Discharge control method and device for power battery, controller and automobile

A power battery and discharge control technology, applied in the direction of secondary battery charging/discharging, secondary battery repair/maintenance, etc., can solve the problems of power battery leftover power, unusable power, power waste and other problems

Active Publication Date: 2017-12-15
BEIJING ELECTRIC VEHICLE
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] Embodiments of the present invention provide a power battery discharge control method, device, controller, and vehicle to

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  • Discharge control method and device for power battery, controller and automobile
  • Discharge control method and device for power battery, controller and automobile
  • Discharge control method and device for power battery, controller and automobile

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Embodiment Construction

[0051] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0052] Embodiments of the present invention provide a discharge control method for a power battery, such as figure 1 As shown, the method includes:

[0053] Step 101: When the power battery enters the discharge state from the initial state, control the power battery to discharge until the state of charge reaches a preset reference value.

[0054] Wherein, the preset reference value represents the value of the state of charge of the power battery after...

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Abstract

The invention provides a discharge control method and device for a power battery, a controller and an automobile. The discharge control method for the power battery comprises steps as follows: when the power battery enters a discharge state from an initial state, the power battery is controlled to discharge until an SOC (state of charge) reaches a preset reference value, and the preset reference value represents an SOC value obtained after the power battery is discharged by electricity required by the whole automobile from the SOC being 100%; when the SOC of the power battery reaches the preset reference value, the power battery is controlled to discharge until the power battery discharges completely. Therefore, with the adoption of the scheme, power supply capacity of the power battery can be sufficiently played, and the problem of electricity waste caused by the fact that part of electricity can remain in the power battery and cannot be used in the prior art is solved.

Description

technical field [0001] The invention relates to the technical field of battery management, in particular to a discharge control method, device, controller and automobile of a power battery. Background technique [0002] As the power source of electric vehicles, power batteries directly affect the power and endurance of electric vehicles. However, due to the lack of packaging technology and battery quality control in domestic battery factories, the consistency of batteries in battery packs varies greatly and the consistency of different battery packs varies greatly. Therefore, in order to solve the consistency problem of the battery pack, in the prior art, the actual available power of the battery pack is often required to be much greater than the power demanded by the whole vehicle, resulting in that after different battery packs release the power that meets the needs of the whole vehicle, there will still be some The power can not be used, thus causing the problem of power...

Claims

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Application Information

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IPC IPC(8): H01M10/44
CPCH01M10/44Y02E60/10
Inventor 唐磊代康伟张骞慧
Owner BEIJING ELECTRIC VEHICLE
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