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Fuel cell multi-energy control method and device and vehicle

A fuel cell and control method technology, applied in the field of vehicles, can solve problems such as difficulty in realizing optimal power shunt of power supply, achieve optimal energy management, prolong life, and solve the effect of high coupling degree

Active Publication Date: 2021-10-29
DONGFENG MOTOR GRP
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Problems solved by technology

[0005] The invention provides a fuel cell multi-energy control method, device, and vehicle to solve or partially solve the technical problem that it is difficult to realize optimal power splitting between power sources

Method used

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  • Fuel cell multi-energy control method and device and vehicle
  • Fuel cell multi-energy control method and device and vehicle

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Embodiment Construction

[0060] In order to enable those skilled in the technical field to which the application belongs to understand the application more clearly, the technical solutions of the application will be described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0061] The present invention provides a fuel cell multi-energy control method. Under the fuel cell power following control strategy, the fuel cell is controlled on and off, and the split strategy is determined to carry out two-stage power split for the required power of the vehicle. After the power distribution of the fuel cell, battery, and supercapacitor, based on the compound logic threshold, the optimal power split between the battery and the supercapacitor is realized, and the optimal energy management of the compound power system is realized. It solves the problems of high coupling degree of composite energy and complicated control strategy, enables the fuel cell to run smoothly und...

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Abstract

The invention discloses a fuel cell multi-energy control method and device and a vehicle, under a fuel cell power following startup and shutdown control strategy, startup and shutdown control is carried out on a fuel cell, a shunting strategy is determined to carry out two-stage power shunting on the required power of the whole vehicle, after power distribution of the fuel cell, a storage battery and a super capacitor is determined, based on the composite logic threshold, the optimal power shunting between the storage battery and the super capacitor is realized, and the optimal energy management of a composite power supply system is realized. The problems of high coupling degree and complex control strategy of the composite energy are solved, the fuel cell can stably operate under different operation conditions, the service life of the fuel cell is prolonged, and the advantages of a vehicle model with the fuel cell, the power battery and the super capacitor can be brought into full play.

Description

technical field [0001] The present application relates to the technical field of vehicles, in particular to a fuel cell multi-energy control method and device, and a vehicle. Background technique [0002] Environmental pollution, energy crisis and other issues have become major challenges facing mankind. With the continuous development of new energy technologies, hydrogen energy has gradually become a research and development hotspot in various countries due to its advantages of cleanliness, pollution-free, high conversion efficiency and high energy density. . [0003] Traditional single power source or dual power source fuel cell vehicle system energy storage solutions are relatively simple to control, but it is difficult to take into account factors such as life and economy. The fuel cell-battery-supercapacitor composite power supply system configuration has good power density and energy density, can give full play to the advantages of each power supply, and improve the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L58/40B60L50/75B60L50/40
CPCB60L58/40B60L50/75B60L50/40B60L2240/54B60L2240/40Y02T10/70Y02T90/40
Inventor 李洪涛刘俊辉
Owner DONGFENG MOTOR GRP
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