混合动力汽车传动系优化匹配

Matching Optimization of Powertrain for a Hybrid Electric Vehicle

针对扭矩复合型式的并联混合动力汽车,在循环工况和多能源系统能量控制策略确定的前提下,提出了基于复合形原理的动力传动系全局优化算法。该优化算法将燃油消耗作为评价动力优化匹配的依据,以汽车动力性能指标要求模糊化和电池能量平衡为约束条件,对其动力传动系速比进行优化匹配,通过一个具体实例进行了验证和说明。

In this paper, aiming at Parallel Hybrid Electric Vehicles （PHEV）, an algorithm for the global optimization of driveline in the case of a priori known driving speed cycle and a given multipowered control strategy is presented. The fuel consumption or exhuast emissions was taken as objective to evaluate the result of the power optimazation and the fuzziness of vehicle dynamical performance and the balance of batteries energy as the constrained condition to optimize the gear ratio of driveline matching. The validity of the methods was demonstrated by an example.