Control method of fuel cell system capable of recovering energy

Abstract

The invention belongs to the technical field of fuel cell control, and discloses a control method of a fuel cell system capable of recovering energy. Electric energy generated during braking of the fuel cell vehicle is generally recycled through a power battery, so that the energy consumption of the whole vehicle is saved. However, when the whole vehicle runs downhill for a long time, the condition that the SOC of a power battery is fully charged often occurs. When the energy of the whole vehicle is recovered, the energy can be recovered through the heater PTC and the air compressor which are components of the fuel cell system, so that the energy consumption of the whole vehicle is reduced.

Description

technical field [0001] The invention belongs to a fuel cell system control method, in particular to a fuel cell system control method capable of recovering energy. Background technique [0002] A fuel cell is a power generation device that uses hydrogen as fuel. It is currently mostly used in the automotive field to provide kinetic energy for vehicles. The electrical energy generated by fuel cell vehicles during braking is generally recovered through power batteries. However, when the vehicle is in a long downhill state, the SOC of the power battery is often at a high level, so that the vehicle must be braked by mechanical braking, resulting in energy loss and reducing the hydrogen utilization rate of the fuel cell. Contents of the invention [0003] In view of this, the present invention provides a control method of a fuel cell system capable of recovering energy, so as to improve the above problems. [0004] The present invention adopts the following scheme: a control ...

AI Technical Summary

Problems solved by technology

However, when the whole vehicle is in a long downhill state, the SOC of the power battery is often at a high level, so that the whole vehicle must be braked by mechanical braking, resulting in energy loss and reducing the hydrogen utilization rate of the fuel cell.

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