A new energy vehicle, power supply control method and storage medium

Abstract

A new energy vehicle, a power supply control method and a storage medium, belonging to the technical field of new energy vehicles. It includes a central control module, a power management module and a battery array. The power management module is connected to the central control module. It is characterized in that: a battery adaptation module and a voltage acquisition module corresponding to the battery modules in the battery array are provided, and the battery adaptation module and The voltage collection module is connected to the power management module; a power collection module and a temperature collection module are provided, and the output terminals of the power collection module and the temperature collection module are connected to the power management module; a temperature regulation module connected to the battery array is also provided, The power management module is bidirectionally connected with the temperature regulation module to regulate the temperature of the battery array. In this application, the idea of ​​equalizing the battery in series to control battery voltage or capacity is abandoned, eliminating the waste of capacity energy and power loss caused by equalization, and realizing adaptive power supply for new energy vehicles.

Description

technical field [0001] A new energy vehicle, a power supply control method and a storage medium, belonging to the technical field of new energy vehicles. Specifically, the invention relates to a new energy vehicle, a power supply control method of the new energy vehicle, and a storage medium of the power supply control method. Background technique [0002] At present, many countries have begun to pay attention to energy conservation and emission reduction and the development of low-carbon economy. Because new energy vehicles adopt electric drive technology, they can reduce carbon dioxide emissions or even achieve zero emissions, so they have received attention from various countries and developed rapidly. Electric vehicles, hybrid vehicles New energy vehicles such as electric vehicles and electric bicycles have become important means of transportation. For electric-driven vehicles, battery life is the most concerned issue at present. Battery technology is one of the most im...

AI Technical Summary

Problems solved by technology

[0009] Depend on Figure 15~16 It can be seen that the internal resistance of the battery and the chemical properties of the electrolyte will change with the load current and temperature, resulting in changes in the battery output voltage, output energy, and output capacity.

Figure 15~16 For several types of batteries, the relationship between the corresponding preset temperature, corresponding current discharge voltage, discharge time, and discharge capacity is to illustrate the difference in battery performance under different temperatures and different currents. This difference will easily affect the battery life of new energy vehicles. Time and electricity evaluation measurement deviation, affecting user experience

[0010] (2) The performance of the battery is temperature-sensitive, especially for lithium batteries, if the temperature is too high, it will accelerate the aging of the battery and even burn; if the temperature is too low, especially below 0°C, the internal resistance of the electrolyte impedance of the lithium battery Large, resulting in a large discharge rate, the output voltage becomes lower, the discharge capacity and discharge energy drop rapidly, and the cruising range in winter is seriously reduced

New energy vehicles are used outdoors, and battery performance faces serious challenges in summer and winter in northern regions or in tropical and frigid regions

Images