基于极小值原理的混动瞬时优化能量管理策略

Hybrid Instantaneous Optimization Energy Management Strategy Based on Minimum Principle

以发动机瞬时燃油消耗最小为目标建立性能泛函,通过发动机、电机、电池数学模型建立Hamilton目标函数,采用最优控制的Pontryagin极小值原理解析目标函数,在控制集范围内搜索使目标函数达到最小值的最优控制变量,从而计算出控制电机扭矩与发动机扭矩的最优控制值。

Establish a general letter of performance with the minimum of the engine instantaneous fuel consumption.The Hamilton target function is established through the engine,motor,and battery mathematical model.Using Pontryagin’s minimal principle analysis target function,the optimal control variables that make the target function reach the minimum value within the control set range,thereby calculating the optimal control value of the control motor torque and the engine torque.