Device and method for controlling battery cooling, and vehicle system

Patent metadata

Field	Value
Publication number	US-2018312076-A1
Application number	US-201715706196-A
Country	US
Kind code	A1
Filing date	Sep 15, 2017
Priority date	Apr 28, 2017
Publication date	Nov 1, 2018
Grant date	—

Abstract

A battery cooling control device includes a controller that monitors temperature information of a battery, monitors vehicle speed information of a vehicle, determines an operating mode of the vehicle on the basis of the vehicle speed information and generates control information of a cooling fan by determining a control condition of the cooling fan that has been set to correspond to the operating mode of the vehicle, based on the temperature information of the battery and the vehicle speed information, and controls cooling of the battery by outputting, to the cooling fan, a control signal corresponding to the control information of the cooling fan.

First claim

What is claimed is:

1 . A device for controlling battery cooling, the device comprising a processor configured to:
monitor temperature information of a battery; monitor vehicle speed information of a vehicle; determine an operating mode of the vehicle on the basis of the vehicle speed information and generate control information of a cooling fan by determining a control condition of the cooling fan that has been set to correspond to the operating mode of the vehicle, based on the temperature information of the battery and the vehicle speed information; and control cooling of the battery by outputting, to the cooling fan, a control signal corresponding to the control information of the cooling fan.

2 . The device of claim 1 , wherein the processor determines the operating mode of the vehicle to be a driving mode if the speed of the vehicle exceeds a set reference vehicle speed, and determines the operating mode of the vehicle to be a stop mode if the vehicle speed is lower than or equal to the set reference vehicle speed.

3 . The device of claim 2 , wherein if the operating mode is determined to be the driving mode, the processor determines the control condition of the cooling fan on the basis of a control map in which operating stages of the cooling fan according to a vehicle speed change and a maximum battery temperature change are defined.

4 . The device of claim 3 , wherein the processor generates the control information of the cooling fan that corresponds to the speed of the vehicle and the maximum temperature of the battery, based on the control map.

5 . The device of claim 2 , wherein if the operating mode is determined to be the stop mode, the processor determines the control condition of the cooling fan on the basis of a rate of increase in the maximum battery temperature.

6 . The device of claim 5 , wherein if the rate of increase in the maximum battery temperature exceeds a set reference rate, the processor generates the control information of the cooling fan that restricts an operating stage of the cooling fan to a set operating stage.

7 . The device of claim 6 , wherein the processor updates the control information of the cooling fan if the rate of increase in the maximum battery temperature is lower than or equal to the set reference rate or the vehicle speed exceeds the set reference vehicle speed while the operating stage of the cooling fan is restricted to the set operating stage.

8 . The device of claim 5 , wherein if the rate of increase in the maximum battery temperature is lower than or equal to a set reference rate, the processor determines the control condition of the cooling fan on the basis of a control map in which operating stages of the cooling fan according to a vehicle speed change and a maximum battery temperature change are defined.

9 . The device of claim 8 , wherein the processor generates the control information of the cooling fan that corresponds to the speed of the vehicle and the maximum temperature of the battery, based on the control map.

10 . A method for controlling battery cooling, the method comprising:
monitoring, by a processor, temperature information of a battery and vehicle speed information of a vehicle; determining, by the processor, an operating mode of the vehicle on the basis of the vehicle speed information and generating control information of a cooling fan by determining a control condition of the cooling fan that has been set to correspond to the operating mode of the vehicle, based on the temperature information of the battery and the vehicle speed information; and controlling, by the processor, cooling of the battery by outputting, to the cooling fan, a control signal corresponding to the control information of the cooling fan.

11 . The method of claim 10 , wherein the generating of the control information of the cooling fan includes:
determining the operating mode of the vehicle to be a driving mode if the speed of the vehicle exceeds a set reference vehicle speed; and determining the operating mode of the vehicle to be a stop mode if the vehicle speed is lower than or equal to the set reference vehicle speed.

12 . The method of claim 11 , wherein the generating of the control information of the cooling fan further includes:
determining the control condition of the cooling fan on the basis of a control map in which operating stages of the cooling fan according to a vehicle speed change and a maximum battery temperature change are defined, if the operating mode is determined to be the driving mode.

13 . The method of claim 12 , wherein the generating of the control information of the cooling fan further includes:
generating control information of the cooling fan that corresponds to the speed of the vehicle and the maximum temperature of the battery, based on the control map.

14 . The method of claim 11 , wherein the generating of the control information of the cooling fan further includes:
determining the control condition of the cooling fan on the basis of a rate of increase in the maximum battery temperature, if the operating mode is determined to be the stop mode.

15 . The method of claim 14 , wherein the generating of the control information of the cooling fan further includes:
generating control information of the cooling fan that restricts an operating stage of the cooling fan to a set operating stage, if the rate of increase in the maximum battery temperature exceeds a set reference rate.

16 . The method of claim 15 , wherein the generating of the control information of the cooling fan further includes:
updating the control information of the cooling fan if the rate of increase in the maximum battery temperature is lower than or equal to the set reference rate or the vehicle speed exceeds the set reference vehicle speed while the operating stage of the cooling fan is restricted to the set operating stage.

17 . The method of claim 14 , wherein the generating of the control information of the cooling fan further includes:
determining the control condition of the cooling fan on the basis of a control map in which operating stages of the cooling fan according to a vehicle speed change and a maximum battery temperature change are defined, if the rate of increase in the maximum battery temperature is lower than or equal to a set reference rate.

18 . The method of claim 17 , wherein the generating of the control information of the cooling fan further includes:
generating control information of the cooling fan that corresponds to the speed of the vehicle and the maximum temperature of the battery, based on the control map.

19 . A vehicle system comprising:
a battery configured to supply a driving voltage to a vehicle; a cooling fan configured to cool the battery by operating a motor; a vehicle speed sensor configured to generate vehicle speed information of the vehicle; and a processor configured to determine an operating mode of the vehicle on the basis of the vehicle speed information, to generate control information of the cooling fan by determining a control condition of the cooling fan that has been set to correspond to the operating mode of the vehicle, based on temperature information of the battery and the vehicle speed information, and to control cooling of the battery by outputting, to the cooling fan, a control signal corresponding to the generated control information of the cooling fan.

20 . The vehicle system of claim 19 , wherein the processor determines the control condition of the co

Assignees

• Hyundai Motor Co Ltd
• Kia Motors Corp

Inventors

• Lee Jung Hyun

Classifications

• B60L2240/36

  Temperature of vehicle components or parts · CPC title

• H01M10/625

  Vehicles · CPC title

• H01M2220/20

  Batteries in motive systems, e.g. vehicle, ship, plane · CPC title

• H01M10/633

  characterised by algorithms, flow charts, software details or the like · CPC title

• B60L2240/12

  Speed · CPC title