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Energy distribution method of vehicle fuel cell

A fuel cell and energy distribution technology, applied in battery/fuel cell control devices, vehicle energy storage, electric vehicles, etc., to achieve the effect of improving energy utilization efficiency, improving energy efficiency, improving lifespan and using stability

Active Publication Date: 2020-09-29
重庆长安新能源汽车科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The energy distribution method of the vehicle fuel cell disclosed by the present invention not only delays the life of the battery, but also improves the energy efficiency of the entire power system, thereby solving the problem of energy distribution between the fuel cell and the storage battery

Method used

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  • Energy distribution method of vehicle fuel cell

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Embodiment Construction

[0036] The present invention will be further described in detail below in conjunction with the drawings.

[0037] Such as Figure 1 to Figure 5 As shown, the fuel cell energy control system for a vehicle includes a hydrogen storage tank 1, a fuel cell 2, a powertrain controller 3, a battery 4, a motor controller 5, an electric motor 6 and a drive shaft 7. The battery 4 and the fuel cell 2 jointly supply power to the vehicle.

[0038] The hydrogen storage tank 1 provides hydrogen to the fuel cell 2, the electrical output of the fuel cell 2 is connected to the powertrain controller 3, and the electrical output of the battery 4 is connected to the powertrain controller 3, and the powertrain controller 3 The electrical output is connected to the motor controller 5, the electrical output of the motor controller 5 is connected to the motor 6, and the mechanical output of the motor is connected to the drive shaft 7.

[0039] The fuel cell 2 generates electricity, and the generated electri...

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PUM

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Abstract

The invention discloses an energy distribution method of a vehicle fuel cell. When the SOC of a storage battery reaches the lowest limit value, the fuel cell is started by preferentially and efficiently reducing the working area through the fuel cell, so that the cell is rapidly charged into the SOC; then the fuel cell is started to be charged by selecting the point closest to the required power of the whole vehicle in the efficient area; the charging power of the fuel cell to the storage battery is low, secondary conversion of chemical energy and electric energy is reduced, and the economy isimproved; and meanwhile, the problem that a power system cannot meet the requirements of the whole vehicle when the storage battery is lower than SOCmin for a long time is solved.

Description

Technical field [0001] The invention belongs to the technical field of new energy vehicles, and specifically relates to an energy distribution method of a fuel cell for vehicles. Background technique [0002] Fuel cell electric vehicle FCEV (Fuel Cell Electric Vehicle, fuel cell electric vehicle) is to supply the electricity generated by the fuel cell to the electric motor, and the electric motor drives the wheels. Fuel cell vehicles can be divided into two basic types, one is FCEV powered solely by fuel cells, and the other is FCEV powered by fuel cell batteries. Since hybrid power can use energy for the second time, the cost of batteries is much lower than that of fuel cells, and can provide greater instantaneous output power when starting acceleration, so hybrid power is more than fuel cell-powered FCEV It has energy saving and cost advantages. [0003] For hybrid vehicles with two power sources, battery and fuel cell, how to make use of their advantages, the most important th...

Claims

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Application Information

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IPC IPC(8): B60L58/40
CPCB60L58/40Y02T90/40
Inventor 欧阳梅邓承浩周安健喻成余富勇刘建才
Owner 重庆长安新能源汽车科技有限公司
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