Article(id=1204386108776882843, tenantId=1146029695717560320, journalId=1189621681917173762, issueId=1204386108021911888, articleNumber=null, orderNo=null, doi=10.19620/j.cnki.1000-3703.20220752, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=null, receivedDateStr=null, revisedDate=1668614400000, revisedDateStr=2022-11-17, acceptedDate=null, acceptedDateStr=null, onlineDate=1765077624743, onlineDateStr=2025-12-07, pubDate=1695484800000, pubDateStr=2023-09-24, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1765077624743, onlineIssueDateStr=2025-12-07, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1765077624743, creator=13701087609, updateTime=1765077624743, updator=13701087609, issue=Issue{id=1204386108021911888, tenantId=1146029695717560320, journalId=1189621681917173762, year='2023', volume='', issue='9', 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=1765077624563, creator=13701087609, updateTime=1765079263705, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1204392983144673781, tenantId=1146029695717560320, journalId=1189621681917173762, issueId=1204386108021911888, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1204392983144673782, tenantId=1146029695717560320, journalId=1189621681917173762, issueId=1204386108021911888, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=18, endPage=26, ext={EN=ArticleExt(id=1204386108999180957, articleId=1204386108776882843, tenantId=1146029695717560320, journalId=1189621681917173762, language=EN, title=Rule-Based Constrained Deep Reinforcement Learning for Intelligent Vehicle Driving Decisions in Highway Scenarios, columnId=null, journalTitle=Automobile Technology, columnName=null, runingTitle=null, highlight=null, articleAbstract=
For the problems of strong randomness and low training efficiency in intelligent vehicle training under reinforcement learning algorithm, this paper proposed a driving decision framework of intelligent vehicle based on rule constraints and Deep Q Network (DQN) algorithm. The introduced rules were divided into hard constraints related to lane change and soft constraints related to lane keeping, which were implemented by Action Detection Module and reward function respectively. At the same time, the network structure of DQN was improved by combining Dueling DQN and Double DQN, N-Step Bootstrapping learning was introduced to accelerate the training efficiency of DQN. Finally, the effectiveness of the model was verified by comprehensive comparison with the original DQN algorithm in the highway scene of Highway-env platform. The improved algorithm improved the task success rate and training efficiency of intelligent vehicles.
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针对强化学习算法下智能车辆训练中动作选择过程随机性强、训练效率低等问题,提出了基于规则约束和深度Q网络(DQN)算法的智能车辆行驶决策框架,将引入的规则分为与换道相关的硬约束和与车道保持相关的软约束,分别通过动作检测模块(Action Detection Module)与奖励函数来实现。同时结合竞争深度Q网络(Dueling DQN)和双重深度Q网络(Double DQN)对DQN的网络结构进行改进,并引入N步自举(N-Step Bootstrapping)学习提高DQN的训练效率,最后在Highway-env平台高速路场景下与原始DQN算法进行综合对比验证模型的有效性,改进后的算法提高了智能车辆任务成功率和训练效率。
