Minimum equivalent fuel consumption-based hybrid electrical vehicle control method

A technology for hybrid electric vehicles and fuel consumption, which is applied in hybrid electric vehicles, motor vehicles, transportation and packaging, and can solve problems that are difficult to achieve

Inactive Publication Date: 2012-04-18
DALIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the global optimal control method can achieve real optimization, it needs to know the entire driving condition in advance to obtain the global optimal performance of the hybrid vehicle under the driving condition. hard to accomplish

Method used

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  • Minimum equivalent fuel consumption-based hybrid electrical vehicle control method
  • Minimum equivalent fuel consumption-based hybrid electrical vehicle control method
  • Minimum equivalent fuel consumption-based hybrid electrical vehicle control method

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Embodiment

[0057] Take the two-shaft parallel hybrid drive system as an example to illustrate, such as figure 1 Shown; The present invention comprises off-line and on-line two major parts; Off-line part comprises nominal equivalence factor obtaining module, and on-line part comprises signal acquisition module, working condition identification module, self-adaptive adjustment module and optimization control module; The principle of this method is as follows figure 2 As shown, the specific control method includes the following steps:

[0058] First, to obtain the nominal equivalent factor, it is completed by the nominal equivalent factor acquisition module in the offline part;

[0059] Through the analysis of the driving conditions of the vehicle, five different types of driving conditions are obtained by using principal component analysis and cluster analysis techniques, which are the downtown area, the relatively unobstructed urban area, the suburban area, and the suburban area. Workin...

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Abstract

The invention discloses a minimum equivalent fuel consumption-based hybrid electrical vehicle control method, which comprises the following steps of: acquiring a nominal equivalence factor offline; acquiring signals; identifying working conditions; performing adaptive regulation; and performing optimum control. Under the condition of meeting the requirement of dynamic property, the minimum equivalent fuel consumption-based hybrid electrical vehicle control method is adopted, adaptive regulation can be performed according to an actual working condition, and the electric quantity balance of a storage battery is ensured, so that the performance and service life of the storage battery are ensured. The nominal equivalence factor is acquired through simulation calculation in the offline state, and calculated quantity for real-time control of the whole vehicle is reduced. In addition, different from a global optimal control method in which a future vehicle running working condition is required to be known (the future vehicle running working condition is unpredictable actually), the method has high implementability; and by the method, the real-time optimal energy management decision can be provided, the fuel economy of the whole vehicle is further improved, and the emission is reduced.

Description

technical field [0001] The invention relates to a hybrid electric vehicle control method, in particular to a hybrid electric vehicle control method based on minimum equivalent fuel consumption. Background technique [0002] Energy saving, environmental protection and safety are the three major themes of the development of the world automobile industry in the 21st century. Hybrid electric vehicles are considered to be one of the effective ways to solve the problems of energy crisis and environmental pollution faced by automobiles in this century. Due to the integration of the characteristics of traditional vehicles and pure electric vehicles, hybrid vehicles have two types of on-board energy sources, making them have lower emissions and higher fuel economy than traditional vehicles, as well as a longer driving range than pure electric vehicles. mileage features. The control method is the key to determine the fuel economy and emission of hybrid electric vehicles, and it is o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W20/00B60W10/04B60W10/26B60W40/02B60W40/105B60W20/10
Inventor 连静李琳辉周雅夫韩虎沈晓勇吕仁志田宝玉贾朴
Owner DALIAN UNIV OF TECH
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