleFig(id=1211374712756761281, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1211009533007237168, language=CN, label=表4, caption=
场景参数设置
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| 场景参数 | 参数值 | 场景参数 | 参数值 |
| 滚动摩擦因数 | 0.01 | 阻力系数 | 0.27 |
| 车辆质量/t | 0.9 | 迎风面积/m2 | 2.33 |
| 最大减速度/g | 0.7 | 最大制动压力/MPa | 15 |
| 轴距/m | 2.94 | 重力加速度/m·s-2 | 9.81 |
| 空气密度/kg·m-3 | 1.28 | 空气湿度/% | 10 |
| 温度/℃ | 20 | 气压/kPa | 101.33 |
| 仿真频率/Hz | 25 | 计算频率/Hz | 200 |
), ArticleFig(id=1211374712828064451, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1211009533007237168, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 制动意图 | 轻微制动 | 正常制动 | 紧急制动 |
| 前车减速度/m·s-2 | 1 | 4 | 7 |
| 前车速度/km·h-1 | 10~50 | 10~70 | 10~70 |
| 主车车速/km·h-1 | 20~100 | 20~100 | 20~100 |
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测试场景条件设置
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| 制动意图 | 轻微制动 | 正常制动 | 紧急制动 |
| 前车减速度/m·s-2 | 1 | 4 | 7 |
| 前车速度/km·h-1 | 10~50 | 10~70 | 10~70 |
| 主车车速/km·h-1 | 20~100 | 20~100 | 20~100 |
), ArticleFig(id=1211374712970670789, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1211009533007237168, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 评价指标 | 是否碰撞 | 最小车间距 | 停车相对距离 | 碰撞相对速度 | 速度降低比例 | TTC | 系统介入相对距离 |
| 权重 | 0.35 | 0.23 | 0.23 | 0.09 | 0.06 | 0.02 | 0.02 |
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7种评价指标权重
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| 评价指标 | 是否碰撞 | 最小车间距 | 停车相对距离 | 碰撞相对速度 | 速度降低比例 | TTC | 系统介入相对距离 |
| 权重 | 0.35 | 0.23 | 0.23 | 0.09 | 0.06 | 0.02 | 0.02 |
), ArticleFig(id=1211374713100694215, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1211009533007237168, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 制动意图 | 马自达 | 本田 | 伯克利 | TTC | 本文模型 |
| 轻微制动 | 54.42 | 61.19 | 56.71 | 22.99 | 82.95 |
| 正常制动 | 56.07 | 67.81 | 67.53 | 23.81 | 82.34 |
| 紧急制动 | 62.05 | 47.22 | 44.36 | 23.35 | 79.27 |
| 平均得分 | 57.52 | 58.74 | 56.20 | 23.38 | 81.85 |
), ArticleFig(id=1211374713167803080, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1211009533007237168, language=CN, label=表7, caption=
5种模型评价得分情况
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| 制动意图 | 马自达 | 本田 | 伯克利 | TTC | 本文模型 |
| 轻微制动 | 54.42 | 61.19 | 56.71 | 22.99 | 82.95 |
| 正常制动 | 56.07 | 67.81 | 67.53 | 23.81 | 82.34 |
| 紧急制动 | 62.05 | 47.22 | 44.36 | 23.35 | 79.27 |
| 平均得分 | 57.52 | 58.74 | 56.20 | 23.38 | 81.85 |
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