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An Energy Management Method for Hybrid Electric Vehicle Based on Equivalent Consumption Minimum Strategy

A technology for hybrid electric vehicles and energy management, applied in the direction of electric vehicles, vehicle energy storage, vehicle components, etc., can solve the problems of unreasonable and optimal distribution of energy, stagnant development of fuel cell hybrid electric vehicles, etc., and achieve simplified composition and decomposition The effect of simple calculation and improved execution efficiency

Active Publication Date: 2021-09-14
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Fuel cell hybrid electric vehicles are in their infancy, and the technologies in all aspects are not yet mature. The main problem is that the energy cannot be rationally allocated, which leads to the stagnation of the development of fuel cell hybrid electric vehicles.

Method used

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  • An Energy Management Method for Hybrid Electric Vehicle Based on Equivalent Consumption Minimum Strategy
  • An Energy Management Method for Hybrid Electric Vehicle Based on Equivalent Consumption Minimum Strategy
  • An Energy Management Method for Hybrid Electric Vehicle Based on Equivalent Consumption Minimum Strategy

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Embodiment Construction

[0034] The applicable fuel cell, lithium battery and supercapacitor hybrid vehicle system structure of the present invention are as follows: figure 1 As shown, the fuel cell is connected to the system bus in parallel through the unidirectional DC / DC converter, and the lithium battery and the supercapacitor are connected in parallel to the system bus to provide energy for driving the motor load; the fuel cell is used as the main energy source, The supercapacitor provides instantaneous peak power and absorbs the peak power of the car during braking, and the lithium battery provides the remaining power and absorbs the power that the supercapacitor does not absorb.

[0035] Such as figure 2 Shown, the hybrid electric vehicle energy management method of equivalent consumption minimum strategy of the present invention comprises the following steps:

[0036] Step 1 establishes the energy management system model of the hybrid electric vehicle,

[0037] 1) Establish the power model ...

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Abstract

The invention relates to the field of hybrid electric vehicles, in particular to an energy management method for hybrid electric vehicles with an equivalent consumption minimum strategy. Include the following steps: Step 1: establish the energy management system model of the hybrid electric vehicle; Step 2: construct the energy management strategy of the hybrid electric vehicle through the equivalent consumption minimum strategy of wavelet transform based on the energy management system model of the hybrid electric vehicle; Three: The energy of the hybrid electric vehicle is managed by the energy management strategy of the hybrid electric vehicle. The invention can optimize the energy distribution of the fuel cell, the supercapacitor and the lithium battery in the fuel cell hybrid vehicle, ensure that the SOC of the lithium battery and the supercapacitor work in a proper range, and reduce fuel consumption to the greatest extent.

Description

technical field [0001] The invention relates to the field of hybrid electric vehicles, in particular to an energy management method for hybrid electric vehicles with an equivalent consumption minimum strategy. Background technique [0002] Environmental issues are getting more and more attention from all walks of life, and hybrid vehicles in the automotive field have received widespread attention. Because gasoline-electric hybrid vehicles still have the problem of environmental pollution, pure electric vehicles have the problem of insufficient power supply. Therefore, fuel cell hybrid vehicles are greatly sought after. Fuel cell hybrid vehicles are in their infancy, and the technologies in all aspects are not yet mature. The main problem is that the energy cannot be rationally allocated, which leads to the stagnation of the development of fuel cell hybrid vehicles. Contents of the invention [0003] The present invention aims to provide an energy management method for a ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L58/40B60L50/40B60L50/75
CPCB60L50/40B60L50/75B60L58/40Y02T10/70Y02T90/40
Inventor 陶发展付主木邹朋飞司鹏举高爱云王浩聪石泽华
Owner HENAN UNIV OF SCI & TECH
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