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Storage battery starting performance prediction method, storage medium and electronic equipment

A start-up performance and prediction method technology, applied in the automotive field, can solve problems such as engine frequency reduction, failure to update in time, MHEV start-stop failure, etc., to achieve the effect of improving calculation accuracy and judgment reliability

Active Publication Date: 2020-09-08
DONGFENG MOTOR CO LTD
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Problems solved by technology

However, since the start-stop process of the MHEV is started by a 48-volt lithium battery, the frequency of using the battery to start the engine is greatly reduced, resulting in the inability to use the small charging and discharging current of the battery during each start-up process to calculate the SOF of the battery, which cannot be updated in time. The battery SOF calculation method is likely to lead to a decrease in the accuracy of the battery SOF, resulting in the risk of MHEV start-stop failure, poor judgment reliability, and cannot be applied to MHEV

Method used

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  • Storage battery starting performance prediction method, storage medium and electronic equipment
  • Storage battery starting performance prediction method, storage medium and electronic equipment
  • Storage battery starting performance prediction method, storage medium and electronic equipment

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Embodiment Construction

[0047] The specific implementation manner of the present invention will be further described below in conjunction with the accompanying drawings.

[0048] It is easy to understand that, according to the technical solution of the present invention, those skilled in the art can replace various structural modes and implementation modes without changing the essence and spirit of the present invention. Therefore, the following specific embodiments and drawings are only exemplary descriptions of the technical solution of the present invention, and should not be regarded as the entirety of the present invention or as a limitation or restriction on the technical solution of the invention.

[0049] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom that are mentioned or may be mentioned in this specification are defined relative to the structures shown in the drawings, and they are It is a relative concept, so it may change accordingly accord...

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Abstract

The invention provides a storage battery starting performance prediction method, a storage medium and electronic equipment, and the method comprises the steps: obtaining the current voltage of a storage battery and the current current corresponding to the current voltage, and enabling the current voltage to be in positive correlation with the current current; inputting the current voltage and thecurrent current into a preset resistance model for calculating the ohmic resistance of the storage battery to obtain the current ohmic resistance; calculating the current lowest end voltage of the storage battery according to the current ohmic resistance; and judging the starting performance of the storage battery according to the current lowest end voltage. By implementing the method and the device, the SOF of the storage battery can be calculated no matter whether the storage battery is large in charge-discharge current or small in charge-discharge current, so that the calculation precisionof the SOF of the storage battery is improved, the SOF of the storage battery is updated in time, and the judgment reliability is improved.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a battery start performance prediction method, a storage medium and electronic equipment. Background technique [0002] With the implementation of the country's double credit policy for the passenger car market, the fuel consumption requirements of the vehicle are becoming more and more stringent. As a technical solution to effectively balance the fuel consumption target and the cost target, the traditional internal combustion engine vehicle (ICEV) The advanced start-stop technology is powered by a lead-acid battery, and the traditional starter is used to start, which has problems such as long start-up time, large engine vibration, and loud noise. Since the 48-volt mild hybrid (Mild Hybrid Electric Vehicle, MHEV) is powered by a 48-volt lithium battery and started by a belt starter generator (Belt Starter Generator, BSG), the start-up process has a longer start-up time than I...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G01R31/367G01R31/385G06F111/10
CPCG06F30/20G01R31/367G01R31/385G06F2111/10Y02E60/10
Inventor 余庆祥刘庆明孙建伟何旭阳季发举
Owner DONGFENG MOTOR CO LTD
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