Fuel-cell hybrid electric vehicles have the advantages of zero pollution and high efficiency are extensively applied in commerce. An energy management strategy (EMS) directly impacts fuel consumption performance. Moreover, model prediction control (MPC) is synchronous has been a research hotspot EMS recent years. The existing MPC’s low-speed accuracy, which results considerable instability allo...

In this final work, “whose objective is: To analyze the development of post-sale service as a strategy for growth in commercial companies motorcycle sector. to managers different department and survey customers, using with 10 questions. The answers were used identify aftersales services by benefits implementing them, disadvantage those that are exposed do not use finally find out await customer...

In order to solve the problem where traditional electric power steering system (EPS) provides too much assist torque under low load and adhesion coefficient, which damages driver’s road feeling affects driving safety, this paper designs a multi-map EPS control strategy. First, based on change of resistance different front axle loads coefficients, characteristics considering coefficient were des...

The efficiency of commercial automobiles and wheeled military vehicles mainly depends on the choice maintenance (M) current repair (CR) concept. In paper difficulties adapting planning strategies to structural characteristics modern transport facilities are pointed out. advantages using random strategy for based stochastic nature failures malfunctions substantiated. Considering as values identi...

this study intended to develop a model describing speaking strategies for efl learners by taking into account the effects of learners’ gender and proficiency on the application of strategies. accordingly, this study was planned to have two main analyses, namely qualitative and quantitative. in this respect, 30 efl learners' viewpoints were sought, and then, based on the elicited responses, a 21...