为实现国产自主可控,基于国产CPU和麒麟操作系统,采用Qt元语言(qt meta language,QML)和图形处理器(graphics processing unit,GPU)编程的模式设计一种跨平台的实时显示软件。详细阐述基于QML的软件架构设计,并对软件设计中的QML、C++及...为实现国产自主可控,基于国产CPU和麒麟操作系统,采用Qt元语言(qt meta language,QML)和图形处理器(graphics processing unit,GPU)编程的模式设计一种跨平台的实时显示软件。详细阐述基于QML的软件架构设计,并对软件设计中的QML、C++及GPU的通信模式、QML下CPU+GPU编程实时显示性能优化方法以及QML显示控件设计等关键技术进行说明,验证其应用。结果证明:该模型具有可靠、稳定、高效和跨平台等特点,满足实时显示应用要求。展开更多
In order to solve the problem of weak power performance of vehicle equipped with continuously variable transmission(CVT) system working under transient operating conditions, a new CVT equipped with planetary gear mech...In order to solve the problem of weak power performance of vehicle equipped with continuously variable transmission(CVT) system working under transient operating conditions, a new CVT equipped with planetary gear mechanism and flywheel was researched, a design method of transmission parameter optimization was proposed, and the comprehensive matching control strategy was established for the new transmission system. Fuzzy controllers for throttle opening and CVT speed ratio were designed, and power performance and fuel economy of both vehicles respectively equipped with conventional CVT system and new transmission system wrere compared and analyzed by simulation. The results show that power performance and fuel economy of the vehicle equipped with new transmission system are better than that equipped with conventional CVT, thus the rationality of the parameter design method and control algorithm are verified.展开更多
文摘为实现国产自主可控,基于国产CPU和麒麟操作系统,采用Qt元语言(qt meta language,QML)和图形处理器(graphics processing unit,GPU)编程的模式设计一种跨平台的实时显示软件。详细阐述基于QML的软件架构设计,并对软件设计中的QML、C++及GPU的通信模式、QML下CPU+GPU编程实时显示性能优化方法以及QML显示控件设计等关键技术进行说明,验证其应用。结果证明:该模型具有可靠、稳定、高效和跨平台等特点,满足实时显示应用要求。
基金Project(2011BA3019)supported by the Chongqing Natural Science Foundation,China
文摘In order to solve the problem of weak power performance of vehicle equipped with continuously variable transmission(CVT) system working under transient operating conditions, a new CVT equipped with planetary gear mechanism and flywheel was researched, a design method of transmission parameter optimization was proposed, and the comprehensive matching control strategy was established for the new transmission system. Fuzzy controllers for throttle opening and CVT speed ratio were designed, and power performance and fuel economy of both vehicles respectively equipped with conventional CVT system and new transmission system wrere compared and analyzed by simulation. The results show that power performance and fuel economy of the vehicle equipped with new transmission system are better than that equipped with conventional CVT, thus the rationality of the parameter design method and control algorithm are verified.
