SOC balance control method, vehicle control unit, equipment and readable storage medium

Abstract

The invention discloses a fuel cell vehicle SOC balance control method which comprises the steps that vehicle signals are obtained, and the vehicle signals comprise the environment temperature, the battery SOC value, the torque management mode and the whole vehicle consumption power; extracting SOC balance power according to the environment temperature and the SOC value of the battery; calculating the theoretical request power of the fuel cell according to the torque management mode, the vehicle consumption power and the SOC balance power; performing correction processing on the theoretical request power to generate actual request power of the fuel cell; and sending the actual request power to a fuel cell vehicle controller to drive the fuel cell to respond to the actual request power. The invention further discloses a vehicle control unit, computer equipment and a computer readable storage medium. According to the invention, the output power of the fuel cell can be adjusted in real time, thereby ensuring that the SOC of the fuel cell vehicle is maintained in a reasonable interval.

Description

technical field [0001] The present invention relates to the technical field of fuel cell vehicles, in particular to a fuel cell vehicle SOC balance control method, a vehicle controller, computer equipment and a computer-readable storage medium. Background technique [0002] With the continuous consumption of traditional fossil energy, the development and utilization of new energy vehicles has gradually become a trend, and fuel cell vehicles are one of the new energy vehicles. The power generation of a fuel cell vehicle is mainly determined by the vehicle controller according to the remaining power (State Of Charge, SOC) of the power battery. Therefore, the battery SOC balance strategy of fuel cell vehicles is a key factor affecting its endurance and the service life of fuel cells. [0003] At present, the battery SOC balance strategy mainly adjusts the requested power of the current fuel cell according to the required power of the whole vehicle, without considering the impa...

AI Technical Summary

Problems solved by technology

[0003] At present, the battery SOC balance strategy is mainly to adjust the current requested power of the fuel cell according to the required power of the vehicle, without considering the impact of the low temperature environment on the fuel cell

Therefore, the existing battery SOC balance strategy uses the same requested power and the same balance rate under each temperature condition, and cannot make an optimal decision on vehicle driving performance and power battery life protection, and at the same time cannot allow longer battery life at room temperature. The function of charging with lower power periodically and quickly restoring SOC to a reasonable range at low temperature

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