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A configuration optimization method for a dual planetary row power-split hybrid power system

A technology for hybrid power system and configuration optimization, applied to hybrid vehicles, motor vehicles, transportation and packaging, etc., can solve the problems of seldom considering manufacturing and engineering related indicators, lack of comprehensive performance evaluation methods, etc., and shorten the optimization time , reduce computational complexity, reduce the effect of workload

Active Publication Date: 2021-10-08
TONGJI UNIV
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Problems solved by technology

However, most studies only select acceleration performance or fuel economy or both as indicators for evaluating the effectiveness of configuration optimization design, and rarely consider other manufacturing and engineering-related indicators, lacking comprehensive performance evaluation methods

Method used

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  • A configuration optimization method for a dual planetary row power-split hybrid power system
  • A configuration optimization method for a dual planetary row power-split hybrid power system
  • A configuration optimization method for a dual planetary row power-split hybrid power system

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Embodiment 1

[0081] A configuration optimization method for a dual-planetary row power-split hybrid power system, the process is as follows figure 1 As shown, it mainly includes: configuration library generation, establishment of general energy management strategy, Beetle Antennae Search (Beetle Antennae Search-BAS) algorithm preliminary screening, configuration comprehensive performance evaluation and screening process. Among them, the comprehensive performance evaluation and screening process of configuration schemes includes two parts: particle swarm optimization (Particle swarm optimization-PSO) secondary screening and candidate scheme set screening module.

[0082] The main steps are:

[0083] S1: According to the pre-set clutch constraints and the possible connection relationship between the components of the dual-planetary row power-split hybrid system, generate the configuration library and the sub-configurations of each configuration in the configuration library;

[0084] S2: Rem...

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Abstract

The invention relates to a configuration optimization method for a dual-planetary row power-split hybrid power system, comprising the following steps: generating a configuration library according to clutch constraints and possible connection relationships between components; removing configurations that do not meet the configuration constraints type, establish a general energy management strategy for each configuration; obtain a preliminary optimized configuration library based on the beetle's whisker search algorithm; establish a candidate solution set screening module; obtain each preliminary optimized configuration based on the particle swarm optimization algorithm and the candidate solution set screening module Optimizing the configuration; screening the modules based on the candidate scheme set to obtain the optimal configuration. Compared with the prior art, the present invention fully optimizes the design of all feasible configurations of the double planetary row, and can adapt to the engineering requirements of different user design goals; The comprehensive performance evaluation index is used as the optimization objective function, combined with the particle swarm optimization algorithm to realize the rapid optimization of the best scheme of the configuration comprehensive performance.

Description

technical field [0001] The invention relates to the technical field of hybrid electric vehicles, in particular to a configuration optimization method of a double planetary row power split hybrid power system. Background technique [0002] With the increasingly serious energy shortage and environmental pollution problems, the regulations on fuel consumption and emissions in the world are becoming increasingly stringent, which has led to the rapid development and application of deep hybrid and plug-in hybrid vehicles. As their representative, power-split hybrid electric vehicles are generally recognized by the market for their excellent fuel consumption performance, and are one of the most competitive solutions to meet both market demand and regulatory requirements. [0003] The power split system consists of a planetary row coupling mechanism, generator, motor, engine, battery, wet brake or clutch, etc. Generally, one or more planetary gear rows are used as a power split devi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W20/11
CPCB60W20/11
Inventor 赵治国顾佳鼎陈溢唐鹏黄琪琪
Owner TONGJI UNIV
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