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OPTIMAL TORQUE CONTROL STRATEGY FOR PARALLEL HYBRID ELECTRIC VEHICLE WITH AUTOMATIC MECHANICAL TRANSMISSION 总被引:3,自引:1,他引:2
GU Yanchun YIN Chengliang ZHANG Jianwu School of Mechanical Engineering Shanghai Jiaotong University Shanghai China 《机械工程学报(英文版)》2007,20(1):16-20
In parallel hybrid electrical vehicle (PHEV) equipped with automatic mechanical transmission (AMT), the driving smoothness and the clutch abrasion are the primary considerations for powertrain control during gearshift and clutch operation. To improve these performance indexes of PHEV, a coordinated control system is proposed through the analyzing of HEV powertrain dynamic characteristics. Using the method of minimum principle, the input torque of transmission is optimized to improve the driving smoothness of vehicle. Using the methods of fuzzy logic and fuzzy-PID, the engaging speed of clutch and the throttle opening of engine are manipulated to ensure the smoothness of clutch engagement and reduce the abrasion of clutch friction plates. The motor provides the difference between the required input torque of transmission and the torque transmitted through clutch plates. Results of simulation and experiments show that the proposed control strategy performs better than the contrastive control system, the smoothness of driving and the abrasion of clutch can be improved simultaneously. 相似文献
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讲述一种带冷却系统的充电式电钻。在电钻的手柄内设计一通道,依次经过电钻的三个主要组成部分电动机、开关及电池。其中电池壳体开设有若干与外界直接相通的气孔,开关上散热片的叶片处于通道中。当电钻工作时,一部分气流从外界穿过电池,经过开关最后到达电动机。这样,该部分气流冷却电动机前先对电池以及开关进行冷却,从而可以防止电池与开关因为过热而影响其使用寿命。 相似文献
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编辑评价
罗技的这两款音箱产品有着鲜明的特点,其中S315i是为那些IPod/iPhone用户准备的,尽管我个人觉得799元的价格有点儿贵,但那些苹果的Fans们一定不会有和我一样的想法,况且S315i的设计也着实不错,还具备便携性;Z323则是一款性价比优秀的桌面音箱,用它来搭配台式机或笔记本的话,加之罗技的键盘鼠标产品,不仅可获得“四面八方”的音效,还可构成一个完整的“罗技架构”。 相似文献
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谐振充电式脉冲激光电源的研制 总被引:7,自引:1,他引:6
在与全桥电压型充电方式激光电源比较的基础上,提出了一种谐振充电式脉冲激光电源,实验表明,谐振方式能更充分合理地利用功率管定额参数,使电源工作运行更加可靠。 相似文献
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现代社会直流电源发展很快,经济条件好的单位很多已采用了GZDW型设备,但是就我所在的地区很多还采用浮充电式铅酸蓄电池作为直流电源,这种方式运行的蓄电池运行维护较为复杂,因为维护不当造成事故的不在少数,本人在基层工作多年,就浮充电式铅酸蓄电池的运行维护提一些个人的看法,以利于加强铅酸蓄电池的维护与监盘,提高其可靠性,对确保变电所的安全运行具有非常重要的意义。 相似文献
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