Electric vehicle charging and heating control method and device, storage medium and electric vehicle

Abstract

The invention discloses an electric vehicle charging and heating control method and device, a storage medium and an electric vehicle, and the method comprises the steps: obtaining the allowable charging and discharging power of a power battery and the target heating power of a heating device in electric equipment when the heating and charging of the power battery is determined; gradually loading the allowable heating power of the heating device according to a preset step length until the allowable heating power reaches the target heating power, obtaining the actual heating power of the heatingdevice after each time of power loading and stable heating of the heating device, and obtaining the actual consumed power of the electric equipment according to the actual heating power of the heating device, and controlling the output power of the charging device according to the actual consumption power of the electric equipment and the allowable charging and discharging power of the power battery. Therefore, according to the control method, the power of the electric vehicle for heating and charging and discharging can be distributed in a balanced mode, the electric vehicle can be charged and discharged stably, and meanwhile the charging and discharging cost and difficulty of the electric vehicle are reduced.

Description

technical field [0001] The present invention relates to the technical field of battery charging, and in particular to a charging and heating control method for an electric vehicle, a computer-readable storage medium, an electric vehicle and a charging and heating control device for an electric vehicle. Background technique [0002] With the maturity of electric vehicle application technology, the cost of electric vehicles is gradually reduced, so electric vehicles are becoming more and more popular. The battery of an electric vehicle is the device that can most affect the performance of an electric vehicle. Since the battery of an electric vehicle is sensitive to temperature, if the ambient temperature of the battery is too low, it will affect the charge and discharge performance of the battery. Therefore, how to improve the fragile charge and discharge of electric vehicle batteries at low temperatures and protect electric vehicle batteries from shocks at low temperatures ha...

AI Technical Summary

Problems solved by technology

[0004] In the related technology, when the switches K1 and K2 are turned off, all the energy of the vehicle heating device comes from the power grid. Due to the small AC charging power, when the load power fluctuations occur in the high-voltage accessories of the vehicle, it will directly affect the stable output of the charging device.

In order to compensate for the impact of load power fluctuations and stabilize the output of the charging device, it is necessary to add additional hardware circuits and software control logic to the charging device, but at the same time it will increase the difficulty of debugging

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