共查询到19条相似文献,搜索用时 156 毫秒
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陆地巡洋舰(Land Cruiser)汽车前、且差速器的工作,是由差速器锁止控制开关控制,该开关位于仪表组件内,只有在车速低于8km/h时且中央差速器锁止指示灯开关接通时,前、后差速器才可以锁止。介绍了差速器电控锁止系统工作情况及电路的检测。 相似文献
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一、自动锁止差速器的工作原理 自动锁止差速器(ASD)由电脑控制,只有在需要时,才与差速锁止机构啮合.位于速度表内的功能指示灯点亮,表明ASD与锁止机构啮合. 相似文献
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我公司 YZ14B压路机变速箱中配制了独特的牙嵌式差速器 ,与其它类型相比 ,不仅能确保两侧驱动轮以不同转速旋转 ,而且在一侧打滑时 ,可自由将扭矩全部传至另一侧 ,无需人为设置连锁操作装置 ,很利于压路机作业行驶。1 牙嵌式差速器结构牙嵌式差速器的结构如图 1所示。图 1 牙嵌式差速器结构示意图图 2 牙嵌式差速器装配示意图各零件相互位置见图 2。十字轴固定于左右差速器壳十字槽内。中央接盘外圆轴向键槽与十字轴内孔轴向键配合 (间隙 ) ,靠卡簧固定在十字轴内孔中央 ;它不能轴向移动 ,但能相对十字轴作微量转动。十字轴两端面沿圆… 相似文献
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在强制锁止式差速器的轮间差速锁操纵机构中,最常用的执行元件是电控气缸。它的主体结构和人们常见的单杆普通气缸没什么不同,只是多了个行程开关,使推杆在适当位置接通电路而发出信号。多年来,汽车行业对这种简单执行元件的结构改进始终兴趣不减,这是为什么呢? 概括地说,差速锁气缸的作用是接合或分离汽车驱动桥上的差速锁接合器,使差速器在通过难行路段时不起作用,达到提高汽车通过性的目的,或使差速器在良好路段及时工 相似文献
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一、自动锁止差速器的工作原理自动锁止差速器(ASD)由电脑控制,只有在需要时,才与差速锁止机构啮合。位于速度表内的功能指示灯点亮,表明ASD与锁止机构啮合。来自速度传感器的信号传给ASD电脑,ASD电脑将前后轮的平均速度信号进行处理后,向各液压单元内的电磁阀发出一个指令。随 相似文献
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W. Ryu N. Cho I. Yoo H. Song H. Kim 《International Journal of Automotive Technology》2009,10(1):115-121
In this study, the performance of a CVT clutch system for a hybrid electric vehicle was investigated. To analyzed the vehicle
performance at restart, the restart delay and driveshaft torque was investigated by simulations and experiments. It was found
from the simulation results that the vehicle restart response depends on the clutch pressure buildup time to the point where
the clutch torque begins to overcome the vehicle road load, and driving comfort at restart is directly related to the rate
change of the clutch pressure. 相似文献
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W. Guo S. H. Wang C. G. Su W. Y. Li X. Y. Xu L. Y. Cui 《International Journal of Automotive Technology》2014,15(4):683-698
The shift comfort and efficiency of Automatic Transmission in vehicle are highly influenced by the pressure of the clutch shift control system, especially by the electro-hydraulic clutch subsystem. In this paper, the new design principles of electro-hydraulic clutch systems developed and modeled in detail, the clutch-to-clutch control system is analyzed in three time intervals: oil filled phase, changing phase of clutch torque and synchronous phase of clutch speed. The demand pressures for the engaged clutches calculated in each phase and is precisely built up by using fuzzy slide mode control, the time of hydraulic pressure building-up is very sensitive to the dither current in simulation. All control parameters are optimized by Cosimulation between software Simulink and SimulationX. Finally, the optimal algorithm of the clutch shift control is written into the transmission control unit of a testing vehicle. The testing results show that the suggested control strategy is effective. 相似文献
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S. J. Kim C. Song K. -S. Kim Y. -S. Yoon 《International Journal of Automotive Technology》2014,15(1):125-134
Conventional geared transmissions use some kinds of clutches to control the power flow from an internal combustion engine to the driveline while shifting gears. However, the shifting performance is seriously affected by the clutch engagement and an unavoidable drop in the torque may occur when the clutch is disconnected. Moreover, wear of the clutch, the need for hydraulic equipment, and the load limit may together aggravate the limits of the clutch system. For this reason, as a novel transmission without a clutch, the clutchless geared smart transmission (henceforth CGST) is proposed by our research team. The CGST controls the power flow in a multiple-input gear-train by controlling the electric motor attached to the planetary gear system. However, no CGST has been realized in an actual vehicle thus far, and the performance has been predicted only theoretically. In this research, we analyzed the achievable performance based on a developed CGST dynamic model with a typical CGST structure. In addition, a CGST gear-shifting algorithm is proposed for use with the dynamic model. From the simulation results, the CGST does not show an abrupt drop in its torque or oscillation while shifting gears due to the absence of a discontinuous power flow. The developed dynamic model can serve as a performance reference for the CGST. Moreover, it can be used as a simulation tool for developing a gear-shifting control logic scheme. 相似文献
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