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Electric car driving range estimation method based on prediction of working condition and fuzzy energy consumption

A driving range, electric vehicle technology, applied in electric vehicles, electrical devices, vehicle components, etc., can solve the problem of power consumption, the inability to obtain information about electric vehicles in real time, etc., to achieve the effect of real energy consumption

Inactive Publication Date: 2017-02-22
JIANGSU UNIV
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Problems solved by technology

[0003] Aiming at the deficiencies of the prior art, the present invention provides a method for estimating the mileage of electric vehicles based on working condition prediction and fuzzy energy consumption, which solves the problem that the process of estimating the mileage cannot obtain relevant information of electric vehicles in real time, and the power consumption is affected by many factors. question

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  • Electric car driving range estimation method based on prediction of working condition and fuzzy energy consumption
  • Electric car driving range estimation method based on prediction of working condition and fuzzy energy consumption
  • Electric car driving range estimation method based on prediction of working condition and fuzzy energy consumption

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Embodiment Construction

[0042] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited thereto.

[0043] The flow chart of the method for estimating the driving range of electric vehicles based on working condition prediction and fuzzy energy consumption is as follows: figure 1 shown, including steps:

[0044] S1. Based on the Markov algorithm to realize the prediction of the working conditions and use the BP neural network to correct the prediction results,

[0045] S1.1, define the set S to represent the state of the driving condition, and the time series X(t) represents the value of the driving condition at time t, and assign the driving conditions to different states, thus forming the state of the driving condition For: S={s 1 ,s 2 ,...,s k}(1);

[0046] S1.2, using statistical methods to find the transition probability matrix. order m i represent...

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Abstract

The invention discloses an electric car driving range estimation method based on prediction of working condition and fuzzy energy consumption. Based on the prediction of working condition and fuzzy energy consumption, the method includes steps of predicting the working condition on the basis of a Markov algorithm and modifying the predicted result through a BP neutral network; setting up a fuzzy rule base between a characteristic parameter and energy consumption; optimizing the driving range L per unit kilometer; and estimating the rest driving range Srest. The electric car driving range estimation method combines the prediction of working condition with the fuzzy energy consumption, obtains related information of the electric car in real time, and is rarely impacted by other external factors of cars, such as environmental temperature, vehicle driving state and others; meanwhile, the consumption energy is segmented on a certain degree, and thereby more truthfully reflecting the real energy consumption of car speed.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to a method for estimating the mileage of electric vehicles based on working condition prediction and fuzzy energy consumption. Background technique [0002] With the rapid increase in the number of traditional fuel vehicles, the environmental pollution caused by fuel vehicles and the problem of global fuel depletion are also becoming more and more serious. Due to the advantages of environmental protection and energy saving, electric vehicles have attracted more and more attention, but because of their limited driving range, they have been widely promoted. In order to improve the convenience of using electric vehicles, it is necessary not only to improve the mileage, but also to study the real-time monitoring of the status of electric vehicles and the real-time estimation of the mileage, so as to provide accurate vehicle information for drivers. The driving range of elect...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L3/12G01C21/20
CPCB60L3/12G01C21/20
Inventor 盘朝奉谢明维陈燎陈龙江浩斌王丽梅袁朝春汪少华
Owner JIANGSU UNIV
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