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Extended-range electric vehicle energy management control method based on charging management

A charging management, electric vehicle technology, applied in electric vehicles, battery/fuel cell control devices, motor vehicles, etc., to reduce driving costs, improve emission performance, and improve economy.

Inactive Publication Date: 2021-03-30
JILIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing energy management and control strategies for extended-range electric vehicles mainly focus on how to save energy during the driving process. There is currently little research on how to reduce fuel consumption and improve vehicle economy by making full use of clean and cheap electric energy in the power grid. have research

Method used

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  • Extended-range electric vehicle energy management control method based on charging management
  • Extended-range electric vehicle energy management control method based on charging management
  • Extended-range electric vehicle energy management control method based on charging management

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Embodiment Construction

[0035] In order to make the objectives, technical solutions and advantages of the invention more clearly understood, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0036] The present invention provides a charging management-based energy management control method for an extended-range electric vehicle. For the design process of the method, please refer to figure 1 and figure 2 , including the following steps:

[0037] Step 1: Establish a multi-workpoint energy control strategy framework

[0038] S1: According to the power demand of the whole vehicle and referring to the universal characteristic curve of the engine, one operating point is selected when the engine is in light load, medium load, and high load respectively, and the three selected operating points are respectively defined as increasing Working point 1, working point 2, and working point 3 of the programmer;

[0039] S2: Ac...

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Abstract

The invention discloses an extended-range electric vehicle energy management control method based on charging management. The method adds a charging management scheme on the basis of an original multi-working-point control strategy, thereby enabling a whole vehicle to use clean and cheap electric energy in a power grid as much as possible, i.e., improving the time proportion of a pure electric driving mode as much as possible. The utilization rate of cheap clean electric energy in the power grid by the extended-range electric vehicle is increased, the whole vehicle driving cost is reduced, andthe economy is improved; the starting time of the extended-range mode of the extended-range electric vehicle is shortened, the emission performance of the whole vehicle is improved, and the urban airquality is improved to a certain extent. According to the invention, a driver is timely reminded of charging, and a series of processes and strategies are formulated to assist the driver in charging,so that clean and cheap electric energy in the power grid can be fully utilized in the driving process of the extended-range electric vehicle, and the economy and emission performance of the extended-range electric vehicle are optimized.

Description

technical field [0001] The invention belongs to the technical field of new energy vehicles, and in particular relates to an energy management control method for an extended-range electric vehicle. Background technique [0002] In recent years, countries around the world have vigorously developed new energy vehicles in order to reduce the impact of air pollution and the greenhouse effect on the environment. Among them, pure electric vehicles can achieve no emission during the whole driving process, but due to the low energy density of their power batteries, high cost and short driving range, the current promotion process has been greatly hindered. However, the extended-range electric vehicle has become a research hotspot of new energy vehicles because of its small power battery, low cost and considerable driving range. [0003] Range-extended electric vehicles have two energy sources, the power battery and the range extender. Coordinating the distribution of the required pow...

Claims

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Application Information

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IPC IPC(8): B60L50/62B60L58/12
CPCB60L50/62B60L58/12Y02T10/62Y02T10/70
Inventor 闵海涛罗祥
Owner JILIN UNIV
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