以一种新型的单电机、双离合器式重度混合动力轿车为对象，确定工作模式切换的边界条件及相应动力源需求扭矩，为满足工作模式切换过程的动力性与平顺性要求，制定了限力矩离合器接合模糊控制策略与各工作模式切换过程的扭矩协调控制策略。建立了整车仿真模型与相应控制策略模型，进行了各模式切换过程的计算机仿真分析。研究结果表明：该系统能迅速稳定地完成行进中电机起动发动机过程，采用所制定的扭矩协调控制策略能有效降低各模式切换过程的冲击度，提高汽车行驶的平顺性。
Abstract
A full hybrid electric vehicle with an electric motor and two clutches was used to determine the boundary conditions of the operation mode-switch and the torque requirement of engine. In order to meet the power and ride comfort, the coordinated torque control strategy and fuzzy control of limiting torque clutch were developed. The simulation model and control strategy model were established and the processes of mode switching were simulated for analysis. The results show that this system can rapidly and stably make the motor to start the engine and the control strategy can reduce the torque surge and improve the ride comfort during mode-switch process.
关键词
汽车工程 /
混合动力汽车 /
计算机仿真 /
扭矩协调控制 /
平顺性
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Key words
automotive engineering /
hybrid electric vehicle /
computer simulation /
coordinated torque control /
ride comfort
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中图分类号：
U469.7
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参考文献
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脚注
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基金
“十二五”国家科技支撑计划项目（2013BAG12B01）；重庆市基础与前沿研究计划杰青项目（cstc2013jcyjjq60002）； 机械传动国家重点实验室自主研究项目
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