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Vehicle power battery system and heating management method thereof, and electric vehicle

A power battery and management method technology, which is applied to electric vehicles, electric vehicle charging technology, battery/fuel cell control devices, etc., can solve the problems of reducing battery life and battery damage, so as to reduce battery life and prevent damage Effect

Active Publication Date: 2014-08-06
GAC AION NEW ENERGY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the vehicle power battery system in the prior art cannot fully adapt to various possible situations, resulting in damage to the battery due to low temperature charging and reducing the service life of the battery, the present invention provides a vehicle power battery system

Method used

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  • Vehicle power battery system and heating management method thereof, and electric vehicle
  • Vehicle power battery system and heating management method thereof, and electric vehicle
  • Vehicle power battery system and heating management method thereof, and electric vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] as follows figure 1 As shown, this example provides a vehicle power battery system, including a lithium-ion battery pack 5 , a heating device 1 , a battery management system 2 , a heating mode selection device 3 , and a charging device 6 .

[0037] The charging device 6, the heating device 1 and the lithium-ion battery pack 5 are electrically connected to each other through a high-voltage wire 4; the so-called electrical connection between the two is connected to each other through a high-voltage wire 4 means that the charging device 6 and the heating device 1 are electrically connected through a high-voltage wire. The charging device 6 is electrically connected to the heating device 1 through a high-voltage wire 4 , and the heating device 1 is electrically connected to the lithium-ion battery pack 5 through a high-voltage wire.

[0038] The heating mode selection device is set between the heating device and the lithium-ion battery pack, the heating device and the charg...

Embodiment 2

[0047] The embodiment of the present invention also discloses a heating mode selection device 3, such as image 3 As shown, it includes a heating switch K1 and a charging switch K2; the heating switch K1 is set on the high-voltage line 4 between the heating device 1 and the charging device 6, and between the heating device 1 and the lithium-ion battery pack 5, and is used to control the heating device 1 and the charging device 6. The circuit between the heating device 1 and the lithium-ion battery pack 5 is switched on and off. The charging switch K2 is set on the high-voltage line 4 between the lithium-ion battery pack 5 and the charging device 6, the lithium-ion battery pack 5 and the heating device 1, and is used to control the 5 and the circuit break between charging device 6.

[0048] Generally, two high-voltage lines at the positive and negative ends are used for DC high-voltage connection, and the heating switch K1 and the charging switch K2 in this embodiment can be a...

Embodiment 3

[0055] On the basis of Example 1, this example provides another preferred heating mode selection device 3, such as Figure 5 As shown, the heating mode selection device 3 includes a first heating switch K3 and a second heating switch K4; the first heating switch K3 is arranged on the high voltage line between the heating device 1 and the charging device 6, and is used to control the heating device 1 and the charging device 6; the second heating switch K4 is set on the high-voltage line 4 between the heating device 1 and the lithium-ion battery pack 5, and is used to control the circuit switching between the heating device 1 and the lithium-ion battery pack 5. In addition, in this example, a charging switch K2 is set to charge the lithium-ion battery pack 5 through the charging device 6. The charging switch K2 is arranged on the high-voltage line between the lithium-ion battery pack 5 and the charging device 6. It is used to control the on-off of the circuit between the lithium...

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Abstract

In the prior art, the vehicle power battery system and the heating management method thereof can not be completely adapt to various possible conditions so as to cause damage on the battery and reduced battery service life due to low temperature charging. In order to solve the problems in the prior art, the present invention provides a vehicle power battery system and a preparation method thereof, and an electric vehicle, wherein the vehicle power battery system comprises a lithium ion battery pack, a heating device, a battery management system, a heating mode selection device and a charging device, and the heating mode selection device is arranged among the heating device, the lithium ion battery pack and the charging device, is controlled by the battery management system, and is provided for switching an electrical connection between the heating device and the lithium ion battery pack or an electrical connection between the heating device and the charging device. With the vehicle power battery system and the heating management method thereof, various possibly-occurring environment conditions can be effectively treated, the occurrence of the conditions of damage on the battery and the reduced battery service life due to low temperature charging can be prevented, and it is ensured that the battery charging process is performed at a suitable environment temperature.

Description

technical field [0001] The invention relates to a power battery system, in particular to a power battery system including a heating device, and a heating method for the power battery system. Background technique [0002] At present, due to the continuous depletion of resources such as oil, and the adverse impact on the environment when burned, people are rethinking the energy supply method of vehicles and looking for clean energy instead of gasoline, such as using battery modules for power supply. At present, various types of power batteries have appeared, such as lithium-ion power batteries, lead-acid power batteries, nickel power batteries, fuel cells, etc., especially lithium-ion power batteries have been widely used due to their high specific energy and specific power. on various electric vehicles. [0003] The R&D and commercialization of lithium-ion batteries as vehicle power batteries have attracted more and more attention from battery manufacturers and automobile ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/46H01M10/625H01M10/615H01M10/635B60L11/18
CPCY02T10/7011B60L53/00B60L58/27H01M10/46H01M2220/20Y02E60/10Y02T10/70Y02T10/7072Y02T90/14
Inventor 王清泉
Owner GAC AION NEW ENERGY AUTOMOBILE CO LTD
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