【作者】 孙存娟；

【导师】 王旭东；

【作者基本信息】 哈尔滨理工大学 ， 电力电子与电力传动， 2009， 硕士

【摘要】 混合动力汽车采用不同能量转换装置作为动力源,在节能和减少排放方面具有传统汽车无法比拟的优势。多能源动力总成控制系统(Multi-powerControl Unite for Hybrid Electric Vehicle,HCU)是整个混合动力汽车的核心,它直接决定汽车的运行性能。论文在详细分析混合动力电动汽车原理、主要总成部件的功能和参数,归纳出HCU输入输出信号的类型与范围等基础上,提出了HCU硬件设计方案和软件设计方案。HCU的硬件设计主要以实现控制器高性能、高可靠性为目标,采用模块化设计思想,将HCU的硬件分为微处理器模块、电源模块、输入信号调节模块、输出信号执行模块、PWM驱动模块和CAN通信模块。HCU软件设计是在保证按照驾驶员意图实现动力输出调节的前提下,以整车燃油经济性能和排放性能最佳为控制目标,设计了电力辅助控制策略。软件采用了模块化设计思想,主要分为整车工况确定子程序、转矩需求子程序、转矩分配子程序、数据查表子程序和状态确定子程序。最后,详细分析了HCU的工作环境及可能的干扰源,并有针对地提出了抗干扰措施。在实验台架上对HCU系统做了三综合试验,保证控制系统能在比较恶劣的环境下正常工作,论证了HCU系统设计方案的可行性。更多还原

【Abstract】 Hybrid electric vehicles (HEV), employing different energy convert devises, have incomparable advantages of traditional internal combustion vehicles in feul economy and emission. Multi-energy powertrain control system is the core of HEVs, whether which works normally can directly determine the proper function of the whole vehicles.First the author analyzes function and the value of parameters of each powertrain of HEV in detail, and sums up all input or signals of HCU. On the base of analysis, author brings forward hardware design plan and software design. HCU hardware design adopts module design method is divided in CPU module, input signal conditioning module, the impletementation of output signal module, PWM drive module and CAN communication module, as the goal of high-performance and high reliability to the controller design. Best feul economy and emission is control aim of HCU software design, then the author decides to adopt Electric Assist Control Strategy. HCU software design adopts module design method and is mainly divided into subprogram to subprogram to determine the vehicle state, subprogram to computer torque requirement, subprogram to distribute torque, subprogram to implement data check operation, subprogram to determine engine and electromotor operation state.In the last chapter, the author analyzes analyses HCU work environment and possible anti-jamming sources in detail and bring forward HCU anti-jamming measures. Then I do three comprehensive tests on the experimental bench to ensure that control system can work normally in poor environment.更多还原