Automobile energy distribution optimization method and combined power extended range automobile

Abstract

The invention relates to the field of vehicles, and discloses an automobile energy distribution optimization method, which comprises the following steps of: selecting a corresponding range extender operation mode based on the road condition of an area in which a vehicle is about to drive, outputting a road condition switching factor, and selecting a corresponding energy distribution management strategy based on the road condition switching factor and a specified parameter after a new road general information acquisition function is started. According to the method, road requirements are matched with the range extender, the requirements for cruise mileage and special road condition emission can be met, the effects that the control method is simple, the real-time performance is high, the dependence of the control effect on experience is weakened are achieved, and switching of different range extender operation modes under different road condition requirements and optimal management of energy distribution are achieved. According to the combined power extended range automobile, the automobile energy distribution optimization method is adopted, the corresponding energy distribution management strategy can be selected on the basis of the road condition and the specified parameters of the area to be driven into, energy distribution optimization management is achieved, and the effect of weakening the dependence of the control effect on experience is achieved.

Description

technical field [0001] The invention relates to the field of vehicles, in particular to a vehicle energy distribution optimization method and a combined power extended-range vehicle. Background technique [0002] With the continuous strengthening of emission regulations, the requirements for vehicle control are also getting higher and higher. Low noise and low emission are usually required near special places such as schools and hospitals, but the fuel engine range extender hybrid system cannot meet the requirements of low emission and low noise. [0003] Existing technologies usually use fuel cell systems and other green energy alternatives to fuel to meet the needs of long cruising range and low emissions. For combined power range-extended vehicles using fuel cell systems and other energy sources, the optimization of combined energy management strategies is the key to improving the fuel economy of combined power range-extended vehicles. The matching scheme of the combine...

AI Technical Summary

Problems solved by technology

Among them, the rule-based strategy is to pre-define some logic thresholds, and determine the system working mode and torque distribution according to the running state of the vehicle. The control is simple to implement and has strong real-time performance. experience

However, the control algorithm based on global optimization has a large amount of calculation and is difficult to implement. It needs to know the entire cycle working conditions in advance, and cannot be used for online control of vehicles.

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