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不同算法在原奖励函数下的成功率, figureFileSmall=TNYM5lz4x0NtXzMhGGJ0TA==, figureFileBig=isam/5CjsxdInz7GQV/BBw==, tableContent=null), ArticleFig(id=1204452631226851505, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1204386108776882843, language=EN, label=null, caption=null, figureFileSmall=7xxJ9gutXCbNOdG+5mUjAw==, figureFileBig=mCT2E92n6ej13KFrxK4rWQ==, tableContent=null), ArticleFig(id=1204452631348486335, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1204386108776882843, language=CN, label=图5, caption=
不同算法在原奖励函数下的单回合平均车速, figureFileSmall=7xxJ9gutXCbNOdG+5mUjAw==, figureFileBig=mCT2E92n6ej13KFrxK4rWQ==, tableContent=null), ArticleFig(id=1204452631499481289, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1204386108776882843, language=EN, label=null, caption=null, figureFileSmall=NPSDx0G6QvpU+TD+DwLMkA==, figureFileBig=hBaa0Bds2mHlkiu9svypFg==, tableContent=null), ArticleFig(id=1204452631591755995, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1204386108776882843, language=CN, label=图6, caption=
不同算法在原奖励函数下的单回合平均行驶距离, figureFileSmall=NPSDx0G6QvpU+TD+DwLMkA==, figureFileBig=hBaa0Bds2mHlkiu9svypFg==, tableContent=null), ArticleFig(id=1204452631700807912, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1204386108776882843, language=EN, label=null, caption=null, figureFileSmall=mM8hUuQNOEOFJj4v/9n02A==, figureFileBig=0PMfnjlGb7dUDJlXlAsKlA==, tableContent=null), ArticleFig(id=1204452631830831348, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1204386108776882843, language=CN, label=图7, caption=
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规则约束框架下ND3QN算法行为决策, figureFileSmall=qke3n6jeSR14kpUSWpxMdw==, figureFileBig=0FKk/sdt/rfGsvrPv9XpeA==, tableContent=null), ArticleFig(id=1204452632610971977, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1204386108776882843, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 序号 | 前车车距 | 换道空间 | DQN输出 | 模块输出 |
| 1 | | 右侧无空间 | 右转 | 保持 |
| 2 | | 左侧无空间 | 左转 | 保持 |
| 3 | <SVTH,>DMS | 左侧存在空间 | 直行或加速 | 左转 |
| 4 | <SVTH,>DMS | 右侧存在空间 | 直行或加速 | 右转 |
| 5 | <DMS | | 加速 | 保持 |
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动作检测模块的规则
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| 序号 | 前车车距 | 换道空间 | DQN输出 | 模块输出 |
| 1 | | 右侧无空间 | 右转 | 保持 |
| 2 | | 左侧无空间 | 左转 | 保持 |
| 3 | <SVTH,>DMS | 左侧存在空间 | 直行或加速 | 左转 |
| 4 | <SVTH,>DMS | 右侧存在空间 | 直行或加速 | 右转 |
| 5 | <DMS | | 加速 | 保持 |
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| 名称 | 数值 | 名称 | 数值 |
| 车道数量/条 | 4 | 车辆速度/m·s-1 | [20,30] |
| 车道长度/m | 4 000 | 决策频率/Hz | 1 |
| 车辆宽度/m | 2 | 每回合持续时间/s | 100 |
| 车辆长度/m | 5 | 车辆数量/辆 | 30 |
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高速路环境的各参数
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| 名称 | 数值 | 名称 | 数值 |
| 车道数量/条 | 4 | 车辆速度/m·s-1 | [20,30] |
| 车道长度/m | 4 000 | 决策频率/Hz | 1 |
| 车辆宽度/m | 2 | 每回合持续时间/s | 100 |
| 车辆长度/m | 5 | 车辆数量/辆 | 30 |
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| 超参数 | 数值 | 超参数 | 数值 |
| 学习率 | 0.000 5 | 折扣系数 | 0.9 |
| ε-greedy | 0.95 | 批尺寸 | 64 |
| 经验池大小 | 100 000 | | |
