Power battery thermal management control method

A power battery and control method technology, applied in battery/fuel cell control devices, secondary batteries, circuits, etc., can solve problems such as cruising range anxiety, ensure efficient utilization, optimize electricity economy, and avoid cruising range anxiety. Effect

Active Publication Date: 2020-09-22
AIWAYS AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This creates a contradiction, that is, the contradiction between ensuring the comfort of the vehicle (such as the use of air conditioners, etc.) and the anxiety of the cruising range.

Method used

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  • Power battery thermal management control method
  • Power battery thermal management control method
  • Power battery thermal management control method

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Embodiment Construction

[0021] In order to better understand the purpose, structure and function of the present invention, a power battery thermal management control method of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0022] figure 1 A flow chart of a power battery thermal management control method according to an embodiment of the present invention is shown. figure 2 A schematic diagram of the system connection of the power battery thermal management control method according to the embodiment of the present invention is shown. Such as figure 1 and figure 2 As shown, the power battery thermal management control method includes: Step 1 (S1), the vehicle controller (VCU) judges the operating condition of the vehicle, and when the operating condition of the vehicle is the driving state, detects the thermal management condition of the vehicle; step Two (S2), the battery management system (BMS) sends the cooling / heating request si...

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Abstract

The invention belongs to the field of electric vehicle power battery systems, and discloses a power battery thermal management control method. The power battery thermal management control method comprises the steps that: a vehicle control unit judges the use condition of a vehicle, and when the use condition of the vehicle is a driving state, the whole vehicle thermal management working conditionis detected; a battery management system sends a cooling / heating request signal of a power battery to the vehicle control unit and an air conditioner controller; the vehicle control unit judges whether a cooling / heating request target with a priority higher than that of the power battery exists in the whole vehicle thermal management working condition or not, if yes, the vehicle control unit sendsa request signal of the target to the air conditioner controller, and the air conditioner controller preferentially responds to the cooling / heating request of the target; and if not, the vehicle control unit controls the air conditioner controller to respond to the cooling / heating request of the power battery. According to the power battery thermal management control method, the problem of contradiction between passenger comfort and endurance mileage anxiety can be relieved based on different vehicle working conditions, and the power battery can be guaranteed to be in an optimal charging anddischarging temperature range.

Description

technical field [0001] The invention belongs to the field of electric vehicle power battery systems, and in particular relates to a power battery thermal management control method. Background technique [0002] The power battery is the only source of energy for electric vehicles, providing driving energy conversion for electric vehicles and the facilities in them. For example, to provide kinetic energy for the driving of electric vehicles, or to provide electrical energy for the air conditioning system in electric vehicles, etc. The cruising range of electric vehicles directly affects the driving experience of the vehicle, especially when driving an electric vehicle to go out, mileage anxiety is also a headache in the process of using electric vehicles. [0003] In the prior art, the conversion efficiency of the energy conversion for the power battery to provide driving force for the electric vehicle cannot reach 100%. Overheating or overcooling of the power battery will a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L58/26B60L58/27B60H1/00B60S1/02H01M10/625H01M10/635H01M10/663
CPCB60L58/26B60L58/27B60H1/00392B60H1/00271B60H1/00278B60S1/023H01M10/625H01M10/635H01M10/663Y02E60/10Y02T10/70
Inventor 姚丽君
Owner AIWAYS AUTOMOBILE CO LTD
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