August 15，Led by Engineer Liu“Hovel control method for active throttle of loader”、“Control method for operation mode of excavator”、“Hydrostatic Steering Control Technology of Bulldozer”Three technical achievements passed the appraisal，All have reached the international leading level.。

Since this year，21 scientific and technological achievements of Liugong have been appraised by China Construction Machinery Industry Association.，Reach the international advanced level。

The appraisal meeting of scientific and technological achievements was organized by China Construction Machinery Industry Association.，Tongji University、Tsinghua University、Guangxi University、Taiyuan University of Science and Technology、Authoritative experts from Tianjin Construction Machinery Research Institute Co., Ltd. and other units form an appraisal committee to appraise scientific and technological achievements on the spot.。

“Hovel control method for active throttle of loader”This achievement can realize the automatic control of the working device and throttle of the loader in the process of shoveling and loading.，Autonomous control through efficient coordination of throttle and working device，O as to reduce the operation intensity of the operator.，Improve the operation efficiency of the loader。

“Control method for operation mode of excavator”This achievement has solved the problem of heavy load of excavator due to working device.、Uncontrollable starting and stopping caused by large starting inertia、Operation jitter, large action impact and the like.，It overcomes the fluctuation of working surface caused by poor controllability when excavator carries out multi-mechanism cooperative action.、Over-tolerance and other technical problems，And greatly improve that operation controllability of the excavator.，Improve the problem of operator fatigue。

“Hydrostatic Steering Control Technology of Bulldozer”A set of hydrostatic steering device is developed on the basis of hydraulic transmission system of bulldozer.，O that the bulldozer adopting the hydraulic transmission technology can realize in-situ steering.，Improve the maneuverability of the equipment。

General Secretary Xi Jinping emphasized in the report of the 20th National Congress of the Party，Adhering to the Core Position of Innovation in the Overall Modernization Construction of Our Country，Accelerate the implementation of innovation-driven development strategy，Accelerate the realization of high-level scientific and technological self-reliance and self-improvement，Speed up the construction of a powerful country in science and technology。As the vanguard of the construction machinery industry，Liugong always takes promoting technological innovation in the industry as its responsibility.，Continuously enhance core competitiveness，Accelerate the transformation of scientific and technological achievements，Continuous introduction of new technologies、New method，High-quality development of construction machinery industry。