液压混合动力工程车辆能量控制策略

为解决液压混合动力工程车辆制动系统的能量控制问题，引进了制动系统转矩分配系数，基于模糊控制原理，以制动强度、再生蓄能器初始SOC、车速作为输入信息，以再生制动力与电液制动力的分配比例为输出信息，设计了液压混合动力车辆制动能量模糊控制策略。运用MATLAB/Simulink进行仿真,分析了该控制策略在制动模式下的再生制动转矩和电液制动转矩分配的实时变化情况，并与同条件下不用该控制策略进行了对比分析，证明了该控制策略在确保制动安全性的前提下可以高效的提高能量回收效率。

Energy Control Strategy of Hydraulic Hybrid Engineering Vehicle

To solve the problem of energy control of hydraulic hybrid Engineering vehicles braking system, the torque distribution coefficient of braking system is introduced, and the hydraulic hybrid vehicle braking energy fuzzy control strategy is designed based on the fuzzy control principle，which takes the braking intensity, the initial SOC of regenerative accumulator, and the speed as the input information and the distribution proportion of the power of the regenerative braking power and the electro hydraulic power distribution as the output information. The control strategy of real time changes is analyzed in the braking mode of the regenerative braking torque and electric hydraulic braking torque distribution by MATLAB/Simulink. Comparing with the situation without using this control strategy in the same condition, it is proved that the control strategy can improve the energy recovery efficiency on the premise of ensuring the braking safety.