however, intel's main problem is that companies take a long time to switch strategies in the chip business 然而,英特尔的主要问题在于公司花费了长时间在芯片事业上战略转型。
to deduce the coupling degree, the system was built in a three-layer architecture : mvc architecture which includes model layer, control layer, view layer; the classes were consummated and the relationship was also defined to build the class store . the mission switch strategy was analyzed 系统分层采用mvc结构,将系统分为界面层、控制层、实体层,以降低各部分之间的耦合度;并完善系统的类,确定了它们之间的关系,建立了类库;分析了系统的任务调度策略和组件,建立了系统的分析模型。
based on the investigation with several voltage control methods, such as venturini method, instantaneous double-voltage synthesis method and space vector modulation method ( svm ), three new control strategies are put forward . firstly, a time-varying modulation coefficient svm method is proposed to improve mc's anti-disturbance performance under the asymmetry input voltage . secondly, a 5-state switching strategy is presented for mc controlled by the svm method, which reduces the commutation number and switching losses remarkably 在分析了venturini控制法、瞬时双电压法、空间矢量法等电压控制方法的基础上,提出了在非对称输入条件下矩阵变换器空间矢量法的时变调制比改进控制策略,提高了变换器的抗干扰性能;对空间矢量法的开关策略进行了研究,提出了新型5状态开关策略,在保证其他性能不受影响的条件下,减少了变换器的换流次数和开关损耗;提出了一种矩阵变换器单电压合成的新方法,它不仅使得变换器的控制简单,计算量减少,而且使得开关损耗达到最少。
this strategy effectively solves the power distribution between the apu and batteries during the drive of the heb . the power control model and multi-torque switching strategy of the driving motors control the charging-recharging current of the batteries within a wide range, which contribute to the improvement of the efficiency 该策略很好的解决了车辆行驶时辅助动力系统与蓄电池组之间的功率分配,并且驱动电动机采用功率控制模式以及多级动力输出切换策略,有效的控制了蓄电池的充放电电流,从而提高了整车效率。