A cooling control method of a power battery of a new energy vehicle

A new energy vehicle, power battery technology, applied in the direction of batteries, secondary batteries, battery pack components, etc., can solve the problems of increasing the fan energy consumption, fan operation noise, deviation from the optimal temperature range of the battery, and excessive cooling of the power battery. , to achieve the effect of improving the heat dissipation effect, uniform heat dissipation, and improving the ability of heat dissipation

Active Publication Date: 2018-12-11
任才银
View PDF7 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method of controlling the air volume of the fan based on the temperature of the battery surface in stages will also cause excessive cooling of the power battery when it is used at low power
Such a control system increases the energy consumption of the fan and the operating noise of the fan, causing frequent fluctuations in the battery temperature, and even deviates from the optimal temperature range of the 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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A cooling control method of a power battery of a new energy vehicle
  • A cooling control method of a power battery of a new energy vehicle
  • A cooling control method of a power battery of a new energy vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] use Figure 1-Figure 6 The cooling control method of an automobile power battery according to an embodiment of the present invention will be described as follows.

[0029] Such as figure 1 , figure 2 and image 3 As shown, a cooling control method of a new energy vehicle power battery according to the present invention, the method includes the following steps:

[0030] Step 1: Install the battery pack in the battery cooling system, and then assemble the battery cooling system to the car;

[0031] Step 2: Install a temperature sensor on the surface of the battery, collect relevant parameters of the battery, and calculate the calorific value of the battery per unit time through the relevant parameters;

[0032] Step 3: According to the calorific value of the battery in step 2, the surface temperature of the battery, and the temperature of the cold air at the air inlet, calculate the theoretical heat transfer per unit time on the surface of the battery using the theor...

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

No PUM Login to View More

Abstract

The invention belongs to the technical field of automobile battery safety control, in particular to a cooling control method of a power battery of a new energy vehicle. The method comprises the following steps: a battery pack is installed in a battery cooling system, and then the battery cooling system is assembled on the automobile; A temperature sensor is arrange on that surface of the battery,relevant parameters of the battery are collect, and the calorific value of the battery in unit time is calculated through the relevant parameters; According to the calorific value of the battery, thesurface temperature of the battery and the cold air temperature of the air inlet, the theoretical heat transfer per unit time of the battery surface is calculated by the heat transfer theory. The cooling air volume per unit time is calculated by the cold air temperature and theoretical heat transfer at the battery inlet. The output signal of the fan is adjusted according to the calculated coolingair volume value so that the fan outputs the calculated cooling air volume. As that battery temperature is always maintained in an optimal temperature range, the invention not only has high cool efficiency but also has obvious energy-saving effect.

Description

technical field [0001] The invention belongs to the technical field of automobile battery safety control, in particular to a cooling control method for a power battery of a new energy automobile. Background technique [0002] During the operation of a hybrid electric vehicle, the power battery is being charged and discharged at any time, which is accompanied by a large amount of heat generation, resulting in a high internal temperature of the battery. The characteristics of large temperature inertia and large delay cause the battery surface temperature to change slowly. In the traditional control method of the power battery cooling system, the fan generally adopts the method of controlling the air volume of the fan based on the temperature of the battery surface. The slow change of the battery surface temperature may cause insufficient cooling air volume of the fan at the current moment, causing the battery temperature to continue to rise. The fan cannot be prompted to ent...

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
no application Login to View More
IPC IPC(8): H01M10/613H01M10/625H01M10/633H01M10/655H01M10/6551H01M10/6554H01M10/6563H01M10/6566H01M2/10
CPCH01M2220/20H01M10/613H01M10/625H01M10/633H01M10/655H01M10/6551H01M10/6554H01M10/6563H01M10/6566H01M50/20Y02E60/10
Inventor王志强
Owner任才银