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Energy storage management system and method of fuel cell vehicle

A fuel cell and management system technology, applied in the direction of electric energy management, electric vehicles, battery/fuel cell control devices, etc., can solve the problems of low energy utilization rate and slow energy dynamic response, so as to improve energy dynamic response speed and energy utilization rate effect

Active Publication Date: 2020-12-11
WUHAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention provides a fuel cell vehicle energy storage management system and method to

Method used

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  • Energy storage management system and method of fuel cell vehicle
  • Energy storage management system and method of fuel cell vehicle
  • Energy storage management system and method of fuel cell vehicle

Examples

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Example Embodiment

[0030] Example 1

[0031] The embodiment of the present invention provides a fuel cell vehicle energy storage management system, the structural block diagram of which is as follows: figure 1 As shown, the system includes a vehicle controller 01, a fuel cell 02, a super capacitor 03, a unidirectional DC / DC converter 04 and a bidirectional DC / DC converter 05;

[0032] The vehicle controller 01 obtains the required power of the vehicle, and determines whether the required power of the vehicle is greater than 0. If not, the supercapacitor 03 and the one-way DC / DC converter 04 are not connected, so that the two-way DC / DC converter is turned off. The DC converter 05 is connected to the motor 06, and the fuel cell 02 does not work, so that the super capacitor 03 recovers the braking energy and is in a charging state. If so, then

[0033] The vehicle controller 01 judges whether the required power of the vehicle is less than the rated power, and if so, the supercapacitor 03 and the one...

Example Embodiment

[0054] Example 2

[0055] The embodiment of the present invention provides a fuel cell vehicle energy storage management method, comprising the following steps:

[0056] Obtain the required power of the entire vehicle, and determine whether the required power of the entire vehicle is greater than 0. If not, the fuel cell will not work, and the supercapacitor will recover the braking energy and be in a charging state. If so, then

[0057] Determine whether the power demanded by the whole vehicle is less than the rated power. If so, use the fuel cell to meet the power demand alone, and use the super capacitor to adjust the load sudden change. If not, then

[0058] Determine whether the required power of the whole vehicle is less than the maximum power of the fuel cell. If so, determine the power provided by the fuel cell and the state of the supercapacitor according to whether the voltage of the supercapacitor reaches the maximum working voltage. If not, then

[0059] According...

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PUM

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Abstract

The invention discloses an energy storage management system and method of a fuel cell vehicle, and belongs to the technical field of hydrogen fuel cell vehicles, which solves the problems of low energy dynamic response speed and low energy utilization rate in the prior art. The energy storage management system of the fuel cell vehicle comprises a vehicle control unit, a fuel cell, a super capacitor, a one-way DC/DC converter and a two-way DC/DC converter, wherein the vehicle control unit is used for obtaining the required power of the whole vehicle, and the disconnection or connection of the one-way DC/DC converter and the two-way DC/DC converter is determined according to the required power of the whole vehicle, so that the power provided by the fuel cell and the state of the super capacitor are determined. According to the energy storage management system of the fuel cell vehicle, the energy dynamic response speed and the energy utilization rate of the fuel cell vehicle are increased.

Description

technical field [0001] The invention relates to the technical field of hydrogen fuel cell vehicles, in particular to an energy storage management system and method for fuel cell vehicles. Background technique [0002] With the continuous acceleration of the global automobile industrialization process, the use of resources and environmental pollution have attracted more and more attention; it is estimated that if the current resource consumption rate is used, the global oil resources will be used up within 50 years, and most of the oil is used for At the same time, the problem of environmental pollution caused by the harmful gas emitted by traditional vehicles relying on petroleum has also begun to be paid attention to. Hydrogen fuel cell vehicles are becoming more and more popular due to their high energy conversion efficiency and almost zero emission pollution. It is foreseeable that with the development of automobile technology, the application of hydrogen fuel cell vehicl...

Claims

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Application Information

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IPC IPC(8): B60L58/30B60L50/40B60L7/10
CPCB60L58/30B60L50/40B60L7/10Y02T10/70Y02T10/72Y02T90/40
Inventor 田韶鹏董帅郑青星
Owner WUHAN UNIV OF TECH
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