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Blade electric vehicle regenerative braking force distribution optimization method

A regenerative braking force, pure electric vehicle technology, applied in electric vehicles, electric braking systems, vehicle components, etc., can solve the problems of drivers frequently braking, energy waste, kinetic energy consumption, etc., to meet safety and economy, fast convergence speed , the effect of increasing the driving distance

Pending Publication Date: 2022-07-22
ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

During the braking process of traditional fuel vehicles, friction consumes kinetic energy and converts kinetic energy into heat energy, which is wasted
Due to various factors such as emergency situations, drivers may brake frequently, which results in most of the energy wasted

Method used

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  • Blade electric vehicle regenerative braking force distribution optimization method
  • Blade electric vehicle regenerative braking force distribution optimization method
  • Blade electric vehicle regenerative braking force distribution optimization method

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Embodiment Construction

[0112] Below with reference to the accompanying drawings, through the description of the embodiments, the specific implementation of the present invention, such as the shape and structure of each component involved, the mutual position and connection relationship between each part, the function and working principle of each part, and the manufacturing process and operation and use methods, etc., are described in further detail to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solutions of the present invention.

[0113] The invention provides a method for optimizing the regenerative braking force distribution of pure electric vehicles based on multi-objective genetic algorithm. The invention uses the data fed back by the automobile bus CAN to form the total data set of target electric vehicle detection, and realizes the accurate establishment of the mathematical model of the whole vehicle. In terms...

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Abstract

The invention discloses a regenerative braking force distribution optimization method for a pure electric vehicle, which comprises the following steps of: when the vehicle is braked, judging the friction force borne by a current tire in real time, dividing the braking process into different time periods including a low time period, a middle time period and a high time period according to the change of the friction force, and executing a preset distribution strategy in the corresponding time period. According to the regenerative braking force distribution optimization method for the pure electric vehicle, based on a time-sharing friction force distribution strategy, the braking force demand value of each tire point in the braking process can be collected, the energy storage system can be guided to reasonably distribute the power supply time and the power supply amount, and the effect of optimizing braking force distribution is achieved.

Description

technical field [0001] The invention relates to the related technical field of new energy vehicles, in particular to a method for optimizing regenerative braking force distribution of pure electric vehicles based on a multi-objective genetic algorithm. Background technique [0002] As a means of transportation, automobiles play a very important role in our daily life and provide great convenience for people's daily life. [0003] Compared with traditional fuel vehicles, pure electric vehicles use permanent magnet motors instead of internal combustion engines to generate power through electricity. In addition, pure electric vehicles have the characteristics of braking energy regeneration feedback and precise adjustment of braking torque. During the braking process of traditional fuel vehicles, kinetic energy is consumed due to friction, and the kinetic energy is converted into heat energy and wasted. Due to various factors, such as emergency situations, drivers may brake fr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L7/18
CPCB60L7/18
Inventor 陆华才沈云畅李满华汤祥宇张彦胡俊
Owner ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE
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