Method for optimizing fuel cell automobile power distribution

A fuel cell and distribution method technology, which is applied in electric vehicles, battery/fuel cell control devices, measuring electricity, etc., to achieve a large price advantage, prolong service life, and extend the application range.

Active Publication Date: 2019-12-20
HIGER
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Problems solved by technology

[0004] At present, fuel cell vehicles are equipped with lithium-ion batteries that have a relatively high degree of energy, and some have reached twice the energy of lithium-ion batteries equipped with gasoline-electric hybrid vehicles. If there is no demand for pure lithium-ion driving conditions, a large part of this energy will not be used.

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  • Method for optimizing fuel cell automobile power distribution
  • Method for optimizing fuel cell automobile power distribution
  • Method for optimizing fuel cell automobile power distribution

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Embodiment Construction

[0031] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary only, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.

[0032] The method for optimizing fuel cell vehicle power distribution of the present invention formulates a reasonable fuel cell power following strategy according to the fuel vehicle power, battery power, and lithium-ion battery SOC values. In the same time window, according to the demand of the whole vehicle, the influence of different fuel cell growth rates on the SOC of the lithium-ion battery is tested; under the sam...

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Abstract

The invention discloses a method for optimizing fuel cell automobile power distribution. According to values of fuel whole vehicle power, cell power, a lithium ion cell SOC and the like, a reasonablefuel cell power following strategy is made, and the influence of rise rates of different fuel cells on the lithium ion cell SOC is tested according to the whole vehicle requirements in the same time window; and the influence of different time window ranges on the lithium ion cell SOC is tested according to the whole vehicle requirements at the same fuel cell power growth rate. The suitable time window and the suitable fuel cell power change rate are found, so that the lithium ion cell SOC value fluctuates within a certain range. A good running mode of power distribution of a fuel cell and a lithium ion cell can be achieved, reasonable utilization of resources is guaranteed, and the application range of the lithium ion cell is extended to the maximum.

Description

technical field [0001] The invention belongs to the technical field of fuel cell vehicle management, and in particular relates to a method for optimizing fuel cell vehicle power distribution. Background technique [0002] With the environment and energy pressure and the reduction of state subsidies for pure electric vehicles, fuel cell vehicles with absolutely zero emissions are becoming more and more popular. However, current fuel cell vehicles are not actually hydrogen fuel cell vehicles in the strict sense. All fuel cell vehicles on the market need to be equipped with lithium-ion batteries as auxiliary power sources. Therefore, the fuel cell vehicle currently on the market can only be regarded as a dual-energy hybrid vehicle. Because the fuel cell output power changes slowly, it cannot follow the vehicle power demand to achieve instantaneous changes, so its vehicle power followability is low. Since the fuel cell system cannot meet the instantaneous high current demand o...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L58/40G01R31/385
CPCB60L58/40G01R31/385H01M2250/20H01M8/0494H01M8/04619H01M16/006H01M10/48H01M10/0525B60L58/13B60L3/12Y02T10/70G01R31/387H01M8/04611H01M8/04626H01M8/04932
Inventor 樊海梅张巍熊金峰时玉帅
Owner HIGER
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