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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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  • Claims
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Problems solved by technology

[0006] The embodiment of the present application provides a power battery voltage control method and related equipment, the main purpose of which is to solve the problem that the current power battery output power cannot meet the required driving power under low voltage conditions

Method used

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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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Embodiment Construction

[0034] The embodiment of the present application provides a power battery voltage control method and related equipment. This solution detects the SOC value of the power battery. When the SOC value is lower than the first threshold, the parallel connection of single cells is controlled to be connected in parallel, which can Increase the voltage of the power battery, thereby increasing the output power of the power battery.

[0035] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of this application and the above drawings are used to distinguish similar objects, and not necessarily Used to describe a specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments described herein can be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, a...

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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...

Claims

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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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