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装载机输出功率呈明显的周期性急剧波动且能耗率较高,非常适合发展混合动力技术,与汽车相似,混合动力装载机也有多种结构形式,详细探讨了同轴并联混合动力装载机的控制策略.同轴并联混合动力装载机的载荷感知问题是控制策略的关键,比较了油门踏板载荷感知方案、变矩器转速比载荷感知方案和需求转矩在线估计方案,最终采用需求转矩在线估计方案感知装载机载荷,并按照该载荷感知方案制定了控制策略.利用Cruise软件搭建同轴并联混合动力装载机仿真平台,在MATLAB/Simulink环境下搭建控制策略模型,通过联合仿真验证了该控制策略的有效性,并获得了约11%的节油效果.
Loader output power showed a sharp cyclical fluctuations and high energy consumption rate, is very suitable for the development of hybrid technology, and cars are similar, hybrid loaders also have a variety of structures, discussed in detail the coaxial parallel hybrid loaders Control strategy.The load sensing of coaxial parallel hybrid loaders is the key of the control strategy.The accelerator pedal load sensing scheme, torque converter speed ratio load sensing scheme and demand torque on-line estimation scheme are compared. Finally, The estimation scheme is used to perceive the load of the loader and control strategies are formulated according to the load sensing scheme.The simulation platform of the coaxial parallel hybrid loader is built by Cruise software and the control strategy model is built under the MATLAB / Simulink environment. The effectiveness of the strategy, and received about 11% of the fuel-efficient effect.