Temperature control method and device for power battery
A temperature control method and power battery technology, applied in the field of vehicles, can solve the problems of excessive energy consumption of thermal management servo system, and achieve the effect of saving servo energy consumption and avoiding transitional servo
Pending Publication Date: 2022-07-01
GREAT WALL MOTOR CO LTD
View PDF0 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0006] In view of this, the present invention aims to propose a temperature control method and device for a power battery to solve the problem of excessive consumption of energy consumption of the thermal management servo system in the prior art due to the influence of the temperature sensor accuracy of the power battery
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0055] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0056] refer to figure 1 , showing a flow chart of a temperature control method for a power battery provided by an embodiment of the present invention.
[0057] The embodiments of the present invention are applied to vehicles. Before introducing the temperature control method for the power battery, the various components involved are described.
[0058] In the embodiment of the present invention, the vehicle includes: a power battery, a heat e...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a temperature control method and device for a power battery, and relates to the technical field of vehicles. The method comprises the following steps: acquiring a first battery cell temperature and a target battery cell temperature of the power battery; according to the first battery cell temperature and the target battery cell temperature, the heat exchange demand and the heat exchange type are determined; a temperature control system is controlled to execute temperature control operation corresponding to the heat exchange type; the heat exchange device is controlled to exchange heat with the temperature control system, and in the heat exchange process, the actual heat exchange amount of the heat exchange device and the battery heat production amount are obtained; according to the heat exchange demand, the actual heat exchange amount and the battery heat production amount, the residual heat exchange amount is determined; when the residual heat exchange amount is larger than a preset threshold value, the process of obtaining the actual heat exchange amount of the heat exchange device and the heat production amount of the battery is executed; and when the residual heat exchange amount is smaller than or equal to the preset threshold value, heat exchange is stopped. According to the application, the actual heat exchange demand quantity required by the power battery at present is taken as a servo request condition, so that the over-servo energy consumption waste of the thermal servo management system caused by the temperature precision influence is avoided.
Description
technical field [0001] The present invention relates to the technical field of vehicles, and in particular, to a temperature control method and device for a power battery. Background technique [0002] At present, the power battery is the main energy storage source for the operation of pure electric vehicles and hybrid electric vehicles, and it is usually necessary to ensure that the temperature of the cells of the power battery is within a certain range to work in the best state. [0003] In the prior art, after the temperature sensor of the power battery monitors the cell temperature of the power battery, it is determined whether to perform heat exchange by judging whether the cell temperature satisfies the heat exchange condition. When the heat exchange conditions are met, the heat management servo system of the power battery controls the heat exchange device of the power battery to exchange heat with the air conditioning system or the cooling system of the vehicle. Due ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/48H01M10/613H01M10/615H01M10/625H01M10/633H01M10/635H01M10/6568
CPCH01M10/486H01M10/613H01M10/615H01M10/625H01M10/633H01M10/635H01M10/6568H01M10/48
Inventor 常鑫刘伟李晓腾赵林汤海张金帅
Owner GREAT WALL MOTOR CO LTD