A fuel cell vehicle and its starting method and device

Abstract

The invention relates to a fuel cell vehicle and a starting method and device thereof, including: detecting the temperature of the power battery and the fuel cell, and if the temperatures of the power battery and the fuel cell are both lower than their corresponding set target temperature values, detecting the temperature of the power battery State of charge, if the state of charge of the power battery > the first preset value, output an instruction to control the vehicle to heat the power battery and the fuel cell while driving; if the second preset value < state of charge of the power battery≤ The first preset value is output to heat the power battery and the fuel cell first, and then the driving command is controlled after the power battery and the fuel cell are heated; if the state of charge of the power battery is less than or equal to the second preset value, the output is Instructions for charging the power battery. The present invention fully considers the power of the power battery, can effectively realize the heating operation or the driving operation of the power battery and the fuel cell, and improves the control reliability of the vehicle.

Description

technical field [0001] The invention relates to a fuel cell vehicle and a starting method and device thereof, belonging to the technical field of new energy vehicles. Background technique [0002] At present, there are certain problems in the environmental adaptability of the fuel cell system and the power cell system. If the fuel cell is in a low temperature state, the fuel cell cannot be started; if the power cell is in a low temperature state, the output power efficiency of the power cell is extremely low and The power battery cannot be charged. Therefore, in general, when the vehicle starts, the temperature of the fuel cell and the power battery needs to be detected. If the temperature of the fuel cell and the power battery are both low, the fuel cell and the power battery need to be heated to wait for the temperature of the fuel cell and the power battery. After raising, drive again. However, in this process, the power status of the power battery and the driver's feel...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a fuel cell vehicle and its starting method and device to solve the problem in the prior art that the heating operation of the power battery and the fuel cell cannot be completed or the driving operation cannot be completed due to the lack of consideration of the power condition of the power battery. question

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