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DQN算法超参数设置
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| 超参数 | 数值 | 超参数 | 数值 |
| 学习率 | 0.000 5 | 折扣系数 | 0.9 |
| ε-greedy | 0.95 | 批尺寸 | 64 |
| 经验池大小 | 100 000 | | |
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| 对比项 | 原奖励函数 | 修改后奖励函数 |
| 平均车速/m·s-1 | 27.83 | 26.80 |
| 平均行驶距离/m | 812.56 | 1 641.77 |
| 碰撞次数/次 | 11 576 | 8 020 |
| 总成功率/% | 3.53 | 33.16 |
| 最后1 000回合成功率/% | 6.80 | 44.20 |
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不同奖励函数测试结果
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| 对比项 | 原奖励函数 | 修改后奖励函数 |
| 平均车速/m·s-1 | 27.83 | 26.80 |
| 平均行驶距离/m | 812.56 | 1 641.77 |
| 碰撞次数/次 | 11 576 | 8 020 |
| 总成功率/% | 3.53 | 33.16 |
| 最后1 000回合成功率/% | 6.80 | 44.20 |
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| 对比项 | DQN | D3QN | ND3QN |
| 平均车速/m·s-1 | 27.83 | 27.81 | 26.60 |
| 平均行驶距离/m | 812.56 | 1 178.41 | 1 230.38 |
| 平均单回合回报值 | 26.94 | 38.33 | 40.59 |
| 碰撞次数/次 | 11 576 | 10 571 | 10 147 |
| 总成功率/% | 3.53 | 11.91 | 15.44 |
| 最后1 000回合成功率/% | 6.80 | 16.50 | 14.20 |
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不同算法在原奖励函数下测试结果
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| 对比项 | DQN | D3QN | ND3QN |
| 平均车速/m·s-1 | 27.83 | 27.81 | 26.60 |
| 平均行驶距离/m | 812.56 | 1 178.41 | 1 230.38 |
| 平均单回合回报值 | 26.94 | 38.33 | 40.59 |
| 碰撞次数/次 | 11 576 | 10 571 | 10 147 |
| 总成功率/% | 3.53 | 11.91 | 15.44 |
| 最后1 000回合成功率/% | 6.80 | 16.50 | 14.20 |
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| 对比项 | ADQN | R+DQN | RCDQN |
| 平均车速/m·s-1 | 27.88 | 26.80 | 26.12 |
| 平均行驶距离/m | 1 204.38 | 1 641.77 | 2 230.37 |
| 碰撞次数/次 | 10 669 | 8 020 | 3 321 |
| 总成功率/% | 11.09 | 33.16 | 72.32 |
| 最后1 000回合成功率% | 8.20 | 44.20 | 79.40 |
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DQN算法引入动作检测模块与新奖励函数测试结果
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| 对比项 | ADQN | R+DQN | RCDQN |
| 平均车速/m·s-1 | 27.88 | 26.80 | 26.12 |
| 平均行驶距离/m | 1 204.38 | 1 641.77 | 2 230.37 |
| 碰撞次数/次 | 10 669 | 8 020 | 3 321 |
| 总成功率/% | 11.09 | 33.16 | 72.32 |
| 最后1 000回合成功率% | 8.20 | 44.20 | 79.40 |
), ArticleFig(id=1204452633990898127, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1204386108776882843, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 对比项 | RCDQN | RCD3QN | RCND3QN |
| 平均车速/m·s-1 | 26.12 | 25.35 | 25.01 |
| 平均行驶距离/m | 2 230.37 | 2 266.46 | 2 344.53 |
| 平均回报值 | 14.40 | 14.45 | 17.31 |
| 碰撞次数/次 | 3 321 | 1 949 | 1 139 |
| 总成功率/% | 72.32 | 83.76 | 90.51 |
| 最后1 000回合成功率/% | 79.40 | 83.10 | 91.48 |
), ArticleFig(id=1204452634083172826, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1204386108776882843, language=CN, label=表7, caption=
引入规则约束框架后各算法测试结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 对比项 | RCDQN | RCD3QN | RCND3QN |
| 平均车速/m·s-1 | 26.12 | 25.35 | 25.01 |
| 平均行驶距离/m | 2 230.37 | 2 266.46 | 2 344.53 |
| 平均回报值 | 14.40 | 14.45 | 17.31 |
| 碰撞次数/次 | 3 321 | 1 949 | 1 139 |
| 总成功率/% | 72.32 | 83.76 | 90.51 |
| 最后1 000回合成功率/% | 79.40 | 83.10 | 91.48 |
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