Power distribution method of multiple generator units of heavy-duty hybrid electric vehicle

Abstract

The invention discloses a power distribution method of multiple generator units of a heavy-duty hybrid electric vehicle. The method includes the steps that firstly, based on a full-load power, a firstpower and a second power are set; secondly, the drive power required by the whole vehicle is obtained in real time in the vehicle traveling process; thirdly, if the drive power is smaller than or equal to the first power, the fourth step is executed, and if the drive power is larger than the first power and smaller than or equal to the second power, the fifth step is executed; fourthly, the generator unit with the shortest accumulated work time is in a power generation working state, and the second step is executed again; and fifthly, at least two generator units except for the generator unitwith the longest accumulated work time are in a power generation working state, and the second step is executed again. The method effectively solves the problem existing in power distribution in theunited working process of the multiple generator units, the mode that power sections and the accumulated work time are combined is adopted for dividing the multiple generator units and making the designated generator units to output the powers, and therefore the operation service life of the generator units is greatly prolonged.

Description

technical field [0001] The present invention relates to the technical field of heavy-duty hybrid vehicle multi-generator set control, and more specifically, the invention relates to a power distribution method for heavy-duty hybrid vehicle multi-generator set. Background technique [0002] At present, heavy-duty hybrid vehicles often have a large demand for power during driving, and a single generator set is not enough to provide enough energy, so it is necessary to equip multiple generator sets for heavy-duty hybrid vehicles. In order to make the power meet the needs of heavy-duty hybrid vehicles and avoid insufficient power, the existing technology often makes all the generator sets in the vehicle be in the working mode at the same time; Too large will greatly shorten the life of the generator set and increase the maintenance and repair costs of the energy system of heavy-duty hybrid vehicles. [0003] Therefore, on the premise of ensuring the power requirements of heavy-...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of the excessive consumption of the engine itself and the life loss of the generator set in the conventional power distribution method of the multi-generator set of the heavy-duty hybrid vehicle, the present invention innovatively provides a power distribution method of the multi-generator set of the heavy-duty hybrid vehicle. At the same time, from the two perspectives of power section division and cumulative working time, an appropriate number of target generator sets can be designated to work, so as to solve the problems of energy waste of heavy-duty hybrid vehicles and excessive use of individual generator sets.

Images