Charging control method of electric vehicle, charging device and vehicle
A charging control method and technology for electric vehicles, which are applied in electric vehicle charging technology, battery/fuel cell control devices, electric vehicles, etc., can solve the problems of inability to replenish, damage, and charge and discharge capacity discounts, so as to reduce capacity requirements, Improve stability and avoid the effect of not being able to charge
Inactive Publication Date: 2020-12-11
宝能(广州)汽车研究院有限公司
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[0002] Current electric vehicles usually use lithium batteries as power batteries. Due to their physical and chemical characteristics, the charging and discharging capabilities of lithium batteries will be greatly reduced at low temperatures. When the temperature of lithium batteries is lower than a certain threshold, they will not be able to Replenish it with electricity, otherwise it is very likely to cause irreversible damage. How to reliably realize low-temperature charging of electric vehicles is a problem to be solved
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[0027] The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention and should not be construed as limiting the present invention.
[0028] Before introducing the charging control method, charging device and vehicle of electric vehicles, we will briefly introduce the defects of related technologies. In order to realize low-temperature charging of electric vehicles, the thermal management loop of the power battery is usually directly charged from the charging pile before charging. The power supply is supplied, and the power battery is heated through the thermal management circuit of the power battery. However, when the ...
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The invention discloses a charging control method of an electric vehicle, a charging device and a vehicle. The charging control method of the electric vehicle comprises the following steps that when it is determined that a power battery of the electric vehicle is charged, the temperature of the power battery is obtained; when it is determined that the temperature of the power battery is smaller than a preset temperature threshold value, power is supplied to a driving motor of the electric vehicle through charging equipment so that the driving motor can emit heat, and a heat management loop ofthe driving motor conducts heat generated by the driving motor to a heat management loop of the power battery so that the power battery can be heated. According to the charging control method of the electric vehicle, when the electric vehicle starts to be charged at a low temperature, the driving motor can be powered through the charging equipment, and heat generated after the driving motor is powered heats the power battery, so that the charging experience of the electric vehicle at the low temperature is improved, the situation that the electric vehicle cannot be charged is avoided, and therefor the product competitiveness of the electric vehicle is improved.
Description
technical field [0001] The present invention relates to the field of electric vehicles, in particular, to a charging control method for an electric vehicle, a charging device and a vehicle. Background technique [0002] Current electric vehicles usually use lithium batteries as power batteries, and due to their physical and chemical properties, the charge and discharge capacity of lithium batteries will be greatly reduced at lower temperatures. When the temperature of lithium batteries is lower than a certain threshold, it is completely impossible. It is very likely to cause irreversible damage if it is replenished with electricity. How to reliably realize low-temperature charging of electric vehicles is a problem to be solved. SUMMARY OF THE INVENTION [0003] The present invention aims to solve one of the above-mentioned technical problems in the prior art at least to a certain extent. Therefore, the first objective of the present invention is to provide a charging cont...
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IPC IPC(8): B60L53/00B60L58/27B60L15/20
CPCB60L15/20B60L2240/423B60L2240/642B60L53/00B60L58/27Y02T10/70Y02T10/7072Y02T10/72Y02T90/14
Inventor 刘隆杨春雷
Owner 宝能(广州)汽车研究院有限公司