Control device and method for battery capacity

Abstract

The invention discloses a control device for battery capacity. The control device for the battery capacity is applied to a power battery of a new energy automobile. The power battery is composed of aplurality of battery units. The control device for the battery capacity comprises voltage monitoring assemblies and switch assemblies, wherein the voltage monitoring assemblies are arranged in the battery units in a one-to-one correspondence mode and are electrically connected with a vehicle control system, used for obtaining a current working state of the vehicle from the vehicle control system,and monitoring voltage of the power battery based on the current working state and outputting corresponding monitoring results; and the switch assemblies are arranged in the battery units in a one-to-one correspondence mode and used for switching a self switch state based on the monitoring results so as to switch a conducting state of the battery units. The invention further discloses a control method for the battery capacity. Reasonable charging and discharging control is carried out on the battery units of the power battery, so that excessive charging and discharging of the power battery areeffectively avoided, the service life of the battery is prolonged, the optimal cruising capacity of the battery is guaranteed, and the user experience is improved.

Description

technical field [0001] The invention relates to the field of new energy vehicles, in particular to a battery capacity control device and a battery capacity control method. Background technique [0002] With the continuous development of automobile technology, the continuous depletion of fuel resources and the environmental pollution caused by fuel vehicles, engineers are committed to developing a new generation of energy sources with the advantages of sustainability, environmental friendliness, and high energy utilization. Automobiles, so new energy vehicles are rapidly developed. [0003] New energy vehicles include pure electric vehicles, extended-range electric vehicles, hybrid vehicles, fuel cell electric vehicles, hydrogen engine vehicles, and other new energy vehicles. Currently, electric vehicles are relatively mature for commercial use. [0004] As the core component of new energy vehicles, the performance of power batteries and the length of service life have a gre...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the technical problem in the prior art that the service life of the power battery is low due to inaccurate control of the power battery, the embodiment of the present invention provides a battery capacity control device and a battery capacity control method, through the control of the power battery Each battery unit performs reasonable charge and discharge control, thereby effectively avoiding excessive charge and discharge of the power battery, improving the service life of the battery, ensuring the best battery life of the power battery, and improving user experience

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