【摘要】 论述了工程车辆电液比例换挡控制系统研究的重要意义。阐述了D6 5型动力换挡变速器的电液比例控制方法和系统组成。对系统中比例减压阀加快速充液阀控制离合器接合的控制特性进行了理论分析 ,并对该系统进行了试验研究。试验结果表明该系统具有较高的控制换挡性能 ,具有很好的推广应用价值更多还原

【Abstract】 The composition and working principle of electro-hydraulic proportional control system for power shift transmission of TY165 bulldozer was expatiated.The theoretical analysis on the characteristic of clutch engagement control by means of proportional relief valve and quick flip valve was carried out.The experimental studies on this system were also performed.The result indicated that this electro-hydraulic proportional control system for power shift transmission has good shifting control performance.更多还原