Power battery voltage control method and related equipment

A voltage control method and power battery technology, applied in battery circuit devices, charging/discharging current/voltage regulation, circuit monitoring/indication, etc., can solve the problem that the output power of the power battery cannot meet the driving power, and achieve the goal of improving the driving experience Effect

Pending Publication Date: 2022-03-01
VOYAH AUTOMOBILE TECH CO LTD
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[0006] The embodiment of the present application provides a power battery voltage control method and related equipment, the main purpose of

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  • Power battery voltage control method and related equipment
  • Power battery voltage control method and related equipment
  • Power battery voltage control method and related equipment

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[0034] The present application provides a power battery voltage control method and related device. This scheme is controlled by detecting the SOC value of the power battery, and in the case where the SOC value is lower than the first threshold, the control parallel cell is changed in parallel, which can Improve the voltage of the power battery to increase the output power of the power battery.

[0035] The description and claims of the present application and the terms "first", "second", "third", "fourth", etc. in the above drawings are used to distinguish similar objects without having to use Describe a specific order or intern order. It should be understood that the data such as use can be interchangeable in appropriate, so that the embodiments described herein can be implemented in the order other than the content illustrated or described herein. Moreover, the terms "including" and "have" and any variation, it is intended that it is intended that it is not included in the proce...

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Abstract

The invention discloses a power battery voltage control method and related equipment. The method comprises the following steps: acquiring an SOC value of the power battery; under the condition that the SOC value is lower than a first threshold value, the at least two single battery cells are controlled to be connected in series from parallel connection, the voltage of the power battery is increased through the method, and therefore the output power of the power battery is increased to meet the driving power requirement of the vehicle. Through the voltage control method of the scheme, the phenomenon that the output power cannot meet the required driving power due to the fact that the voltage is low when the power battery is in low electric quantity is improved, and the driving experience of a user is improved.

Description

technical field [0001] This specification relates to the field of new energy vehicles, and more specifically, the present invention relates to a power battery voltage control method and related equipment. Background technique [0002] With the country's policy support for new energy vehicles and people's deep understanding of green travel, the number of new energy vehicles in my country has grown rapidly year by year. However, compared with conventional power vehicles, the power performance of the power battery of new energy vehicles gradually decreases with the remaining power, which has a more obvious impact on the acceleration performance of the vehicle. [0003] The main reason for the reduction of output power is that the capacity and voltage of the power battery gradually decrease with the use of the power battery. The output power is the product of the battery capacity and the battery voltage. The key method, and the capacity of the power battery is gradually reduced...

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Application Information

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IPC IPC(8): H02J7/00
CPCH02J7/007H02J7/0048H02J7/0063
Inventor 朱金鑫金兆鑫刘振勇黄敏
Owner VOYAH AUTOMOBILE TECH CO LTD
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