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Hybrid electric vehicle energy management method of equivalent minimum consumption strategy

A hybrid vehicle and energy management technology, applied in 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 vehicles, etc., to ensure economical, Simplify composition, decompose and calculate simple effects

Active Publication Date: 2020-11-27
HENAN UNIV OF SCI & TECH
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  • 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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  • Hybrid electric vehicle energy management method of equivalent minimum consumption strategy
  • Hybrid electric vehicle energy management method of equivalent minimum consumption strategy
  • Hybrid electric vehicle energy management method of equivalent minimum consumption 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, and particularly relates to a hybrid electric vehicle energy management method of an equivalent minimum consumption strategy. The methodcomprises the following steps: 1, establishing an energy management system model of a hybrid electric vehicle; 2, constructing an energy management strategy of the hybrid electric vehicle based on the energy management system model of the hybrid electric vehicle through an equivalent minimum consumption strategy of wavelet transform; and 3, managing the energy of the hybrid electric vehicle according to the energy management strategy of the hybrid electric vehicle. River optimal distribution can be carried out on energy of a fuel cell, a super capacitor and a lithium battery in the fuel cellhybrid electric vehicle, the lithium battery and the super capacitor SOC can be ensured to work within a proper range, and fuel consumption is reduced to the maximum 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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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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