Method and device for realizing battery management of electric vehicles
An electric vehicle and battery management technology, applied in electric vehicles, electric traction, vehicle components, etc., can solve the problems of shortened battery life, damage, and affecting the power supply efficiency of the power supply battery pack, and achieve the effect of improving power supply efficiency
Active Publication Date: 2016-11-30
佛山天弓智能科技有限公司
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Problems solved by technology
However, because the battery life may be shortened or damaged under conditions such as heating, overcharge / overdischarge current, vibration, and extrusion, it is very important to monitor and manage batteries in electric vehicles
[0003] At present, the battery monitoring and management in electric vehicles is mainly to monitor the overcharge and overdischarge status of the battery, and the power supply system of electric vehicles includes a large number of battery cells. Insufficient power of multiple battery cells will affect the power supply efficiency of the current power supply battery pack
[0004] It can be seen from this that the current battery monitoring management of electric vehicles only monitors the overcharge and overdischarge status of the power supply battery pack, which does not meet the actual needs of battery monitoring in electric vehicles
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[0018] The present invention will be described in further detail below through specific implementation examples and in conjunction with the accompanying drawings.
[0019] An embodiment of the present invention provides a battery management implementation method for electric vehicles, such as figure 1 As shown, the main processing steps include:
[0020] Step S11: Detect the power of each battery cell in the current battery pack;
[0021] Step S12: When it is detected that the number of battery cells whose power in the current battery pack is lower than the preset power threshold is greater than or equal to the set value, the battery cells in the current battery pack whose power is higher than the preset power threshold and Among the spare battery cells, the battery cells whose power is higher than the preset power threshold are sorted according to the level of power;
[0022] Step S13: Form the first N battery cells with high power in the sorted results into a new power sup...
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The present invention relates to the technical field of electric vehicles, in particular, to a method and device for realizing battery management of electric vehicles. The method includes: detecting the power of each battery cell in the current battery pack; when it is detected that the number of battery cells whose power in the current battery pack is lower than a preset power threshold is greater than or equal to a set value, sorting the battery cells in the current battery pack whose power is higher than the preset power threshold and the battery cells in the spare battery cells whose power is higher than the preset power threshold according to the level of power; In the sorted results, the battery cells in the top N items with the highest electric power form a new power supply battery pack for power supply, where the value of N is equal to the number of battery cells that make up the power supply battery pack. The battery management implementation method and device of the electric vehicle provided by the present invention can improve the power supply efficiency of the battery pack, and further meet the actual demand of battery monitoring in the electric vehicle.
Description
technical field [0001] The present invention relates to the technical field of electric vehicles, in particular, to a method and device for realizing battery management of electric vehicles. Background technique [0002] With the shortage of energy, rising oil prices and increasingly serious urban environmental pollution, electric energy has been paid more and more attention as a new energy to replace oil. In recent years, electric vehicles powered by batteries have attracted more and more attention from the market. However, because the battery life may be shortened or damaged under conditions such as heating, overcharge / overdischarge current, vibration, and extrusion, it is very important to monitor and manage the battery in electric vehicles. [0003] At present, the battery monitoring and management in electric vehicles is mainly to monitor the overcharge and overdischarge status of the battery, and the power supply system of electric vehicles includes a large number of ...
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IPC IPC(8): B60L11/18
Inventor 龙志军陈永康刘顺祥
Owner 佛山天弓智能科技有限公司
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