Hydrogen fuel cell control method applied to counterbalance forklift truck
A fuel cell and control method technology, applied in battery/fuel cell control devices, electric vehicles, vehicle energy storage, etc., can solve the problems of high pollution, fast hydrogenation, low efficiency, etc., to reduce power loss and improve fuel efficiency. Effectiveness of utilization and improved economy
Inactive Publication Date: 2021-12-03
ANHUI HELI CO LTD
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Problems solved by technology
Traditional internal combustion forklifts are mainly gasoline and diesel engines, which have low efficiency and high pollution. Although pure electric forklifts solve the problem of carbon emissions, there is pressure on frequent battery replacement and battery recycling. Therefore, hydrogen fuel cells are used as the main power source. Forklifts began to appear. It overcomes the emission problems of traditional internal combustion forklifts and the shortcomings of battery recycling and frequent replacement of pure electric forklifts. High-quality power source has attracted the attention of the logistics industry around the world
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[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0018] A hydrogen fuel cell control method applied to a counterbalanced forklift, such as figure 1 As shown, it includes the fuel cell stack FC, DC-DC module, power battery and load. The fuel cell stack FC is the main power source of the counterbalanced forklift and is used to provide electric energy for the whole vehicle and the power battery. The DC-DC module is used to control The electric energy output by the fuel stack FC is converted to DC to supply the ...
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The invention discloses a hydrogen fuel cell control method applied to a counterbalance forklift truck, and belongs to the field of power distribution of hybrid power systems. The hydrogen fuel cell control method comprises the following steps: S1, judging whether a fuel electric push FC meets a start-stop condition or not based on a single voltage state of a power cell and a whole truck load demand; S2, judging whether the pressure value of a hydrogen cylinder in the FC is in a preset pressure interval or not, if yes, turning to S3, otherwise, outputting power to a whole vehicle load by a power battery, giving an alarm by a whole vehicle, outputting limited current, or locking the function; and S3, judging the distribution relation between the required power of the whole vehicle and the fuel stack FC and the power battery, if the current is greater than the sum of the two, reporting an over-current fault by the whole vehicle, otherwise, respectively distributing the output power to the whole vehicle load according to the first priority and the second priority by the fuel stack FC and the power battery. According to the invention, the characteristics of hybrid power supply are fully utilized, the economical efficiency of the system is improved, the power loss is reduced, the fuel utilization rate is improved, and the FC is always kept working in a high-efficiency area.
Description
technical field [0001] The invention relates to the field of power distribution of a hybrid power system, in particular to a hydrogen fuel cell control method applied to a counterweight forklift. Background technique [0002] With the development of the logistics and warehousing industry, forklifts are favored as an indispensable handling tool. Traditional internal combustion forklifts are mainly gasoline and diesel engines, which have low efficiency and high pollution. Although pure electric forklifts solve the problem of carbon emissions, there is pressure on frequent battery replacement and battery recycling. Therefore, hydrogen fuel cells are used as the main power source. Forklifts began to appear. It overcomes the emission problems of traditional internal combustion forklifts and the shortcomings of battery recycling and frequent replacement of pure electric forklifts. The high-quality power source has attracted the attention of the logistics industry around the world...
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Login to View More IPC IPC(8): B60L58/40
CPCB60L58/40B60L2200/42Y02T10/70
Inventor 许利利张军张克军白迎春
Owner ANHUI HELI CO LTD