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Power battery management method and system and automobile

A power battery and management method technology, which is applied in the direction of secondary battery charging/discharging, secondary battery repair/maintenance, etc., can solve problems such as power battery performance deterioration, and achieve the effect of improving service life and avoiding rapid failure

Inactive Publication Date: 2017-11-03
BEIJING ELECTRIC VEHICLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a power battery management method, system and automobile, which are used to solve the technical problem in the prior art that the performance of the power battery deteriorates rapidly due to frequent fast charging

Method used

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  • Power battery management method and system and automobile
  • Power battery management method and system and automobile
  • Power battery management method and system and automobile

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Experimental program
Comparison scheme
Effect test

Embodiment 2

[0079] Embodiment 2 of the present invention provides a power battery management method. In this embodiment, on the basis of the technical solution provided in Embodiment 1, the frequency threshold is determined according to the cell parameters.

[0080] figure 2 It is a flow chart of the power battery management method provided by Embodiment 2 of the present invention. like figure 2 As shown, the method in this embodiment may include:

[0081] Step 201. Obtain the current charging type when the battery is being charged.

[0082] In this embodiment, the specific implementation principle of step 201 is similar to that of step 101 in the first embodiment, and will not be repeated here.

[0083] Step 202, acquiring cell parameters.

[0084] Step 203: Determine a corresponding number of times threshold according to the cell parameters.

[0085] In this embodiment, the memory or the controller of the vehicle may store the corresponding relationship between the cell paramete...

Embodiment 3

[0097] Embodiment 3 of the present invention provides a power battery management method. In this embodiment, on the basis of the technical solution provided in Embodiment 1, the judgment of battery power during driving is added.

[0098] image 3 It is a flow chart of the power battery management method provided by Embodiment 3 of the present invention. like image 3 As shown, the method in this embodiment may include:

[0099] Step 301. Obtain the current charging type when the battery is being charged.

[0100] Step 302: If the current charging type is fast charging, add one to the number of times of fast charging, and determine whether the number of times of fast charging reaches a number threshold.

[0101] Step 303, prompting the user to switch to slow charging if the number of times threshold is reached.

[0102] In this embodiment, the specific implementation principles of steps 301 to 303 are similar to those of steps 101 to 103 in Embodiment 1, and will not be repe...

Embodiment 4

[0121] Embodiment 4 of the present invention provides a power battery management system. Figure 4 A structural block diagram of a power battery management system provided by Embodiment 4 of the present invention. like Figure 4 As shown, the system in this embodiment may include: a controller 401 and a pushing device 402;

[0122] The controller is used to: obtain the current charging type when the battery is being charged; if the current charging type is fast charging, add one to the number of fast charging, and judge whether the number of fast charging reaches the number threshold; if it reaches the number threshold, pass The push device prompts the user to switch to slow charging;

[0123] The push device is connected to the controller, and is used to prompt the user to switch to slow charging under the control of the controller.

[0124] Wherein, the push device may include a loudspeaker and / or a display device, which prompts the user to switch to slow charging through...

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Abstract

The invention provides a power battery management method and system and an automobile. The method comprises the steps of acquiring a current charging type when the battery is charged; adding 1 to charging frequency when the current charging type is fast charging, and judging whether the fast charging frequency reaches a frequency threshold; and reminding a user of switching to slow charging if the frequency threshold is reached. According to the power battery management method and system and the automobile, provided by the invention, the current charging type is acquired when the battery is charged, 1 is added to the charging frequency when the current charging type is fast charging, whether the fast charging frequency reaches the frequency threshold is judged, the user is reminded of switching to slow charge if the frequency threshold is reached, thus, the user can be timely and efficiently helped to form a good charging habit, the problems that the battery is rapidly exhausted, the battery consistency becomes poor and the driving range is rapidly getting shorter caused by frequent fast charging are prevented, and the service lifetime of a battery is prolonged.

Description

technical field [0001] The invention relates to new energy vehicle technology, in particular to a power battery management method, system and vehicle. Background technique [0002] With the aggravation of the energy crisis and the deterioration of control quality, the number of new energy vehicles is increasing day by day. As the main power source of new energy vehicles, the power battery has become one of the important factors restricting the development of new energy vehicles. [0003] The service life of the power battery is not only related to the chemical characteristics of the battery itself and the control algorithm of the battery management system, but also affected by the driver's usage habits. For example, the driver's habit of frequent deep discharge and frequent fast charging will accelerate the depletion of the power battery to a certain extent, making the consistency of the power battery worse, and the driving range will be shortened rapidly. Contents of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/44H01M10/42
CPCH01M10/42H01M10/44Y02E60/10
Inventor 严丽娟代康伟李明亮
Owner BEIJING ELECTRIC VEHICLE
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