| 基于全轮纵向力优化分配的4WD车辆直接横摆力矩控制 4 |
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| 引用本文： | 邹广才,罗禹贡,李克强.基于全轮纵向力优化分配的4WD车辆直接横摆力矩控制 4[J].农业机械学报,2009,40(5):1-6. |
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| 作者姓名： | 邹广才 罗禹贡 李克强 |
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| 作者单位： | 1. 北京汽车研究总院,北京,100021
2. 清华大学汽车安全与节能国家重点实验室,北京,100084 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 为了充分利用四轮独立驱动(4WD)与直接横摆力矩控制(DYC)各自的优势,提出了基于全轮纵向力优化分配的4WD车辆DYC系统方案.利用改进的2DOF车辆模型制定DYC稳定性控制目标,设计基于最优动态滑模的"前馈+反馈"DYC控制器.建立全轮纵向力优化分配模式,结合HSRI轮胎模型设计了降低整车路面附着负荷的目标函数,并通过约束优化得出全轮纵向力分配值.研究表明,全轮纵向力优化分配可提高整车路面附着余量,进一步提升了DYC系统的控制性能.
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| 关 键 词： | 车辆 直接横摆力矩控制 四轮独立驱动 全轮纵向力优化分配 |
DYC Based on Tire Longitudinal Forces Optimization Distribution |
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| Zou Guangcai,Luo Yugong,Li Keqiang.DYC Based on Tire Longitudinal Forces Optimization Distribution[J].Transactions of the Chinese Society of Agricultural Machinery,2009,40(5):1-6. |
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| Authors: | Zou Guangcai Luo Yugong Li Keqiang |
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| Institution: | 1.Beijing Automotive Technology Center;Beijing 100021;China2.State Key Laboratory of Automotive Safety and Energy;Tsinghua University;Beijing 100084;China |
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| Abstract: | A new 4WD vehicle DYC system based on the tire longitudinal forces optimization distribution was proposed to combine the advantages of DYC and the independent four-wheel-drive chassis.The modified 2DOF vehicle model was utilized to obtain the DYC target for vehicle stability.The "feedforward + feedback" DYC controller was designed with the optimal dynamical sliding mode.The tire longitudinal forces optimization distribution mode was established with the stability index combining HSRI tire model to increase ... |
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| Keywords: | Vehicle Direct yaw moment control Four wheel independent drive Tire longitudinal forces optimization distribution |
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